SkyTrak 6036 Service Manual - Manual (Page 280)

Hydraulic System
8.64 Model 6036 Legacy
Figure 8-31 Hydraulic System Pump
d. Pump Disassembly
1. Secure the pump (Fig. 8-31, 1) with the pump drive
shaft pointing down in a suitable holding device or
bench vise if possible. Scribe or otherwise make a
mark across the two pump housings (2 and 3) and
the gear housing (4), perpendicular to the parting
lines for easy identification and proper alignment
during assembly later.
2. Remove the four capscrews (Fig. 8 -31, 5) and
washers (6) that secure the two pump housings
(2 and 3) together.
3. Carefully separate the pump housings (Fig. 8-31, 2
and 3) from the gear housing (4). If it becomes
necessary to pry the components apart, proceed
carefully and DO NOT damage the machined
surfaces or internal components. Dowel pins (7) will
remain installed in most cases; DO NOT remove
dowel pins unless they are damaged.
4. Remove the square “R” seals (Fig. 8-31, 8), channel
seals (9), back-up seals (10) and thrust plates (11).
5. Carefully remove the drive and driven gear set
(Fig. 8-31, 12). To help avoid damaging the gears,
DO NOT tap the gear teeth together or against other
hardened surfaces. Keep the matched gears
together as a set.
6. Carefully clamp the Shaft End Cover (SEC) housing
(Fig. 8-31, 2) in a vise with the mounting face down.
Remove the lip seal (13) with a suitable seal removal
tool.
e. Pump Cleaning
Clean all pump components with a suitable cleaner such
as trichlorethylene.
MT1410
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