HELI CQD16X1, Operation & Service Manual

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V. Troubleshooting
5.1 Transmission system
problem Possible cause Remedies
Loud noise of gears when
driving
too much clearance between
the gears
Adjust
much wear of the gears Replace
lower oil level in oil tank Add oil
Loud striking noise when
steering
too much clearance between
the gears
Adjust
much wear of the gears Replace
Leakage of the gear box
leakage in the plug Adjust or replace the gasket
seeping next to the monitor’s
axis
Replace o-ring
Seeping in the connecting
face of the connecting plate
and transmission box housing
Check the connecting surface
clearance and apply sealant
5.2 Steering system
problem Possible cause Remedies
No steering
no working of the steering
motor
Check and replace the power
supply line
no working of the turn angle
sensor
Check and replace the power
supply line
damage of the proximity
switch
Check if the clearance
between proximity switch
and sensing plate is smaller
than 5mm or change the
proximity switch.
no working of the steering
controller
Check the harness and replace
Loud noise of gears when
steering
too much clearance between
the gears
Adjust
much wear of the gears Replace
Inflexible operation of steering
system
Inequality of steering wheel
rotating
Adjust the hand wheel to make
it homocentric-ally with the
steering axis
5.3 Parking brake system
problem Possible cause Remedies
The parking brake can Low electricity supply Adjust the electricity supply