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SKU 92798

For technical questions, please call 1-800-444-3353.

Page 8

serious drop in voltage, resulting in loss of power and possible tool damage.

(See Figure B.)

3.

The smaller the gauge number of the wire, the greater the capacity of the cord.
For example, a 14 gauge cord can carry a higher current than a 16 gauge cord.

(See Figure B.)

4.

When using more than one extension cord to make up the total length, make
sure each cord contains at least the minimum wire size required.

(See Figure B.)

5.

If you are using one extension cord for more than one tool, add the nameplate
amperes and use the sum to determine the required minimum cord size.

(See Figure B.)

RECOMMENDED MINIMUM WIRE GAUGE FOR EXTENSION CORDS*

(120 VOLT)

NAMEPLATE

AMPERES

(At Full Load)

EXTENSION CORD LENGTH

25

FEET

50

FEET

75

FEET

100

FEET

150

FEET

0-2.0

18

18

18

18

16

2.1-3.4

18

18

18

16

14

3.5-5.0

18

18

16

14

12

5.1-7.0

18

16

14

12

12

7.1-12.0

16

14

12

10

-

12.1-16.0

14

12

10

-

-

16.1-20.0

12

10

-

-

-

*Based on limiting the line voltage drop

to five volts at 150% of the rated amperes.

FIGURE B

6.

If you are using an extension cord outdoors, make sure it is marked with the
suffix “W-A” (“W” in Canada) to indicate it is acceptable for outdoor use.

7.

Make sure your extension cord is properly wired and in good electrical condition.
Always replace a damaged extension cord or have it repaired by a qualified
electrician before using it.

8.

Protect your extension cords from sharp objects, excessive heat, and damp or
wet areas.

Summary of Contents for 92798

Page 1: ...ight com Copyright 2005 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 For technical questions please call 1 800 444 3353 TO PREVENT SERIOUS INJURY READ AND UNDERSTAND ALL WARNINGS AND INSTRUCTIONS BEFORE USE ...

Page 2: ...a clean and well lit Cluttered benches and dark areas invite accidents 2 Do not operate power tools in explosive atmospheres such as in the presence of flammable liquids gases or dust Power tools create sparks UNPACKING When unpacking check to make sure all the parts shown on the Parts List on page 13 are included If any parts are missing or broken please call Harbor Freight Tools at the number sh...

Page 3: ...trician to install a polarized outlet Do not change the plug in any way Double insulation eliminates the need for the three wire grounded power cord and grounded power supply system 3 Avoid body contact with grounded surfaces such as pipes radiators ranges and refrigerators There is an increased risk of electric shock if your body is grounded 4 Do not expose power tools to rain or wet conditions W...

Page 4: ...otection must be used for appropriate conditions TOOL USE AND CARE 1 Use clamps not included or other practical ways to secure and support the workpiece to a stable platform Holding the work by hand or against your body is unstable and may lead to loss of control 2 Do not force the tool Use the correct tool for your application The correct tool will do the job better and safer at the rate for whic...

Page 5: ...s may create a risk of electric shock or injury SPECIFIC SAFETY RULES 1 Maintain a safe working environment Keep the work area well lit Make sure there is adequate surrounding workspace Always keep the work area free of obstructions grease oil trash and other debris Do not use the Impact Wrench in areas near flammable chemicals dusts and vapors Do not use this product in a damp or wet location 2 M...

Page 6: ...RNING People with pacemakers should consult their physician s before using this product Operation of electrical equipment in close proximity to a heart pacemaker could cause interference or failure of the pacemaker 11 Never leave the Charger 39 unattended when it is plugged into an electrical outlet Make sure to unplug it from its electrical outlet before leaving 10 Avoid unintentional starting Ma...

Page 7: ...UBLE INSULATED TOOLS TOOLS WITH TWO PRONG PLUGS 1 Tools marked Double Insulated do not require grounding They have a special double insulation system which satisfies OSHA requirements and complies with the applicable standards of Underwriters Laboratories Inc the Canadian Standard Association and the National Electrical Code 2 Double insulated tools may be used in either of the 120 volt outlets sh...

Page 8: ...e See Figure B RECOMMENDED MINIMUM WIRE GAUGE FOR EXTENSION CORDS 120 VOLT NAMEPLATE AMPERES At Full Load EXTENSION CORD LENGTH 25 FEET 50 FEET 75 FEET 100 FEET 150 FEET 0 2 0 18 18 18 18 16 2 1 3 4 18 18 18 16 14 3 5 5 0 18 18 16 14 12 5 1 7 0 18 16 14 12 12 7 1 12 0 16 14 12 10 12 1 16 0 14 12 10 16 1 20 0 12 10 Based on limiting the line voltage drop to five volts at 150 of the rated amperes FI...

Page 9: ...e tool See Figure D next page 2 Trigger 36 The Trigger is operated manually simply by squeezing the Trigger to turn on the Impact Wrench and releasing pressure on the Trigger to turn off the Impact Wrench See Figure D 3 Forward Reverse Switch 32 The Forward Reverse Switch allows you to change the rotational direction of the Impact Wrench For a clockwise rotation move the Forward Reverse Button to ...

Page 10: ... 1 hour charge time prior to using the Impact Wrench See Figure D 2 The Battery 37 should only be recharged when the Impact Wrench begins to run slowly See Figure D 3 When the Battery 37 requires recharging a 1 hour charge allows the tool to operate at full power Do not recharge the Battery longer than 1 hour as damage to the Battery and or Impact Wrench will occur See Figure D 4 Make sure the Tri...

Page 11: ... cool down before reusing See Figure D OPERATING INSTRUCTIONS 1 Before installing a socket make sure the Battery 37 is removed from the Impact Wrench to avoid accidental starting Then firmly insert the Socket onto the 1 2 Impact Head 7 of the tool See Figure D 2 Whenever possible secure the workpiece in place using a vise or clamps not included 3 Insert the fully charged Battery 37 into the handle...

Page 12: ...y be cleaned by rubbing them with a pencil eraser If cleaning and replacing used brushes try to install them in the same holders and in the same direction they were removed When installing the Carbon Brushes make sure the carbon portion of the Carbon Brushes contact the Motor s Rotor and that the springs face away from the Motor Also make sure the springs operate freely After replacement or cleani...

Page 13: ...r 23 Plate 4 Oilite Bearing 24 Washer 2 5 Rubber Washer 25 Stator 6 Plate Washer 26 Oilite Bearing 2 7 Impact Head 27 Carbon Brush Shaft 8 Impact Shaft 28 Brush Holder Cap 9 Bearing 1 29 Carbon Brush 10 Torque Spring 30 Brush Holder 11 Buffer Pad 31 Connector 12 Spring Pad 32 Forward Reverse Switch 13 Master Impact Driver 33 Right Body 14 Steel Ball 34 Left Body 15 Planetary Gear 35 Carrying Strap...

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