Exmark Lazer ZHP - Manual (Page 41)

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7. TROUBLE SHOOTING
7.1 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 compensate as neccessary
b) Check air pressure in tires; 13 psi/drive, 13 psi/ pneumatic castors.
c) Check reverse indicator and motion control linkage adjustment. See
Section 5.2.10 and 5.2.11.
7.2 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 leveling (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.
d) Check blades tip to tip for straightness (they should be within 3/16" or
one blade width from being in line.)
7.3 ENGINE WILL NOT START.
a) 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 5.2.5.
d) Make sure the parking brake is set and motion control levers are moved
out (neutral lock position).
e) Check that the blades are disengaged.
f) Check that the spark plug wires are properly connected.
g) Check for loose or faulty wiring connections.
h) Check for corrosion at all wiring connections. Even minor corrosion may
cause a faulty connection. Clean connector terminals thoroughly with
electrical contact cleaner, apply dielectric grease and reconnect.
NOTE: When disconnecting electrical connectors DO NOT pull on the
wires to separate the connectors.
NOTE: After carefully checking the above steps, attempt to start the engine.
If it does not start, contact your authorized Exmark service dealer.
IMPORTANT: It is essential that all operator safety mechanisms be
connected and in proper operating condition prior to mower use.
When a problem occurs, do not overlook the simple causes. For example,
starting problems could be caused by an empty fuel tank. The following table
lists some of the common causes of trouble. Do not attempt to service or
replace major items or any items that call for special timing of adjustments
procedures (such as valves, governor, etc.). Have this work done by
your Engine Service Dealer.