7-12 4203781 First Edition
STEERING
7
!
CAUTION
NOTES
• Before attempting repairs or disassembly of any
hydraulic components, thoroughly clean the
components and work area. A clean work area is
essential to satisfactory operation of repaired
hydraulic components.
• Utilize steering unit service fixture for disassembly.
(See “Steering Unit Service Fixture” on page 7-10.)
1. Remove four special screws (12), one special screw
(13), and five O-rings (14).
2. Remove end cover (15).
3. Hold a hand under the gearwheel rim (17) and
gearwheel (18) to keep the gearwheel from falling
out, and remove the gearwheel rim (17), gearwheel
(18), and two O-rings (16).
4. Remove distributor plate (19).
5. Remove spacer (21) and cardan shaft (22).
6. Remove O-ring (20) from housing (23).
7. Remove spool (6), cross pin (8), and sleeve (9) as an
assembly.
8. Remove thin bearing race (3), bearing (4), and thick
bearing race (5).
9. Remove spring retaining ring (7).
10. Carefully press cross pin (8) out of the spool (6) and
sleeve (9), and remove spool from sleeve.
11. Press spring set (10) out of spool (6).
12. Remove fixture from vise and shake out check valve
ball (11), emergency steering ball (1), and ball stop
(2). Re-secure service fixture in vise with input shaft
down.
13. Remove housing (23) from service fixture.
14. Remove steering relief valve (25) and steering relief
valve spring (26).
Wear eye protection when assembling and
disassembling the steering unit. Springs and
other objects may be propelled into the air,
causing eye injury.
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