PREVOST X3-45 Multiplex - Page 923

TroubleshootingTroubleshooting
Instructions on Design, Operation, Maintenance and Inspection
43
2 Troubleshooting aid
Fault
Cause Remedial action
Noise Air in the oil
Oil level too low
Bleed steering system ¢
Top up with oil
Pump defective Repair ©
R
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p
l
a
c
e
©
R
e
p
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a
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©
Stiff operation to either side Oil level too low Repair leakage
Top up with oil ¢
Steering system is sucking in air
(Suction area)
Repair leakage
Top up with oil ¢
Bleed steering system £
Universal joints/steering column
Stiff operation
Check
Replace ¡
Oil filter soiled Replace ¢
Steering gear defective Repair ©
R
e
p
l
a
c
e
©
R
e
p
l
a
c
e
©
Pump defective Repair ©
R
e
p
l
a
c
e
©
R
e
p
l
a
c
e
©
Stiff operation in one direc-
tion
Incorrect setting of
steering limitation
Set ¢
Steering gear defective Repair ©
S
t
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r
i
n
g
g
e
a
r
d
e
f
e
c
t
i
v
e
R
e
p
a
i
r
©
Replace
Stiff operation during fast
steering motion
Steering system is sucking in air
(Suction area)
Repair leakage
Top up with oil
B
l
e
e
d
s
t
e
e
r
i
n
g
s
y
s
t
e
m
¢
B
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s
t
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r
i
n
g
s
y
s
t
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m
¢
Pump defective or wrong version Replace pump ©
¡ see vehicle manufacturer’s instructions
© approach ZF Service Centre
¢ see Chapter III.