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HIGHWAY EQUIPMENT COMPANY
38
97373-A
Page Rev. B
LUBRICATION & MAINTENANCE CONTINUED
CONVEYOR CHAIN
Hose down unit and remove any material build-up on sprockets and under chain.
IMPORTANT!
The conveyor will move away from the bottom panel if material accumulates
under the conveyor or on the sprockets. The more material that accumulates,
the closer the chain will come to the chain shields. If the conveyor should catch
a chain shield, it could permanently damage the conveyor, the chain shields or
the unit. Do not remove material while conveyor or spinner is running!
Lubricate conveyor chain daily. Shut down spinner and run conveyor slowly to lubricate chain. Use a
mixture of 75% fuel oil and 25% SAE 10 oil in a pressurized hand spray gun. Spray oil mixture
between links of chain through openings provided at rear end of sill or from front outside body when
clearance is adequate. After each unit washing, allow to dry, then lubricate.
DANGER
Stay out of body when conveyor is running. Stay clear of all moving parts.
Entanglement of clothes, any part of your body or anything you have in
your hands can cause serious injury. Do not use a bar, rod or hammer on
conveyor while it is moving—if it gets caught it could cause injury!
If a chain oiler is used, fill oiler reservoir daily with a mixture of 75% fuel oil and 25% SAE 10 oil.
Before each filling of unit with material to be spread, open petcock and run conveyor until full length
of chain has been oiled, then shut petcock.
Proper chain tension is also a factor in chain and sprocket life (Figure 15). Measure from rear of unit
forward to achieve proper chain tension. Make sure chain is tensioned equally on both sides. This
adjustment is made on each side of the unit at the idler bearings.
Figure 9 - Adjusting Chain Tension
Conveyor chains that are too tight will tend to stretch, causing excess sprocket wear and eventually
breakage. Excess slack presents the possibility of chain catching on sub-frame parts. Bent or distorted
chain bars will cause damage as well. Straighten or replace bent or distorted chain bars immediately.
Chain Tension to be
Measured from Rear of
Sill – Proper Tension
36” to 40”