B - Ardiehl.de

HYDROSTATIC PUMP (Cont’d)
Assembly (Cont’d)
Apply petroleum jelly to a new O–ring. Install the O–ring
on the plug [A].
Apply oil to the high pressure relief valve cartridge. Install
the high pressure relief valve cartridge, spring, shims (if
equipped) and plug [A].
Tighten the plug to 70–170 ft.–lbs. (95–230 Nm) torque.
Charge Pump Assembly
Apply oil to the gerotor assembly and gerotor cover.
Install the gerotor assembly into the gerotor cover [B].
Apply oil to the splined coupler (Item 1) [C] and drive pin
(Item 2) [C].
Install the splined coupler and drive pin into the gerotor
assembly [C].
The drive pin must be engaged in the gerotor slot.
Install the gerotor assembly into the rear pump [D].
NOTE: The gerotor assembly must be installed for
the correct rotation.
Pumps with split hydrostatic porting (two ports facing
forward and two facing rearward) the pin (Item 1) [D] must
be installed in the bottom holes (Item 2) [D].
Make sure to install the gerotor assembly for the correct
rotation. The pin (Item 1) [D] must be installed in the top
hole (Item 3) [D] in the housing.
Revised Mar. 03
A
B
C
D
1
1
2
3
2
CD–00057
CD–00056
CD–00055
CD–00054
853, 853H BICS Loader
–3–57– Service Manual