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SERVICE
SHEAR BOLTS - Main Drive
Shields Removed for Clarity
The beater and the apron drive are protected by
one shear bolt located on the front end of the side
drive shaft (left side of spreader). Two spare shear
bolts are provided. Shearing of the bolts is normally
due to foreign objects in the manure or starting
the spreader PTO too quickly with high tractor
RPMs. Always use H&S shear bolts when replacing
shear bolts.
Spare Shear Bolts
Shear Bolt
SHEAR BOLTS - Apron Drive
The worm gearbox and apron are protected by two shear
bolts. One on the driven high speed sprocket (A) and one
on the low speed sprocket (B). Two spare shear bolts are
provided (C). Shearing of these bolts is normally due to the
apron being frozen fast to the floor, or catching on frozen
"chunks." Occasionally the shear bolts will shear due to the
spreader being overloaded. Always determine the cause of
failure, and eliminate the cause before replacing the shear
bolt, using H&S shear bolts when replacing shear bolts.
NOTE: Normal apron speeds at 540 RPM are: low speed
4-1/2 fpm, high speed and clean out position 8-1/2 fpm. If
the apron is not moving at these speeds, especially in high
or clean out, check and replace the high speed shear bolt
A
B
C
(A). Failure to do so will result in serious damage to the
sprocket and shaft.
Shields Removed for Clarity
BEATER
When replacing beater paddles, the sharp edges of the teeth
must lead in the direction of beater travel. On the right half
of the beater the teeth must point to the right side of the
spreader. On the left half of the beater the teeth must point
to the left side of the spreader. Always use H&S special
grade 5 bolts, washers, and nuts when replacing. Torque to
60 foot lbs.
(Shown w/optional upper
beater for 3231/3237)
WHEEL BEARING LUBRICATION, CLEAN & RE-PACK INSTRUCTIONS
Wheel hubs are equipped with a grease zerk for regular maintenance. Annually disassemble and clean
parts in solvent. Reassemble bearings per instructions in the Service Chapter and tighten the castellated
nut on the spindle to the point where there is no end-play and a slight drag on the bearings. Replace the
cotter key with a new one of the correct size, bend cotter pin over and reinstall cap.
-23-
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