Belarus 820 - Page 359

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