7-16 673831-Rev A
STEERING
7
• Inspect all parts for wear or damage and replace as
necessary.
• Lubricate all parts with clean hydraulic oil before
assembly.
• Always install new O-rings for assembly; used parts
may leak.
• Utilize steering unit service fixture for assembly. (See
“Steering Unit Service Fixture” on page 7-12.)
• Letter references (A-C) refer to components of Sauer
Danfoss Shaft Seal Tool.
1. Assemble relief valve (26 and 27) to housing (24).
Use new check valve o-ring included in seal kit.
2. Assemble shaft seal (20) onto guide (A).
3. Insert outer sleeve (B) into housing (24).
4. Place guide (A) on end of guide tool (C). Lubricate
shaft seal and O-ring.
5. Slide guide tool (C) into outer sleeve (B) and press
shaft seal into position. Remove outer sleeve and
guide tool. Guide (A) should remain inside housing
after seal is installed.
6. Install thin bearing race (19), bearing (18), and thick
bearing race (17) into housing (24).
7. Slide spool (16) into sleeve (12) and align so that
cross pin slots are adjacent to each other.
8. Center the spring set (14) in the spool and sleeve
assembly, and install spring retaining ring (15).
• When installing spring set, insert the curved springs
between the flat springs and push in place.
• Spring retaining ring (15) must be able to rotate
unimpeded by the springs.
9. Press cross pin (13) in the spool and sleeve
assembly.
10. While holding the cross pin in place, guide the spool
and sleeve assembly into housing (23). When
installed, cross pin (12) must point towards port “P.”
Spool will push seal guide (A) out of housing as it is
installed.
Figure 7-23
Wear eye protection when assembling and
disassembling the steering unit. Springs and
other objects may be propelled into the air,
causing eye injury.
Required Tools and Materials
• Service Kits and Components (Refer to “Parts and
Maintenance Manual” for part numbers.)
• Shaft Seal Tool (Sauer Danfoss SJ150L4011-01)
12
13
14
15
16
17
18
19
20
24
24
24
24
26
27
A
A
B
C
P
E
T
L
R
Cross
Pin
Spool
Assembly
Included in Seal Kit
Step 1
Steps 3-5
Step 2
Step 6
Step 10
Steps 7-9
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