NPK E Series - Torque Values for Hammer Fasteners

- 62 -
TORQUE VALUES FOR HAMMER FASTENERS
If hammer or hammer bracket fasteners are found to be loose, use the following chart.
If repairs are to be made, see the NPK Hydraulic Hammer Service Manual.
HAMMER
MOUNTING
*HAMMER BRACKET
**ADAPTER BRACKET
MODEL
STYLE
BOLT
BOLT
TORQUE
BOLT
BOLT
TORQUE
DIA.
ft. lbs.
(Nm)
DIA.
ft. lbs.
(Nm)
E200
Skid Steer
3/4"
290
(390)
5/8"
165
(225)
Excavator
3/4"
290
(390)
5/8"
165
(225)
E201
Skid Steer
3/4"
290
(390)
5/8"
165
(225)
Excavator
3/4"
290
(390)
5/8"
165
(225)
E202
Skid Steer
7/8"
450
(610)
5/8"
165
(225)
Excavator
7/8"
450
(610)
5/8"
165
(225)
E203
Skid Steer
7/8"
450
(610)
5/8"
165
(225)
Excavator
7/8"
450
(610)
5/8"
165
(225)
E204
Skid Steer
1"
500
(678)
5/8"
165
(225)
Backhoe (2 pc.)
1"
500
(678)
5/8"
165
(225)
Excavator
1"
500
(678)
5/8"
165
(225)
E205
Backhoe (2 pc.)
1"
500
(678)
5/8"
165
(225)
1-1/4"
1000
(1356)
5/8"
165
(225)
Excavator
1"
500
(678)
5/8"
165
(225)
1-1/4"
1000
(1356)
5/8"
165
(225)
E207
Backhoe (I pc.)
1-1/4"
1000
(1356)
N/A
N/A
N/A
1-1/2"
1250
(1695)
N/A
N/A
N/A
Excavator
1-1/4"
1000
(1356)
1"
500
(678)
* Torque hammer bracket bolts using anti-seize compound.
** DO NOT torque adapter bracket bolts using anti-seize compound.