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d) Insert height adjustment pin into hole corresponding to desired cutting height
and install hairpin cotter. See decal on deck lift plate.
e) Move lever out of transport (or 5” (12.7 cm) cutting height) position and down
onto height
adjustment pin to mow at selected height.
f) To transport, move lever back up to transport (or 5” (12.7 cm) cutting height)
position.
g) Adjust anti-scalp rollers for Normal Operating Conditions. Stop engine, wait for
all moving parts to stop, and remove key. Engage parking brake. Place rollers
in one of the positions shown in Figure 11. Rollers will maintain 3/4 in. (19 mm)
clearance to the ground to minimize gouging and roller wear or damage.
For Maximum Deck Flotation, place rollers one hole position lower. Rollers
should maintain 1/4 in. (6.4 mm) minimum clearance to ground. DO NOT adjust
rollers to support the deck. Be sure bolt is tightened properly or loss of anti-
scalp roller may result. Torque the whizlock nuts on each end to 40-45 ft-lbs
(54-61 N-m).
FIGURE 11
4.2.2 Deck Leveling:
a) Position mower on a flat surface.
b) Stop engine, wait for all moving parts to stop, and remove key. Engage
parking brake.
c) Check tire pressure in drive tires. Proper inflation pressure for drive tires is
13 psi (90 kPa). Proper inflation for caster tires is 16 psi (110 kPa). Adjust if
necessary.
d) Set anti-scalp rollers to top holes or remove completely for this adjustment.
e) Lower the deck to the 1-1/2” (3.8 cm) height position. Place two 1-1/8”
(2.9 cm) thick blocks under the rear edge of the cutting deck skirt; one on each
side of the cutting deck. Place a 1” (2.5 cm) block under the center front edge,
but not
under the anti-scalp roller brackets.
f) Loosen the four (4) bottom chain bolts in slots until the deck is supported by
the blocks. Take the slack out of the chains and retighten the hardware.
g) Recheck that blocks fit just snugly under the deck skirt and that the tension on
all the chains is approximately equal. Make sure all chain attachment bolts are
tight.
h) Reposition anti-scalp rollers and tighten securely.
NOTE: When above adjustments have been made, the front of the deck will be
slightly lower than the rear of the deck.
4.2.3 Pump Drive Belt Tension
.
Self-tensioning - No adjustment necessary.