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Common faults
Oil leakage from
the machine.
Motor does not
run when
powered on.
The electric pick
has a recoil failure.
overheating.
Abnormal
noise/no
rotation/slow
rotating speed
after powered on.
Made in China
Possible reasons
1. Add too much oil.
2. The type of grease added is wrong.
3. The inner sealing ring is damaged.
1. The connector is loose, or the switch
is in poor contact.
2. The carbon brush is used up.
3. The motor is burned out.
Add too much grease.
1. The voltage of power supply drops.
2. Overloading causes the motor
3. Unsharp bits.
4. Lack of grease.
1. A foreign matter is stuck or rubbed.
2. The switch contacts are burned out.
3. The drill bit jamming or touches the
steel bar.
Troubleshooting
1. Pour grease to an appropriate level.
2. Replace the grease typre according
to the model.
3. Send the machine to a professional
maintenance centre to replace the seal
rings.
1. Check whether the plug is loose or
not in good contact.
2. Check the carbon brush and replace
3. Repair or replace the motor.
Reduce the amount of grease.
1. Check whether the voltage is normal.
2. Reduce the load of motors.
3. Grind the drill bit.
4. Add appropriate amount of grease in
time.
1. Check whether there is foreign
objects entering the machine.
2. Check and replace the switch
contacts.
3. Check whether it touches the steel.
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