SkyTrak 8042 Service Manual - Manual (Page 487)

Hydraulic System
8.72 Model 8042, 10042, 10054 Legacy Rev. 10/03
d. Pump Disassembly
1. Remove the four screws (1) securing the pressure
compensator subassembly (2) from the valve
housing section (3) of the pump (4). Remove the
three o-rings (5).
2. Secure the pump (4) with the pump shaft (6) pointing
up in a suitable holding device or bench vise (if
possible).
3. Scribe or otherwise make a mark across the valve
housing (3), the housing (7) and the flange section
(8), perpendicular to the parting lines for easy
identification and proper alignment during assembly
later.
Note: Typically, it will only be necessary to separate the
flange section (8) from the housing (7) and valve block (3)
sections when disassembling the pump (4).
Note: If it becomes necessary to pry the components
apart when separating pump sections, proceed carefully
and DO NOT damage the machined surfaces or internal
components. Dowel pins (9) will remain installed in most
cases; DO NOT remove dowel pins unless they are
damaged.
4. Remove the shaft seal retaining ring (10), using lock
ring pliers.
5. Remove the bearing (11).
Note: Check the condition of the shaft seal (12).
Remove the shaft seal only if replacement is required.
MH3420
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