MTD TMO-33849A - Manual (Page 14)

LUBRICATION
1.
2 .
Spiral drive chain: Lubricate chain every 40
operating hours with No. 30 oil. It is important
that oil reaches inside each roller. Wipe off excess
oil from chain.
Pivot and friction points: To maintain smooth
and free operation, apply a few drops of No. 30
oil as required to all pivot and friction points.
The spiral and idler pulley bearings are self-lubricating.
However, periodic lubrication with No. 30 oil will
lengthen service life.
SPIRAL DRIVE CHAIN ADJUSTMENT
Periodically check spiral drive belt to insure that it is
properly adjusted. It is important to maintain proper
belt adjustment to obtain maximum belt life.
If belt is stretched beyond idler take up, replace with
a new belt of the type specified in parts list.
Excessive slack in spiral drive chain due to normal
chain stretch can be removed by adjusting spiral
housing nuts.
TO ADJUST SPIRAL CHAIN:
1. Disengage snow thrower and loosen the mounting
nuts 2 or 3 complete turns.
2. Tighten the adjustment mounting nuts to tighten
chajn.
BELT TENSION ADJUSTMENT
The idler bracket has three holes for belt tension
adjustment. As the belt stretches from normal wear,
more belt tension may be required. Check the idler
spring for wear against the drive shaft at least once a
season. If the idler spring is rubbing against the drive
shaft, the belt has stretched and must be adjusted.
Remove the idler pulley from the bracket, and
reassemble in next lower hole on the bracket.
STORAGE
At the end of the snow season the following steps
are recommended:
1. Remove snow thrower assembly from lawn tractor
tractor.
2. Wash off any salt deposit which may have dried
on the thrower and housing. Paint or cover
exposed metal with a light coat of oil.
3. Lubricate thrower following lubricating in­
structions for recommended lubricant. Thrower
drive chain must be oiled thoroughly to prevent
rust from forming. The preferred method is to
remove the chain and soak in oil for several hours
before reinstalling.
4. Store thrower in a dry place.
CAUTION
Do not over tighten chain. A correctly
adjusted chain will have a slight
amount of slack. An over tightened
chain will result in early failure of
chain.
3. Tighten mounting nuts to securechain adjustment.
Check chain clearance. It must clear chain guard
assembly. Test chain and repeat adjustment if
necessary until all excess slack is removed.
SHAVE PLATE AND SKID SHOES
Both the shave plate and skid shoes are subject to
wear and are designed to be easily replaced. Replace
before wear is excessive. Failure to do so will result
in damage to the spiral housing.
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