Exmark Lazer Z SX Diesel Models 4500-501 Rev A - Manual (Page 25)

Operation
deck lift assist lever located at the front right
corner of the floor pan.
Note: When changing the cutting height
positions, always come to a complete stop
and disengage the PTO.
Figure 8
1. Lever in transport and 5 inch (12.7 cm) cutting height
position
4. Insert the height adjustment pin into the hole
corresponding to the desired cutting height and
install the hairpin cotter pin.
See the decal on the side of the deck lift plate for
cut heights.
5. Move the deck height lever out of the transport
position (or 5 inch (12.7 cm) cutting height) and
down onto the height adjustment pin to mow at
selected height.
Note: The foot operated deck lift assist lever
can be used to momentarily lift the deck to clear
objects. Be sure that PTO is disengaged.
Adjusting the Anti-Scalp Rollers
It is recommended to change the anti-scalp roller
position when the height of cut has changed.
1. Stop the machine and move the motion control
levers outward to the neutral locked position.
2. Disengage the PTO.
3. Engage the park brake.
4. Stop the engine, remove the key and wait for all
moving parts to stop.
5. After adjusting the height of cut, adjust the
anti-scalp rollers by removing the bolt and spring
disc washer.
6. Place the rollers in one of the positions shown
(Figure 9). Rollers will maintain 3/4 inch (19 mm)
clearance to the ground to minimize gouging and
roller wear or damage.
Figure 9
For cutting heights above 4.0 inches (102 mm) use the
bottom hole. The rollers will still be effective against
scalping.
1. Anti-scalp roller
mounting bracket 2. Cutting height
For Maximum Deck Flotation, place the rollers
one hole position lower. Rollers should maintain
1/4 inch (6.4 mm) clearance to the ground. Do
Not adjust the rollers to support the deck.
7. Be sure the roller bolts are installed with the
spring disc washer between the head of the bolt
and the mounting bracket.
Note: The foot operated deck lift assist lever
can be used to momentarily lift the deck to clear
objects. Be sure that PTO is disengaged.
8. Torque the 3/8–24 x 2 Gr 8 hex capscrew to
50–55 ft-lb (68–75 N-m) (Figure 10).
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