164
Trouble
Possible Reason
Trouble-shooting
Preheater smokes or throws
out flame
Fuel pump is maladjusted
Reduce fuel consumption
adjusting
pressure
reduction
valve of the fuel pump
Electric motor shaft speed
insufficient
Charge
storage
battery,
check motor
Engine is warmed continu-
ously, pre-heater burns irregular-
ly
Low fuel supply due to the
filter or injector clogging, faulty
sealing of fuel pipelines, fuel
pump maladjustment
Wash filters, injector, repair
fuel
pipelines.
Readjust
reduction valve of the fuel pump
Transfer Gearbox
Excessive noise
Insufficient quantity of oil in
transfer gearbox
Increased axial displacement
of primary and intermediate
shafts
Add oil up to the level of the
control plug
Adjust the bearings or re-
place by the new ones
Gears shift spontaneously
Gear shift fork or coupling is
worn out. The splines of the gear
shift coupling and primary shaft
are worn out
Replace worn parts
Engagement of gears and
locking of differential are ob-
scured
Burrs on gear splines, front
holder, shift coupling
Lock sticks
Grind surface of splines
Clean hole for ball
Driving Axles
Excessive axle noise
Contact pattern for bevel
gears is displaced towards tooth
narrow end edge
Adjust meshing at contact
pattern
Clearance in reducing gear
bearings
Restore preloads of the bear-
ings
Gear teeth working faces are
worn or damaged
Replace gears
Wheels and Tires
Intensive uneven wear of
tread pattern
Incorrect toe-in of wheels
Wheel hub and steering
knuckle king pin bearings are
incorrectly adjusted
Adjust tow-in of wheels
Adjust the bearings
Steering connection parts are
worn out
Replace the worn out parts
