Operation and Maintenance Manual for PowerKit 6M16 Series
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5.2.12 Excessive noise
Cause
Troubleshooting
(1)
The fuel is poor in quality
Replace the fuel
(2)
Coolant temperature is too low
Check the thermostat, and replace it when necessary
(3)
Injection nozzle has poor atomization
Check, repair and adjust
(4)
Vibration damper is worn or damaged
Check the damage, and connecting bolt, and replace the
damaged parts
(5)
Valve leaks or is adjusted inappropriately
Overhaul and adjust the valve
(6)
Excessive gear clearance or tooth fracture
Check and replace the damaged parts
(7)
Cylinder liner or piston is worn or piston
scuffing
Check and repair or replace
(8)
Push rod is bent or broken
Replace
(9)
Piston ring is broken or worn
Check or replace the damaged parts
5.2.13 Starter motor does not work
Cause
Troubleshooting
(1)
Fuse burnt
Replace the fuse
(2)
Poor contact of circuit
Check the circuit, and tighten the terminals
(3)
Insufficient charge of battery
Check, charge or replace the battery
(4)
Short circuit of starter motor
Inspect and repair the starter motor or replace the
starter assembly
(5)
Poor contact of electric brush
Clean or replace the electric brush
5.2.14 Starter motor is powerless
Cause
Troubleshooting
(1)
Battery is undercharged
Charge or replace the battery
(2)
Bearing bush is worn
Replace the assembly
(3)
Poor contact of electric brush
Clean or replace the electric brush
(4)
Commutator is dirty or burnt
Clean the oil stain. Polish the commutator by using
sandpaper, or replace the commutator assembly
(5)
Terminal unsoldered
Resolder
(6)
Poor contact of switch
Check and repair the switch
(7)
Clutch is worn or slipping
Adjust the operating torque of the clutch or replace the
clutch assembly
