NEC V28 0799-20 User Manual

Page of 15
4
5
FUNCTIONAL DESCRIPTION
1.  1/2" drive shank
2. Forward/Reverse 
switch 
3. Trigger 
4. Battery 
pack
5.  Battery pack release buttons
6.   Tool hanger 
7.  Tool hanger ring 
8.  7/16" hex quick-change chuck
Output rated at full speed
Impacts 
Per 
Minute
0 - 2450
0 - 2450
Cat.
No.
0779-20
0799-20
Average
Torque
Output*
325 ft-lbs.*
325 ft-lbs.*
Volts 
DC
28
28 
Specifi cations
Drive 
Shank
1/2"
7/16" Hex
No Load
RPM
0 - 1450
0 - 1450
Cat. No.
0779-20
0799-20
Quick Change Auger Bits
1-1/2"
1-1/2"
Drilling Capacities
Selfeed Bits
2-9/16"
2-9/16"
4
2
3
1
5
7
6
Symbology
Volts Direct Current
Impacts per Minute Under 
Load (IPM)
Underwriters Laboratories, Inc., 
United States and Canada
8
Cat. No. 0799-20
Cat. No. 0779-20
TOOL ASSEMBLY
 WARNING
Always lock trigger or remove battery 
pack before changing or removing 
accessories. Only use accessories 
specifi cally recommended for this 
tool. Others may be hazardous.
Attaching and Removing the Tool Hanger
1.   To attach, remove the two top gear case 
screws (Fig. 1). 
2.   Place the ring through the tool hanger. 
3.   Position the tool hanger on the tool over 
the two gear case screw holes.
4.   Replace the two gear case screws. 
Hand tighten the screws.
5. To 
remove, reverse the procedure.
Gear 
case 
screws
Ring
Fig. 1
Tool 
hanger
Attaching and Removing Accessories
(Cat. No. 0779-20)
This impact wrench is intended only for use 
with sockets designed for impact wrenches 
and that have a 1/2" square drive. Other 
sockets could shatter or break, causing 
injury. 
Fig. 2
Drive shank
Detent pin
 WARNING
U s e   o n l y   s o c k e t s   a n d   o t h e r 
accessories specifi cally designed for 
use on impact wrenches and drivers. 
Other sockets and accessories might 
shatter or break causing injury.
Removing Battery Pack from Tool
Push in the release buttons and pull the bat-
tery pack away from the tool.
Inserting Battery Pack into Tool
To insert the battery pack onto the tool,  slide 
the pack onto the body of the tool. Make sure 
it latches securely into place.
1.  For working in restricted spaces. 
Insert the battery pack from the front 
by pressing in the release buttons and 
sliding battery pack into the body of the 
tool. Insert the battery pack until clamp 
engages. 
2.  For optimum weight distribution and 
balance. Insert the battery pack from 
the back by pressing in the release but-
tons and sliding the battery pack into the 
body of the tool. Insert the battery pack 
until clamp engages.