Grizzly G0450 instruction manual About Service, Troubleshooting

Page 30

SECTION 7: SERVICE

About Service

This section is provided for your convenience—it is not a substitute for the Grizzly Service Department. If any adjustments arise that are not described in this manual, you need replacement parts, or you are unsure of how to perform the procedures in this section, then feel free to call our Technical Support line.

Troubleshooting

Symptom

Possible Cause

 

Possible Solution

Motor will not start.

1. Low voltage.

 

 

1. Check power line for proper voltage.

 

2. Open circuit in motor or loose connec-

2. Inspect all lead connections on motor

 

tions.

 

 

for loose or open connections.

 

3. Start capacitor at fault.

 

3. Replace start capacitor.

 

 

 

Motor will not start; fuses or circuit break-

1. Short circuit in line cord or plug.

1. Repair or replace cord or plug for dam-

ers blow.

 

 

 

aged insulation and shorted wires.

 

 

 

Motor fails to develop full power (output

1. Power line overloaded with lights, appli-

1. Reduce load on power line.

of motor decreases rapidly with decrease

ances, and other motors.

 

 

in voltage at motor terminals).

2. Undersized wires or circuits too long.

2. Increase wire sizes or reduce length of

 

 

 

 

 

the circuit.

 

3. General overloading of power company

3. Request a power check from the power

 

facilities.

 

 

company.

 

 

 

 

Motor overheats.

1. Motor overloaded.

 

1. Reduce load on motor.

 

2. Air circulation

through

the motor

2. Clean off motor to provide normal air

 

restricted.

 

 

circulation.

 

 

 

Motor stalls (resulting in blown fuses or

1. Short circuit in motor or loose connec-

1. Repair or replace connections on motor

tripped circuit).

tions.

 

 

for loose or shorted terminals or worn

 

 

 

 

insulation.

 

2. Low voltage.

 

 

2. Correct the low voltage conditions.

 

3. Incorrect fuses

or circuit

breakers in

3. Install correct fuses or circuit breakers.

 

power line.

 

 

 

 

4. Motor overloaded.

 

4. Reduce load on motor.

 

 

 

Drums run backwards (G0450 only).

1. Two of the power wires are reversed

1. Switch two of the current carrying wires

 

(G0450 only).

 

 

at the main power block (G0450 only).

 

 

 

 

 

Machine slows when sanding, making a

1. V-belts loose.

 

 

1. Tighten V-belts (Page 30).

squealing noise, especially on start-up.

2. V-belts worn out.

 

2. Replace V-belts (Page 31).

 

 

 

Loud repetitious noise coming from

1. Pulley setscrews or keys are missing or

1. Inspect keys and setscrews. Replace

machine.

loose.

 

 

or tighten if necessary.

 

2. Motor fan is hitting the cover.

2. Adjust fan cover mounting position,

 

 

 

 

tighten fan, or shim fan cover.

 

3. V-belts are defective.

 

3. Replace V-belts (Page 31).

 

 

 

Vibration when sanding.

1. Loose drum pillow bearings.

1. Tighten drum pillow bearings.

 

2. Worn drum pillow bearings.

2. Replace drum pillow bearings.

 

 

 

 

 

-28-

 

 

 

G0449/G0450 37" Drum Sander

Page 29 Page 31
Image 30
Page 29 Page 31
Contents Drum Sander Model G0449/G0450Page Table of Contents Service Introduction ForewordContact Info Machine Data Sheet Model G0450 Drum Sander Identification Front view, Model G0449Control Panel Control panel close-upSafety SafetyInstructions for Machinery Safety Instructions for Machinery Always Lock Mobile Bases if Used Before Operating MachineryAdditional Safety for Drum Sanders Circuit Requirements G0449 G0450 atG0450 at Power Connection Phase Converter With G0450Grounding Rewiring to Extension CordsItems Needed For Set Up SET UPSet Up Safety UnpackingInventory Figure Qty InventorySite Considerations ToolsComponents and Hardware Needed Qty Attaching Top CoverMounting Control Panel To attach the top cover to the drum sanderPlacing Sander Mounting to FloorTo mount the handwheel Installing HandwheelDust Collection To connect the dust ports to a dust collectorGear Oil Check Power CordTo connect the sander to the power source To check the gear oilRecommended Adjustments Test RunOperation Safety Depth of Cut OperationsTo set the depth of cut To adjust the conveyor speed Variable Speed SandingSanding Tips Choosing SandpaperGrit Class Usage Paper Replacement To change the paper Disconnect the machine from the powerTools Needed Qty Accessories PRO-STICKSanding PadSize Schedule MaintenanceCleaning LubricationWorm gear threads Service About ServiceTroubleshooting Reduce rear pressure roller pressure Belt Service Gauge BlocksTo make the gauge blocks Loosen To adjust V-belt tension Disconnect power to the sanderTo align the pulleys Disconnect power to the sander BeltsConveyor Tensioning Tracking To tension the conveyorTo track the conveyor Drum Adjustments To align the drums Disconnect power to the sanderPage Page Factory Setting Pressure RollerHeight Dust Scoop Position Setting Distance From Roller 160 4mmScale Pointer Calibration Tools Needed Qty Phillips Head ScrewdriverTable Lift Screws Conveyor Belt Replacement To replace the conveyor belt Disconnect power to the sanderTo Step To Step To Step G0449 Electrical Components Model G0449 Electrical panel G0449/G0450 37 Drum SanderG0449 Wiring Diagram G0450 220V 3 Phase Electrical Components G0450 back side of front panelG0450 220V 3 Phase Wiring Diagram G0450 440V 3 Phase Electrical Components G0450 440V back side of front panelG0450 440V 3 Phase Wiring Diagram Frame Parts Breakdown Frame Parts List DescriptionBreakdown Conveyor Parts List Roller Roller and Drum Parts List Phillips ScrewdriverWarranty and Returns Warranty Card CommentsGrizzly INDUSTRIAL, INC BOX BELLINGHAM, WAPage Call Today For a Free Full Color Catalog
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