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Grasshopper 721DT - Component Procedures

Grasshopper 721DT
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28
Fig. 9
IMPORTANT
CLUTCH REMOVAL /
REPLACEMENT
(Refer to page 42)
Remove anti-rotation bracket (item 19).
Using a 15/16 inch wrench, rotate the idler
arm (item 23) with idler pulley (item 30)
away from belts and remove drive belts
(item 37).
Unplug wires from clutch and remove cen-
ter bolt (item 18). Slide clutch off engine
crankshaft.
Reverse order to install new clutch.
Torque clutch bolt to 50 ft lbs. Run clutch
15 minutes, then torque to 50 ft lbs again.
CLUTCH / BRAKE BURNISHING
A new clutch, or one that has not
been used for three months, will
require burnishing to dress drive
surfaces. The clutch could fail if
you do not accomplish the follow-
ing procedure.
Place tractor in neutral, start engine and run
at fast idle. Turn clutch switch on 30 seconds
and off 30 seconds, ve times at half-throttle
and repeat ve times at full throttle. The time
interval allows the clutch surface to cool.
STEERING LEVER ADJUSTMENT
To adjust steering levers, loosen 3 prong
thumb nuts that secure the upper levers to
the lower. This allows the upper levers to
be moved backward (refer to Fig. 9). Set
levers to a comfortable position for the opera-
tor. Hold levers in position and tighten thumb
nuts. The levers must line up when in neutral
position and maintain a minimum of one inch
of clearance between end of levers.
1"
10132A
3 Prong
Thumb Nut
3 Prong
Thumb Nut
Rev. 06-16

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