Grizzly G1005Z - Manual (Page 30)

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G1005Z Mill/Drill
Symptom Possible Cause Possible Solution
Machine has
vibration or noisy
operation. 1. Motor or component is loose.
2. Belts are slapping belt cover.
3. V-belt(s) is worn or is loose.
4. Motor fan is rubbing on fan cover.
5. Pulley is loose.
6. Machine is incorrectly mounted to the bench,
or the bench is uneven.
7. Chuck or cutter is at fault.
8. Motor bearings are at fault.
9. Spindle bearings at fault.
1. Inspect, replace for damaged bolts/nuts and retight-
en with thread locking fluid.
2. Replace/realign belts with a new matched set, and
retension belts (refer to Page 23).
3. Replace belts.
4. Replace/repair dented fan cover, and replace loose
or damaged fan.
5. Remove pulley, replace with key as required, and
re-install securely.
6. Make sure bench mounting hardware is tight; place
shims under machine.
7. Replace out-of-round chuck, replace or resharpen
cutter, use appropriate feed rate and cutting RPM.
8. Check bearings, replace motor or bearings as
required.
9. Replace bearing.
Symptom Possible Cause Possible Solution
M i l l i n g / d r i l l i n g
stops, but the
motor still oper-
ates. 1. The belt is loose or worn.
2. The pulley for the spindle shaft or the motor is
slipping on the shaft.
3. Drill bit slips in chuck.
1. Replace and/or adjust the belt.
2. To resecure the pulley:
a. UNPLUG THE MILL/DRILL!
b. Remove nut and slipping pulley.
c. Clean all dust, grit and debris from the pulley
arbor.
d. Warm the pulley and nut so that they slide back
onto the pulley arbor.
e. Tighten the nut.
3. Tighten bit; inspect bit for burrs or other obstructions
that might interfere with clamping surface.
Chuck, arbor or
tooling wobbles
or is loose on the
spindle shaft. 1. Foreign material is stuck between the arbor-to-
spindle mating surface.
2. Damaged tooling or chuck.
1. Remove the chuck and clean and de-burr the
tapered chuck and spindle mating surfaces, then
reassemble.
2. Replace.
The spindle does
not retract com-
pletely in the
uppermost posi-
tion or it binds. 1. The quill shaft is gummy with sawdust and oil.
2. The feed shaft return spring is weak.
3. The quill deflection screw is binding the quill.
1. Clean the gummy substance with penetrating oil and
lubricate with a light coat of oil.
2. Increase the feed shaft return spring tension as
described on Page 30.
3. Loosen jam nut, and slightly turn out screw where
the quill binds. Retighten jam nut and recheck for
binding and looseness at all spindle locations.
The quill has
excessive deflec-
tion. 1. The quill shaft is at fault.
2. The quill and/or bearings are worn. 1. Adjust the quill screw.
2. Replace the quill and/or bearings.
Operation