Service Manual. Clamps for Bolt-on Arms and Turnafork

Transcription

1 Service Manua Camps for Bot-on Arms and Turnafork Seria Numbers through Basic Camps Sideshifting Camps Revoving Camps Turnafork Mode C4T Manua Number Cascade is a registered trademark Of Cascade Corporation furnafork is a trademark of Cascade CorDoration

2 h. Contents 0 Page Number INTRODUCTION, Section INSTALLATION INSTRUCTIONS, Section Truck System Requirements Prior to Instaation Instaation Attachment Stop Bocks Prior to Operation PERIODIC MAINTENANCE, Section TROUBLESHOOTING, Section SERVICE, Section Camp Remova and Instaation Arms Arm Remova and Instaation Arm Carrier/ Load Arm Disassemby and Reassemby Turnafork Arm Disassemby and Reassemby Turnafork Arm Service Turnafork Arm Indexing Siding Arm Bushing Repacement, Two-piece Stye Siding Arm Bushing Repacement, One-piece Stye Cyinders, Genera Procedures Cyinder Remova and Instaation Cyinder Disassemby Cyinder Inspection Cyinder Reassemby Cyinder Service Cyinders with V-seas Cyinders with U-cup Seas Restrictor Fittings, Sideshifting Camps (incuding Turnafork) Ony Restrictor Fitting Service Restrictor Fitting Adjustment Check Vave, Basic Camps, Sideshifting Camps, and Turnaforks Ony Check Vave Remova and Instaation Check Vave Service Revoving Connections, Revoving Camps Ony Revoving Connection, Cartridge-type Check Vave Service Revoving Connection Remova and Instaation Revoving Connection Service Rotator Drive Group, Revoving Camps Ony Rotator Drive Group Remova and Instaation Rotator Drive Group Disassemby and Service Rotator Drive Group Reassemby Motor Motor Remova and Instaation, Revoving Camps Ony Motor Disassemby and Reassemby Frame Assemby, Revoving Camps Ony Basepate Remova Ring Gear/Bearing Assemby Remova. _ 2-40 Frame Assemby Service Frame Reassemby STANDARD LABOR TIMES, Section Form 5185 Rev. 0 I

3 . Section 1 Introduction This manua provides the instaation instructions, periodic maintenance requirements, troubeshooting procedures, and service guides for the foowing Cascade ift truck attachments: Basic Camp for Bot-on Arms Modes C2B, C3B, C4B, C6B, and C7B Sideshifting Camp for Bot-on Arms Modes C2S, C3S, C4S, C6S, and C7S Revoving Camps for Bot-on Arms Modes C2R, C3R C4R, C6R, and C7R Turnafork Mode C4T 1.1 Truck System Requirements Pressure: Your ift truck shoud suppy sufficient hydrauic pressure to hande the heaviest oad. PRESSURE MUST NOT EXCEED 2000 PSI. Voume: Basic Camps, Sideshifting Camps, and Turnafork 5-20 gpm Revoving Camps-Required voume to obtain rated rotation speed specification: C2R, C3R-10 gpm C4R-15 gpm C6R-20 gpm C7R-20 gpm NOTE: If you have questions concerning these ratings, ca Cascade s Service Department, to-free, Specia Instructions Definitions ~WARNING A statement preceded by A WARNING is information that shoud be acted upon to prevent bodiy injury. A WARNING is aways inside a rued box. CAUTION A statement preceded by CAUTION is information that shoud be acted upon to prevent machine damage. IMPORTANT A statement preceded by IMPORTANT is information that possesses specia significance. NOTE A statement preceded by NOTE is information that is handy to know and may make your job easier. Form 5185 Rev. 0

4 Section 2 Instaation Instructions A WARNING: Rated capacity of the truck/attachment combination is a responsibiity of the origina truck manufacturer and may be ess than that shown on the attachment namepate. Consut the truck namepate. 2.1 Truck System Requirements Truck reief vave setting: 2000 psi maximum. Truck hydrauic system shoud provide the foowing rates of fow: Voume: Basic Camps, Sideshifting Camps, and Turnafork 5-20 gpm Revoving Camps-Required voume to obtain rated rotation speed specification: C2R, C3R-10 gpm.c4r-15 gpm C6R-20 gpm C7R-20 gpm NOTE: If you have questions concerning these ratings, ca Cascade s Service Department, to-free, Recommended hose and fitting size: C2B Basic Camps and C2S Sideshifting Camps: No. 6 hoses with minimum fitting orifices of.297 (9/32) inch. A others: No. 8 hoses with minimum fitting orifices of 13/32 inch. Truck carriage must conform to the Industria Truck Association (ITA) dimensiona standards as shown in the foowing chart. Mounting Dimension A (in.) Min. Max. Cass II (C2B. C3B,C4B, C2S c3s, C4S C2R, C3R, C4R, C4T) Cass III (C4B. C6B, C4S, C6S, C4R, C6R) Cass IV (C6B, C7B, C6S, C7S, C6R, C7R) Make sure the truck carriage is cean and the notches are undamaged. Form 5185 Rev

5 . Section 2 Instaation Instruct ions 2.2 Prior to Instaation 1. Insta the hydrauic hoses to the truck junction bocks using the correct Cascade Attachment Instaation Kit. The part numbers are as foows: Basic Camp Mode C2B: C Basic Camp Modes C3B, C4B, C6B and C7B: C Sideshifting Camp Mode C2S: C Sideshifting Camp Modes C3S, C4S, C6S, and C7S and Turnafork Mode C4T: C Revoving Camp Modes C2R, C3R, C4R, and C6R: C Revoving Camp Mode C7R: C OR, use hoses and fittings as shown in Figure 1, 2, 3, 4, 5, or 6. Be carefu not to pinch, twist, or otherwise damage the hoses. VIEWED FROM THE DRIVER S SEAT Check Vave / No. 6 Hose \ 90 Ebow 90 Straight Thd. Ebow Connector. To Truck - Junction IMPORTANT In order to conform to industry standard practice, the hoses shoud be connected to the truck auxiiary vaves as indicated by the foowing chart. Function, in order of ocation from Attachment operator Movement Motion of the operator s hand Figure 1. hmbing VIEWED FROM THE DRIVER S SEAT No. 8,, Diagram, Mode C2B go Ebow Straight Thd. \\ Connector Sideshift Rotate Right Left Cockwise Rearward or up Forward or Down I Rearward or Up Camp y?..-.;..-..\1--..-&: Check Vave 90 Ebow Figure 2. Pumbing Diagram, Modes C3B, C4B, CSB, and C7B CAUTION: 2. Fush the hoses as foows to prevent damage to the attachment hydrauic components. a. Connect the hoses from each junction bock together. b. Start the truck and actuate the truck contro vave(s) in both directions for about 30 seconds to carry any debris eft in the hoses to the truck hydrauic tank and fiter. Bock 2=3 Form 5185 Rev. 0

6 Section 2 Instaation Instructions 2.2 Prior to Instaation (Cont.). VIEWED FROM THE DRIVER S SEAT VIEWED FROM THE DRIVER S SEAT Straight Thd. Connector Straight Thd. Connector Straight Thd. Connector o Ebow / 90 Ebow \ Straight Thd. Connector No Ebow / To Truck Junctton Bock Check Vave Straight Thd. Connector Check Vave Figure 4. Pumbing Diagram, Modes C3S. C4S. C6S. and C7S Figure 3. Pumbing Diagram, Mode C2S NOTE: The Junction Bocks On Your Truck May Be Reversed From Those Shown I Viewed From the Driver s Seat 90 Swive Ebow Straight Thd Connector godstraight Thd Ebow xi\ I 45O Straight Thread Ebow :;- :,..... No Hose ~ Swive, :;:z;aisht Ebow -r Rotate Cockwise Counter- Cockwise Connect I I I To Truck 45 Sv vive to Truck Junction E,bow Junction 1 Bock Bock 1 Figure 5. Pumbing Diagram, Modes C3R. C4R. and C6R 45O Swive Ebow Viewed Y SOD Swive Ebow I Rotate Rotate Counter- Cockwise Cockwise Connect To Truck Junction Bock From the Driver s Seat Figure 6. Pumbing Diagram, Mode C7R Form 5185 Rev

7 Section 2 Instaation Instructions 2.3 Instaation Using a suitabe hoist and chain, position the camp as shown and remove the ower mounting hooks. Position the truck cose enough so the hoses on the junction bock(s) can be connected to the attachment. Connect the hoses to the attachment as shown in the appropriate pumbing diagram. Raise the truck carriage and engage the attachment upper mounting hooks. Center the attachment on the carriage, making sure the positioning bock is engaged in a notch on the carriage. Tit the mast back and insta the ower mounting hook. Lube-torque the capscrews as shown on the foowing chart. Attachment (a modes) Mounting Cass Torque Vaue (ubed) C2R, C3R 1 II! ft.-b. C2B, C3B, C4B, C6B. C2S. C3S I II, III I ft.-b. c4s; c% I c4r II, III ft.-b. C6R 1 I, IV! ft.-b. C6B, C6S, C7R C7B, C7S IV IV ft.-b ft.-b. Connect Hoses Making Sure it is Centered, Raise the Carriage Position Truck Cose to Camp Position Camp and Remove Lower Mounting Hooks Tit Back and insta Lower Mounting Hooks 6 Insta the arms. Lube-torque the capscrews as shown on the foowing chart. Attachment (a modes) c2, c3 c4 C6 Arm capscrew torque vaues (ubed) oo-120 ft.-b ft.-b ft.-b. Attachment 2-5 Form 5185 Rev. 0

8 Section 2 Instaation Instructions 2.4 Attachment Stop Bocks Cascade recommends that a stee bock be permanenty weded on each side of the truck carriage upper crossbar adjacent to each attachment upper mounting hook. To perform the instaation: 1 Seect square stee stock with a width about equa to the fat of the carriage upper crossbar (dimension A). 2 Cut two bocks from the stock, each about as ong as the width of the attachment upper mounting hook (dimension B). 3 Position the bocks adjacent to the upper mounting hooks. The bocks shoud not extend behind the fat of the carriage upper crossbar (dimension A). 4 Wed the bocks in pace. Make sure you protect adjacent hoses and hydrauic components from wed spatter. 2.5 Prior to Operation Attachment Upper /Mounting Hook Stee Stop Bock Upper Crossbar Check the cyinder anchor nuts to make sure they are secure. If your camp has od-stye anchor nuts, make sure the spring retainer is in pace. If you have new stye anchor nuts, make sure they are propery staked. Before picking up a oad, operate the attachment through a fu cyce to force any air from the system to the truck hydrauic tank. Check for eaks. Pick up a maximum oad and operate the camp. If the camp does not function correcty, recheck the pumbing. If the camp drops the oad, contact Cascade s Service Department, teephone (to-free), or, in Oregon, ca A WARNING: Make sure there are no peope in the vicinity of the attachment when picking up a oad. OLD-STYLE CYLINDER ANCHOR NUT ner is in Pace NEW-STYLE CYLINDER ANCHOR NUT Form 5185 Rev

9 Hour Maintenance Section 3 Periodic Maintenance 3.2 Every time the ift truck is serviced or every 100 hours of truck operation, whichever comes first, compete the foowing maintenance procedures. 0 Check the cyinder anchor nuts for ooseness. 500 Hour Maintenance IMPORTANT: After competing any service procedure, aways test each function through 5 compete cyces. First test the camp empty to beed excess air trapped in the system. Then test each function with a oad to make sure the camp operates correcty before returning it to the job After each 500 hours of ift truck operation, in addition to the 100-hour maintenance procedure, perform the foowing procedures. 0 Retorque the mounting capscrews. Use the torque specifications shown in Section 2. Rotating Camps Ony 0 Lubricate the ring gear/bearing assemby with whee bearing grease. Rotate the camp one fu turn during ubrication. 0 Remove the pug on the back of the basepate and retorque a the ring gear/bearing assemby capscrews to ft.-b. ( ft.-b. on C7R). Repace the pug. Remove the pug on the rotator drive gearcase and fi to capacity with Cascade Rotator Drive Lubricant (Cascade part number C ) or Keystone WG-1. Repace the pug Hour Maintenance After each 1000 hours of ift truck operation, in addition to the 100-hour and 500-hour maintenance procedures, perform the foowing procedure. 0 Check the arm bushings. If they are worn, marred, or deepy scratched, repaced the bushings Hour Maintenance After each 2000 hours of ift truck operation, in addition to the 100-hour, 500-hour, and 1000-hour maintenance procedures, perform the foowing procedure. III Repace a siding arm bushings..o 2-7 Form 5185 Rev. 0

10 Section 4 Toubeshooting 4.1 Genera Procedures A WARNING: Before servicing any hydrauic component, reieve pressure in the system. Open the arms 1 or 2 inches, turn the truck off, and open the truck auxiiary vaves severa times in both directions. After competing any service procedure, aways test the function through severa cyces. First test the attachment empty to beed air trapped in the system to the truck system. Then test the attachment with a oad to be sure it operates correcty before returning it to the job. Stay cear of the oad whie testing. Do not raise the oad more than 3 inches off the foor whie testing Truck System Requirements Pressure: Your ift truck shoud suppy sufficient hydrauic pressure to hande the heaviest oad. PRESSURE MUST NOT EXCEED 2000 PSI. Voume: Basic Camps, Sideshifting Camps, and Turnafork 5-20 gpm Revoving Camps-Required voume to obtain rated rotation speed specification: C2R, C3R 10 gpm C4R 15 gpm C6R 20 aom C7R 20 gpm NOTE: If you have questions concerning these ratings, ca Cascade s Service Department, to-free, Toos Required In addition to a norma seection need: of hand toos, you wi Two pressure gauges capabe of measuring pressure to 2500 psi. Two No. 6 swive nut run tees (37 JIG) suitabe for mounting gauges. Two No. 8 swive nut run tees (37 JIC) suitabe for mounting gauges. Two No. 6 JIC pugs for hose ends. Two No. 8 JIC pugs for hose ends. Two No. 6 meta caps for ports. Two No. 8 meta caps for ports. Two neede shutoff vaves, rated for 2500 psi service, minimum. (Recommended suppier for neede shutoff vaves: Marsh Instrument Co., Skokie. III.) Two stee seeves as shown by the accompanying iustration. Insta the gauges in the tees. In some tests, you wi insta the neede vave and a drain ine in conjunction with the gauge arrangement. \ Mae Connector / Pressure Gauge ive Nut n Tee Pressure Gauge Stee Seeve Neede Shutoff I MPORTANT: Make Sure The Arrow Points in This Direction. Form 5185 Rev

11 Section 4 Troubes hooting Get A The Facts Before You Begin Working On The Camp It is important that you gather a the facts regarding the probem before you begin service procedures. The best way is to tak with the operator. Ask for a compete description of the mafunction. The foowing guideines wi hep you decide where to begin your troubeshooting procedures. A. Camp Circuit Camp drops oad after it has been picked up. Camp wi not carry oad up to its rated capacity. Camp arms wi not function propery. Camp drops the oad when sideshifting or rotating. If you encounter one of these probems, refer to Paragraph 4.3. B. Rotating Circuit (revoving camps ony) Camp wi not rotate. Camp wi not rotate oads up to its rated capacity. Camp rotates in one direction ony. If you encounter one of these probems, refer to Paragraph =9

12 .. Section 4 Troubeshooting 4.2 Pumbing Hosing Diagram, Basic Camps (incuding Turnafork) f- Restrcror / \ Ftti d Cyinder ARMS CLOSING PRESSURE - RETURN - hi I K/i ARMS OPENING PRESSURE RETURN -.,,,.,,.I,x Circuit Schematic, Basic Camps (incuding Turnafork) Cyinders Truck Reief Vave Truck Auxiiary Vave Iiruc k Hydrauic Pump Form 5185 Rev. 0

13 Section 4 Troubeshooting Hosing Diagram, Sideshifting Camps ARMS CLOSING PaEssuaE.I ~.. RETURN - ARMS OPENING PRESSURE 1~.-,,-.. RETURN 7 2-I 1 Form 5185 Rev. 0

14 * 0 Section 4 Troubeshooting Hosing Diagram, Sideshifting Camps (Cont.) SIDESHIFTING (SiDESHIFT LEFT PRESSURE - RETURN - SHOWN) 1 RI Auxiiarv Juncr~on Bock 7 e Circuit Schematic, Sideshifting Camps Cyinders Sideshifting Check Vave NOTE: Junction \! Hose : -7 Ree!.A ;- Truck Camp Vave f k Hose Ree Truck Sideshift Vave ii,f P Truck Reief Vave ti Truck Hydrauic Pump Form 5185 Rev

15 Section 4Troubeshooting Hosing Diagram, Revoving Camps Note: Auxiiary Vave Ports and Hose Ree Ports may be Reversed From Those Shown. 1 c? Rotator Motor ARMS CLOSING PRESSURE RETURN - ction f Bock I Revoving Connection I ARMS OPENING PRESSURE RETURN - Junction Bock Hose Ree 2-13 Form 5185 Rev. 0

16 . * 0 Section 4 Troubeshooting Hosing Diagram, Revoving Camps (Cont.) ROTATE-(COUNTERCLOCKWISE PRESSURE.. ~~.,-ass RETURN B SHOWN) Circuit Schematic, Revoving Camps Form Rev

17 Section 4 Troubes hooting 4.3 Camp Circuit Troubeshooting There are four potentia camping force. probem areas that coud affect Insufficient hydrauic pressure from the ift truck. Externa eaks. Mafunctioning check vave. Worn or defective cyinder seas. To isoate the probem area, compete the foowing check ist in the exact sequence indicated. Genera Pressure Test 0 Rotate the camp so the arms are side-by-side (revoving camps ony) G 0 Open the camp arms and remove the bumper pate from the front of the attachment. Disconnect the cyinder rod ends from the arms. IMPORTANT: Refer to the procedures described in Section 5, Paragraph 5.2-1, Step 2. CAUTION: Rods wi drop as soon as they disengage frame. Protect the rod surface. Retract the cyinders far enough to sip the stee seeves over the cyinder rods. Extend the cyinders and reconnect the rods to the arms with the seeves in pace. It is not necessary to ock the nut or insta the keeper. Remove the suppy hose to the rod end port restrictor fitting of one of the cyinders. Insta a gauge into the open end of restrictor fitting, then reconnect the cyinder suppy hose to the gauge tee. In the case of a revoving camp, insta gauges in the rod end restrictor fittings of both cyinders. 0 Sowy retract the cyinders (arms moving together) unti the seeve contacts the cyinder end. Make sure the gauge assemby does not interfere with the cosing arms. The arms are now bocked partiay open (or cyinders partiay extended). E Pu the camp contro hande to the camp and hod for a few seconds. position 0 Return the hande to neutra. The gauge(s) shoud register within 100 psi of specified truck pressure. If it does not, check the pressure deivered by the truck. Refer to the truck service manua. Adjust and repair as necessary. TRUCK PRESSURE MUST NOT EXCEED 2000 PSI. Recheck cyinder pressure. the \ Sip On The Seeves 2-I 5 Form 5185 Rev. 0

18 Section 4 Troubeshooting Genera Pressure Test (Cont.) 0 If the truck system is OK, watch the gauge(s). If it registers a drop of more than 100 psi in one minute, check for externa eaks in the system. Refer to the accompanying diagram. Repair the eaks and recheck cyinder pressure. If there are no externa eaks, test the check vave as foows. c NON-REVOLVING CLAMPS ONLY. Remove the gauge tee from the one cyinder rod end port, but keep it connected to the hose. Remove the hose to the rod end port of the other cyinder. Cap both cyinder ports and pug the hose that does not have the gauge connected. REVOLVING CLAMPS ONLY. Remove both gauge tees from the cyinder rod end ports, but keep them connected to the hoses. Cap both open cyinder ports. 0 Connect a neede shutoff vave and drain ine to the gauge tee(s). Put the drain ine(s) in a suitabe container. C Open the neede vave(s) no more than 1/2 to 1 turn. 0 Start the truck and et it ide. Put the truck camp ever to the camp position and hod for 4 or 5 seconds to aow oi to fow to the container. 0 Whie hoding the camp vave open, cose the shutoff vave(s). Keep hoding the truck vave open unti the gauge(s) reach within 100 psi of truck reief pressure. 17 Return the truck camp vave to neutra and watch the gauge(s). If the gauge(s) does not drop more than 100 psi in one minute, one or both cyinders require service. Refer to Section 5, Paragraph 5.3. If the gauge(s) does drop more than 100 psi in one minute, the check vave is fauty and requires service (on revoving camps, if ony one gauge registers a 100 psi drop in one minute, the check vave connected to that hose ony is at faut). Refer to Section 5, Paragraph 5.6 or 5.7. III 0 After making the necessary corrections, remove the cyinder rod seeves, reconnect a hoses, and repace the bumper pate. Make sure the cyinder anchors are secure. Refer to Section 5, Paragraph Step 6 for specia instructions regarding cyinder anchor nuts. Cyce the attachment 4 or 5 times without and with a oad before returning the attachment to service. Ca Cascade s Service Department If you have carefuy and accuratey competed this check ist and you sti have not soved the probem, ca us. Our Service Department is open from 10:00 AM to 8:00 PM Eastern time. Ca (to free) In Oregon, POTENTIAL EXTERNAL LEAK POINTS -,b NON-REVOLVING \ n Cy i der I //f-c7(, Vave IMPORTANT Use of Soenoid and One Truck Contro Vave, Sideshifting and Revoving Camps Ony Neede Shutoff Some trucks use a singe auxiiary vave in conjunction with a soenoid vave to contro two functions ( camp and sideshift or camp and rotate ). To conform to industry standard practice, the system must be connected so the camp function operates when the soenoid vave is actuated (button depressed). If your unit does not operate in this manner, you may-inadvertenty drop the oad when you want tosideshift eft or rotate countercockwise. Make sure your attachment camps and opens with the soenoid actuated before returning the unit to service. Fnrm Fi!?F; RF?V f 3.iR

19 Section 4.4 4Troubeshooting Rotate Circuit Troubeshooting (revoving camps ony) \ To isoate the probem area in the rotation system, compete the foowing check ist. Probem: Camp wi not rotate or wi not rotate oads up to its rated capacity. Probabe causes: insufficient truck hydrauic pressure. Incorrect oad handing. Excessive back pressure in the truck hydrauic system. Tests: C Check the pressure deivered by the truck hydrauic system. A pressure drop of no more than 100 psi at the auxiiary vave port is OK. If the pressure is not as specified, refer to the truck service manua for adjustment or service. PRESSURE MUST NOT EXCEED 2000 PSI. 0 Make sure the operator is gripping the oad as shown in the iustration. Gripping a oad, especiay a ong one, near its end, then attempting to rotate it requires a tremendous amount of torque-often times beyond the capacity of the camp. C Insta a pressure gauge into each port of the hydrauic motor (do not use the neede vave). 0 Securey grip a oad that weighs cose to the capacity of the camp. 0 Rotate the oad and note the pressure readings on the gauges during rotation. If the ower pressure reading EXCEEDS 200 psi, you have excessive back pressure in your suppy circuit. Check for restrictions such as numerous fittings and ebows, hose sizes ess than No. 8, cogged oi fiter, etc. If the ower pressure does NOT EXCEED 200 psi, and the truck pressure is within specifications, the hydrauic motor needs repair. Refer to Section 5, Paragraph for service procedures. Here h, THIS ~ ~ ; NOTTHIS, Check -.r, For Pressure Z-17 Form 5185 Rev:0

20 Section 4 Troubeshooting Probem: Camp rotates in one direction ony. Probabe cause: The piot spoo in the junction bock that suppies the rotator motor is jammed. Soution: Repace the junction bock. Ca Cascade s Service Department If you have carefuy and accuratey competed this check ist and you sti have not soved the probem, ca us. Our Service Department is open from 10:00 AM to 8:00 PM Eastern time. Ca (to free) In Oregon, Form 5185 Rev. 0 2=18

21 Section 5 Service. 5.1 Camp Remova and Instaation 1 Open the camp arms competey. On revoving camps, make sure the attachment is rotated so the arms are positioned side-by-side. 2 Remove the ower mounting hooks. For reassemby, ube-torque the ower mounting hook capscrews as shown on the foowing chart. Q Lower Carriage and Back Truck Away Sighty 0 Disconnect Hoses Attachment (a modes) Mounting Cass Torque Vaue (ubed) I ft.-b. C6R II.IV I ft.-b C6B, C6S. C7R 1 IV C7B. C7S I IV ft.-b. I ft.-b. Lower Attachment Remove Lower onto Paet d Mounting Hooks 3 Position wooden bocks or a shipping paet under the attachment. Lower the mast carriage unti the attachment is resting on the bocks. 4 On attachments so equipped, set a 1000-pound weight on the forks to hod the attachment upright. NOTE: Attachments with oad arms other than forks don t require additiona stabiizing weight. 5 Making sure the weight on the arms is secure, continue owering the mast carriage enough to cear the upper mounting hooks. Back the truck away a few inches to gain access to the hoses to the attachment. A WARNING: Before removing any hoses, reieve pressure that might be present in the hydrauic system. With the truck off, open the truck auxiiary contro vave(s) severa times in both directions. 6 Disconnect and cap the hoses to the attachment. Tag the hoses for ease in reconnecting. 7 For reinstaation, reverse the above procedures, or consut the Instaation Instructions, Section Form 5185 Rev. 0

22 Section 5 Service 5.2 Arms Arm Remova and Instaation Arm remova is easiest to perform with the attachment mounted on the truck. Fuy extend the arms. On rotating camps, make sure the attachment is rotated so the arms are positioned side-by-side. Remove the nuts retaining the cyinder rods to the arm ugs. On od-stye retaining nuts, first remove the spring washer. IMPORTANT: A new stye retaining nut has a cone-shaped ocking washer swaged to the threads of the nut. Locking is achieved when the washer is dimped into the groove in the end of the cyinder rod. To unock the nut, insert a punch or chise into the hoe in the center of the coneshaped washer and pry up the dimpe. If you re carefu, the nut may be reused severa times. NOTE: Pressurizing the cyinders outward wi increase friction between the cyinder rod and the ug and may make oosening the nuts easier. Secure the arms with a suitabe overhead hoist and chain. A WARNING: Make sure your overhead hoist has a rated ifting capacity of at east 1000 pounds. Retract the cyinder rods unti they come out of engagement with the arm ugs. CAUTION: Rods wi drop as soon as they disengage the frame. Protect the rod surface. Pu the arms out of the camp frame. IMPORTANT: Each time the arms are removed, inspect the arm guide tubes for scoring. Minor scoring can be removed with a hone. If the guide tubes are bady damaged, the frame must be repaced. Before instaing arm carriers, make sure the guide tubes are cean and free of meta projections. For reassemby, reverse the above procedures, except for the foowing specia instructions for cyinder anchor nuts. NOTE: When tightening cyinder anchor nuts, pressurizing the cyinders outward wi increase friction between the cyinder rod and the ug and may make tightening easier. a. OLD STYLE ANCHOR NUTS. Insta the washer onto the cyinder rod, then fit the cyinder rod into the arm carrier. Insta the nut. Tighten the nut against the washer. Back the nut off unti it aigns with the sot in the cyinder rod. Insta the spring retainer. The cearance between the ug and the washer shoud be about 5/32 inch. CAUTION: Do not attempt to remove the ooseness or damage to the assemby coud resut. b. NEW-STYLE ANCHOR NUTS. 0 Make Sure OLD-STYLE CYLINDER ANCHOR NUT Insta the washer onto the cyinder rod with the counterbore-side facing outward (toward the nut), then fit the cyinder rod into the arm carrier. Restrain the washer with a wrench and torque the nut to: C ft.-b., C ft.-b., C6 and C ft.-b. Lock the washer nut by staking the cone-shaped washer with a casehardened chise. Be sure the washer is driven into the NEW-STYLE CYLINDER ANCHOR NUT 9 sot in the end of the cyinder rod. CAUTION: Aways use the hex-stye washer with the new-stye anchor nut. DO NOT use the od-stye casteated nut with the hex-stye washer. Form5185 Rev.0

23 Section 5 Service Arm Carrier/Load Arm Disassemby and Reassemby Load arms that are integra with arm carriers cannot be disassembed. Disassembe oad arms from bot-on or T-bar arm carriers according to the foowing procedures. For disassemby and reassemby procedures for Turnafork arms, refer to Paragraph Secure the oad arm with a suitabe overhead hoist and chain. 2 Remove the capscrews retaining the bot-on arm carrier or T-bars and cyinder anchor ug to the oad arm. 3 For reassemby, reverse the above procedure. Bot-on Arm Carrier Load Arm. screws I T-Bar Arm Carrier 2-21 Form 5185 Rev. 0

24 Section 5 Service Turnafork Arm Disassemby and Reassemby The arms can be disassembed with the attachment mounted on the truck and with the arm carriers instaed on the attachment frame. To disassembe an arm: Open the arms so they extend beyond the attachment frame. Remove the front cover to expose the indexing mechanism. CAUTION: To index the arm with the cover removed, fabricate and insta a bar that spans the front cover capscrew hoes that wi secure the indexing mechanism. Remove the two springs in the center of the becrank. Remove the becrank. Push the vertica crank bar aside and remove the seector pate. a Remove the snap ring that secures the actuator. Remove the actuator. To remove the fork, remove the tweve socket head capscrews retaining the circuar arm bearing. For instaation, tighten to a torque of ft.-tbs Press the bearing out of the arm manuay. Remove the detent pin, spring, and bushing. For reassemby, reverse the above procedures, except for the foowing specia instructions. The two capscrew stops shoud be adjusted so the arm stops at a true horizonta and vertica position when it is indexed. In the vertica (camp) position, the capscrew shoud stop the arm so it just engages the detent pin in the arm base. Tighten the nut to a torque of ft.-bs. Lubricate the arm bearing when reassembing. a Make sure the arm turns freey on the bearing. Lubricate the becrank fittings with SAE 90 grease. Form 5185 Rev. 0 Bearing Front Remove Capscrews b Cover For instaation Torque to ft.-bs. 2-22

25 Section 5 Service Turnafork Arm Service Inspect a components and bushings for wear. Repace bushings if the ID is scored or a concentration of wear is visibe. Repace any components with visibe wear where they contact other components. Repace the O-ring on the arm bushing each time it is removed. Inspect the detent pin, spring, bushing, and seat each time the arm bearing is removed. Repace any part if a concentration of wear is visibe Turnafork Arm Indexing Fuy cosing the arms depresses the actuators. This reeases the ocking mechanism and causes the arms to change position. If the arms get out of phase, correct the probem as foows: IMPORTANT: If the arms ever get out of phase, there may be nothing mechanicay wrong with the attachment. This condition usuay occurs when both actuators are not fuy depressed. To reposition an arm manuay: With the arms fuy cosed (actuators fuy depressed), reposition one arm by hand. To reposition an arm hydrauicay: Cose the arms hydrauicay (actuators fuy depressed). Then open the arm sowy unti you hear one cick. Immediatey cose the arms together again to bring them back in phase Siding Arm Bushing Repacement, Two-piece Stye NOTE: An attachment with two-piece bushings may be converted to the new stye, one-piece configuration by the instaation of the appropriate One-Piece Bushing Conversion Kit. Contact Cascade Customer Service for information Remove and discard the od ong and short bushings. To ease remova, spread the short bushing by inserting a screwdriver bade into the bushing sot. Simiary, insert two screwdrivers into two opposing sots in the ong bushing to disengage the bushing retaining ip. It may be necessary to drive off the ong bushing with a bock and a hammer. Insta the ong bushing. Spread the sots of the bushing with screwdrivers as during remova. If the bushing wi not go over the arm carrier bar, heat it in boiing water for 3 or 4 minutes to soften it. Make sure the bushing retaining ip engages the groove in the arm carrier bar. Insta the short bushing. Spread the bushing to ease instaation. Make sure the bushing fits into the outermost groove in the arm carrier bar. Lubricate the bushings with a graphite base grease before assembing arm carriers onto the attachment. emove the Bushings Short Bushing I Form 5185 Rev. 0

26 Section 5 Service Siding Arm Bushing Repacement, One-piece Stye 1 Remove the bushing retainer snap ring and washer from the end of the arm carrier bar. 2 Side off the od bushing. 3 Side the new bushing on and insta the washer and retaining snap ring. 4 Lubricate the bushings with a graphite base grease before assembing arm carriers onto the attachment. Remove the Snap Ring and Washer 5.3 Cyinders, Genera Procedures Cyinder Remova and Instaation REVOLVING CLAMPS ONLY: Rotate the attachment so the arms are positioned side-by-side. Extend the arms past the width of the frame. Remove the cyinder rod anchor nuts. IMPORTANT: Refer to the procedures pertaining to cyinder anchor nuts as described in Paragraph 5.2- Step 2. 4 Retract the cyinder rods unti they come out of engagement with the arm ugs. 5 CAUTION: Rods wi drop as soon as they disengage the frame. Protect the rod surface. Remove the bumper pate. Pate Capscrews hoses, refiebe pressure that might be contro vaves severa times in both Remove and tag the hoses to the cyinders. hoses and the cyinder ports. Remove the cyinder 5.2-1, Step 2). Lift the cyinders Instaation Cap the she anchor nuts (Paragraph away from the camp frame. is a reverse of remova. IMPORTANT: Refer to the procedures pertaining to anchor nuts, Paragraph 5.2-1, Step 6. Operate the attachment through severa fu cyces to force air in the system to the truck hydrauic tank. Check for eaks. Form 5185 Rev

27 Section 5 Service Cyinder Disassemby Use a pin-type spanner wrench to remove cyinder retainers. When servicing a cyinder, camp it in a soft-jawed vise. Camp the cyinder and the rod on the major diameter at the extreme end ony. Never camp the cyinder rod seaing surface. V-seas wi side off the piston easiy. To gain access to the rod seas, remove the sef-adjusting brass bushing from the retainer after the retainer has been removed. To remove a U-cup sea from a piston, put the piston in a soft-jawed vise. Pry the sea up with a bunt too such as a screwdriver, then cut the sea to remove it. Be carefu not to scratch the sea groove Cyinder Inspection Inspect the rod, piston, and retainer for nicks or burrs. If deepy gouged, repace the part. Minor nicks and burrs can be removed with an emery coth. NOTE: A minor nick is one that wi not cause a bypass of oi when the cyinder is operating.. Inspect the inside of the cyinder she and remove any minor nicks and burrs (see Note, above) with a butterfy hone. Repace the cyinder she if it is deepy gouged. On cyinders with V-seas, inspect the sef-adjusting brass bushing that fits inside the retainer. If the ID is scored, the bushing shoud be repaced Cyinder Reassemby 9 Pin Type Spanner Wrench Do Not Camp Rod on Threaded or Seaing Surfaces, Camp Ony at Extreme End of Major Diameter. Camp She Ony at Extreme Base End. Lubricate a new seas before instaing. Use a mixture of petroeum jey and hydrauic oi. Carefuy note the direction of seas. If they are instaed backwards, the seas wi not sea propery. Refer to the iustration of the cyinder you are servicing. When instaing U-cup seas onto a piston, hook one side of the sea in the groove and push it over the piston. NOTE: Poishing the chamfer ange wi aow the sea to side into the groove much easier. Aways reassembe the rod assemby by siding the retainer on first, then the piston assemby. Insta and torque the piston retaining nut before siding the rod assemby back into the she. When reassembing a cyinder, aways observe a torque vaues as shown on the appropriate iustration. the Groove 2=25 Form 5185 Rev. 0

28 . Section 5 Service 5.4 Cyinder Service Read the Genera Procedures, proceeding. Paragraph 5.3, before Cyinders with V-seas 1 2 Remove the setscrew from the threaded washer. Remove the threaded washer. 3 Pu the rod assemby out of the she. 4 Remove the nut securing the piston to the rod. 5 Remove the sef-adjusting brass bushing from the retamer to gain access to the rod sea. 6 Reassemby is a reverse of disassemby. Remove the Setscrew IQ For Reassemby. Lube-Torque to: C2 and C3 Cotton Camps ft.-b. A Others - o-12 ft.-b. I Remove the Bushing from the Retainer I I d Remove the Nut Lube-Torque to; C2 and C3 Cotton Camp ft.-b C3-160-I 70 ft.-b. C ft.-b C ft.-b. Remove the Rod Assemby Remove the Threaded Washer Cyinder assemby with V-Seas Cyinders with U-cup seas 1 Remove the retainer. 2 Pu the rod assemby out of the she. 3 Remove the nut securing the piston to the rod. 4 Reassemby is a reverse of disassemby. d Remove the Nut 1 Lube-Torque to: C ft.-b. C ft.-b. Cyinder Assemby with U-Cup Seas (C4 and C6) Form 5185 Rev

29 Section 5 Service 5.5 Restrictor Fittings, Sideshifting Camps (incuding Turnafork) Ony An adjustabe restrictor fitting is instaed in the port of a cyinder to contro the fow of hydrauic oi, and, therefore, arm speed Restrictor Fitting Service, I A WARNING: Before disassembing a restrictor fitting, reieve pressure that might be in the hydrauic system. With the truck off, open the truck auxiiary contro vaves severa times in both directions. I Restrictor Fitting Body P 1 Remove the jam nut from the setscrew. Assemby is the 2 Remove the cap from the restrictor fitting body. 0 Reverse of Disassemby 3 Unthread and remove the setscrew. 4 Repace the O-ring. 5 For assemby, reverse the above procedures. Lubricate the O-ring Restrictor Fitting Adjustment Restrictor fittings shoud be adjusted so that when one arm bottoms during opening or cosing, the other arm is no more than 2 inches from bottoming. Before adjusting, make sure the truck hydrauic system provides the specified voume output as foows: Voume: Basic Camps, Sideshifting Camps, and Turnafork 5-20 gpm Revoving Camps-Required voume to obtain rated rotation speed specification: C2R, C3R-10 gpm C4R-15 gpm C6R-20 gpm C7R-20 gpm NOTE: If you have questions concerning these ratings, ca Cascade s Service Department, to-free, To adjust: 1. Loosen the jam nut on each restrictor fitting. 2. Screw both setscrews in unti they bottom, then back off two fu turns. 3. Operate the attachment to determine which arm is moving sower. 4. Back off the setscrew on the sower arm unti arm speed is equaized. 5. Back off both setscrews equay unti desired arm speed is achieved without osing equaization. 6. Whie hoding the setscrew with a screwdriver, tighten the jam nuts. Repace the O-Ring Remove the Setscrew Remove the Cap P 2-27 Form 5185 Rev. 0

30 Section Service Check Vave, Basic Camps, Sideshifting Camps, and Turnaforks Ony The check vave assemby on basic camps has a singe piot-operated check vave. The check vave assemby on sideshifting camps and Turnaforks have three piotoperated check vaves Check Vave Remova and Instaation 1 Remove the attachment from the truck as described in Paragraph Remove, cap, and tag the cyinder suppy hoses to the check vave. 3 Remove, cap, and tag the truck hoses to the check vave. 4 Remove the check vave by removing the capscrew securing the vave to the attachment frame. 5 Instaation of the check vave is a reversa of remova. 6 Insta the attachment onto the truck as described in Section 2. \Jy J Sideshifting Camps A -. Hose Arrangement A Units except CZB Check Vave the Hoses.e Remove the Check Vave CZB Hose Arrangement Remove the Hoses Basic Camps Form 5185 Rev

31 Section 5 Service Check Vave Service gp- Pug IMPORTANT: Service the check vave in a cean work area. Remove the hose fittings from the vave body and remove the bas, guides, and springs. Cean the parts. Remove the aen-head pugs and remove the pungers and spacers. Cean the parts. Inspect a parts. Worn guides and pungers, weak or broken springs, and nicked bas shoud be repaced. Inspect the piot bores. They shoud be smooth and free of scoring. With the ba and seat ony in pace, attach a hose from the truck junction bock to each ba port and test for eakage. A WARNING: Examine the piot bores with a mirror to avoid the possibiity of getting oi in the face. Pressurize the ine and examine each piot bore for eakage. If there is no eakage, reassembe the check vave. If eakage is present, remove the hose and reseat the bas by tapping them into their seats with a brass punch. Retest. If the bas cannot be reseated, the vave must be repaced. Reassemby of the check vave is a reversa of disassemby. 6 Ba & Guide 0 Remove Vave &--- Spring Basic Camp Check Vave Components Remove Vave Components Sideshifting Camp Check Vave Form 5185 Rev. 0

32 Section 5 Service 5.7 Revoving Connections, Revoving Camps Ony The revoving connection in the vave body. has two cartridge vaves ocated Revoving Connection, Cartridge-type Check Vave Service Back-Up Ring Back-Up Ring The foowing procedures can be performed with the attachment on the truck. 1 Remove the cyinders as described in Paragraph Remove the four suppy hoses and fittings from the front of the revoving connection vave body. Remove the two hex-head cartridge vaves on the front of the revoving connection. Thoroughy cean the parts. O-Ring Remove Hoses and Fittings Shaft 4 Inspect the cartridge vave assembies defective externa O-rings. for cut or NOTE: Interna cartridge vave components serviceabe. are not 5 Repace O-rings and backup rings as required. CAUTION: Backup rings must be wound as shown to avoid sea damage during cartridge instaation. O-rings must be instaed on the pressure side of the groove. If eakage is visibe between the shaft and vave body, the shaft seas must be repaced. To repace shaft seas, the revoving connection must be removed from the attachment. Refer to the procedures in Paragraphs and Instaation of the cartridge vaves is a reversa of remova. Before instaing each cartridge, ubricate the O-rings. 0 Insta Cartridge Vaves after Lubricating Seas Form 5185 Rev

33 Section 5 Service Revoving Connection Remova and Instaation To service the check vaves on ba-and-punger-type revoving connections or to service the revoving connection shaft, the revoving connection must be removed from the attachment. Remove the attachment from the truck as described in Paragraph 5.1. Remove the cyinders as described in Paragraph Remove, cap, and tag the cyinder suppy hoses from the revoving connection vave body. Remove, cap, and tag the truck hoses to the revoving connection shaft, extending out the back of the attachment. Remove the shaft keeper bar. Pu the revoving connection out of the attachment. Instaation of the revoving connection is a reversa of remova. CAUTION: ALL UNITS EXCEPT C7R. The shaft ocating hoe marked X must be engaged by the horizonta keeper bar. Insta the attachment onto the truck as described in Section 2. - Remove the Hoses Revoving Shaft Remove Shaft KeeDer Connection 0 See CAUTION Step 7 \ Keeper Bar 2-31 Form 5185 Rev. 0

34 Section 5 Service Revoving Connection Service emove and Repace -Rings and Back-Up Rings 0 IMPORTANT: Service the revoving connection in a cean work area Remove the snap ring(s) from the revoving tion shaft. Remove the shaft from the body. connec- CAUTION: Remove any paint or burrs from the shaft end and snap ring groove(s) before puing the shaft out of the vave body to prevent damage to the vave. Cean the parts and inspect the shaft bore for scoring. If the bore is scored, the vave body must be repaced. Note the position of the O-rings and backup rings, then remove them from the vave shaft. Be carefu not to scratch the grooves. Check the shaft grooves for rough edges or scratches. Remove minor imperfections with fine emery coth. If the scratches cannot be removed, repace the shaft. NOTE: A minor imperfection is one that wi not cause a bypass of oi when the revoving connection is operating. Service cartridge-type check vaves as described in Paragraph To service ba-and-punger-type check vaves, remove the pugs or hose fittings securing the ba checks and the pungers. Remove the bas, springs, guides, and pungers. Thoroughy cean the parts. Inspect the vave seats for scoring or eongation. The vave seats can be reseated by tapping a ba into its seat with a brass punch. If the seat cannot be reseated, the vave must be repaced. Inspect the bas for nicks and scratches. Inspect the piot bores. They shoud be smooth and free of scoring. If you cannot smooth minor irreguarities with an emery coth, repace the vave. With the ba and seat ony in pace, attach a hose from the truck junction bock to each ba port to test for eakage. A WARNING: Examine the piot bores with a mirror to avoid the possibiity of getting oi in the face. Pressurize the ine and examine each piot bore for eakage. If there is no eakage, reassembe the check vaves. If eakage is present, remove the hose and reseat the bas by tapping them into their seats with a brass punch. Retest. If the bas cannot be reseated, the vave must be repaced. Insta new O-rings and backup rings on the revoving connection shaft. Be carefu not to distort the seas. Reassemby of the revoving connection is a reversa of disassemby. Lubricate the shaft O-rings to ease reassemby. Rotate the shaft into the body to prevent roing the O-ring seas. Be carefu not to damage the vave bore. NOTE: Ba-and-punger-type revoving connection vave bodies and shafts are not avaiabe as repacement parts. They must be repaced by cartridge-type revoving connections, which are interchangeabe with ba-and-punger types. Inspect the Seats Revoving Connection Remove and Repace O-Rings and Back-Up Rings o@ Remove the Shaft Back-Up Ring \?-Ring Vave Body Service the Check Vaves. See Paragraph 5.7- Inspect the Bore a C7R Revoving Connection Remove 0 Components Remove 2n the the Shaft Grooves Cartridge-type Revoving Connection Remove and -Repace the O-Rings and Back-Up Rings I 0 Remove Components P Inspect the Seats Form 5185 Rev

35 Section Service Rotator Drive Group, Revoving Camps Ony Your attachment may be equipped with either a cushioned rotator drive group or an uncushioned unit. Cushioning is achieved by the instaation of cone-shaped spring washers on both sides of the worm, powered by the rotator motor. The worm gear is in mesh with the rotator ring gear. Therefore, shock oads appied to the attachment arms are transferred to the worm through the worm gear and are absorbed by the spring washers. 1 A revoving camps have a singe drive group except the C7R, which has a dua drive unit. Specia procedures for C7R modes are noted in the foowing. Rotator Drive Group Remova and Instaation Remove the attachment in Paragraph 5.1. from the truck as described 2 C7R Modes ony. Remove the four capscrews securing the two haves of the cover over the dua drive couping and remove both cover haves. Then remove the chain around the couping sprockets. 3 Remove the rotator gear drive case retaining capscrews and remove the gearcase from the attachment basepate. A WARNING: With the gear case(s) removed, the basepate is free to rotate. Keep cear of the basepate to avoid being pinched. 4 C7R Modes ony. Remove the couping sprockets from the worm shaft of each drive group. 5 Service the rotator drive group as described in Paragraphs and Reinstaation of the rotator drive group is a reverse of remova, except the C7R. Perform the foowing Steps 7 through 16 to synchronize the C7R dua drive group. 7 Insta the circuar sea (ocated in the couping cover) over one sprocket hub. The ip of the sea shoud face the sprocket teeth. Leave the fet dust sea in pace in the couping cover. 8 Insta the couping sprockets on the worm shaft of each drive group. Make sure the keys are in pace. Don t tighten the setscrews in the sprocket hubs yet. 9 Insta both drive groups onto the basepate. Remove Capscrews 2-33 Form 5185 Rev. 0

36 I Section 5 Service Rotator Drive Group Remova and Instaation (Cont.) 10 To synchronize the worm shafts, rotate each sprocket countercockwise by hand unti you fee resistance. Using the uppermost aen-head capscrew on the shaft end cap as a reference, mark one tooth of the sprocket. Then turn the sprocket cockwise, counting the teeth as they pass the aen-head capscrew. Stop turning when you fee resistance. Now rotate the sprocket back countercockwise haf the number of teeth counted. The sprockets are now positioned hafway between where you fet resistance. Pi Insta Sprockets m Insta the chain around the sprockets. If one sprocket does not aign with the chain, rotate it no more than 1/2-toothwidth unti it does. Center the sprockets within 1/8 inch between the drive unit end housings. Tighten the setscrews on both sprocket hubs. Coat the chain with Richfied No. 2MP grease or equivaent. Position the sea on the sprocket so that it aigns with the grooves in the cover. Insta the cover over the sprockets, making sure the seas are in pace. Synchronize Check for Cearance on Truck CAUTION: The stee pin on one cover haf must aign with the hoe in the other haf before you tighten the screws After the attachment is instaed on the truck, power the rotator to check for cearance between the couping and the basepate. insta Drive Groups Insta the attachment onto the truck as described in Section 2. Form 5185 Rev

37 Section 5 Service Rotator Drive Group Disassemby and Service 1 Drain the ubricant from the gearcase. Lay the gearcase (pinion down) on 4 X 4 s paced on either side of the pinion. 2 Remove the rotator motor as described in Paragraph Motor service procedures are described in Paragraph Remove the capscrews retaining the gearcase cover. Remove the capscrew from the center of the cover and repace it with a 3/8-inch-16 UNC capscrew 2 inches ong. Turn the capscrew cockwise whie ighty tapping the side of the cover with a pastichead hammer to oosen it. Remove the end cap and bearing. Remove the worm and spring washers (if equipped). Remove the snap ring from the pinion shaft. Using a gear puer, remove the worm gear from the pinion shaft. Remove the Woodruff key from the pinion shaft. Press the pinion out of the gearcase. Press the pinion bearing out of the gearcase. Cean and inspect the components. Repace any item that is worn or gaed. Remove any burrs with an emery coth or sma hand grinder. Rem&e Screw and Repace with a 3/8-16 UNC x 2 Capscrew. Loosen the Cover by Turning Capscrew Cockwise whie Lighty Tapping the Side of the Cover. Press Out of Pinion Gearcase q - Remove Worm Press Sea and Bearing out of Gearcase Use Gear Puer to Remove Bearing Gearcase / Gearcase Boss Remove Snap Ring d 1 CAUTION: Some units wi have this stye reief fitting in the end cap. These units may have damaged ba thrust bearings due to ow rotator fuid. Cascade has a drive box ube kit avaiabe which provides new ba thrust bearings and a new pressure reief fitting. See Technica Buetin 114 for compete ordering instructions. J 2=35 Form 5185 Rev. 0