Toro Z Master Z597 Service Manual page 163

MOWER DECKS
17. Install the RH drive belt around the fixed idler
sheave. Insert a 3/8" drive ratchet with 6" extension
into the 3/8" square hole in the idler arm. Pull toward
the back of the machine to overcome the idler spring
tension. Slip the RH drive belt over idler pulley and
slowly release the idler arm (Fig. 442).
Note: Be sure the belt orientation is correct per Fig.
443.
7
1. Belt drive
2. Clutch
3. Spring loader idler
pulley
7-16
Fig 442 DSC-2648
Fig 443 fig. 74 m-7404
4. Adjustable idler pulley
5. Three stacked pulleys
6. Mower belt
18. Install the LH drive belt over the electric PTO clutch
and around the outer drive pulley.
19. Install the LH drive belt around the fixed idler pulley
only.
20. On the left, insert a 3/8" drive ratchet with a 12"
extension into the square hole in the idler bracket
(Fig. 444).
Fig 444
21. Pull back to relieve idler spring tension. Install the
mower drive belt on the spring loaded idler pulley
and the outer sheave of PTO pulley. Release the
idler arm slowly (Fig. 445).
Fig 445
Z Master 597 Diesel Series Service Manual
DSC-2650
DSC-2651