Harbor Freight Tools 43378 operating instructions Troubleshooting, Symptom Possible Cause Solution

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Troubleshooting

SYMPTOM

POSSIBLE CAUSE

SOLUTION

 

 

 

 

- Incorrect spindle speed

- Change spindle speed

Drill bit burns or

- Dull drill bit

- Replace with new bit

smokes

- Drilling too slowly

- Drill faster

 

- Lacking lubrication

- Lubricate cutting area

 

 

 

 

- Belt tension set wrong

- Adjust belt tension

Makes unusual

- Spindle dry

- Lubricate spindle

noise

- Loose spindle pulley

- Check pulley nut

 

- Loose motor pulley

- Tighten Set screws

 

 

 

 

- Bent bit

- Replace drill bit

Drill bit wobbles

- Worn Spindle Bearings

- Replace spindle bearings

- Drill bit not in Chuck correctly

- Reinstall drill bit

 

 

- Chuck not properly installed

- Reinstall Chuck and Arbor assembly

 

 

 

Feed Handle

- Adjust Quill Spring

- Adjust Quill Spring. See page 11.

returns slowly, or

too fast

 

 

 

 

 

 

- Workpiece pinching drill bit

- Reposition workpiece, lubricate drill

Drill bit binds

- Dull drill bit

- Replace drill bit

- Feed pressure too hard

- Pull Feed Handle slowly.

 

 

- Belts loose

- Adjust motor and spindle belt tension

 

 

 

PLEASE READ THE FOLLOWING CAREFULLY

THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS DIAGRAM IN THIS MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER NOR DISTRIBUTOR MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER THAT HE OR SHE IS QUALIFIED TO MAKE ANY REPAIRS TO THE PRODUCT OR THAT HE OR SHE IS QUALIFIED TO REPLACE ANY PARTS OF THE PRODUCT. IN FACT, THE MANUFACTURER AND/OR DISTRIBUTOR EXPRESSLY STATES THAT ALL REPAIRS AND PARTS REPLACEMENTS SHOULD BE UNDERTAKEN BY CERTIFIED AND LICENSED TECHNICIANS AND NOT BY THE BUYER. THE BUYER ASSUMES ALL RISK AND LIABILITY ARISING OUT OF HIS OR HER REPAIRS TO THE ORIGINAL PRODUCT OR REPLACEMENT PARTS THERETO, OR ARIS- ING OUT OF HIS OR HER INSTALLATION OF REPLACEMENT PARTS THERETO.

Rev 07i

SKU 43378

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Contents For technical questions or replacement parts, please call Distributed exclusively by Harbor Freight ToolsRead all instructions before using this tool SpecificationsSafety Warnings and Precautions Save This ManualPage Rev Drill Press Safety Warnings and Precautions Vibration HazardUnpacking Assembly Head Assembly Screw B12 with a Hex Wrench Setting the Depth Scale to Drill to a Specified Depth Operation Tilting the Table Using the Depth Scale to Measure Depth While Drilling Locking the Chuck at a Specific Depth Adjusting the Feed Handle Return Quill Spring MaintenanceInstalling the Chuck and Arbor Removing the Chuck and ArborGeneral Maintenance Troubleshooting Symptom Possible Cause SolutionHead Assembly Parts List Head Assembly Drawing Pulley and Spindle Assembly Parts List Item # DescriptionPulley and Spindle Assembly Drawing Base and Table Assembly Parts List Base and Table Assembly Drawing