Maintenance
22
Adjusting Drive Chain Tension
Check the drive chain tension after every 25 operating
hours or once a year, whichever occurs first.
Adjustment as necessary to maintain proper tension.
1.
Disengage the power take off (PTO), set the
parking brake, and turn the ignition key to
“OFF” to stop the engine. Remove the key.
2.
Remove chain cover (Fig. 37).
3.
Adjust chain tension block so chain deflects
3/8”to 5/8” between sprockets (Fig. 37).
IMPORTANT: Do not overtighten chain or
excessive wear will occur.
4.
Install chain cover with (2) 1/4 x 1/2” bolts
(Fig. 37).
1
3
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2
4
Figure 37
1.
Chain cover
2.
Bolt 1/4 x 1/2”
3.
Chain
4.
Tension block
Replace Drive Belt
1.
Remove belt covers from tractor and
snowthrower (Fig. 38),
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1
2
Figure 38
1.
Belt cover–tractor
2.
Belt cover–snowthrower
2.
Remove hairpin cotters from trunnion and
bottom of yoke (Fig. 39).
3.
Unlatch and remove locking clevis pin that
secures yoke assembly to clutch shaft. Pivot
yoke out and forward to remove from clutch
shaft and engagement plate (Fig. 39).
4.
Remove snowthrower belt from pulley (Fig. 39).
5.
Assemble yoke and engagement plate and attach
locking clevis pin, trunnion and hairpin cotters
to secure (Fig. 39).
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1
2
3
4
1
7
6
5
Figure 39
1.
Hairpin cotter
2.
Trunnion
3.
Engagement plate
4.
Locking clevis pin
5.
Yoke
6.
Clutch shaft
7.
Pulley
