47
Maintenance
Hydraulic Pump Drive Belt Replacement
1. Park the tractor 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. Raise the hood to gain access to the hydraulic pump
drive belts (A, Figure 51).
3. Loosen the jam nut (B) on the spring anchor eyebolt (C).
4. Loosen the nut (D) on the spring anchor eyebolt to
release the majority of the belt tension. Use caution and
remove the nut to completely release the tension.
4. Remove the old hydraulic pump drive belts and replace
with new ones. Make sure the V-side of the belt runs in
the grooves of the hydraulic pump pulleys (E) and the
engine drive pulley (F).
5. Reinstall the spring anchor eyebolt into the anchor tab
and loosely fasten the nut. Adjust the anchor eyebolt
until a coil-to-coil measurement of 7-1/4” (18,4 cm) is
achieved on the belt tensioner spring (G). See Figure 51.
Tighten the jam nut.
6. Close the hood and secure with the hood latches.
7. Run the mower under no-load condition for about 5
minutes to break-in the new belt.
Figure 51. Hydraulic Pump Drive Belt Replacement
A. Hydraulic Pump Drive Belts
B. Jam Nut
C. Spring Anchor Eyebolt
D. Nut
E. Hydraulic Pump Pulleys
F. Engine Drive Pulley
G. Belt Tensioner Spring
WARNING
STORED ENERGY DEVICE: Improper release of the belt
tension spring can result in personal injury.
Use extreme caution when removing this spring.
A
F
E
7-1/4”
18,4 cm
C
B
D
E
G
To Next Page
Loading...
Need help?
General
