Maintenance Instructions, Parts Identification & Seal Kits for Series 2H / 2HD / 2HB & 3H / 3HD / 3HB

Transcription

1 Service Bulletin HY08-3-M Parts Identification and Issued: October, 206 Supersedes: none Maintenance Instructions, Parts Identification & for Series 2H / 2HD / 2HB & 3H / 3HD / 3HB Service Assemblies and Service Assemblies and for Parker hydraulic cylinders simplify the ordering and maintenance process. They contain sub-assemblies which are ready for installation, and are supplied with full instructions. When ordering Service Assemblies, please refer to the identification plate on the cylinder body, and supply the Cylinder Part Number (CPN) and Serial Number. Note that these instructions apply only to Cylinder Part Numbers in the format H2H0AXXXXXXXX, H2HXAXXXXXXXX, H3H0AXXXXXXXX or H3HXAXXXXXXXX. Cylinder Modifications or Repairs Cylinders as shipped from the factory are not to be disassembled and or modified. If cylinders require modifications, these modifications must be done at company locations or by The Company s certified facilities. The Engineering Department must be notified in the event of a mechanical fracture or permanent deformation of any cylinder component (excluding seals). This includes a broken piston rod, tie rod, mounting accessory or any other cylinder component. The notification should include all operation and application details. This information will be used to provide an engineered repair that will prevent recurrence of the failure. It is allowed to disassemble cylinders for the purpose of replacing seals or seal assemblies. However, this work must be done by strictly following all the instructions provided in this bulletin. Although Parker Hydraulic Cylinders are designed to make on-site maintenance or repairs as easy as possible, some operations can only be carried out in our factory. It is standard policy to fit a cylinder returned to the factory for repair with those replacement parts which are necessary to return it to as good as new condition. If the condition of the returned cylinder is such that repair is uneconomical, you will be notified. The piston is sealed and torqued to the piston rod with anaerobic adhesive as secondary security. This threaded connection is not field serviceable. Only complete piston and rod assemblies will be supplied. WARNING: Some cylinders contain heavily loaded springs. Improper disassembly of these cylinders can cause severe bodily injury or death. Always disassemble a cylinder containing a spring by following the instructions in Bulletin 0805-G-TSD-. After the cylinder has been disassembled, remove the seals that will be replaced carefully, with a sharp pointed brass tool, to avoid damaging groove surfaces. Carefully clean all parts. s will be easier to install if they are lubricated. Always lubricate seals and other components of a hydraulic cylinder with the operating fluid. Cylinders fitted with Class 3 seals (EPR) cannot be lubricated or operated with petroleum based products. Servicing s The cylinder bore and piston must be closely examined for signs of scoring. If either the cylinder body or piston is damaged they must be replaced. When a cylinder is overhauled, a new set of piston seals is required. It is also recommended that the cylinder be reassembled with new cylinder body O-rings. All piston seal kits contain piston seals as well as two cylinder body O-rings (47) and for Classes 2, 3, 5, 6, 8 and all 7 and 8 inch bore hydraulic cylinders, their mating back-up washers (26). PK kits for CPN s covered by this bulletin contain one each piston seal and piston seal energizer, two piston wear rings and body end seals. for pistons with magnets contain only one wear ring. Apply lubricant to both the piston seal and piston seal energizer. Assemble the piston seal energizer into the center groove in the piston. HP Install over the piston seal energizer, taking care to avoid twist during installation. RP The RP piston seal is split and is installed over the piston seal energizer. KP & WP s The primary seal material for KP and WP piston seals is bronze filled PTFE. Heat (in the form of hot water) will likely be needed to soften the seals, allowing them to stretch over the wear ring groove and into the center groove of the piston. The WP secondary quad ring seal should be lubricated and installed into the center groove of the primary seal, taking care to avoid twist during installation. Using a ring compressor or hose clamp over shim stock (taking care not to damage the seal), keep the seal compressed for some time before inserting the piston into the cylinder body. Installing piston and rod assembly into cylinder body using a starting sleeve having an ID the same size as the cylinder bore, and tapered at one end, will aid the installation process. Wear Ring Installation Standard Install two split wear rings, one on each side of the piston seal.

2 Service Bulletin HY08-3-M Page 2 of 0 Magnetic first install magnet halves in the groove under the wear ring. White dot on magnet halves should face the piston rod resulting in a slight repelling force between the two magnets. If magnet halves are attracting, the switch will not function properly. Install the single split wear ring over the magnet halves. Cylinder Assembly The cylinder should be re-assembled as follows: a) The back-up washers, where fitted, and then the body O-rings should be lightly lubricated and pressed into the grooves in the head and cap, without twisting. b) For Series 2HB/3HB, install torquing flanges to the cylinder body. 2) The cylinder body, with the piston and rod already fitted, can then be assembled to the cap by rocking it down over the O-ring until the cylinder body is in contact with the cap. 3) Lightly lubricate the gland seals. 4a) Cylinders having a threaded gland Series 2H/3H The head is fitted over the piston rod and assembled to the cylinder body. Rock gently until the body and head are in metal-to-metal contact. Screw the gland into the retainer about one thread short of the retainer face that contacts the cylinder head. Slide the gland/ retainer assembly over the piston rod end, taking care not to damage the seal lips. This is easily accomplished on cylinders with standard rod ends that have a lead in chamfer. See Installation on page 3 for detailed instructions. Orient holes in full square retainers over the tie rod holes in the head or line up holes in smaller retainers with threaded mounting holes. Assemble bolts that secure bolt-on retainers finger tight. 4b) Cylinder having a non- threaded gland Series 2HD/3HD & 2HB/3HB Assemble the gland and retainer to the head with the bolts finger tight. Slide the gland/retainer/head assembly over the piston rod end, taking care not to damage the seal lips. This is easily accomplished on cylinders with standard rod ends that have a lead in chamfer. See Installation on page 3 for detailed instructions. 5a) Cylinders assembled with tie rods Series 2H/3H & 2HD/3HD Ensuring that the head and cap are kept in alignment, refit the cylinder tie rods. Note: Some cylinder configurations have tie rods threaded into a component other than tie rod nuts (e.g. head, cap, flange plate, etc.). Before torqueing the tie rods, use paint on the tie rods as an indicator that adequate thread engagement is achieved. Ensure that no unpainted thread is exposed at the connection to the mating component. 5b) Cylinders assembled with bolts (non-tie rod) Series 2HB/3HB Ensuring that the head and cap are kept in alignment, assemble tie bolts that secure head and cap to torquing flanges finger tight. For full face and bolt-on style retainers, torque tie rod nuts or bolts to values listed on page 0. Torque tie rods or bolts gradually starting at one corner and work in a diagonal pattern to ensure evenness of tightening. DO NOT TORQUE ONE TIE ROD OR BOLT COMPLETELY AND THEN THE OTHERS. When Series 2HB/3HB bolts are fully torqued, there must be a small gap between the torque flange and head and cap. NEITHER THE HEAD NOR CAP SHOULD BE IN CONTACT WITH THE TORQUE FLANGE. Then, on cylinders with bolt-on retainers, torque bolts to the values listed on page 0. When bolts are fully torqued, there must be a small gap between the torque flange and head and cap. NEITHER THE HEAD NOR CAP SHOULD BE IN CONTACT WITH THE TORQUE FLANGE. Trunnion Mounts Trunnion mount with trunnion in groove on cylinder body Torque cap end tie rods to value listed in table, then torque head tie rods to the same value. Trunnion mounts with trunnion located against a single shoulder on the cylinder body Torque tie rods on the larger diameter side of the shoulder to approx. 0% of torque table value. Then torque the tie rods on the opposite end to the full table value. Trunnion mounts located on a cylinder body without a shoulder Assemble short set of tie rods first, using paint marks on the cylinder body as a location guide. Ensure the trunnion pins are square to the body. Install the longer tie rods and torque to values in the table. 5) To complete the assembly of cylinders with a threaded gland, tighten the gland firmly against the cylinder head. To aid this process, a Wrench Set should be used. A specially designed face-type gland wrench with flared lugs slips into an exact, sure fit on the gland, while a selflocking spanner wrench grips the gland wrench securely. Servicing Cushion Needle and Check Valves Leakage from cushion adjusters or check valve screws indicates that the screw or cartridge-type assembly must be replaced. The replacement assembly includes a new O-ring. Removal The cartridge assembly should be unscrewed and its mounting hole cleaned, paying close attention to the surface on which the O-ring sits. Installation Cushion Needle Valves Lightly lubricate the screw threads and torque to the figures shown in the table on page 0. The hex-socket headed screw may be adjusted to provide the required cushioning performance. Installation Check Valve Check valves are supplied only on the cap end of cylinders with solid cap end cushion construction.

3 Service Bulletin HY08-3-M Page 3 of 0 Ensure that the ball is correctly positioned. Servicing Cylinder s Fluid leakage from the piston rod at the gland normally indicates worn gland seals. The cylinder should, if possible, be removed for overhaul, or the piston rod disconnected. Removal ) Inspect the piston rod to make sure it is free from burrs or damage which would prevent the gland sliding off the rod. The Parker gland is a cartridge design consisting of a bronze gland (), primary rod seal (4), a double lip wiperseal (), and for Classes 3 and 5 a back-up washer (43). For Series 2H/3H, the gland is threaded into a gland retainer plate. These glands are usually removable without disturbing the tie rod torque. In some cases, where a large diameter rod gland is threaded into a large square retainer, it may be necessary to loosen the tie rods to remove the gland. For Series 2HD/3HD & 2HB/3HB the gland, in most bore and rod combinations, is secured by screws. 2) Where the gland is screwed into a square retainer, unscrew the gland using a Wrench and Spanner and slide the gland off the piston rod. Where the gland is screwed into a circular retainer or clamped by a circular retainer, undo the socket head cap screws and slide the gland/retainer assembly off the piston rod. Unscrew threaded gland and withdraw it from the inner face of the retainer. 3) Remove the seals using a sharp pointed brass instrument, taking care not to damage the gland. Clean and inspect the gland bore and seal grooves. If any wear is present replace with a Kit containing seals of the correct type for the conditions. Installation Inspect the surface of the piston rod for damage or foreign material adhering to the rod which could cause early seal failure. When fitting the gland over the rod thread, a slight rotary motion will help prevent damage to the seals. In addition, shim stock or other thin, tough material can be wrapped around the threads to protect the seal lips. ) Ensure that the kit contains seals of the correct type. Lubricate the gland and seals, and fit the wiper () into the groove closest to the outside face of the gland. 2) If a Series 2H/3H Class, 2 & 6 material rod seal or Series 2HD/2HB/3HD/3HB Class & 4 material rod seal is being fitted to a standard gland, no back-up washer Series 2H Series 2HD & 2HB is necessary. A back-up washer (43) is included for Series 2H/3H Classes 3, 4 & 5 and Series 2HD/2HB/3HD/3HB Classes 2, 3, 5 & 6. Install this in the rod seal groove, against the wall closest to the wiper. Install the lipseal (4) in the groove, with the lips facing the pressure (cylinder) side of the gland. 3) When servicing glands with filled PTFE rod seals and wiperseal it is recommended that the complete gland assembly be replaced, which eliminates the possibility of damaging seals during assembly. Extreme care must be taken to avoid damage to filled PTFE seals when inserting them into the gland. 4) Each kit with either a threaded type gland or bolt-on type gland contains an O-ring (45) which seals the gland to the cylinder head. This O-ring is a static seal, and the original may be left in place unless it is faulty. To replace this o-ring the head should be removed from the cylinder. Threaded Style s - Slide the gland cartridge over the piston rod and thread it into the retainer. Tighten the gland firmly against the cylinder head using a Wrench and Spanner. In some cases (especially large piston rod diameters) it may be necessary to loosen the tie rod nuts or retainer bolts, and remove the retainer, in order to thread the gland back into place. In those cases, thread the gland into the retainer about one thread short of the retainer face that contacts the cylinder head. Slide the gland assembly over the piston rod and orient holes in large retainers with tie rod holes, and holes in bolt-on retainers with threaded mounting holes. Seat the retainer against the cylinder head. Assemble bolts that secure bolt-on retainers finger tight. For both style retainers, torque tie rod nuts to values listed on page 0. Torque tie rods gradually starting at one corner and work in a diagonal pattern to ensure evenness of tightening. DO NOT TORQUE ONE TIE ROD COMPLETELY AND THEN THE OTHERS. Then, on all cylinders with bolt-on retainers, torque bolts to the values listed on page 0. To complete the threaded gland assembly, in all cases, tighten the gland cartridge firmly against the cylinder head using a Wrench and Spanner A 63

4 Service Bulletin HY08-3-M Page 4 of 0 Parts Identification and for Series 2H / 2HD / 2HB & 3H / 3HD / 3HB.50" " Bore Series 2H " " Bore Series 2HD and Assemblies Factory assembled piston and rod assemblies (that include seals for piston type specified) are recommended and are sold exclusively to repair cylinders with damaged pistons or piston rods. Parts List.50" through 6.00" Bore Head 7 Cap 5 Cylinder Body 8 Cushion Sleeve, head end cushion 9 Tie 23 Tie Nut 27 Retainer 37, single rod type Wiper 4 43 Back-up Washer, rod seal do not include Sym. # 45 O-Ring 47 O-Ring, cylinder tube to head and cap seal 70 Needle Valve, cushion adjustment cartridge 73 Bushing, float check, cushion on cap end 74 Retaining Ring, float check cushion bushing Energizer 2 Wear Ring 22 Retainer Bolt 23 Washer, tie rod nut 24 O-Ring, piston to rod seal

5 Service Bulletin HY08-3-M Page 5 of 0.50" " Bore Series 2HB and Assemblies Factory assembled piston and rod assemblies (that include seals for piston type specified) are recommended and are sold exclusively to repair cylinders with damaged pistons or piston rods. Parts List.50" through 6.00" Bore 22 Head 7 Cap 5 Cylinder Body 8 Cushion Sleeve, head end cushion 9 Tie Bolt 27 Retainer 37, single rod type Wiper 4 43 Back-up Washer, rod seal 45 O-Ring Fluids and Temperature Range O-Ring, cylinder tube to head and cap seal 70 Needle Valve, cushion adjustment cartridge 73 Bushing, float check, cushion on cap end 74 Retaining Ring, float check cushion bushing Energizer 2 Wear Ring 22 Retainer Bolt 23 Washer, tie bolt 24 O-Ring, piston to rod seal 25 Torque Flange Class No. (Standard) (Nitrile Polyurethane) 2 Optional Water Base Fluid 3 Special (EPR) (at extra cost) Some Phosphate Ester Fluids Skydrol 500, 7000 Note: (EPR) seals are not compatible with Hydraulic Oil 4 Special (Nitrile) (at extra cost) 5 Optional (at extra cost) (Fluorocarbon s) Mobil Pyrogard 42,43,53,55 Note: Fluorocarbon seals are not suitable for use with Skydrol fluid, but can be used with hydraulic oil if desired. 6 Optional (HWCF) (at extra cost) 8 Optional (at extra cost) Energized PTFE Typical Fluids Air, Nitrogen Hydraulic Oil, Mil-H-5606 Oil Water, Water-Glycol, HWCF See Class 6 below. Water-in-Oil Emulsion Houghto-Safe, 27, 620, 50. Mobil Pyrogard D, Shell Irus 905. Ucon Hydrolube J-4 Low Temperature Air or Hydraulic Oil High Temperature Houghto-Safe 00, 055, 20 Fyrquel 50, 220, 300, 550 Houghton, Hydrolubric 20B Sonsol Lubrizol, for other HWCF consult factory. See Class 5 s Temperature Range -0 F (-23 C) to +65 F (+74 C) -0 F (-23 C) to +65 F (+74 C) -0 F (-23 C) to +30 F (+54 C) -50 F (-46 C) to +50 F (+66 C) See paragraph on Fluorocarbon seals for recommended temperature range. + F (+4 C) to +20 F (+49 C) -5 F (-26 C) to +0 F (+204 C)

6 Service Bulletin HY08-3-M Page 6 of 0 Series 2H and Class Service (Polyurethane & Nitrile) Class 3 Service (EPR) #,, 4, 43 & 45 Type Class 5 Service (FKM) #,, 4, 43 & 45 Series 2HD & 2HB and Class 2 & 6 Service (Nitroxile) Class 8 Service (Filled PTFE & Fluorocarbon) RG2HLG206 RK2HLG206 RG2AHLG063 RK2AHLG063 RG2AHLG065 RK2AHLG065 RG2AHLG062 RK2AHLG062 N/A N/A.000 RG2HLG20 RK2HLG20 RG2AHLG03 RK2AHLG03 RG2AHLG05 RK2AHLG05 RG2AHLG02 RK2AHLG02 RG2AHLG08 RK2AHLG RG2HLG23 RK2HLG23 RG2AHLG33 RK2AHLG33 RG2AHLG35 RK2AHLG35 RG2AHLG32 RK2AHLG32 RG2AHLG38 RK2AHLG RG2HLG27 RK2HLG27 RG2AHLG73 RK2AHLG73 RG2AHLG75 RK2AHLG75 RG2AHLG72 RK2AHLG72 RG2AHLG78 RK2AHLG RG2HLG220 RK2HLG220 RG2AHLG203 RK2AHLG203 RG2AHLG205 RK2AHLG205 RG2AHLG202 RK2AHLG202 RG2AHLG208 RK2AHLG RG2HLG225 RK2HLG225 RG2AHLG253 RK2AHLG253 RG2AHLG255 RK2AHLG255 RG2AHLG252 RK2AHLG252 RG2AHLG258 RK2AHLG RG2HLG230 RK2HLG230 RG2AHLG303 RK2AHLG303 RG2AHLG305 RK2AHLG305 RG2AHLG302 RK2AHLG302 RG2AHLG308 RK2AHLG RG2HLG235 RK2HLG235 RG2AHLG353 RK2AHLG353 RG2AHLG355 RK2AHLG355 RG2AHLG352 RK2AHLG352 RG2AHLG358 RK2AHLG RG2HLG2 RK2HLG2 RG2AHLG3 RK2AHLG3 RG2AHLG5 RK2AHLG5 RG2AHLG2 RK2AHLG2 RG2AHLG8 RK2AHLG8 Class Service (Polyurethane & Nitrile) Class 3 Service (EPR) #,, 4, 43 & 45 Type Class 5 Service (FKM) #,, 4, 43 & 45 Class 2 & 6 Service (Nitroxile) #,, 43, 4 & 45 Class 8 Service (Filled PTFE & Fluorocarbon) RG2HDG206 RK2HDG206 RG2HDG2063 RK2HDG2063 RG2HDG2065 RK2HDG2065 RG2HDG2062 RK2HDG2062 N/A N/A.000 RG2HDG20 RK2HDG20 RG2HDG203 RK2HDG203 RG2HDG205 RK2HDG205 RG2HDG202 RK2HDG202 RG2HDG208 RK2AHLG RG2HDG23 RK2HDG23 RG2HDG233 RK2HDG233 RG2HDG235 RK2HDG235 RG2HDG232 RK2HDG232 RG2HDG238 RK2AHLG RG2HDG27 RK2HDG27 RG2HDG273 RK2HDG273 RG2HDG275 RK2HDG275 RG2HDG272 RK2HDG272 RG2HDG278 RK2AHLG RG2HDG220 RK2HDG220 RG2HDG2203 RK2HDG2203 RG2HDG2205 RK2HDG2205 RG2HDG2202 RK2HDG2202 RG2HDG2208 RK2AHLG RG2HDG225 RK2HDG225 RG2HDG2253 RK2HDG2253 RG2HDG2255 RK2HDG2255 RG2HDG2252 RK2HDG2252 RG2HDG2258 RK2AHLG RG2HDG230 RK2HDG230 RG2HDG2303 RK2HDG2303 RG2HDG2305 RK2HDG2305 RG2HDG2302 RK2HDG2302 RG2HDG2308 RK2AHLG RG2HDG235 RK2HDG235 RG2HDG2353 RK2HDG2353 RG2HDG2355 RK2HDG2355 RG2HDG2352 RK2HDG2352 RG2HDG2358 RK2AHLG RG2HDG2 RK2HDG2 RG2HDG23 RK2HDG23 RG2HDG25 RK2HDG25 RG2HDG22 RK2HDG22 RG2HDG28 RK2AHLG8 Series 2HD & 2HB / 3HD & 3HB Crown Wiper and Type Class Service Class 5 Service (Polyurethane & Nitrile) (FKM) #,, #,, 4 & 45 4, 43 & 45 Crown Wiper Crown Wiper Crown Wiper Crown Wiper Retainer Bolt Torque (Torque values are for bolts installed with lubrication) RGCW2HG06 RKCW2HG06 RGCW2HG065 RKCW2HG lb-in.000 RGCW2HG0 RKCW2HG0 RGCW2HG05 RKCW2HG05-42 lb-in.375 RGCW2HG3 RKCW2HG3 RGCW2HG35 RKCW2HG lb-in.750 RGCW2HG7 RKCW2HG7 RGCW2HG75 RKCW2HG lb-in RGCW2HG20 RKCW2HG20 RGCW2HG205 RKCW2HG205-2 ft-lb RGCW2HG25 RKCW2HG25 RGCW2HG255 RKCW2HG255-2 ft-lb RGCW2HG30 RKCW2HG30 RGCW2HG305 RKCW2HG ft-lb RGCW2HG35 RKCW2HG35 RGCW2HG355 RKCW2HG ft-lb RGCW2HG RKCW2HG RGCW2HG5 RKCW2HG ft-lb RGCW2HG45 RKCW2HG45 RGCW2HG455 RKCW2HG ft-lb RGCW2HG50 RKCW2HG50 RGCW2HG505 RKCW2HG ft-lb RGCW2HG55 RKCW2HG55 RGCW2HG555 RKCW2HG ft-lb do not include Sym. # 2H, 2HD & 2B Kit and Kit Parts Identification contain items,, 4 and 45 (43 ) contain items, 4 and 45 (43 ) Item 43 is included in kits for Series 2H cylinders with Class 3, 4 & 5 seals and in kits for Series 2HD/2HB cylinders with Class 2, 3, 5 & 6 seals. Series 2H Series 2HD & 2HB

7 Service Bulletin HY08-3-M Page 7 of 0 Series 2H / 2HD / 2HB Includes cylinder body end seals Magnet Class include two each of items 47 & 2 (one of item 2 for magnetic piston) and one each of items 9 & H N PK52HH00 PK202HH00 PK252HH00 PK322HH00 PK2HH00 PK502HH00 PK602HH00 H 3, 7 PK52HHM0 PK202HHM0 PK252HHM0 PK322HHM0 PK2HHM0 PK502HHM0 PK602HHM0 H N 4 PK52HH004 PK202HH004 PK252HH004 PK322HH004 PK2HH004 PK502HH004 PK602HH004 H 3, 7 4 PK52HHM04 PK202HHM04 PK252HHM04 PK322HHM04 PK2HHM04 PK502HHM04 PK602HHM04 K N PK52HF00 PK202HF00 PK252HF00 PK322HF00 PK2HF00 PK502HF00 PK602HF00 K N 2,6 PK52HF002 PK202HF002 PK252HF002 PK322HF002 PK2HF002 PK502HF002 PK602HF002 K 3, 7 PK52HFM0 PK202HFM0 PK252HFM0 PK322HFM0 PK2HFM0 PK502HFM0 PK602HFM0 K 3, 7 2,6 PK52HFM02 PK202HFM02 PK252HFM02 PK322HFM02 PK2HFM02 PK502HFM02 PK602HFM02 K N 3 PK52HF003 PK202HF003 PK252HF003 PK322HF003 PK2HF003 PK502HF003 PK602HF003 K 3, 7 3 PK52HFM03 PK202HFM03 PK252HFM03 PK322HFM03 PK2HFM03 PK502HFM03 PK602HFM03 K N 4 PK52HF004 PK202HF004 PK252HF004 PK322HF004 PK2HF004 PK502HF004 PK602HF004 K 3, 7 4 PK52HFM04 PK202HFM04 PK252HFM04 PK322HFM04 PK2HFM04 PK502HFM04 PK602HFM04 K N 5 PK52HF005 PK202HF005 PK252HF005 PK322HF005 PK2HF005 PK502HF005 PK602HF005 K N 8 PK52HF008 PK202HF008 PK252HF008 PK322HF008 PK2HF008 PK502HF008 PK602HF008 K 3, 7 5 PK52HFM05 PK202HFM05 PK252HFM05 PK322HFM05 PK2HFM05 PK502HFM05 PK602HFM05 R N PK52HR00 PK202HR00 PK252HR00 PK322HR00 PK2HR00 PK502HR00 PK602HR00 R N 2,6 PK52HR002 PK202HR002 PK252HR002 PK322HR002 PK2HR002 PK502HR002 PK602HR002 R 3, 7 PK52HRM0 PK202HRM0 PK252HRM0 PK322HRM0 PK2HRM0 PK502HRM0 PK602HRM0 R 3, 7 2,6 PK52HRM02 PK202HRM02 PK252HRM02 PK322HRM02 PK2HRM02 PK502HRM02 PK602HRM02 R N 3 PK52HR003 PK202HR003 PK252HR003 PK322HR003 PK2HR003 PK502HR003 PK602HR003 R 3, 7 3 PK52HRM03 PK202HRM03 PK252HRM03 PK322HRM03 PK2HRM03 PK502HRM03 PK602HRM03 R N 4 PK52HR004 PK202HR004 PK252HR004 PK322HR004 PK2HR004 PK502HR004 PK602HR004 R 3, 7 4 PK52HRM04 PK202HRM04 PK252HRM04 PK322HRM04 PK2HRM04 PK502HRM04 PK602HRM04 R N 5 PK52HR005 PK202HR005 PK252HR005 PK322HR005 PK2HR005 PK502HR005 PK602HR005 R 3, 7 5 PK52HRM05 PK202HRM05 PK252HRM05 PK322HRM05 PK2HRM05 PK502HRM05 PK602HRM05 W N PK52HW00 PK202HW00 PK252HW00 PK322HW00 PK2HW00 PK502HW00 PK602HW00 W N 2,6 PK52HW002 PK202HW002 PK252HW002 PK322HW002 PK2HW002 PK502HW002 PK602HW002 W 3, 7 PK52HWM0 PK202HWM0 PK252HWM0 PK322HWM0 PK2HWM0 PK502HWM0 PK602HWM0 W 3, 7 2,6 PK52HWM02 PK202HWM02 PK252HWM02 PK322HWM02 PK2HWM02 PK502HWM02 PK602HWM02 W N 3 PK52HW003 PK202HW003 PK252HW003 PK322HW003 PK2HW003 PK502HW003 PK602HW003 W 3, 7 3 PK52HWM03 PK202HWM03 PK252HWM03 PK322HWM03 PK2HWM03 PK502HWM03 PK602HWM03 W N 5 PK52HW005 PK202HW005 PK252HW005 PK322HW005 PK2HW005 PK502HW005 PK602HW005 W 3, 7 5 PK52HWM05 PK202HWM05 PK252HWM05 PK322HWM05 PK2HWM05 PK502HWM05 PK602HWM05 2H / 2HD Tie Torque and 2HB Tie Bolt Torque lb-ft lb-ft lb-ft lb-ft 3-35 lb-ft lb-ft lb-ft Note: The tie rod torque values are for cylinders rated at 3,000 psi. Consult the factory for torque values for cylinders rated above 3,000 psi Item 9 for piston style WP (model number code W) includes both the PTFE primary seal and the redundant quad ring seal. 2 The.50" bore WP seal groove is unique and not universal to the other seal styles. Changing an existing.50" bore cylinder either from or to a WP piston seal requires that a new piston and rod assembly be ordered. HP KP RP WP Note: Item 47, cylinder body end seal, is not shown.

8 Service Bulletin HY08-3-M Page 8 of " & 8.00" Bore Series 3H " & 8.00" Bore Series 3HD " & 8.00" Bore Series 3HB Parts List 7.00" & 8.00" Bore Head 7 Cap 5 Cylinder Body 8 Cushion Sleeve, head end cushion 9 Tie or Tie Bolt 23 Tie Nut 26 Back-up Washer, tube end seal 27 Retainer 37, single rod type Wiper 4 43 Back-up Washer, rod seal O-Ring 47 O-Ring, cylinder tube to head and cap seal 70 Needle Valve, cushion adjustment cartridge Energizer 2 Wear Ring 22 Retainer Bolt 23 Washer, tie rod or tie bolt 24 O-Ring, piston to rod seal 25 Torque Flange 37 Cushion Spear, detachable 38 Bolt, cushion spear

9 Service Bulletin HY08-3-M Page 9 of 0 Series 3H 7.00" & 8.00" Bore and Class Service (Polyurethane & Nitrile) Class 3 Service (EPR) #,, 4, 43 & 45 Type Class 5 Service (FKM) #,, 4, 43 & 45 Class 2 & 6 Service (Nitroxile) Class 8 Service (Filled PTFE & Fluorocarbon) RG2HLG230 RK2HLG230 RG2AHLG303 RK2AHLG303 RG2AHLG305 RK2AHLG305 RG2AHLG302 RK2AHLG302 RG2AHLG308 RK2AHLG RG2HLG235 RK2HLG235 RG2AHLG353 RK2AHLG353 RG2AHLG355 RK2AHLG355 RG2AHLG352 RK2AHLG352 RG2AHLG358 RK2AHLG RG2HLG2 RK2HLG2 RG2AHLG3 RK2AHLG3 RG2AHLG5 RK2AHLG5 RG2AHLG2 RK2AHLG2 RG2AHLG8 RK2AHLG RG2HLG245 RK2HLG245 RG2AHLG453 RK2AHLG453 RG2AHLG455 RK2AHLG455 RG2AHLG452 RK2AHLG452 RG2AHLG458 RK2AHLG RG2HLG250 RK2HLG250 RG2AHLG503 RK2AHLG503 RG2AHLG505 RK2AHLG505 RG2AHLG502 RK2AHLG502 RG2AHLG508 RK2AHLG RG2HLG255 RK2HLG255 RG2AHLG553 RK2AHLG553 RG2AHLG555 RK2AHLG555 RG2AHLG552 RK2AHLG552 RG2AHLG558 RK2AHLG558 do not include Sym. # Series 3HD & 3HB 7.00" & 8.00" Bore and Class Service (Polyurethane & Nitrile) do not include Sym. # Class 3 Service (EPR) #,, 4, 43 & 45 Type Class 5 Service (FKM) #,, 4, 43 & 45 Class 2 & 6 Service (Nitroxile) #,, 4, 43 & 45 Class 8 Service (Filled PTFE & Fluorocarbon) RG2HDG230 RK2HDG230 RG2HDG2303 RK2HDG2303 RG2HDG2305 RK2HDG2305 RG2HDG2302 RK2HDG2302 RG2HDG2308 RK2AHLG RG2HDG235 RK2HDG235 RG2HDG2353 RK2HDG2353 RG2HDG2355 RK2HDG2355 RG2HDG2352 RK2HDG2352 RG2HDG2358 RK2AHLG RG2HDG2 RK2HDG2 RG2HDG23 RK2HDG23 RG2HDG25 RK2HDG25 RG2HDG22 RK2HDG22 RG2HDG28 RK2AHLG RG2HDG245 RK2HDG245 RG2HDG2453 RK2HDG2453 RG2HDG2455 RK2HDG2455 RG2HDG2452 RK2HDG2452 RG2HDG2458 RK2AHLG RG2HDG250 RK2HDG250 RG2HDG2503 RK2HDG2503 RG2HDG2505 RK2HDG2505 RG2HDG2502 RK2HDG2502 RG2HDG2508 RK2AHLG RG2HDG255 RK2HDG255 RG2HDG2553 RK2HDG2553 RG2HDG2555 RK2HDG2555 RG2HDG2552 RK2HDG2552 RG2HDG2558 RK2AHLG558 Series 3H / 3HD / 3HB Includes cylinder body end seals Magnet Class Bore Diameter include two each of items 47 & 2 and one each of items 9 & 20. Magnet Class Bore Diameter include two each of items 26, 47 & 2 and one each of items 9 & H N PK703HH00 PK803HH00 R N PK703HR00 PK803HR00 H N 4 PK703HH004 PK803HH004 R N 2,6 PK703HR002 PK803HR002 K N PK703HF00 PK803HF00 R N 3 PK703HR003 PK803HR003 K N 2,6 PK703HF002 PK803HF002 R N 4 PK703HR004 PK803HR004 K N 3 PK703HF003 PK803HF003 R N 5 PK703HR005 PK803HR005 K N 4 PK703HF004 PK803HF004 W N PK703HW00 PK803HW00 K N 5 PK703HF005 PK803HF005 W N 2,6 PK703HW002 PK803HW002 K N 8 PK703HF008 PK803HF008 W N 3 PK703HW003 PK803HW W N 5 PK703HW005 PK803HW005 Tie Torque lb-ft lb-ft Tie Torque lb-ft lb-ft Note: The tie rod torque values are for cylinders rated at 3,000 psi. Consult the factory for torque values for cylinders rated above 3,000 psi Item 9 for piston style WP (model number code W) includes both the PTFE primary seal and the redundant quad ring seal.

10 Service Bulletin HY08-3-M Page 0 of 0 Tie / Bolt Torque An extreme pressure lubricant (such as molybdenum disulfide) should not be used on the tie rod and bolt threads and nut and bolt head bearing surfaces to control friction and reduce tie rod twist. Bore Tie / Bolt Torque Series 2H/2HD/2HB & 3H/3HD/3HB lb-ft N-m lb-ft 6-67 N-m lb-ft 6-67 N-m lb-ft N-m lb-ft N-m lb-ft N-m lb-ft N-m lb-ft N-m lb-ft N-m The tie rod / bolt torque values listed in this table are intended for 2H/2HD/2HB & 3H/3HD/3HB Series cylinders having an envelope pressure rating of 3000 psi. Consult the factory for the tie rod torque of 2H/2HD/2HB & 3H/3HD/3HB Series cylinders having a higher pressure rating. Cushion Adjustment Torque Bore Torque lb-ft 9-0 N-m 2.00, lb-ft N-m lb-ft N-m lb-ft N-m Wrenches Retainer Bolt Torque For Cylinders with Round Retainers Wrench ( 63) Spanner Wrench ( 63-A) Retainer Bolt Torque lb-in kg-cm lb-in kg-cm lb-in kg-cm lb-in kg-cm lb-ft 5-6 N-m lb-ft 5-6 N-m lb-ft 3-34 N-m lb-ft 3-34 N-m lb-ft N-m lb-ft N-m lb-ft N-m lb-ft N-m Torque values are for bolts installed with lubrication. WARNING FAILURE OR IMPROPER SELECTION OR IMPROPER USE OF THE PRODUCTS AND/OR SYSTEMS DESCRIBED HEREIN OR RELATED ITEMS CAN CAUSE DEATH, PERSONAL INJURY AND PROPERTY DAMAGE. This document and other information from the, its subsidiaries and authorized distributors provide product and/or system options for further investigation by users having expertise. It is important that you analyze all aspects of your application, including consequences of any failure and review the information concerning the product or system in the current product catalog. Due to the variety of operating conditions and applications for these products or systems, the user, through its own analysis and testing, is solely responsible for making the final selection of the products and systems and assuring that all performance, safety and warning requirements of the application are met. The products described herein, including without limitation, product features, specifications, designs, availability and pricing, are subject to change by and its subsidiaries at any time without notice. Offer of Sale The items described in this document are hereby offered for sale by, its subsidiaries or its authorized distributors. This offer and its acceptance are governed by provisions stated on a separate document entitled Offer of Sale. Copyright 206,. All Rights Reserved.