m.Remove the bearing race (8) from the end cap. The race is installed with a slip fit. Note that there may be shimsinstalled between the bearing race and the cap to adjust end play. Retain these shims for reassembly. Loss ofthese shims will result in improper end play causing reduced bearing life and possibly reduced pumpperformance.n.Using a clam type bearing puller, remove the tapered roller bearing (8) from the shaft (30). Care must be takennot to damage the cylinder block (10) surface or contaminate the unit during this operation. A spacer is alsorequired to protect the end of the pump shaft from damage by the puller screw.o.Remove the end cap gasket (6) from the pump housing (23).p.With the pump laying horizontally, slide the cylinder block assembly (10) off the shaft while holding the externalend of the shaft (30).q.If the cylinder block assembly (10) does not remain together during removal, it can be reassembled at a latertime. (The rotating group consists of a retainer, retainer guide, washer, three pins, nine pistons and the cylinderblock).r.Remove the thrust plate (14) from its counterbore in swashplate (16). The thrust plate may be difficult to removedue to the oil between the flat surfaces of the thrust plate and the swashplate. Avoid damaging all criticalsurfaces.s.With a punch or metal scribe, mark right and left trunnions (20) to insure reassembly to the correct side of thehousing.t.Using a hex or internal hex wrench as needed, remove the three cap screws (19) from each trunnion.u.Remove each trunnion by using a soft, blunt object to drive it out of the housing (23) from the inside. Remove o-ring (21) from each trunnion.v.After both trunnion assemblies have been removed, the swashplate (16) can be removed from the pump housing(23).w.Lift the spring retainer (17) and bias spring (18) out of the pump housing (23).x.Once the swashplate has been removed, the shaft (30) can be easily removed from the end cap side of thehousing. The front bearing (29) is pressed onto the shaft and will be removed with the shaft. However, thebearing race will remain in the housing.y.The tapered bearing (29) can be pressed off the shaft (30) if necessary. Be careful not to damage the sealdiameter of the shaft while removing the bearing.4-6.3.2 Cleaning, Inspection and Repair.a.If the control (42, Figure 4-12) is not performing properly because of sticking or contamination, it can be furtherdisassembled for cleaning or repair. (Refer to Figure 4-13).4-63
Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business
