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6 Reason and resolution
6.2 Driving
Problem
Reason
Solution
Unsatisfied hydraulic system control valve
performance
Unsatisfied electric switch of the forward
and backwards handle bar
Unsatisfied following system cylinder of the
pump
Inquire the company selling the
product or the fixed service
company.
Insufficient work oil
Add to the fixed amount of the oil
meter.
Driving in bad
manner
（
no moving when
shifting speed
）
Not Step on the accelerator pedal yet.
Step on the accelerator pedal.
Loose of universal joint and flange
installation bolt
Fasten.
Unsatisfied holding-on of the differential
gear
Adjust every gear of failure.
Wear and tear, damage of the gear of the
differential gear
Separate and check, then replace.
Abnormal sound
during driving
Damage of the bearing of the differential
gear
Separate and check, then replace.
Air fixed in the brake system
Exhaust.
Oil leak in the main cylinder piston
Inquire the company selling the
product or the fixed service
company.
Unsatisfied airproof of the brake system
Separate and check, then replace.
Unsatisfied driving
brake
Unsatisfied linkage and in-phase with the
micro drive
Adjust the micro drive cable line.
Lose of flexibility of the spring of the brake
pedal
Separate and check, then replace.
Unsatisfied drawing
back of the brake
pedal
Jam of the oil hole of the main cylinder
Inquire the company selling the
product or the fixed service
company.
Feeling light of the
brake pedal
Brake oil leak.
Check, replace and exhaust.
Unsatisfied
stopping brake
Wear and tear of brake block
Check and replace.
Oil leak of turning control valve
Inquire the company selling the
product or the fixed service
company.
Unsatisfied axes of the turning axis
Loose of the spline of the turning axis
Heavy to move the
steering wheel
Loose of the pin of the turning hydraulic
cylinder
Check and replace
Summary of Contents for KDD03
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