Textron JACOBSEN GP400, Technical/Repair Manual

Page: 265 / 354

STEERING
4252490-Rev A 7-11
7
17. Re-secure service fixture in vise with input shaft
down.
18. Remove housing (2) from service fixture.
19. Remove seal (25) from housing (2).
!
WARNING
NOTICE
20. Clean all parts using clean solvent, and dry using
compressed air.
21. Inspect all parts for excessive wear, cracks, broken
parts, and damaged threads.
Assembly
See Figures 7-21 through 7-28.
!
CAUTION
NOTES
• 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 7-7.)
Figure 7-21
1. Assemble spool (4) into sleeve (2) and align so that
cross pin slots are adjacent to each other.
2. Install cross pin (5) in the spool and sleeve
assembly.
NOTES
• See Figure 7-21. When installing spring set, insert
the curved springs between the flat springs and push
in place.
• Spring retaining ring must be able to rotate
unimpeded by the springs.
3. Center the spring set (1) in the spool and sleeve
assembly, and install spring retaining ring (3).
Use appropriate eye protection when using
compressed air for cleaning or drying purposes.
Compressed air can cause serious personal
injury. Use safety reduction valves to reduce the
air pressure to a safe level before use.
It is important that all components are absolutely
clean, as contamination can result in serious
damage and/or improper operation.
Never use shop towels or rags to dry parts after
cleaning, as lint may clog passages. Dry parts
using compressed air.
Wear eye protection when assembling and
disassembling the steering unit. Springs and
other objects may be propelled into the air,
causing eye injury.
Required Materials
Seal Kit
2
1
4
5
3
TN3929, TN2144