Trouble Shooting; Adjustments - Exmark Lazer Z Operator's Manual

and while applying slight pressure to the lever, allow the reverse indicator
spring to bring the levers back to neutral. The wheel must stop turning or
slightly creep in reverse.
NOTE: The motion control lever needs to be in neutral while making
any necessary adjustments.
The left rod assembly controls the left wheel and the right rod assembly
controls the right wheel.
i) Repeat on opposite side of unit. Tighten locknuts against ball joints.
j) Shut off unit. Remove jumper wire from
wire harness connector and plug connector
into seat switch.
5.2.15 Caster pivot bearings pre-load adjustment.
a) Remove dust cap from caster and tighten
nyloc nut until washers are flat and back
off 1/4 of a turn to properly set the
pre-load on the bearings. If necessary
make sure the spring washers are
reinstalled as shown in Figure 14.

6. TROUBLE SHOOTING

6.1 MOWER PULLS LEFT OR RIGHT (W/LEVERS FULLY FORWARD).
a) It is common for a machine to pull slightly left or right with levers
fully forward. Move levers forward and adjust as necessary.
b) Check air pressure in tires; 13 psi/drive, 13 psi/pneumatic castors.
c) Check reverse indicator and motion control linkage adjustment. See
section 5.2.13 and 5.2.14.
6.2 MOWER CUTS UNEVENLY.
a) Check air pressure in tires; 13 psi/drive, 13 psi/pneumatic casters. A more
uniform cutting height may be obtained with higher tire pressure on rough terrain.
A lower tire pressure provides more flotation. Higher pressures in front casters
may cause them to shimmy on hard surfaces.
b) Check deck support chains.
c) Check deck height adjustment (See Adjustments Section 5.2.2.)
Note: The front of the mower deck will be approximately 1/4" lower than the
back of the mower deck. This is the "rake" of the deck.
d) Check blades tip to tip for straightness (they should be within 3/16" or one
blade width from being in line.)
6.3 ENGINE WILL NOT START.
a) For all units except Kohler 26 HP EFI: Be sure the throttle control is midway
between the "SLOW" and "FAST" positions, and the choke is in the "ON" position
for a cold engine or the "OFF" position for a warm engine.
b) Make sure there is fuel in the fuel tank and that the fuel valve is open.
c) Operator must be in the seat. Be sure the seat switch is properly adjusted.
See Section 5.2.7.
CASTER ADJUSTMENT
- - 35
FIG. 14