Power Fist 8957409 Manuel D'utilisateur page 11

V4.0
Hammer
operates
slowly.
Hammer's
performance
decreases
over time.
Excessive
noise or
rattling.
Hammer
overheats.
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120V 1,900 BPM SDS Demolition Hammer Kit
1. Forcing demolition hammer to
work too fast.
2. Extension cord is too long or
cord diameter is too small.
1. Carbon brushes worn or
damaged.
2. Bit is dull or damaged.
Internal damage or wear (carbon
brushes or bearings, for
example).
1. Forcing demolition hammer to
work too fast.
2. Bit is dull or damaged.
3. Blocked motor housing vents.
4. Motor is being strained by
long or small diameter extension
cord.
3. Turn off the demolition
hammer and allow it to cool.
Press the reset button on the
tool.
4. Have a technician service the
demolition hammer.
1. Allow the demolition hammer
to work at its own rate.
2. Do not use an extension cord.
If an extension cord is needed,
use one with the proper
diameter for its length and load.
1. Have a qualified technician
replace brushes.
2. Keep the bits sharp. Replace
as needed.
Have a technician service the
demolition hammer.
1. Allow the demolition hammer
to work at its own rate.
2. Keep the bits sharp. Replace
as needed.
3. Wear ANSI-approved safety
goggles and NIOSH‑approved
dust mask/respirator while
blowing dust out of motor using
compressed air.
4. Do not use an extension cord.
If an extension cord is needed,
use one with the proper
diameter for its length and load.
8957409
11