Cub Cadet PRO Z 772 L Operation Manual - Page 32

Replacing the Deck Belt, Replacing the Blades

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PRODUCT CARE Replacing the Deck Belt 1. Set the parking brake. Remove ignition key and both spark plug caps. 2. Remove the PTO belt (refer to Deck Removal). 3. To remove the belt covers (a), remove the wing knobs (b) from the carriage screws (c) securing it to the deck (Figure 60). To remove the blade: 1. Secure the blade from turning counterclockwise during service by placing a block of wood between the blade and the deck housing (Figure 62), or wrap a rag around one end of the blade and wear heavy gloves to grasp the blade firmly. a b c c Figure 62 2. Remove the flange lock nut (a) and flat washer (b) from the spindle shaft and remove the blade (c) (Figure 63). b Figure 60 4. The speed nut should hold the carriage screw (c) and tab bolt in place, if not re-install (Figure 60). 5. Using a 1/2" drive insert the end into the 1/2" square opening in the deck idler assembly (a) and rotate the deck idler assembly (a) clockwise (Figure 61). While holding the deck idler assembly (a), loosen the deck belt from the pulley and slide the belt away from the pulley. a Figure 61 CAUTION Avoid pinching injuries. Never place your fingers on the idler spring or between the belt and a pulley while removing the belt. a b c Figure 63 To replace or reinstall the blade: 1. Put the blade in place on the spindle shaft. Be sure to install the blade with the side marked "Bottom" or "Grass Side" (or with a part number stamped in it) facing the ground when the deck is reinstalled on the mower and in the operating position. 2. Carefully place the flat washer on the spindle shaft. Be sure that the splines at the base of the spindle shaft threads line up with the washer splines (Figure 64). 6. Route the new belt (Figure 61). Then reinstall the deck and PTO belt. Replacing the Blades WARNING Before cleaning, repairing, or inspecting, make certain the blade(s) and all moving parts have stopped. Turn off the engine, remove the key, disconnect the spark plug wire(s) and the negative battery cable to prevent unintended starting. Always wear safety glasses or safety goggles during operation and while performing an adjustment or repair to protect your eyes. 1. Remove the deck as instructed in the Deck Removal section. 2. For easier access, flip the deck over, then jack up the front of the deck about one foot and block it in that position. Figure 64 3. Secure the blade from turning clockwise when reinstalling the flange lock nut (the opposite direction of blade removal). 4. Install the flange lock nut onto the spindle shaft over the blade and flat washer. Torque to 100-130 ft-lbs (136-176 N-m). WARNING Never mow with dull blades. Blades that are bent should be replaced. The cutting blades are sharp and can cause severe injury. Wrap the cutting surface of the blade with a rag and wear heavy gloves to avoid injury. 32

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32
PRODUCT CARE
Replacing the Deck Belt
1.
Set the parking brake. Remove ignition key and both spark plug caps.
2.
Remove the PTO belt (refer to Deck Removal).
3.
To remove the belt covers (a), remove the wing knobs (b) from the carriage screws
(c) securing it to the deck (Figure 60).
a
b
b
c
c
Figure 60
4.
The speed nut should hold the carriage screw (c) and tab bolt in place, if not
re-install (Figure 60).
5.
Using a 1/2” drive insert the end into the 1/2” square opening in the deck idler
assembly (a) and rotate the deck idler assembly (a) clockwise (Figure 61). While
holding the deck idler assembly (a), loosen the deck belt from the pulley and slide
the belt away from the pulley.
a
Figure 61
CAUTION
Avoid pinching injuries. Never place your fingers on the idler spring or
between the belt and a pulley while removing the belt.
6.
Route the new belt (Figure 61). Then reinstall the deck and PTO belt.
Replacing the Blades
WARNING
Before cleaning, repairing, or inspecting, make certain the blade(s) and all
moving parts have stopped. Turn off the engine, remove the key, disconnect
the spark plug wire(s) and the negative battery cable to prevent unintended
starting. Always wear safety glasses or safety goggles during operation and
while performing an adjustment or repair to protect your eyes.
1.
Remove the deck as instructed in the Deck Removal section.
2.
For easier access, flip the deck over, then jack up the front of the deck about one
foot and block it in that position.
To remove the blade:
1.
Secure the blade from turning counterclockwise during service by placing a block
of wood between the blade and the deck housing (Figure 62), or wrap a rag
around one end of the blade and wear heavy gloves to grasp the blade firmly.
Figure 62
2.
Remove the flange lock nut (a) and flat washer (b) from the spindle shaft and
remove the blade (c) (Figure 63).
a
b
c
Figure 63
To replace or reinstall the blade:
1.
Put the blade in place on the spindle shaft. Be sure to install the blade with
the side marked “Bottom” or “Grass Side” (or with a part number stamped in
it) facing the ground when the deck is reinstalled on the mower and in the
operating position.
2.
Carefully place the flat washer on the spindle shaft. Be sure that the splines at the
base of the spindle shaft threads line up with the washer splines (Figure 64).
Figure 64
3.
Secure the blade from turning clockwise when reinstalling the flange lock nut
(the opposite direction of blade removal).
4.
Install the flange lock nut onto the spindle shaft over the blade and flat washer.
Torque to 100-130 ft-lbs (136-176 N-m).
WARNING
Never mow with dull blades. Blades that are bent should be replaced. The
cutting blades are sharp and can cause severe injury. Wrap the cutting
surface of the blade with a rag and wear heavy gloves to avoid injury.