Grizzly G0554Z - Manual (Page 58)

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Model g0554z (Mfg 01/09+)
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 7: SERvicE
Troubleshooting
symptom possible Cause possible solution
Motor will not
start. 1. stop button not reset.
2. Main power switch is
OFF.
3. left side door is open and limit switch is
tripped.
4. Circuit breaker or fuse has tripped.
5. no voltage or open connection.
6. Capacitor is at fault.
7. spindle switch(es) are at fault.
8. Main power switch, stop button, or magnetic
contactor is at fault.
9. side door or foot brake limit switch is at fault.
10. Motor is at fault.
1. reset stop button.
2. turn the main power switch
ON.
3. Close and secure the left side door.
4. seek an electrician to troubleshoot and repair the
power supply.
5. test circuit, replace wires and connections as
required.
6. replace capacitor.
7. replace switch(es).
8. test/replace.
9. replace limit switch(es).
10. replace motor.
Fuses or circuit
breakers trip
open. 1. short circuit in line cord or plug.
2. short circuit in motor or loose connections.
3. incorrect fuses or circuit breakers in power
supply.
1. inspect cord or plug for damaged insulation and
shorted wires.
2. inspect all connections on motor for loose or shorted
terminals or worn insulation.
3. install correct fuses or circuit breakers.
Machine is loud;
V-belts slip
when cutting.
overheats or
bogs down in the
cut. 1. Excessive depth of cut.
2. spindle speed or feed rate wrong for
operation.
3. dull cutting tools.
4. V-belts are slipping.
1. decrease depth of cut.
2. set the proper spindle speed and feed rate
( page 40).
3. sharpen or replace cutting tools.
4. inspect/tension/replace V-belts.
gear change
levers will not
shift into position. 1. gears not aligned in headstock. 1. Maintain pressure on the lever and rotate spindle by
hand until gear falls into place.
loud, repetitious
noise coming
from machine
at or near the
motor. 1. pulley set screws or keys are missing or
loose.
2. Motor fan is hitting the cover.
1. inspect keys and set screws. replace or tighten if
necessary.
2. tighten fan or shim cover, or replace items.
Motor is loud
when cutting.
overheats or
bogs down in the
cut. 1. Excessive depth of cut or feed rate.
2. spindle speed or feed rate wrong for cutting
operation.
3. Cutting tool is dull.
4. Quick change gear setup is too tight, causing
them to bind.
1. decrease depth of cut or feed rate.
2. refer to rpM feed rate chart for appropriate rates.
3. sharpen or replace the cutting tool.
4. re-adjust the quick change gear setup with a small
amount of backlash so the gears move freely and
smoothly when the spindle is rotated by hand.
Motor & Gearbox