Exmark Lawn Tractor Operator's Manual page 38

d) Insert height adjustment pin into hole corresponding to desired cutting
height and install hairpin cotter. See decal on the side of deck lift plate.
e) Move lever out of transport (or 4.5" (11.4 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 4.5" (11.4 cm) cutting
height) position.
g) Adjust anti-scalp rollers for Normal Operating Conditions. Place rollers in one
of the positions shown in Figure 10. 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 roller bolts and nuts are installed with hte spring disc washer
between the head of the bolt and the mounting bracket
5.2.2 Deck Leveling
a) Position mower on a flat surface.
b) Stop engine, wait for all moving parts to stop, and remove key.
c) Check tire pressure in drive tires. Proper inflation pressure for tires is 13 psi
(90 kPa). Adjust if necessary.
Check tire pressure in Caster tires. Proper inflation pressure for tires is 13
psi 90 kPa).
d) Set anti-scalp rollers to top holes or remove them completely for this
adjustment.
e) Raise the deck to the 4.5" (11.4 height position (also transport position) and
take all force off of the two large deck lift springs by loosening the nuts at
the front of each spring. See Figure 11.
f) Lower the deck to the 1-1/2" (3.81 cm) height position.
g) Place a 3/4" (19 mm) thick block of wood under each of the two (2) rear anti-
scalp roller brackets and place one under one of the front center anti-scalp
roller brackets.
h) Loosen the two (2) top chain bolts in slots in the rear deck lift arms. Loosen
jam nuts and back off the socket head adjusting screws on the bottom of the
arms until the chains are just loose. Turn the socket head adjusting screws in
until slack is taken out of each chain. Tighten the jam nuts. Tighten the chain
bolts in the deck lift arms making sure they don't move while tightening.
i) Loosen the four (4) nuts which secure the front swivels (two per side) until
the front chains are loose and front of deck is supported by the 3/4" (19 mm)
block. Do not loosen the front chain hardware.
FIGURE 10
ANTI-SCALP ROLLER ADJUSTMENT
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