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Drill Master 91938, Owner'S Manual & Safety Instructions

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Drill Master 91938 Owner'S Manual & Safety Instructions Download Page 1

Cut-Off Wheel sold separately.

Visit our website at: http://www.harborfreight.com

Email our technical support at: [email protected]

REV 14i

Owner’s Manual & Safety Instructions

Save This Manual

 

Keep this manual for the safety warnings and precautions, assembly, 

operating, inspection, maintenance and cleaning procedures.  Write the product’s serial number in the 

back of the manual near the assembly diagram (or month and year of purchase if product has no number). 

Keep this manual and the receipt in a safe and dry place for future reference.

When unpacking, make sure that the product is intact 

and undamaged.  If any parts are missing or broken, 

please call 1-888-866-5797 as soon as possible.

Copyright

©

 2004 by Harbor Freight Tools

®

.  All rights reserved.  

No portion of this manual or any artwork contained herein may be reproduced in 

any shape or form without the express written consent of Harbor Freight Tools.  

Diagrams within this manual may not be drawn proportionally.  Due to continuing 

improvements, actual product may differ slightly from the product described herein.  

Tools required for assembly and service may not be included.

Read this material before using this product. 

Failure to do so can result in serious injury. 

SAVE THIS MANUAL.

Summary of Contents for 91938

Page 1: ...place for future reference When unpacking make sure that the product is intact and undamaged If any parts are missing or broken please call 1 888 866 5797 as soon as possible Copyright 2004 by Harbor Freight Tools All rights reserved No portion of this manual or any artwork contained herein may be reproduced in any shape or form without the express written consent of Harbor Freight Tools Diagrams ...

Page 2: ...FORMATION General Tool Safety Warnings WARNING Read all safety warnings and instructions Failure to follow the warnings and instructions may result in electric shock fire and or serious injury Save all warnings and instructions for future reference 1 KEEP GUARDS IN PLACE and in working order 2 REMOVE ADJUSTING KEYS AND WRENCHES Form habit of checking to see that keys and adjusting wrenches are rem...

Page 3: ...SECURE WORK Use vise to hold work when practical It s safer than using your hand and it frees both hands to operate tool 13 DON T OVERREACH Keep proper footing and balance at all times 14 MAINTAIN TOOLS WITH CARE Keep tools sharp and clean for best and safest performance Follow instructions for lubricating and changing accessories 15 DISCONNECT TOOLS before servicing when changing accessories such...

Page 4: ...The conductor with insulation having an outer surface that is green with or without yellow stripes is the equipment grounding conductor If repair or replacement of the electric cord or plug is necessary do not connect the equipment grounding conductor to a live terminal 4 Check with a qualified electrician or service personnel if the grounding instructions are not completely understood or if in do...

Page 5: ... Cut Off saw 14 Wear a full face shield over ANSI approved safety goggles during use 15 DO NOT OPERATE WITH ANY GUARD DISABLED DAMAGED OR REMOVED Moving guards must move freely and close instantly 16 The use of accessories or attachments not recommended by the manufacturer may result in a risk of injury to persons 17 When servicing use only identical replacement parts 18 Only use safety equipment ...

Page 6: ...d injuries nervous system disorders diabetes or Raynaud s Disease should not use this tool If you feel any medical or physical symptoms related to vibration such as tingling numbness and white or blue fingers seek medical advice as soon as possible 2 Do not smoke during use Nicotine reduces the blood supply to the hands and fingers increasing the risk of vibration related injury 3 Wear suitable gl...

Page 7: ...ameter 14 Recommended Cut Off Wheel Types 14 Cut Off Wheel for Metal Item 44814 sold separately 14 Cut Off Wheel for Masonry Item 44815 sold separately Cutting Capacity 4 1 4 Quick Release Vise Capacities 7 1st Setting 9 1 2 2nd Setting Arbor Size 1 250100 Setup Before Use Functions Base 13 Handle 100 109 Motor Housing 75 Vise Handle 28 Trigger 103 Lock Lock Ball 25 Depth Adjustment Bolt 16 Nut 15...

Page 8: ...ely before performing any inspection maintenance or cleaning procedures To Remove or Install a Cut Off Wheel 1 Raise the Saw if it is locked down by pushing down on it and pulling out the Lock Ball 25 2 Open the Swing Guard 53 and tighten the Bolt 112 to secure it while working on the Wheel 3 Push the Lock Pin 63 towards the Fixed Guard 60 as shown in Figure A Rotate the wheel until the Lock Pin 6...

Page 9: ...e wheel While holding the Lock Pin 63 tighten the Socket Head Bolt 54 with the Hex Key 111a 7 LOOSEN THE BOLT 112 and make sure that the Swing Guard 53 moves freely back into place before operation Depth Adjustment Note The Cutting Depth will need to be adjusted whenever a worn down wheel is replaced with a new one 1 Loosen the Nut 15 on the Depth Adjustment Bolt 16 shown in Figure D Depth Adjustm...

Page 10: ...the Quick Release 31 tab in the position shown in Figure E and push the Vise Handle 28 up against the workpiece Then tighten the Vise Handle 28 When releasing loosen the Vise Handle 28 a few turns lift up the Quick Release 31 and pull the Vise Handle 28 open Vise Handle 28 Place Workpiece Here Quick Release 31 Figure E Vise Components b To cut at various angles up to 45º adjust the Angle Scale 35 ...

Page 11: ...ase letting the Saw do the work Do not apply excessive force 5 If the cut off wheel does not cut all the way through the workpiece raise the Saw and release the Trigger Unplug the unit Wait until the unit comes to a full stop Remove the workpiece Set the depth adjustment to a deeper setting After adjusting the depth bring the Saw all the way down to make sure the cut off wheel doesn t contact the ...

Page 12: ... or cleaning procedures TO PREVENT SERIOUS INJURY FROM TOOL FAILURE Do not use damaged equipment If abnormal noise or vibration occurs have the problem corrected before further use Cleaning Maintenance and Lubrication 1 BEFORE EACH USE inspect the general condition of the tool Check for loose hardware misalignment or binding of moving parts cracked or broken parts damaged electrical wiring and any...

Page 13: ...needed use shorter heavier gauge cord See Extension Cords in GROUNDING section Performance decreases over time Carbon brushes worn or damaged Have qualified technician replace brushes Excessive noise or rattling Internal damage or wear Carbon brushes or bearings for example Have technician service tool Overheating 1 Forcing machine to work too fast 2 Accessory misaligned 3 Blocked motor housing ve...

Page 14: ... 67 Carbon Brush 68 Carbon Brush Cover 69 Bolt 2 M5x10 70 Cover 71 Bolt 2 M5x10 72 Screw M4x10 73 Lock Washer Part Description 74 Washer 75 Motor Housing 76 Spring 77 Binding Ring 78 Cross Pin 81 Binding Ring 82 Stator 83 Circle Block 84 Bearing 85 Armature 86 Bearing 87 Middle Cover 88 Bearing Ring 89 Binding Ring 90 Gear 91 Front cover 92 Bearing 93 Half Washer 96 Flange Washer 97 Nut M6 98 Bolt...

Page 15: ...Page 15 For technical questions please call 1 888 866 5797 Item 91938 Safety Operation Maintenance Setup 112 Assembly Diagram Note Hex Key 111a not shown ...

Page 16: ...so the above limitation of exclusion may not apply to you THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS To take advantage of this warranty the product or part must be returned to us with transportation charges prepaid Proof of purchase date and an explanation of the complaint must accompany the merchandise If o...

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