Section 100-0130
1
SM 1695 2-99
CHASSIS - Steering Trunnion
DESCRIPTION AND OPERATION
Numbers in parentheses refer to Fig. 1.
The steering trunnion (1) is a heavy steel casting
mounted on the main frame banjo housing with two
trunnion mounting pins (6).
Upper and lower king pins mounted in the trunnion,
connect scraper pull yoke to the tractor. Refer to
Section 280-0020, PULL YOKE.
Steering cylinders are mounted to the trunnion by pins
(13). Base assembly at rear of trunnion serves as a
mount for flow reversing valve. Refer to
Section 220-0010, STEERING LINES AND FITTINGS.
Stop block assemblies (11), prevent steering cylinder
pistons from bottoming when cylinder rods are
extended to their maximum strokes. Refer to Section
220-0010, STEERING LINES AND FITTINGS.
REMOVAL AND DISASSEMBLY
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.
1. Position the vehicle in a level work area, apply the
parking brake and switch off the engine. Operate the
steering in both directions several times to relieve any
pressure in the steering system.
2. Operate the treadle valve continuously relieve any
pressure in the braking system.
3. Block all road wheels and place battery master
switch in the 'Off' position.
Fig. 1 - Exploded View of Steering Trunnion
1 - Steering Trunnion
2 - Bushing
3 - Washer
4 - Washer
5 - Washer
6 - Pin
7 - Lube Fitting
8 - Nut
9 - Lockwasher
10 - Bolt
11 - Stop Block
12 - Bushing
SM - 2256
13 - Pin
14 - Bolt
15 - Lockwasher
16 - Nut
1
2
3
4
5
5
6
7
8
9
10
11
12
13
7
14
15
16
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