Cub Cadet 977A - Manual (Page 15)

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• Remove the hex bolt from the rear of unit holding
the transmission to the mower housing.
See Figure 18.
Figure 18
• Tilt the transmission forward and loosen the idler
pulley bolt and lock nut half a turn. See Figure 19.
Figure 19
• Using a pair of pliers, pull back and rotate belt
keeper bracket from the slot on the idler pulley.
• Slide the belt out from between the belt keeper
bracket and the idler pulley.See Figure 19.
• Squeeze the belt together and push it forward,
while pressing the control arm inward towards the
deck and remove the six speed cable from the slot.
See Figure 20.
Figure 20
• Pivot the control arm down away from the pulley
and belt.
• Lift off the lower pulley assembly and remove the
old belt from around the crankshaft.
• Place the new belt over the transmission pulley.
Start the belt in the pulley groove and rotate the
pulley until the belt is seated in transmission pulley.
• Place the belt between the idler pulley and the belt
keeper bracket.
• Using pliers, rotate the belt keeper bracket so that it
snaps into slot on the idler bracket.
• Tighten the idler pulley bolt and lock nut half a turn.
• Place the belt between the two pulley halves on the
crankshaft. Make sure to route the belt inside the
belt guard pin. See Figure 21.
Figure 21
IMPORTANT: When replacing the belt, do not disas-
semble the lower pulley assembly.
• Pinch both sides of the belt together so that the belt
is not in the pulley groove, and the lower pulley can
be pushed towards the engine. See Figure 22.
Figure 22
• Pivot the control arm back to its original position
and reinstall the six-speed cable into the slot.
See Figure 23.
Cutting Height
Adjustment
Hex Bolt
Wheel
Wheel
Transmission
Belt Keeper
Bracket
Idler Pulley
Belt
Idler Pulley
Bracket
Transmission
Pulley
Bolt and
Locknut
Belt
Six-Speed
Control
Cable Slot
Arm
Belt
Belt
Tab
Guard Pin
Upper Pulley
Half
Lower Pulley
Half
Belt
Lower Pulley
Belt
Guard Pin
Half