Grizzly G4179 owner manual Service, Troubleshooting, Symptom Possible Cause Possible Solution

Symptom

Possible Cause

Possible Solution

Motor will not start.

1.

Low voltage.

1.

Check power supply for proper voltage.

2.

Open circuit in motor or loose connections.

2.

Inspect all lead connections on motor and circuit

board for loose or open connections.

3.

Blown fuse tripped circuit breaker.

3.

Repair for cause of overload and replace fuse or

reset circuit breaker.

4.

Capacitor at fault.

4.

Replace capacitor.

5.

Motor switch or motor is at fault.

5.

Replace switch, or motor.

Fuses or circuit

1.

Short circuit in line cord or plug.

1.

Inspect cord or plug for damaged insulation and

breakers trip.

shorted wires and replace extension cord.

2.

Short circuit in motor or loose connections.

2.

Inspect all connections on motor for loose or

shorted terminals or worn insulation.

3.

Power feeder rollers are jammed.

3.

Disconnect all machinery from power and correct

for cause of jamming.

Motor overheats.

1.

Motor overloaded.

1.

Reduce power feeder feed rate.

2.

Air circulation through the motor restricted.

2.

Clean out motor fan cover to provide normal air

circulation.

Workpiece jams

1.

Rollers set too low.

1.

Raise feeder.

when feeding under

2.

Feeder at wrong angle.

2.

Adjust angle.

rollers.

Workpiece slips

1.

Rollers positioned too high, no traction.

1.

Lower feeder.

while passing

2.

Feeding too fast.

2.

Slow feed speed.

beneath rollers.

3.

Rollers are dirty or oily.

3.

Clean roller surface with a mild solvent.

4.

Worn roller(s).

4.

Replace roller(s) (Page 21).

Workpiece cut is

1.

Wrong feed speed.

1.

Adjust feed speed.

burnt.

2.

Cutter is at fault.

2.

Sharpen or replace dull blade or cutter.

Rough finish or

1.

Feed speed too fast.

1.

Slow speed.

chipped grain on

2.

Dull cutter or blade.

2.

Replace with sharp cutter or blade.

workpiece.

3.

Power feeder angle is not toed in to keep

3.

Adjust power feeder so it is toed-in 1° to 1.5°

workpiece against the fence.

toward the fence.

Fuzzy grain occurs

1.

Lumber has high moisture content.

1.

If moisture content is higher than 20%, sticker and

when planing or

allow to dry.

moulding.

2.

Dull knives/cutter.

2.

Sharpen or replace knives.

Workpiece hangs

1.

Power feeder roller height is set incorrectly.

1.

Lower the power feeder roller 1⁄8" lower than the

and does not enter

height of the workpiece.

the machine.

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Model G4179 1⁄2 HP Power Feeder