Troubleshooting - Craftsman 875.198650 Owner's Manual

1/2-in. composite impact wrench
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Owner's
Manual
Model
No. 875.198650
Owner's
Manual
Model
No.
875.198650
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.
Use pipe thread tape where
possible.
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.
Impacts
slowly
or will not impact
1. Lack of lubrication
2. Tool regulator
set in
wrong
position
1. Lubricate
the air motor and the
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
1. Replace
worn impact
mechanism
will not remove
bolts
mechanism
components
Does not impact
1. Broken
impact
1. Replace
broken
impact
mechanism
mechanism
components
Notes:
Moisture
blowing
out
of tool
1. Water in tank
2. Water in the air lines/
hoses
1. Drain tank. (See air compressor
manual).
Oil tool and run until no water
is evident.
Oil
tool again and run 1-2 seconds.
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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