6K689
Page 21
1200rev5-20-03
Page 16a
SHEAR BOLT REPLACEMENT:
1. Examine the replaceable bushings in
the side plates for excessive
distortion.
The bushing in the right side plate
can be unbolted and rotated 180
o
or
replaced to provide a new square
shear edge. Also rotate or replace
the bushing in the left side to
provide
a square shear edge again.
2. Examine the shear bolt hole in the
shank for excessive distortion --
replace shank if needed.
3. Install a 3/4”-10 NC x 5” Gr. 5 bolt
and tighten to 155-210 ft.lbs.
4. Check the top (1”) shank mounting
bolt for tightness. Torque to 250
ft.lbs.
Excessive distortion of holes in the shear bolt bushings and/or shank ,as well as improper bolt
grade and length, can result in premature or improper bolt shearing in both types of shanks.
PLUG
ASSEMBLY
#8K367
BUSHING
#8K364
HHCS,
3/4-10 NC x 5”
LOCK NUT,
3/4-10 NC
HHCS,
1-8 NC x 4 1/2”
Lock Nut,
1-8 NC
(2) - HHCS, 5/16-18 X 1”
Lock Washer, 5/16”
Flat Washer 5/16” Std.
HHCS, 3/8-16 NC x 1 1/4”
Lock Washer, 3/8”
Flat Washer 3/8” Std.
REAR
PLUG ASSEMBLY
#8K367
BUSHING
#8K364
HHCS,
3/4-10 NC x 5”
LOCK NUT,
3/4-10 NC
HHCS,
1-8 NC x 4 1/2”
Lock Nut,
1-8 NC
(2) - HHCS, 5/16-18 X 1”
Lock Washer, 5/16”
Flat Washer 5/16” Std.
HHCS, 3/8-16 NC x 1 1/4”
Lock Washer, 3/8”
Flat Washer 3/8” Std.
