Exmark LAZER Z X Series Operator's Manual page 36

Operation
Adjusting the Side Bumpers
(Rear Discharge Units Only)
Mount the side bumpers in the top holes when
operating in height of cuts higher than 2 1/2 inches
(64 mm) and in the center holes when operating in
height of cuts lower than 2 1/2 inches (64 mm).
Note: When bumpers become worn, switch the
bumpers to the opposite sides of the mower, flipping
them over. This allows the bumpers to be used longer
before replacing them.
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. Position the transport lock in the latching
position.
6. Remove the bolts and nuts from each bumper.
Figure 21
1. Bolt
2. Bumper
7. Move each bumper to the desired position and
secure them with the bolts and nuts. Torque nut
to 10-12 ft-lb (14-16 N-m).
Note: Only use the top or center sets of holes to
adjust the bumpers. The bottom holes are used
when switching sides, at which time they become
the top holes on the other side of the mower.
3. Nut
Adjusting the Suspension Seat For
"B1", "B2", and "B3" Models Only
The suspension system adjusts to provide a smooth
and comfortable ride. Adjusting the rear two shock
assemblies is the easiest and quickest adjustment
for changing the suspension system. Position the
suspension system where you are most comfortable.
• Unlatching the Seat
• Adjusting the Rear, Shock Assemblies
The slots for the rear, shock assemblies have
detent positions for reference. The rear, shock
assemblies can be positioned anywhere in the slot,
not just the detent positions.
The following graphic shows the position for a
soft or firm ride and the different detent positions
(Figure 23).
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Figure 22