Grizzly T23091 - Manual (Page 13)

Model t23091 1 ⁄
4
" Air die grinder -11 -
troubleshooting
symptom possible cause solution
tool runs at
normal speed but
bogs down when
grinding, or tool
runs slowly with
little air exiting the
exhaust. 1. grinder is being overloaded.
2. tool adjustment at fault.
3. trigger or lock is bent and
binding the trigger.
4. intake filter screen is
clogged.
5. insufficient air supply volume
or pressure.
6. tool shank or collet insert
is worn, causing tool to slip
inside collet.
7. incorrect lubrication is
affecting tool.
8. Water is entering tool.
9. Air tool motor clogged with an
oil-water sludge.
1. reduce feed pressure; install a
new or a smaller diameter bit.
2. re-adjust the throttle valve
screw to the fully open
position.
3. Bend the trigger lock or trigger
back into position so the trigger
fully depresses the throttle
valve.
4. Clean the filter screen behind
the air supply fitting (see figure
1, on page 5).
5. set the regulator to 90 psi, or
100 psi if the air hose is longer
than 25 feet. repair any leaking
fittings, remove all restrictions
and hose kinks. ensure that all
hoses and lines have an inside
diameter of at least
3 ⁄
8
".
6. replace worn items. if cutting
wheel is used, verify mounting
arbor is tight.
7. Make sure tool is lubricated
correctly and does not run
dry. prevent oil from flooding
the air tool by re-adjusting the
automatic oiler.
8. service or reposition the air
filter water separator as far as
possible from the compressor.
this allows for maximum air
cooling and water condensation
for the water separator.
9. Clean or rebuild the air tool as
required, and correct moisture
or lubrication problem in the air
supply system.
section 6: service
important: air tool repairs must be completed by a qualified service person.