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track lining or idle wheel on elevating body, through tightening some relative bolts to adjust
it to proper gap.
Problem
Motor doesn't run When
connecting Power supply.
Heavy sparks and ring
Sparks occur
on Commutator of motor.
Drill vibrated.
Drill speed is slow.
TROUBLE SHOOTING INSTRUCTION
1.Power supply
disconnected.
2.Switch breaker positioned.
3.Brush ill contacting or use
up.
4.The winding of stator &
rotor circuit open.
1.Rotor winding is on short
circuit or open circuit.
2.Brush spring positioned
Improperly or ill contacting.
3.Commutator worn seriously.
1.The base fixed loosened.
2.The gap between elevating
body and square rack
largened.
3.Elevating body and
connecting bolts loosened.
1.Drill bit worn.
2.Ceiling pouring quality is
bad, there are grits or chips in
gap.
3.Drill vibrated.
4.The nuts on the safety
friction.
Reason
15
Solution
1.Check and connect power
supply.
2.Check and repair switch
or replace improperly or ill
contacting switch.
3.Replace electric brush.
4.Check or replace stator &
rotor open circuit.
1.Repair or replace rotor.
2.Adjust the spring
pressure.
3.Replace a new rotor.
1.Reassemble and fix the
frame.
2.Adjust the gap.
3.Check bolt.
1.Repair or replace drill bit.
2.Stop the drill, remove the
foreign materials from gap.
3.Adjust and tighten
connecting bolt.
4.Tightening nuts clutch
loosened.
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