Troubleshooting - Husky H4440 Use And Care Manual

Troubleshooting

Problem
The tool runs slowly or will not
operate.
There is moisture blowing out
of the tool's exhaust.
The tool impacts slowly or not
at all.
The tool impacts rapidly, but
will not remove bolts.
The tool does not impact.
Possible Cause
There is grit or gum in the tool.
The tool is out of oil.
The air pressure is low.
The air hose leaks.
The air pressure drops.
There is a worn rotor blade in the motor.
There is a worn ball bearing in the motor.
There is water in the tank.
The tool needs lubricating.
The tool regulator setting is in the wrong position.
The tool has a worn impact mechanism.
The impact mechanism is broken.
Solution
Flush the tool with air tool oil or gum solvent.
Lubricate the tool according to the lubrication
instructions in this manual.
□ Adjust the regulator on the tool to the
maximum setting.
□ Adjust the compressor regulator to the tool's
maximum setting of 90 psi.
Tighten and seal the hose fittings with pipe thread
tape if leaks are found.
□ Ensure the hose is the proper size. Long
hoses or tools using large volumes of air may
require a hose with an I.D. of ½" or larger
depending on the total length of the hose.
□ Do not use a multiple number of hoses
connected together with a quick connect
fitting. This causes additional pressure drops
and reduces the tool power. Directly connect
the hoses together.
Replace the rotor blade.
Remove and inspect the bearing for rust, dirt, and
grit. Replace or clean and grease the bearing with
bearing grease.
Drain the tank. (See the air compressor manual
for instructions.) Lubricate the tool and run it until
water is not evident. Lubricate the tool again and
run for 1-2 seconds.
Lubricate the air motor and the impact mechanism
according to the lubrication instructions in this
manual.
Adjust the regulator on the tool to the maximum
setting.
Replace the worn impact mechanism components.
Replace the broken impact mechanism
components.
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