36
Parker Hannifi n Corporation
Hydraulic Pump/Motor Division
Greeneville, Tennessee USA
Service Manual
HP2 Series Hydrostatic Tandem Pumps
HY13-1521-M1/US
Assembly
Install central
spring into rear
housing
Install rotating
group into rear
housing
Place housing seal
into groove
10. Place spring (11) over rear shaft as shown.
11. Tilt pump housing on side at slightly less
than a 90-degree angle (see photo). Slide in as-
sembly (21) over shaft splines and return pump
to upright position.
NOTE
Ensure that the pistons do not fall out of
the barrel.
12. Liberally lubricate housing seal (3) and place
in groove. Make sure it is fl at by running fi ngers
around top (see photo.)
NOTE
Seal can be pinched easily by housing if
not secure in groove.
35