Mower Deck Maintenance; Leveling The Mower - Toro Z Master Z300 Operator's Manual

Mower Deck
Maintenance

Leveling the Mower

Important: There are only three measuring
positions needed to level the mower.
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 tire pressure of the rear tires. If needed, adjust
to 13 psi (90 kPa)
5. Place two thick blocks under rear left and right lower
edge of the mower deck so the weight of the deck
rests on the blocks.
6. Lower the mower to the 3 inch (76 mm) height-of-cut
position.
7. Loosen the bolts connecting the two chains and the
two rear brackets to the mower (Figure 52).
8. Adjust the two rear bolts so they are in the middle of
the slot located in the pivot bracket (Figure 52).
9. Adjust the bolts so the end of the bolt is flush with
the nut. This will allow the bushing to roll in the slot
in the mower deck bracket (Figure 51).
10. Adjust the discharge side front bolt so it is in the
middle of the slot located in the pivot bracket
(Figure 52).
11. Raise the mower deck and remove the blocks holding
up the mower deck.
12. Adjust the left front bolt in the pivot bracket so the
chain has no slack in it.
13. Inspect the four chains. The chains need to have
tension.
Note: When properly adjusted, the front blade tip
will be a 1/4 inch (6 mm) lower for 34 inch mowers
and 3/16 (4 mm) lower for 40 inch mowers than the
rear blade tip. Refer to Checking for Bent Blades for
the procedure to measure the blade tip height.
14. The right blade at the front position (Figure 54 or
Figure 55) needs to be the same height as the left
blade at the front position.
If there is more than an 1/8 inch (3 mm) difference
between left and right, then adjust the mounting
bolts in the slot to level the mower deck left to right.
Note: The mower deck cutting height can be
adjusted. Loosen the height of cut bracket and adjust
it forward or backward to get the correct height.
Tighten the bracket after the adjustment is made.
1. Keep the end of the bolt
flush with the nut
2. Rear pivot bracket
40
Figure 51
3. Nut
4. Bolt