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Regular Maintenance
Hydraulic Pump Drive Belt Replacement
1. Park the unit on a smooth, level surface such as
a concrete floor. Disengage the PTO, engage the
parking brake, turn off the engine, and remove the
ignition key.
2. Remove the PTO drive belt (see PTO DRIVE
BELT REPLACEMENT for removal instructions).
3. Lower the mower deck to its lowest cutting
position.
4. Disconnect the PTO clutch wire harness.
5. Loosen and remove the crankshaft bolt (A, Figure
49) and the PTO clutch (B) from the engine
crankshaft.
B
A
C
Figure 49. Removing the PTO Clutch
A. Crankshaft Bolt
B. PTO Clutch
C. PTO Clutch Mounting Tab
11. Run the mower under no-load condition for about
5 minutes to break-in the new belt.
Check the Deck Drive Belt Idler Tensioner
Spring Length
1. Set the mower deck at it’s middle cutting height.
2. Measure the coil-to-coil length of the deck drive
belt tensioner spring length (A, Figure 48). It
should measure 7-1/4” (18,42 cm). If it does not,
perform the Adjusting the Deck Drive Belt Idler
Tensioner Spring Length procedure.
Adjusting the Deck Drive Belt Idler
Tensioner Spring Length
1. Loosen the jam nut (B) on the eyebolt (C).
2. Turn the adjustment nut (D) until a measurement
of 7-1/4” (18,42 cm) is achieved.
3. Tighten the jam nut.
Figure 48. Deck Drive Belt Idler Spring Length
A. Deck Drive Belt Idler Tensioner Spring Length
B. Jam Nut
C. Eyebolt
D. Adjustment Nut
A
B
C
D
7-1/4” (18,42 cm)
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