74
Trouble symptom and probable cause
Checking and remedy
(1) Hard steering, steering wheel doesn't return well
a. Insufficient lubrication of steering linkage mechanism
b. Improper alignment of front wheel
c. Improper toe in of front wheel
d. Improper camber and caster of king pin
e. Worn thrust bearing
f. Insufficient pressure of tire
(2) Abnormal worn tire
a. Improper position fix of front wheel
b. Improper pressure of front tire
a. Apply lubrication on king pin and ball stud
b. Adjust
c. Adjust
d. Check the linear for wear, and check knuckle and tie
rod for deviation, replace if necessary
e. Replace
f. Inflate properly
a. Adjust, and replace if necessary
b. Adjust, and inflate
5尧Front axle trouble shooting
HFC1048
series trucks
75
Trouble symptom and probable cause
Checking and remedy
渊3冤Vibrate oscillate
a. Improper position fix of front wheel
b. Worn king pin linear
c. Improper pretightening of hub bearing
d. Worn hub bearing
e. Loosen ball stud of tie rod
f. Loosen nuts on U-type bolt
g. Loosen hub nuts
h. Distorted wheel
i. Unbalance wheel
j. Wheel deviation
k. Asymmetry or insufficient inflation of tire
渊a冤front wheel location is wrong
渊b冤damage of the main bush
渊c冤the tight of wheel hub is wrong
渊d冤damage of wheel hub axle
a. Adjust, and replace if necessary
b. Replace linear
c. Adjust
d. Replace
e. Replace all end parts of tie rod
f. Tighten
g. Tighten
h. Replace
i. Adjust and balance
j. Adjust
k. Adjust, inflate
渊b冤replace
渊c冤adjust
渊d冤replace