Yanmar YM155 - Page 153

8. STEERING AND SUSPENSION SYSTEMS
,-
2. Front alignment:
Faulty toe-in; faulty camber
angle; faulty caster' angle.
3. Rods:
Drag rods deformed; tie-rods
deformed;
pitman arm or knuckle
arm deformed.
4. Steering gear box:
Insufficient oil or grease.
Trouble
Readjust.
Add oil or grease
Probable cause Remedy
2
front tires.
1.
arm, tie-rods).
1. Tire pressure is too low.
Heavy steering.
Excessive play in
steering.
3.
king pin angles; tie-rod(s1 deformed. I
5.1 Steerins pulls to / 1. Front aliqnment: I
Adjust
2. Excessive up-and-down play in
kingpins.
3. Center pin worn excessively.
1. Front alignment:
Improper
toe-in, camber, or
-
one side.
5. Grease, insufficient.
1. Joints:
Excessive backlash in joints (gear
box,
pitman arm, drag rods knuckle
Front tire shimmy.
Replace.
Replace.
Readjust.
lmproper alignment (toe-in,
camber angle, caster angle).
2. Rods:
Pitman arm, drag rod(s1 knuckle
arms, or tie-rods bent or deformed.
Change
Adjust.
3. Tire pressure:
Different tire pressures in the
left and right wheels.
1. Faulty front hub bearings.
Readjust.
Correct or replace.
Correct or replace.
Adjust.
1 4. Implement fitted improperly.
/ Attach properly.
I
I I I front wheel securing bolts loose. I I
5. Road or surface conditions.
2. Center pin worn; center pin
I
Tighten or replace.
bracket loose.
6.
1. Front wheel hub bearings damaged;
Strange noises.
3. Looseness between rear wheel
hubs and splines; bolts securing
rear wheels loose.
Tighten or replace.
Tighten.