Grizzly G0651 - Manual (Page 69)

model g0651/g0652 (mfg. since 1/10)
-67-
review the troubleshooting and procedures in this section to fix or adjust your machine if a problem devel-
ops. if you need replacement parts or you are unsure of your repair skills, then feel free to call our technical
support at (570) 546-9663.
SEcTION 8: SERVIcE
Troubleshooting
symptom possible Cause possible solution
motor does not
start. 1. switch disabling lock installed.
2. stop button not reset.
3. motor connection wired incorrectly.
4. Contactor not energized/has poor contacts.
5. Break or short in wiring; or loose
connections.
6. power supply switched off/has incorrect
voltage.
7. thermal overload relay in mag switch
tripped.
8. start capacitor has blown (g0651 only).
9. Centrifugal switch at fault (g0651 only).
10. machine wired out of phase (g0652 only).
11. phase converter (if used) wild wire connected
wrong (g0652 only).
1. remove switch disabling lock.
2. lift stop paddle and fully depress stop button with
your finger.
3. Wire motor correctly (refer to inside junction box
cover or manual).
4. test all legs for power, test field coil and replace if at
fault.
5. trace/replace broken or corroded wires; fix loose
connections.
6. switch power supply on/verify voltage.
7. allow relay/motor to cool. if necessary, press reset
button inside switch.
8. test/replace if at fault.
9. adjust/replace centrifugal switch.
10. swap two power incoming power leads (
page 18).
11. Connect wild wire to line without transformer or
sensitive electronics.
machine operates in
reverse. 1. power connections wired out of phase
(g0652 only).
1. swap two incoming power leads ( page 18).
machine has
excessive vibration
or noise.
1. slight blade wobble.
2. arbor nut is loose/obstructed by debris.
3. arbor pulley loose.
4. loose tilt handwheel.
5. Casting at fault.
6. motor fan rubbing on fan cover.
7. motor mounting loose.
8. Belt worn or damaged.
9. Belt(s) slapping cover.
10. pulley loose or not in alignment; shaft bent.
11. machine incorrectly mounted on floor.
12. arbor bearings at fault.
13. motor bearings worn or damaged.
1. use a blade stabilizer.
2. remove and clean, then tighten arbor nut.
3. retighten/replace arbor pulley with shaft and thread
locking liquid.
4. tighten the tilt handwheel lock knob.
5. trunnion/geared bearing housing is loose or cracked;
tighten or replace.
6. Fix/replace fan cover; replace loose or damaged
fan.
7. tighten mounting bolts/nuts; use thread locking
fluid.
8. replace Flat-belt (refer to page 81).
9. tighten belt(s).
10. replace worn pulley, key, and shaft, and realign.
11.level/shim base; tighten/adjust mounting hardware
or feet.
12. replace arbor housing bearings; replace arbor.
13. replace motor bearings or replace motor.