DAF 95XF. Manual — part 447
3
DIAGNOSIS
Clutch
6-4
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3
Drive shafts
DIAGNOSIS
7-1
7. DRIVE SHAFTS
7.1 FAULT-FINDING TABLE
FAULT: DRIVE LINE VIBRATION AT LOW VEHICLE SPEED
Possible cause
Remedy
Excessive universal joint angle (for example,
caused by excessive caster)
Check the universal joint angle
Play in universal joints
Replace universal joint
Play in centre bearing
Replace centre bearing
Play in sliding joint
Replace drive shaft
Forks not in line
Align forks
FAULT: DRIVE LINE VIBRATION AT HIGH VEHICLE SPEED
Possible cause
Remedy
Drive shaft imbalance
Balance or replace the drive shafts, if necessary
1
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3
DIAGNOSIS
Drive shafts
7-2
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3
ZF Intarder
DIAGNOSIS
8-1
8. ZF INTARDER
8.1 FAULT-FINDING TABLE
FAULT: NO BRAKE POWER
Possible cause
Remedy
Oil level too low
Check oil level
Intarder does not contain the specified oil
Check oil change
No pump pressure
Check system
No control pressure
Check system
No intarder pressure
Check system
FAULT: INSUFFICIENT BRAKE PRESSURE
Possible cause
Remedy
Oil level too low
Check oil level
Intarder does not contain the specified oil
Change the oil
Pump pressure too low
See system manual
Control pressure too low
See system manual
Intarder pressure too low
See system manual
FAULT: CONSTANT BRAKE POWER WHEN INTARDER IS SWITCHED OFF
Possible cause
Remedy
Oil level too high
Check oil level
Control pressure is independent of the position
of the control lever
Check system
FAULT: DELAYED RESPONSE
Possible cause
Remedy
Air supply absent/too low
Check air supply
Air supply intarder valve is not activated
Check system
Air supply intarder valve does not empty
accumulator in spite of activation
Check system
Idle pressure too low
Check system
1
ǹ 0002
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