Mower Deck Adjustments; Leveling The Mower; Preparing The Machine - Toro GrandStand 74534 Service Manual

Mower Deck Adjustments

Leveling the Mower

Preparing the Machine
1. Position mower on a flat surface.
2. Disengage the PTO, move the motion control levers
to the neutral locked position and set the parking
brake.
3. Stop the engine, remove the key, and wait for all
moving parts to stop before leaving the operating
position.
4. Check the tire pressure of both drive tires. If needed,
adjust to 13 psi (90 kPa).
5. Lower the mower to the 3" (76mm) height-of-cut
position.
Note: The actual cutting height will not be adjusted
until the deck has been leveled. Refer to
"Adjusting the Height of Cut" on page 7-52.
6. Check the distance between the swivels, measure
at the center of the swivels (center-to-center length)
on the threaded rod. This length needs to be 19-
1/2" (49.5cm) for 36" mower decks and 17-3/16"
(43.7cm) for 40" mower decks (Fig. 716).
7. Inspect the four chains. The chains need to have
tension.
8. If either rear chain is loose, the length of the
threaded rod on that side will need to be adjusted to
get equal tension on both rear chains.
9. Use the jam nuts at the front swivel to adjust the
length between front and rear swivels on that side
(Fig. 716).
36" & 40" Toro GrandStand Service Manual
MOWER DECK
10. If either front chain is loose, loosen the nut on the
upper chain bolt and the jam nut on the adjustment
bolt.
11. Use the adjustment bolt to get equal tension on both
front chains (Fig. 716).
12. Tighten the nut on the upper chain bolt and the jam
nut on the adjustment bolt.
E
F
G
H
Fig. 716
A. Measure here at the
center of the swivels
(cntr-to-cntr length)
B. Swivel jam nuts
C. Front swivel
A
B
C
B
D
fig. 83 G012739
D. Front chain
E. Rear chain
F. Adjustment bolt
G. Jam Nut
H. Upper chain bolt
7-49
7