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12
Maintenance
MECHANICAL COMPONENTS
Prior to the operation of a new snowplow, or one
which has been stored, inspect all hardware
and verify proper torque on all bolts and nuts
in accordance with the recommended torque
specifications.
GRADE 5 TYPE B & F LOCK NUT
TORQUE VALUES
Diameter
Ft-lbs.
5/16"
3/8"
1/2"
5/8"
117-165
GRADE 5 BOLT TORQUE VALUES*
Size
Ft-lbs.
1/4"
3/8"
1/2"
73-103
5/8"
146-206
Loose bolts can cause hole elongation and
part failure resulting in dangerous operating
conditions and equipment breakdown.
Check all hardware periodically during operation
and keep tightened to specified torque values.
Replace worn bolts and lock nuts with grade 5
bolts and equivalent type B or type F lock nuts.
Type B lock nuts are plain hex; type F lock nuts
are flanged hex.
Inspect wear of cutting edges before every
plowing season and frequently throughout the
season. Replace the cutting edge before wear
reaches the main plow blade.
The 5/16" hex bolts in the latch sliders are factory
retained with anaerobic threadlock. If removal
or replacement of these bolts is necessary,
purchase new bolts with threadlocker from your
Hiniker dealer, or apply a commercially available
threadlock, i.e., Loctite 242 (blue) or Perma-Lok
HM118 (red), to standard 5/16-18 X 3/4" grade 5
hex bolts before reassembly.
N-m
13-18
17-25
23-33
31-44
58-82
79-112
158-223
N-m
8-12
11-16
29-41
39-56
99-140
198-279
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