IV - MAINTENANCE
21
FINAL DRIVE MAINTENANCE
CHAIN ADJUSTMENT
1.
Primary Chain Adjustment -
Place unit on stand or blocks so that the track is off the ground.
a)
Loosen track tensioner by undoing the tension nut
b)
Loosen all four 5/8 bolts in Figure 28.
c)
Chain adjustment can then take place
by using the two 3/8 bolts in Figure 28
which will slide the axle assembly to
the desired position. The chain should
have no more than .250 of slack at all
time. Track tension can be checked
by removing the foot plate.
d)
Once desired chain tension is
achieved, torque the four 5/8 bolts to 158 Lbs.
e)
Retighten track tensioner until desired track tension is reached –
NOTE:
A 180 lb person stepping on top of the track should give no more
than 1” of flex mid-span between the tension wheels and drive sprocket.
Figure 28 - 1350 Track Assembly
Figure 29 - 1350 Axle Assembly
3/8 bolt
5/8 bolt
IMPORTANT
If Chain Tension is Not
Maintained to Specification,
Chain Breakage Will Occur.
Tensioner
Tensioner Nut