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Page 7SKU 31877 For technical questions, please call 1-800-444-3353.
SPECIFICATIONS
Motor 120 V~, 60 Hz, 7 A; 2100 RPM
Power 2400 BPM: 240 ft-lb Torque
Drive 1/2”
UNPACKING
When unpacking, check to make sure that the item is intact and undamaged. If any
parts are missing or broken, please call Harbor Freight Tools at the number shown on the cover
of this manual as soon as possible.
OPERATING INSTRUCTIONS
Read the ENTIRE IMPORTANT SAFETY INFORMATION section at the beginning
of this manual including all text under subheadings therein before set up or use
of this product.
General Guidelines
Use sockets designed for impact wrench use.
Do not use sockets with drives smaller than
1
/
2
”. You may use impact socket adapters to
use impact sockets with drives greater than
1
/
2
”.
Only use socket extensions designed for
impact use.
Pressing the top of the ROCKER SWITCH
(6) up will cause the ANVIL (16) to move in
a counterclockwise direction. This will com-
monly loosen the fastener.
Pressing the bottom of the ROCKER SWITCH down will cause the ANVIL to move in a
clockwise direction. This will commonly tighten the fastener.
“Breaking Loose” Fasteners
Note: This procedure is used when a fastener becomes “frozen”, typically due to corrosion.
This procedure assumes that the threads are standard (clockwise to tighten, counter
clockwise to loosen). If the threads are reversed, you must reverse the switch directions
contained herein.
Spray silicon or another appropriate lubricant on the fastener and allow it to sit for 15-30
minutes.
Rapidly press the ROCKER SWITCH (6) up and then down. This will cause the ANVIL
(16) change direction rapidly and loosen the bolt.
1.
2.
3.
4.
5.
1.
2.
230373230373
Figure 1 -- Operation
Rocker Switch
(# 6)
Anvil
(# 16)
Figure 1 -- Operation
Rocker Switch
(# 6)
Anvil
(# 16)