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Craftsman 875.199800 Owner's Manual page 6

3/8-in. butterfly impact wrench
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Owner's
Manual
Model
No. 875.199800
Owner's
Manual
Model
No. 875.199800
Tool runs
slow or will
not operate.
1. Grit or gum in tool
1. Flush the tool with air tool oil, gum
solvent, or an equal mixture of SAE 10
motor oil and kerosene.
Lubricate the tool
after cleaning.
2. No oil in tool
2. Lubricate the tool according
to the
lubrication
instructions
in this manual.
3. Low air pressure
3a. Adjust the regulator
on the tool to the
maximum
setting (If applicable).
3b. Adjust the compressor
regulator
to tool
maximum
while the tool is running free
4. Air hose leaks
4. Tighten and seal hose fittings if leaks are
found.
5. Pressure drops
5a. Be sure the hose is the proper size.
Long hoses or tools using
large volumes of air may require a hose with
an I.D. of 1/2" or larger depending
on the
total length of the hose.
5b. Do not use multiple number of hoses
connected
together with quick connect
fittings. This causes additional
pressure
drops and reduces the tool power. Directly
connect the hoses together.
1. Lack of lubrication
1. Lubricate the air motor and the
Impacts slowly
or will not impact
2. Tool regulator set in
wrong
position
impact mechanism.
(See Lubrication
section of this manual)
2. Adjust the regulator on the tool to
the maximum
setting
3. In-line regulator
or
3. Adjust regulators in the air system
compressor
regulator
set too low
Impacts rapidly but
1. Worn impact
will not remove bolts mechanism
Does not impact
1. Broken impact
mechanism
1. Replace worn impact mechanism
components
1. Replace broken impact mechanism
components
Notes:
Moisture
blowing out
of tool
1. Water in tank
1. Drain tank. (See air compressor
manual).
Oil tool and run until no water is evident. Oil
tool again and run 1-2 seconds
2. Water in the air lines/
hoses
2a. Install a water separator/filter.
NOTE: Separators
only work properly when
the air passing through the separator
is
cool. Locate the separator/filter
as far as
possible from the compressor.
2b. Install an air dryer.
2c. Anytime water enters the tool, the tool
should be oiled immediately.
ENG-10
ENG-11

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