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Warning
Charging battery produces gasses that can
explode and cause serious injury.
Keep cigarettes, sparks and flames away from
battery.
Make sure the ignition switch is off.
Ventilate when charging or using battery in an
enclosed space.
Mower Leveling
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. Check tire pressure of all four (4) tires. If needed,
adjust to 13 psi (90 kPa)
3. Set anti–scalp rollers to top holes or remove them
completely for this adjustment.
4. Raise the deck to the transport position and take all
force off of the two large deck lift springs by loosening
nut in front of each spring (Fig. 52).
5. Place two 1-1/2" (38 mm) thick blocks under rear left
and right lower edge of mower. Place one 2–1/4" (57
mm) block under front center lower edge of mower.
Lower mower to the 2"
(51 mm) height-of-cut position (Fig. 52).
Figure 52
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" (496 mm) (Fig. 53). Make sure that all
four swivels move freely in holes.
7. If measurement is not 19–17/32" (496 mm) on each
side, adjust by turning nuts on either side of front
swivels.
1
2
m–4164
2. 2" (51 mm) height-of-cut
46
8. Lift up on four (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 30 to measure.
1
3
Figure 53
1. 19–17/32" (496 mm)
outside swivels
2. Top chain bolt
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
30.
12. Install anti–scalp rollers for proper height-of-cut and
tighten securely.
Compression Spring Adjustment
1. Raise deck lift lever to the transport position, (Fig. 52).
2. Springs are compressed so the distance between the
two large washers should be 11"
(279 mm) (Fig. 53).
3. Adjust by turning nut in front of each spring (Fig. 53).
Clockwise will shorten spring; counter–clockwise will
lengthen spring.
Belt Inspection
Inspect all belts every 100 hours.
1. Check belts for cracks, frayed edges, burn marks or
any other damage. Replace damaged belts.
4
2
m–3747
2
3. Front swivel
4. 11" (279 mm) spring
compressed
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