INSTALLATION MANUAL INCLUDING SERVICE PART INFORMATION FOR Mud Hog System III Rear Wheel Drive FOR MF9690, MF9790, CAT660 & CAT670 COMBINES Mud Hog Model Number: MF9790 TUTHILL Drive Systems Brookston Indiana USA Revised 8/2010 P.N. D704715
General Information CATALOGS This parts catalog is provided to aid in the identification of Mud Hog components. It contains an illustration, part number, required quantity, and a description of each part included in the kit. Catalogs may contain information for several different machines which use similar Mud Hog kits. The appropriate machine model and Mud Hog base model number should be selected to assure proper part identification. Each Mud Hog conversion package contains all or some of the following kits or subassemblies: A - HYDRAULIC ADAPTER KIT(S) B - HYDRAULIC HOSE KIT C - EQUA-TRAC II VALVE BASE ASSEMBLY D - WHEEL DRIVE BASE ASSEMBLY - RIGHT HAND & LEFT HAND E - TIE ROD EXTENSION SUBASSEMBLY F - MOUNTING KIT G - WHEEL AND TIRE KITS We reserve the right to make changes and improvements in design and specifications without notice and without obligation to provide or substitute new design modifications for those Mud Hog systems or components already in service. REPLACEMENT PART ORDERING AND RETURNED PARTS INFORMATION Replacement part orders should include the complete Mud Hog part number and description, base model number of Mud Hog kit, Mud Hog Serial Number (located on the wheel motor mounting frame or on the axle), machine model number, method of shipment, and shipping address information. Parts returned for warranty determination should be accompanied by a Warranty Claim Form with and RGA (Returned Goods Authorization) number. Before returning parts, contact the Tuthill Drive Systems Customer Service Department to obtain an RGA number. Any material returned to Tuthill Drive Systems without an RGA number prominently displayed on the packaging and/or the returned parts, will NOT be processed and will be returned freight collect to the dealer. The warranty Claim Form is included in the literature package (including a Parts Catalog and Installation/Operation Manual) sent with the Mud Hog kit. If missing, or if additional forms are needed, contact the Tuthill Drive Systems Customer Service Department. NOTE: Mud Hog and Equa-Trac are registered trademarks of Tuthill Drive Systems. B
Instructions and Specifications INTRODUCTION This manual provides instructions for installing the Mud Hog Drive System on hydrostatic machines. Various machine options such as rear axle width and front tire size affect Mud Hog adaptation. These differences are specifically referred to in these instructions. Always follow the instructions which refer to the exact option configuration on the machine being converted. A complete pictorial breakdown of all the individual parts in the Mud Hog Drive System can be found in the Mud Hog Parts Catalog. Refer to this catalog for proper identification of parts required for service. GENERAL The terms right and left in these instructions are the same as the operators right and left hand when positioned in the operator s seat facing forward. IMPORTANT: Cleanliness is essential when installing or servicing hydraulic components. When making hydraulic connections, areas surrounding the connection should be steam cleaned or washed with solvent so that contamination will not enter the system. Always keep hoses and connectors and ports suitably capped or covered to keep contamination out of the system. CAUTION: Make sure that system pressure is relieved before disconnecting any lines or connections. Pressurized fluid escaping from the system can cause serious personal injury. TORQUE SPECIFICATIONS RECOMMENDED FOR USE WITH Mud Hog FASTENERS Recheck all bolt & nut torque after 1 hour s use and again after first day of use. Periodically check tightness every 100 hours of use thereafter. Note: bolts that require Loctite should not be re-tightened once Loctite has had time to cure. Note: When using original equipment fasteners, adhere to manufacturers recommended specifications. GRADE 8 (GRADE 10.9 METRIC) BOLTS AND GRADE C LOCKNUTS SIZE BOLT TORQUE[1] LOCKNUT TORQUE[2] (S.A.E.) (ft.lbs.) (ft.lbs.) 1/4-20 10-13 7-10 5/16-18 18-25 15-18 3/8 16 35-45 30-35 7/16-14 55-70 45-55 1/2-13 90-110 60-80 9/16-12 120-150 90-110 5/8 11 180-200 150-170 3/4-10 300-350 250-280 7/8 9 400-450 350-380 M10-1.5 35-45 30-35 M16-2.0 180-200 150-170 M20-2.5 400-450 350-380 HYDRAULIC FITTINGS, HOSE ENDS, TUBE NUTS DASH SIZE THREAD SIZE TORQUE[3] (S.A.E.) (S.A.E.) (ft.lbs.) -4 7/16-20 9-12 -6 9/16-16 21-24 -8 3/4-16 35-40 -10 7/8-14 55-60 -12 1 1/16-12 77-82 -16 1 5/16-12 110-120 [1] Torque to be applied to Grade 8 bolts. [2] Torque to be applied to Grade C locknuts. [3] Torque to be applied to S.A.E. straight thread O-Ring Boss (ORB) fittings/locknuts and 37 degree flared type (J.I.C.) fittings/hose ends and tube nuts. NOTE: Mud Hog and Equa-Trac are registered trademarks of Tuthill Drive Systems. B
! Safety Procedures 1) READ THESE PROCEDURES COMPLETELY. Make sure you fully understand all controls BEFORE operating the system. 2) The safety information given does not replace safety codes, insurance needs, or federal, state, and local laws. 3) Standard safety procedures should be observed and practiced when operating or servicing the Mud Hog system. CAUTION should be practiced at all times. 4) All components MUST be securely and correctly mounted and connected BEFORE operating the system. 5) In the event of any malfunction in the system, the Mud Hog should be shut OFF immediately and not restarted until the machine is correctly serviced. 6) When raising the machine, make sure that a dependable left device is used to adequate capacity. Use suitable jack stands to support machine. Apply PARK or EMERGENCY BRAKE and block the front wheels to prevent the machine from rolling. 7) DANGER Escaping fluid under pressure can have sufficient force to penetrate the skin, causing serious personal injury. Fluid escaping from a small hole can be almost invisible. Use a piece of cardboard or wood rather than your hands, to search for suspected leaks. 8) DO NOT extend the axles beyond the distance stated in the instructions. 9) DO NOT alter axles in ANY manner alterations may reduce strength resulting in possible damage or personal injury. 10) DO NOT alter any component of the Mud Hog system. Unauthorized modification may result in possible damage or personal injury. 11) DANGER Failure to follow proper procedures when mounting a tire on a wheel or rim can produce an explosion which may result in serious bodily injury. DO NOT attempt to mount a tire unless you have the proper equipment and experience to perform the job safely. 12) WARNING Decals MUST be obeyed completely to prevent possible damage or injury. If decals are destroyed, lost damaged or cannot be read, replace immediately. 13) WARNING Any damaged hi-pressure hose should be replaced with a comparable 4-wire braid hose (DO NOT use a 2 or 3-wire braid hose). A
REAR WHEEL ASSIST The purpose of the Rear Wheel Assist Axle is to provide power to the steering wheels for the purpose of increasing total tractive effort and to improve steering in extreme ground conditions. OPERATING PRINCIPLE The Rear Wheel Assist Axle is equipped with fixed displacement motors. When the Rear Wheel Assist is engaged, the amount of wheel torque obtained is strictly a function of hydrostatic pressure. The higher your gear selection, the higher your hydrostatic pressure will be. You will get a higher percentage of Rear Wheel Assist in the higher gear ranges. It is very important to maintain traction with your front wheels. The pressure to develop wheel torque and the flow to synchronize the speed of the rear wheels with the front wheels is obtained from the main hydrostatic transmission. If a front wheel loses traction (spins out), the hydrostatic pressure drops and the amount of power assist from the Rear Wheel Assist is reduced. Shifting to the next higher gear ratio may then be helpful to reduce the amount of torque on the front wheels, or lightly touching the brakes to stop front wheel spin-out. It is recommended that you use your Rear Wheel Assist at all times when working in the field. You gain several advantages, including: You will be operating at lower system pressure, thereby tending to extend the life of your hydrostatic transmission and gear train. Running at lower system pressure will normally lower hydrostatic oil temperature. OPERATION There is a switch located on the control panel at the top of the console to turn the RWA on and off. The system can be engaged, on the Go. When the switch is moved to the On position. The combine will slow and the hydrostatic control lever must be moved forward to maintain the same ground speed. With the RWA switch in the On position, the combine maximum speed will be about half of the speed with the switch in the Off position, since the rear wheels take some of the flow from the hydrostatic transmission. This has the effect of a 2-speed device in each gear with more reduction, therefore, less speed and more tractive effort when the RWA is on. When the switch is moved to the Off position, the combine will accelerate. The system can be engaged or disengaged on the Go. However it will extend the life of your hydrostatic system to do so at lower pressures and speeds. WARNING: The RWA should not be engaged while traveling at high road speeds since the sudden slow down could cause loss of control. PREPARE COMBINE Park combine. Apply parking brake. Disconnect battery terminals, ground cable first. Remove oil, dirt, and crop material form the area where the work is to be done. Lower feeder housing fully to the ground. Drain the hydraulic reservoir. Remove ball joint from steering bracket REMOVAL OF ORIGINAL COMPONENTS Using a suitable lift device, jack or hoist, raise rear of machine so that rear tires are several inches off the ground. Place jack stands securely under the machine s rear center section. Remove rear tires. Remove tie rod tapered ball joints from steering bracket on nonpowered rear axle assembly. NOTE: existing steering cylinder and tie rods will be used. Remove all bolts connecting axle extensions, cylinder mount bracket and center section. NOTE: steering cylinder and mount bracket will drop if not secured. Remove axle extensions from center section.
INSTALLATION OF AXLE EXTENSIONS & CYLINDER BRACKET Insert supplied Stub Axle Extensions into center section. The powered rear axle is capable of the following tread widths: 120, 126, 132, 138, and 144. NOTE: Large 1.5 inch diameter holes must be on the front side of the center section if powered axle is to be operated at 138 or 144 tread widths. If these widths are to be used and the 1.5 holes are on the rear side of the center section, then the center section must be removed, turned around and re-installed onto rear axle pivot. See manufacturer s manual for removal and installation instructions for center section. To achieve 120 tread width, one hole should be exposed outside of the center section on each end of the axle. To achieve 126 tread width, two holes should be exposed outside of the center section on each end of the axle. To achieve 132 tread width, three holes should be exposed outside of the center section on each end of the axle. To achieve 138 tread width, four holes should be exposed outside of the center section on each end of the axle. To achieve 144 tread width, five holes should be exposed outside of the center section on each end of the axle. Slide axle extensions to tread width desired. NOTE: Rear axle should be installed to keep the rear tire centerline as close as possible to the front tire centerline. 120 tread width shown in picture with one hole exposed. Insert original ¾-10 x 7 bolts in the outer four holes on each end of the axle. Install original hardened spacers and nuts on the front side of the axle for each bolt. Insert original ¾-10 x 7 ½ bolts in the three inner holes on each end of the axle. Install the original steering cylinder and cylinder mount bracket onto the front side of the axle on these six inner bolts and install original nuts onto the bolts. Torque all ¾ bolts to 290-310 ft.lbs. 703484-01 2 Stub Axle Weldment
INSTALLATION OF WHEEL DRIVES Install adapter endplate onto each wheel drive to achieve specified height for your machine. Two supplied dowel pins per wheel drive must be used to secure the connection. Use supplied M20-2.5 x 80mm bolts and hard washers to secure adapter endplate to each wheel drive. Apply permanent Loc-Tite #271 to bolts and torque to 400-450 ft.lbs. 9690 and 660 installation height 9790 and 670 installation height Install wheel drives onto axle extensions. Two supplied dowel pins per wheel drive must be used to secure the connection. Use supplied M20-2.5 x 80mm bolts and hard washers to secure wheel drive to each axle extension. Apply permanent Loc-Tite #271 to bolts and torque to 400-450 ft.lbs. 103003 16 Hard Washer 3/4 105592 8 Dowel Pin, M20 X 26 238 16 Hex Head Bolt M20-2.5x80 Gr.10.9 703488-01 2 Endplate 704588-01 2 Swivel Wheel Drive Assy 1250cc Wheel Drive service part breakdown is shown at end of manual.
INSTALLATION OF STEERING COMPONENTS Install the steering brackets onto the front side of each wheel drive using supplied M20-2.5 x 40mm bolts and hard washers. Apply permanent Loc-Tite #271 onto bolts and torque to 300-350 ft.lbs. 194 8 Hex Head Bolt M20-2.5 X 40 GR.10.9 103003 8 Hard Washer 3/4 703495-01 1 Steering Bracket Weldment LH 703495-02 1 Steering Bracket Weldment RH Steering Brackets, bolts and washers Steering stop bolts, washers and jam nuts Assemble six 1 outer diameter flat washers onto each of two 5/8-11 x 2 bolts. Assemble a jam nut onto each bolt and tighten jam nut against washers and bolt head. Assemble each steering stop bolt assembly into tapped hole on end of steering bracket. Torque to 100-120 ft.lbs. The stop bolt should contact the wheel drive c-frame when the motor is steered inward. 100276-P1 2 Jam Nut 5/8-11 GR.5 101671-P1 12 Hard Washer 5/8 8223513 2 Hex Head Bolt 5/8-11 X 2, GR.8 Install each ball joint on the end of each tie rod into the taper on the steering bracket of each wheel drive. Some adjustment of the tie rod assembly may need to be made to assemble into the tapers while keeping the wheel drive in a straight-ahead position. If adjustment is needed, attempt to maintain the same amount of exposed threads outside the tie rod on both ends of each tie rod and the same amount on both tie rods. Torque the slotted hex nut of each ball joint to 80-100 ft.lbs. Insert cotter pin and bend to secure. If slots do not line up with hole then tighten to next slot. NOTE: Do not tighten jam nuts on tie rod yet. This will be done when toein is set after wheels are installed at the end of the installation.
INSTALLATION OF EQUA-TRAC II VALVE Install valve bracket using supplied 3/8-16 x 1 bolts and lock nuts. Torque to 20-28 ft.lbs. 702605-01 4 Lock Flange Nut 3/8-16 GR.8 100263-P1 4 Hex Head Bolt 3/8-16 X 1, GR.8 703498-01 1 Valve Bracket Weldment Install supplied long and short 12 ORB x 12 ORS elbows into Equa-Trac II valve assembly. Assemble with elbows pointing to side as shown below. Torque to 125-135 ft.lbs.
Install Equa-Trac II valve assembly onto valve bracket using supplied 3/8-16 x 1 ½ bolts and lock washers. Torque to 20-28 ft.lbs. 100270-P1 2 Hex Head Bolt 3/8-16 X 1 1/2, GR.8 200249 1 Elbow 12 ORB/12 ORS 90 200250 1 Elbow 12 ORB/12 ORS 90 Long 630176 1 Equa-Trac II Valve Assembly 8120382 2 Lock Washer 3/8 Valve assembly service part breakdown is shown at end of manual.
INSTALLATION OF HOSES FROM MOTORS TO EQUA-TRAC II Install hose guides onto each wheel drive using supplied M10-1.5 x 25mm socket head cap screws. Torque to 50-55 ft.lbs. 195 4 Socket Head Cap Screw M10-1.5 X 25mm GR.12.9 501178 1 Hose Guide RH 501179 1 Hose Guide LH Install hoses as shown below. For/Rev pressure hoses are 4-wire braid and 69 long. LH drain hose is 82 long. RH drain hose is 71 long. Slide two of the For/Rev hoses and one of the drain hoses thru each of the supplied pieces of cordura sleeving. Connect straight ends of forward and reverse hoses and 06 end of drain hose to wheel drives. Connect 45 ends of forward and reverse hoses and 08 end of drain hose to valve. Route hoses forward of axle and clamp to frame using supplied square clamps, 3/8-16 x 1 and 3/8-16 x 1 ¼ bolts, lock washers and lock nuts. Torque to 20-28 ft.lbs. Torque 08 hose connections to 37-42 ft.lbs. Torque 06 hose connections to 18-21 ft.lbs. 100068-P1 4 Lock Nut 3/8-16 GR.8 100263-P1 2 Hex Head Bolt 3/8-16 X 1, GR.8 100581-P1 2 Hex Head Bolt 3/8-16 X 1 1/4, GR.8 104659 4 Hose Clamp 8120382 4 Lock Washer 3/8 103379-0600 2 Cordura Sleeve, 60" 32215-0710 1 Hose Assembly, Drain, RH Motor-ETII 32215-0820 1 Hose Assembly, Drain, LH Motor-ETII 32416-0690 4 Hose Assembly, For/Rev, Motor-ETII
LH wheel drive shown below Drain (middle) Forward pressure (rear) Reverse pressure (front) RH wheel drive shown below Drain (middle) Forward pressure (rear) Reverse pressure (front)
Equa-Trac II Valve shown below Reverse pressure (top) Forward pressure (bottom) Drain Clamp locations shown below 1 ¼ bolt 1 bolt
INSTALLATION OF HOSES FROM TRANSMISSION TO VALVE The hydrostatic oil may be drained at this time. Install supplied 12 ORB x 12 ORS 90 fittings into the manifold adapter blocks. Do NOT tighten at this time. 9690 and 660 9790 and 670
Remove the flange connections on the hydrostatic pump located behind the engine. Install the manifold adapter blocks between the pump and the flange connections with eight 7/16 x 4" bolts. Connect the 45 end of both of the 140" long hoses to the elbows in the manifold blocks. The front hose (on 9690 or 660) connects to the long elbow on the Equa-Trac II valve. The top hose (on 9790 or 670) connects to the long elbow on the Equa-Trac II valve. This is the forward flow line. The other hose connects to the short elbow on the Equa-Trac II valve. Route the hoses down the side of the combine as shown below and make connections at both ends. Do NOT tighten at this time. 104547 2 Adapter Manifold Block 200249 2 Elbow 12 ORB/12 ORS 90 30146-1400 2 Hose Assembly, For/Rev, Pump-ET II 8454952 8 Hex Head Bolt 7/16-14 X 4, GR.8 Use supplied brackets, clamps, bolts and nuts to secure the hoses. Install hose clamp brackets to left side of the combine using the supplied 5/16 x 1" bolts and locknuts. Secure the transmission hoses to brackets using three cover plates, double hose clamps 5/16 x 3-1/4" bolts and locknuts. Torque the bolts to 18-25 ft.lbs. Torque the hose ends to 77-82 ft.lbs. 100068-P1 3 Lock Nut 3/8-16 GR.8 100263-P1 3 Hex Head Bolt 3/8-16 X 1, GR.8 101335-P1 3 Hex Head Bolt 5/16-18 X 3 1/4, GR.8 101702-P1 3 Hose Clamp 101754-P1 3 Clamp Plate 104548 2 Hose Clamp Bracket 106206 1 Hose Clamp Bracket 89422275 3 Lock Nut 5/16-18 GR.5 9690 and 660 clamp locations
9790 and 670 high pressure hoses drain hose (RH side) 9690 and 660 high pressure hoses drain hose (RH side)
9790 and 670 clamp locations
INSTALLATION OF DRAIN HOSE FROM RESERVOIR TO VALVE Route supplied 149 drain hose on RH side of machine as shown in above figures and below pictures. Torque to 37-42 ft.lbs. Use supplied tie straps to secure hose to frame. 100125-P1 10 Tie Strap 32516-1490 1 Hose Assembly, Drain, Tank-ETII Connect 45 end of drain hose here
Connect straight end of drain hose here SETTING TOE-IN Install the new tire and wheel assemblies and torque lug nuts to 442 ft.lbs. 103864 20 Lug Nut M20 With rear of combine on blocks and steering wheels straight ahead, check steering wheel toe-in by placing a mark at the center of tread at the rear of each tire at the same distance from the ground as the center of the wheel hub. Measure the distance, X, between these two marks. Rotate tires by hand until the two marks are at the same height from the ground at the front of the tires and measure the distance, Y, between the two marks. Dimension, X, minus dimension, Y, should be 1/4-3/8", when measured at tire outside diameter. To adjust toe-in, loosen jam nuts on steering tie rods and revolve tie rod to make rod length longer or shorter as required to obtain correct toe-in. Attempt to maintain the same amount of exposed threads outside the tie rod on both ends of each tie rod and the same amount on both tie rods. Tighten jam nuts on steering tie rod securely. Torque to 110-130 ft.lbs. Remove blocks from under combine.
ELECTRICAL INSTALLATION In cab, on right console, remove a blank beside feed reversing switch. Remove a connection from bottom of blank and fully install the supplied rocker switch. Slide switch into its position. For older models, connect supplied 147" wire to green wire from combine wiring harness on left side. On combine model 9690 or 660 route wire with and tie to pump drive lube line and then to high pressure hoses. On combine model 9790 or 670, route wire with and tie to high pressure lines. Connect other end of wire to Equa-Trac II solenoid valve. For 2009 and later model year 9795 machines, use provided 48 wire and connect to combine wiring harness on left side that has a 2-way connector with a light-green wire labeled 446-415. There should be a mating blank connector installed already. Remove blank connector and insert wire terminal from supplied harness into cavity A. This should connect to the green wire, not the black ground wire when re-installing the connector to the harness on the machine. Connect ring terminal to Equa-Trac II valve. 100125-P1 10 Tie Strap 450260 709822-01 1 1 Wire Harness - 147" Wire Harness 48 704417-01 1 Rocker Switch PRE-START PROCEDURES Check that all bolts, nuts and hydraulic connections are torqued to specification. Check that all hoses and wires are properly routed, free and clear of moving parts and suitably secured. Check wiring. Turn ignition "ON". Do NOT start engine. Operate rear axle rocker switch "ON" and "OFF". Listen for a soft clicking sound at the valve solenoid to insure proper wiring function. Add hydraulic transmission fluid, as required, to fill hydrostatic reservoir. Follow combine's specifications and recommendations concerning hydrostatic fluid and the servicing of filters. SEE START-UP PROCEDURE AT END OF TROUBLESHOOTING MANUAL.
SERVICE PART BREAKDOWNS FROM ASSEMBLIES 704588-01 Swivel Wheel Drive Assy 1250cc Service Part Breakdown 200041-P1 2 Adapter, 12 ORB-M X 08 JIC-M 208063-P1 1 Adapter, 08 ORB-M X 06 JIC-M 705022-01 1 Wheel Motor 1250cc 701705-01 1 C-Frame, Machined Wheel Motor service part breakdown is shown at end of manual. 200041-P1 208063-P1 701705-01 705022-01
VALVE BASE ASSEMBLY (SERVICE PARTS ONLY) Item QtyPer Part Number Description 1 1 208149-P1 90 ELBOW (08 JIC-FS x 08 JIC-M) 2 2 208032-P1 SWIVEL RUN TEE (08 JIC-FS x 08 JIC-M x 08 JIC-M) 3 1 200083-P1 ADAPTER (06 ORB-M x 08 JIC-M) 4 4 200041-P1 ADAPTER (12 ORB-M x 08 JIC-M) 5 4 200163 HEX SOCKET PLUG (1/4 ORB-M) 6 2 101679-M1 ADAPTER (12 ORB-M x 04 ORB-F) 7 1 103715 SOLENOID CARTRIDGE VALVE 8 1 103924 SOLENOID COIL 9 1 204041-P1 ADAPTER (04 ORB-M x 04 JIC-M) 10 1 103709 TUBE ASSEMBLY, PILOT PRESSURE 11 1 200225 TEE (04 ORB-M x 04 JIC-M x 04 JIC-M) 12 1 200110-P1 CAP (04 JIC-F) NI 1 150346 SEAL KIT - ET-II (ORB O-RINGS) NI = NOT ILLUSTRATED
705022-01 (1250cc w/swivel) WHEEL MOTOR SERVICE PARTS ITEM # QTY. PART# DESCRIPTION 010 1 150331 Cylinder Block Assembly 012 10 150329 Piston Kit 015 1 150330 Piston Retainer Kit 025 1 103919 Cam Ring plus O-Rings 027 2 103984 O-Ring - Cam Ring 047 1 103920 Distributor Valve 048 1 150268 Distributor Seal Kit 052 8 103922 Spring 061 1 105801 Cover Plate 066 1 105802 Snap Ring 067 1 105800 O-Ring 071 1 702883-01 Bearing Support 072 1 105790 Shaft Seal (Inner) 073 1 104332 Bearing (Outer) 074 1 105796 Bearing (Inner) 075 1 150357 Shim Pack 076 2 105799 Split Retainer Ring 077 1 105797 Snap Ring 078 1 105786 Deflector & Grease Seal 079 1 105798 Bearing Spacer 080 1 105795 Spacer 081 1 105793 Back Housing 082 1 105791 Shim 083 14 212 Socket Head Cap Screw M12x75 084 4 102393-P1 Grease Zerk 090 1 705023-01 Shaft, Wheel Hub 091 10 103908 Stud - M20 098 2 702804-01 Safety Pin 402 1 106270 Pin (Top) 403 1 700527-01 Pin (Bottom) 404 9 195 Socket Head Cap Screw M10x25 408 2 105803 Bushing 409 2 105805 Thrust Washer 410 2 701004-01 Seal Cover, Protector 411 8 701973-01 Socket Head Cap Screw M6x35 412 1 703740-01 Outer Pipe Assembly with Seals 413 1 703741-01 Inner Pipe Assembly with Seals 414 1 105812 Seal (Top Pin) 417 2 701003-01 Environmental Seal 418 2 105683 O-Ring, Outer Pipe 419 2 105910 Back-up Ring Outer Pipe 420 2 105912 O-Ring, Inner Pipe 421 2 105911 Back-up Ring Inner Pipe NI 10 103864 Lug Nut, M20 Items 27, 48, 67, 72, 75, 78 are available in 150385 Seal Kit. Items 408, 409, 414, 417 are available in K702590 King Pin Bearing Kit. Items 408, 409, 410, 414, 417 are available in 150386 King Pin Bearing Kit. Items 418, 419 are provided with item 412. Items 420, 421 are provided with item 413. See illustration on following page (NI=not illustrated).
4WD Mud Hog Vinyl Decal Application Instructions To apply your decal, please follow the instructions below: 1. Clean area above rear wheel on ladder side of machine to remove dirt and grime. 2. Without removing the paper backing, position decal on surface exactly where you want it. 3. Once the decal is in position, place a piece of masking tape along the top edge to hold the decal in place. 4. The decal should be sitting on the surface like a flap. Lift up the decal and remove the paper backing. 5. With the backing paper completely removed from the decal & transfer tape, gently lower the decal with the transfer tape back down to the surface and rub it down lightly with your hand. 6. The transfer tape should still be on the side of the decal facing you. This allows you to rub the decal without scratching or damaging the decal. Take a squeegee or credit card and firmly rub the transfer tape and thus the decal until it is firmly adhered to the surface. 7. Finally, peel off the transfer tape and masking tape gently. The decal will adhere to the surface much more aggressively than the transfer tape. The transfer tape should lift easily leaving behind no sticky residue. 8. Your decal installation is complete. If there are bubbles present under the decal that cannot be removed by working them to edge, a small needle or pin can be used to puncture the bubble and remove the air. A small pin hole will not be seen after the air bubble has been worked out.
LIMITED WARRANTY Tuthill Drive Systems ( Tuthill ) warrants Mud Hog drive systems and components to be free from defects in material and workmanship under normal use and service as shown in the chart below from the date of shipment from Tuthill. Installed By: Warranty Period Tuthill Drive Systems Mud Hog 24 months parts and 12 months labor for the Mud Hog kit & Installation. Authorized Mud Hog Dealer 24 months parts and 12 months labor for the Mud Hog kit. Note: Any defects resulting from installation errors are covered by the installer. Warranty period start date is determined by ship date from Tuthill Drive Systems. Normal use and service means that the product will be installed by a qualified mechanic, operated, inspected and maintained in accordance with the applicable Mud Hog manual or instructions and any applicable vehicle manufacturer s manual or instructions. Tuthill is not liable for any printing errors contained within manuals. THE ABOVE WARRANTY IS EXCLUSIVE. TUTHILL MAKES NO OTHER REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE. No agent, distributor, dealer or employee of Tuthill has authority to extend the scope of this warranty. This warranty applies only to products which are sold and used only in the United States, Canada and Mexico. [Tuthill does not itself warrant components which bear the name or trademark of another manufacturer. Any warranty or remedy for such parts is limited to the extent of any warranty provided by the manufacturer to Tuthill.] No warranty applies in the event of replacement of parts with parts not obtained from or approved by Tuthill which do not meet Tuthill quality and performance specifications, improper installation, maintenance, repair, misuse or abuse, or unauthorized alteration or modification. Wheel motor warranty will be denied if the motor is disassembled and or serviced by anyone other than an authorized Tuthill service center within the warranty period. Tuthill reserves the right to make changes and improvements in design, specifications or instructions without notice and without obligation to provide or to substitute new design modifications for those Mud Hog systems or components already in service. Tuthill will at its option refund the purchase price of, or repair or replace without charge for parts, any Mud Hog product determined by Tuthill to be defective in material or workmanship during the applicable warranty period. Labor allowance, if applicable, will be determined in accordance with Tuthill s warranty labor rate and time allowances established from time to time. These remedies are exclusive. In no event shall Tuthill s liability exceed the purchase price for the Mud Hog product when sold by Tuthill to the first buyer. Tuthill shall not be liable for any incidental or consequential damage or expense resulting from any product defect, including but not limited to loss of profits, loss of use of equipment, increased costs or other expenses. This warranty shall become effective only when the Warranty Certificate has been returned to Tuthill and validated by same. INSTALLER AND OWNER RESPONSIBILITIES The installer is responsible for installing the product according to Tuthill s approved procedures, for providing a copy of Tuthill s warranty and installation/parts manual to the owner, and for advising the owner of proper use, service, and maintenance required for the product. The owner is responsible for operation, inspecting and maintaining the product according to the instructions in the installation/parts manual and any applicable vehicle manufacturer s owner s manual, and for properly instructing all operators and maintenance personnel. ADJUSTMENTS When adjustment is sought under this warranty, a claim should be made as follows: A. Tuthill must be notified in writing promptly upon discovery of a claimed defect. B. If the product was installed by the vehicle manufacturer (or it s dealer), follow the manufacturer s procedures for warranty claims; or If the product was purchased from Tuthill through a distributor of Mud Hog products, have the distributor write or phone the Tuthill Customer Service Department and ask for a Returned Goods Authorization Number (RGA#). A warranty claim form will be submitted with information including: The RGA#, Tuthill axle serial #, retail sales date, machine hours and a description of the failure. C. Components requested by Tuthill must be returned freight prepaid and accompanied by a properly completed warranty claim form. Tuthill will specify the ship-to address at time of return approval. 9098 W. 800 S., Brookston, IN 47923, Tel: 219-279-2801 / 800-348-2474 Fax: 219-279-2390 Email: tdswebinquiries@tuthill.com Web: www.tuthill.com