NPK C2D - Before Operation; Decide if Swivel Lock Feature will be Used

NPK
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BEFORE OPERATION
DECIDE IF SWIVEL LOCK FEATURE WILL BE USED
The swivel lock bolts (AF) and washers (U) that are found on models equipped with the
swivel feature are factory assembled hand tight only. If using the swivel lock feature,
these bolts must be loosened then tightened to the specified torque below (also see the
“FASTENER TORQUE” section of the NPK Instruction Manual) before operating the
Compactor/Driver in the “fixed mode”.
TOP BRACKET
SWIVEL LOCK
MODEL
BOLT
TORQUE
DIA.
ft. lbs.
(Nm)
C2D, C2C, C2
N/A
N/A
N/A
C3D
1"
750
(1020)
C4C, C4B, C4A, C4
1"
750
(1020)
C6C, C6B, C6
1-1/4"
1350
(1830)
C8C, C8B, C8
1-1/4"
1350
(1830)
C10C
1-1/4"
1350
(1830)
C10
1-1/4"
1350
(1830)
C12C
1-1/2"
1500
(2035)
C12
1-1/4"
1350
(1830)
If these bolts are overtightened, the stick pin (m26s) and link pin (m25s) bores may
become misaligned. Loosen these bolts and torque to the proper value. Also, these
bolts must be installed on the stick pin side of the bracket or the link pin side of the
bracket. DO NOT install one at each pin side of the bracket.
When using a backfill attachment on a swivel style compactor, you MUST install the two
swivel lock bolts and washers shown above to ensure that the compactor will not swivel
during use. Failure to do this will result in damage to the compactor.