4. Remove end cover (4) and O-ring (2, Figure 5-5).
5. Remove outer gear of gear wheel set (1) and
O-ring between gear set and distribution plate.
6. Lift inner gear off cardan shaft.
7. Remove cardan shaft (11, Figure 5-7), distribution
plate (15) and O-ring (14).
8. Remove threaded bushing (4) and ball (3).
9. With valve housing positioned with the spool and
sleeve vertical, carefully lift spool assembly out of
housing bore.
Note: If housing is not vertical when spool and sleeve
are removed, pin (9) may slip out of position and trap
spools inside housing bore.
10. Remove O-ring (5), kin ring (6) and bearing assem-
bly (7).
11. Remove ring (8) and pin (9) and carefully push
inner spool out of outer sleeve.
12. Press the neutral position springs (10) out of their
slot in the inner spool.
13. Remove the dust seal (2, Figure 5-6) using a
screwdriver. Take care not to scratch or damage
the dust seal bore.
Cleaning and Inspection
1. Clean all parts carefully with fresh cleaning sol-
vent.
2. Inspect all parts carefully and make any replace-
ments necessary.
NOTE: All O-rings, seals and neutral position springs
should be replaced with new. Prior to reassembly
thoroughly lubricate all parts with clean type C-4 hy-
draulic oil.
FIGURE 5-5. END COVER REMOVAL
1. Gear Wheel Set 2. O-ring
FIGURE 5-6. DUST SEAL REMOVAL
1. Screwdriver
2. Dust Seal
3. Housing
L05021 Steering Control Unit L5-3
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