Chassis - Steering Trunnion
Section 100-0130
2
SM 1695 2-99
4. Separate scraper from tractor. Refer to
Section 280-0020, PULL YOKE.
5. Remove steering cylinders. Refer to
Section 220-0120, STEERING CYLINDER.
6. Attach suitable lifting equipment to steering trunnion
(1) before removing it from tractor frame.
7. Remove bolts (10), lockwashers (9) and nuts (8)
from steering trunnion (1).
8. Slide pins (6) out of the steering trunnion (1) bores.
9. When pins (6) are released, washers (5) will be free
for removal.
10. Remove steering trunnion (1) from the tractor
frame.
11. While removing steering trunnion (1), be careful
not to damage hydraulic lines, air lines and wiring.
WARNING
Make sure to use a soft drift and drive when
removing bushing, to prevent presonal injury
from flying chips.
12. If necessary, drive bushing (2) from steering
trunnion (1) with a soft drift and drive.
13. If necessary, remove lube fittings (7) from
mounting pins (6).
14. If necessary, remove washer (3) by breaking weld.
INSTALLATION AND ASSEMBLY
Numbers in parentheses refer to Fig. 1.
WARNING
To prevent personal injury and property
damage, be sure wheel chocks, blocking
materials and lifting equipment are properly
secured and of adequate capacity to do the job
safely.
Note: Tighten all fasteners, without special torques
specified, to standard torques listed in
Section 300-0080, STANDARD BOLT AND NUT
TORQUE SPECIFICATIONS.
1. If removed, install bushing (2) in steering trunnion (1).
2. If removed, position washer (3) on steering trunnion
(1) and weld as shown in Fig. 2.
3. Attach suitable lifting equipment to steering trunnion
(1) and position it on tractor frame.
4. While installing steering trunnion (1), guide hydraulic
lines, and hose containing air lines and wiring through
the opening in the steering trunnion (1). Be careful not
to damage lines and wiring during installation.
5. Install thrust washers (5) and mounting pins (6),
attaching steering trunnion (1) to tractor frame.
6. Check clearance at thrust washers (5) by forcing
the trunnion (1) rearward against the forward thrust
washer on each mounting pin (6). With the rear
washer on each pin positioned forward against the
tractor frame mount, measure the gap between the
rear washers and the trunnion. The gap should be
0.25 - 1.02 mm (0.010 - 0.040 inch). The standard
thrust washers used are 13.59 - 13.72 mm
(0.535 - 0.540 inch) thick. If the gap is more than
specified above when using standard thrust washers,
oversize thrust washers should be installed to obtain
the specified clearance. Oversize thrust washers,
14.48 - 14.73 mm (0.570 - 0.580 inch) and
16.00 -16.26 mm (0.630 - 0.640 inch) are available.
7. Secure mounting pins (6) with bolts (10),
lockwashers (9) and nuts (8).
8. If removed, install lube fittings (7) in mounting pins (6).
9. Connect scraper to tractor. Refer to
Section 280-0020, PULL YOKE.
10. Install steering cylinders. Refer to
Section 220-0120, STEERING CYLINDER.
SPECIAL TOOLS
There are no special tools required for procedures
outlined in this section. Refer to Section 300-0070,
SERVICE TOOLS, for part numbers of the general
service tools required. These tools are available from
your dealer.
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