Service, Troubleshooting, Motor & Electrical | Grizzly G0673, G0671

SECTION 8: SERVICE

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.

Troubleshooting

Motor & Electrical

Symptom	Possible Cause		Possible Solution
Machine does not	1.	Plug/receptacle is at fault or wired	1.	Test for good contacts; correct the wiring.
start or a breaker		incorrectly.
trips.	2.	Motor connection wired incorrectly.	2.	Correct motor wiring connections.
	3.	Thermal overload relay has tripped.	3.	Turn cut-out dial to increase working amps and
				push the reset pin. Replace if tripped multiple
				times (weak relay).
	4.	Contactor not getting energized/has burnt	4.	Test for power on all legs and contactor operation.
		contacts.		Replace unit if faulty.
	5.	Power supply is at fault/switched OFF.	5.	Ensure hot lines have correct voltage on all legs
				and main power supply is switched ON.
	6.	Motor ON button or ON/OFF switch is at	6.	Replace faulty ON button or ON/OFF switch.
		fault.
	7.	Centrifugal switch is at fault.	7.	Adjust/replace the centrifugal switch if available.
	8.	Wiring is open/has high resistance.	8.	Check for broken wires or disconnected/corroded
				connections, and repair/replace as necessary.
	9.	Motor is at fault.	9.	Test/repair/replace.

Machine stalls or is	1.	Motor connection is wired incorrectly.	1.	Correct motor wiring connections.
underpowered.	2.	Plug/receptacle is at fault.	2.	Test for good contacts; correct the wiring.
	3.	Motor bearings are at fault.	3.	Test by rotating shaft; rotational grinding/loose
				shaft requires bearing replacement.
	4.	Motor has overheated.	4.	Clean off motor, let cool, and reduce workload.
	5.	Contactor not getting energized or has	5.	Test for power on all legs and contactor operation.
		poor contacts.		Replace if faulty.
	6.	Motor is at fault.	6.	Test/repair/replace.
	7.	Centrifugal switch is at fault.	7.	Adjust/replace centrifugal switch if available.

Machine has	1.	Motor or component is loose.	1.	Inspect/replace stripped or damaged bolts/nuts,
vibration or noisy				and re-tighten with thread locking fluid.
operation.	2.	Motor fan is rubbing on fan cover.	2.	Replace dented fan cover; replace loose/damaged
				fan.
	3.	Motor mount loose/broken.	3.	Tighten/replace.
	4.	Motor bearings are at fault.	4.	Test by rotating shaft; rotational grinding/loose
				shaft requires bearing replacement.
	5.	Centrifugal switch.	5.	Replace.

-38-	G0671/G0672/G0673 Dust Collector

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Grizzly G0673, G0671, G0672 owner manual Service, Troubleshooting, Motor & Electrical

Contents

Dust Collector Ss ,EAD from Leadbased PAINTS Table of Contents Foreword Functional Overview IntroductionContact Info Identification Machine Data Sheet Main Specifications Operational Information Performance Curve Model G0672 HP Dust Collector Main Specifications Operational Information CFM Model G0673 HP Industrial Dust Collector Main Specifications Operational Information Model G0673 HP Dust Collector !,7!93 53% !.3 !002/6%$$ 3!&%49 ,!33%33 7%. /0%2!4 !,7!93 53%3 %!2.2 02/4%#4/ %. /0%2!4.! -!#.%29 53%3!!2/5.$%$ %84%.3/..#/2$ 2!4%$4&/2/4%-!#.%!-0%2!%2 53%3 2%#/--%.$%$- !##%33/2%3 -!.9 -!#.%3 #!. %*%#4 7/2+0%#%3 4/7!2$ /0%2!4/2 !,7!93 ,/#+ -/,% !3%3 & 53%$ % %&/2% /0%2!4. -!#.%29# Additional Safety for Dust Collectors Circuit Requirements Operation Setup Setup SafetyItems Needed for Setup Unpacking Fasteners where used not shown Qty Contents Figures 7 QtyG0671/G0672 Inventory Contents Figures Qty G0673 Inventory Hardware Recognition Chart Assembly Placement LocationSite Considerations Floor Load Collector mounted to impeller Housing Upper filter bag secured to collector Page Test Run General Duct Material Designing SystemMetal Duct Flexible Duct Plastic Duct System Design Decide Who Will DesignSketch Your Shop Layout Sketch a Basic Duct Layout Machine Approximate Determine Required CFM of Each MachineMachine Determining Main Line Duct Size Determining Branch Line Duct SizeMultiple Dust Ports Two Machines on Same Branch Line Calculating Duct Resistance Duct Approximate DiaLoss Per Foot Additional Factors Static Pressure Loss Performance Curve System Grounding Operations Operation Safety Basic ControlsGeneral Accessories Metal Duct Starter Kit Reducers & Adapters Metal ElbowsH2443-9 1⁄2 x 6 Universal Adapter Maintenance Lubrication Bag CleaningSchedule Daily Check Troubleshooting ServiceMotor & Electrical Symptom Possible Cause Dust Collection Operation Wiring Electrical Safety Instructions G0671/G0672 Wiring Diagram Color KEY G0673 Wiring Diagram See Figure G0673 220V switch G0673 Electrical Components Parts G0671 Parts Breakdown G0671 Parts List Description G0672 Parts Breakdown G0672 Parts List G0673 Parts Breakdown G0673 Parts List Label Placement G0671 G0672 G0673 22!.49 #!2$ 99.$5342!, .# 0//88 %,,.!- 7! Warranty and Returns #ALL 4ODAYD&ORO! &2%%