Belarus 80.1 Operation Manual page 359

End of Table 7.8.1
Failure,
external manifestation, cause
Wrong FDA operation mode. FDA
is operating in positive mode
Improper wheel turning limit angle
Hammering in kingpin while moving (BELARUS 820)
Improper adjustment in kingpin
bearings
Hammering in FDA during abrupt wheel turning
Clearances in the steering link pins
and in steering hydraulic cylinders
Grease leakage through flange collar of master drive
Wear or damage of flange collar
Grease leakage through wheel gear groups' breathers
Increased oil level
Grease leakage through collar of driving gear of wheel gear group
Increased gap in gear bearings
Wear or damage of collar
Grease leakage through collar of the yoke of double cardan joint
Wear or damage of collar
Noise at wheel maximum turning angle
Check the engagement mode of FDA drive and set
the handle to "Off" or "Auto"
Check and adjust the FDA reduction unit turning
angle
Check and adjust axial preload in kingpin bearing
as indicated
Check and adjust
Replace the worn-out parts
Check and set a correct level
Check and adjust axial play in bearings of driving
gear of wheel gear group
Replace the collar
Replace the collar
359
80-0000010B OM
Troubleshooting