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HYDROSTATIC PUMP (Cont’d)
Hydrostatic Pump Neutral Adjustment
When working on the left side of the hydrostatic
pump, Be Careful to keep your fingers and tools
clear of the cooling fan belt.
W–2185–0395
After the hydrostatic pump has been rebuilt, the neutral
for the servo valve spool will have to be adjusted. Use the
following procedure:
NOTE: The hydrostatic pump must be installed in
the loader for this procedure.
The following tool will be needed to do the following
procedure:
MEL1429A – Remote Start Switch
Lift and block the loader. (See Page 1–1.)
Raise the lift arms and install an approved lift arm support
devise. (See Page 1–1.)
Raise the operator cab. (See Page 1–1.)
Connect the remote start switch. (See Page 1–1.)
1. Block the neutral spring bracket out with a large
socket (1–1/8 inch) so you can feel and see the
linkage neutral setting [A] & [B].
The pump neutral adjustment bracket (Item 1) [C]
controls the position of the spool lever arm (Item 2) [C]
with a centering spring (Item 1) [D].
Inspect centering spring ends for damage or wear.
Replace the spring if there is excessive freeplay between
spool lever arm (Item 2) [C] and spring ends (Item 1) [D].
2. Loosen the bolt (Item 2) [D] for the neutral
adjustment bracket.
–3–60–
A
B
C
D
2
1
1
1
2
Socket
Cam
P–02866
MC–01944
P–07927
P–07928
853, 853H BICS Loader
Service Manual