V1.0
1/2 in. Air Impact Wrench
8844474
Visit www.princessauto.com for more information
11
PROBLEM(S)
POSSIBLE CAUSE(S)
SUGGESTED SOLUTION(S)
Tool runs at
normal speed,
but loses power
under load.
Motor parts worn.
1. Have a qualified technician
service the tool.
2. Replace tool or parts.
Tool runs slowly.
Air flows slightly
from exhaust.
Motor parts jammed with
dirt particles.
OR
Airflow blocked by dirt.
1. Check air inlet filter for
blockage.
2. Pour air tool lubricating oil
into air inlet as per
lubrication instructions for
clearing shipping grease.
3. Operate tool in short bursts
to clear debris.
4. If tool still jammed, clean
tool and lubricate per
lubrication instructions.
Tool runs slowly.
Air flows slightly
from exhaust.
1. Air regulator in closed
position.
2. Damage or excessive
wearing of internal
parts.
3. Air motor is lacking
lubrication.
1. Open the air regulator to
desired airflow.
2a. Have a qualified
technician service the
tool.
2b. Replace tool or parts.
3. Stop use immediately and
add air tool oil directly to
the air inlet.
Tools will not
run. Air flows
freely from
exhaust.
Damage or excessive
wearing of internal parts.
1. Have a qualified
technician service the
tool.
2. Replace tool or parts.
Tool will not shut
off.
1. Throttle valve o-ring
dislodged from inlet
valve seat.
2. Trigger mechanism
jammed or dirty.
1. Replace throttle valve
o-rings.
2. Clean trigger mechanism
and lubricate.
