Parker P1/PD Series User Manual

Parker Hannin Corporation
Hydraulic Pump and Power Systems Division
Marysville, Ohio USA
Bulletin HY28-2708-02/SVC/EN | July 2019
Medium Pressure Axial Piston Pumps
P1/PD B-mod Service Information
46
19. Install the large O-ring (#4) into the groove on the port block (#3). Install the
three Teon O-rings (#8) on the pressure communication ports on the port
block.
20. Place the cam bearings (#31) in the cradle area of the housing. The chamfer
on the back of the bearing must face the outer wall of the housing. Use
Loctite Primer Grade “T” or other suitable primer on the cam bearing screws
(#30) and mating housing threads. Allow the primer to dry. This usually take
ten minutes. Apply Loctite 243 (use sparingly) to the cam bearing screw
threads and install the screws to hold the cam bearings in place. Torque the
screws per torque table values on page 9.
21. Place thin lm of clean oil on the cam bearing (#31) surfaces. Install the cam
(#29) in the housing. The cam must be tilted to permit entry into the housing.
See Figure 2.
NOTE: The large pocket on the bottom surface of the cam must be on the
same side as the three pressure communication holes on the main housing.
Cam assembly is not affected by pump rotation direction.
22. Position the pump horizontally and install the rotating group into the pump
housing over the pump shaft (#28) and against the cam (#29).
23. Place the bearing shim (#17) and port block bearing cone (#19) on around
the drive shaft (#28).
24. Carefully install the assembled port block (#3) on the pump housing. Press
the port block to compress the bias spring (#13) and install the four housing
bolts (#1). Tighten the bolts in a cross pattern to ensure that the port block
does not get cocked on the housing. When the port block is seated on the
housing, torque the bolts in a cross pattern per the values in Table 6.
25. Install any boss plugs (#2, 5, 16, 36 & 37) that were removed during
disassembly.
26. Install the ve O-ring seals and assembled compensator (#41) on the side
of the pump housing. Tighten the compensator bolts hand tight, and then
torque bolts per torque table on page 13.
Table 6
Pump Housing Bolt Torque
060
100 ± 4 ft-lbs
(135.6 ± 5 Nm)
075 / 085
100 ± 4 ft-lbs
(135.6 ± 5 Nm)
100
170 ± 5 ft-lbs
(229 ± 7 Nm)
140
205 ± 5 ft-lbs
(278 ± 7 Nm)
Pump Assembly Procedures
(Continued)
060, 075, 085, 100, 140 Assembly Procedures

Parker P1/PD Series Specifications

General

Brand	Parker
Model	P1/PD Series
Category	Water Pump
Language	English