Cleaning Under The Deck; Inspecting The Belts - Toro 74259 Operator's Manual

Figure 64
1. Transport position
6. Loosen four (4) top chain bolts in slots. Check the
length of the rod/swivel assemblies. Distance from
outside of rear swivel to outside of front swivel should
be 19-17/32 inch (496 mm) (Fig. 65). Make sure that
all four swivels move freely in holes.
1
3
Figure 65
1. 19-17/33 inch (496 mm)
outside swivels
2. Top chain bolt
7. If measurement is not 19-17/32 inch (496 mm) on each
side, adjust by turning nuts on either side of front
swivels.
8. Lift up on 4 top chain attachment bolts, in the slots, to
take slack out of chains and tighten flange lock nuts.
(Deck is still supported by two rear and one front
blocks under mower.)
9. If bolts contact the end of slots, shorten or lengthen
rod/swivel assemblies as required, for extra clearance,
adjust each side same amount.
Note: When properly adjusted, the front blade tip will be
slightly lower than the rear blade tip. See Checking for
Bent Blades on page 33 to measure.
1
2
m–4164
2. 2 inch (51 mm)
height-of-cut
4
2
m–3747
2
3. Front swivel
4. 10-1/4 inch (260 mm)
spring compressed
10. Recheck that blocks just fit just under the mower and
that tension on all four chains is approximately equal.
Tighten chain attachment bolts securely.
11. Measure height of cut. This can be checked with the
same procedure as Checking for Bent Blades on
page 33.
12. Install anti-scalp rollers for proper height-of-cut and
tighten securely.
Adjusting the Compression Spring
1. Raise deck lift lever to the transport position, (Fig. 64).
2. Springs are compressed so the distance between the
two large washers should be 10-1/4 inch (260 mm)
(Fig. 65).
3. Adjust by turning nut in front of each spring (Fig. 65).
Clockwise will shorten spring; counterclockwise will
lengthen spring.

Cleaning Under the Deck

Remove grass build up under deck daily.
1. Position mower on a flat surface. Stop the engine, set
the parking brake, remove the key and disconnect the
spark plug wire(s) from the spark plug(s).
2. Raise deck to the transport position.
3. Raise front of machine by using the Z–Stand. Refer to
Z–Stand operation on page 29.
Danger
Unit could fall onto someone and cause serious
injury or death.
Use extreme caution when operating unit on
Z–Stand.
Use only for cleaning deck and removing
blades.
Do not keep unit on Z–Stand for extended
periods of time.
Always shut engine off and set parking brake
before performing any maintenance to deck.

Inspecting the Belts

Inspect all belts every 100 hours.
1. Check belts for cracks, frayed edges, burn marks or
any other damage. Replace damaged belts.
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