Exmark Lazer ZCT manual ANTI-SCALP Roller Adjustment

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. Stop engine, wait for all moving parts to stop, and remove key. Place rollers in one of the positions shown in Figure 6. 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 6

ANTI-SCALP ROLLER ADJUSTMENT

4.2.2Deck 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 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)Raise the deck to the 4.5” (11.4 cm) height position and take as much force as possible off of the two large deck lift springs by loosening the nuts at the front of each spring. See Figure 7.

f)Lower the deck to the 1-1/2” (3.8 cm) height position. Place two 1-5/16” (3.3 cm) thick blocks under the rear edge of the cutting deck skirt; one on each side of the cutting deck. Place a 1-1/8” (2.9 cm) block under the center front edge, but not under the anti-scalp roller brackets.

g)Loosen the two (2) bottom chain bolts in slots at the rear of the cutting deck. Loosen four (4) nuts which secure front swivels (two per side), until front chains are loose and front of deck is supported by the 1-1/8” (2.9 cm) block. Do not loosen front chain hardware.

h)When hardware is loosened, remaining tension in the large support springs will tend to rotate the deck lift handle up, out of the 1 1/2” (3.8 cm) position. Press down on the rear deck support arm (as shown in Figure 7) to firmly return the deck lift handle to the 1 1/2” (3.8 cm) position. DO NOT push on deck lift handle. While continuing to press down, take the slack out of the rear chains and tighten hardware at the bottom of the rear chains. Downward pressure may now be released.

i)On left side, adjust front swivel using the locking nut behind the swivel until the front chain is tight and all slack is removed from linkage. Do not lift front of deck off 1-1/8” (2.9 cm) block. Secure front swivel using locking nut in front of swivel. Repeat for right side.

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