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604243 5-1 REV C
TROUBLESHOOTING
The majority of operating problems that occur with a system can be traced to improper adjustments or delayed service. A
consistently applied preventative maintenance program, as outlined in the Maintenance section of this manual, will prevent many
problems. The following chart is designed to help you locate a problem by suggesting probable causes and the recommended
solutions.
SYMPTOMS
PROBABLE
CAUSES
SUGGESTED
REMEDIES
Starting motor does not
crank Steering control levers not
in park brake position or
switch not adjusted Place steering control
levers in park brake posi-
tion or re-adjust switch
Deck clutch switch
engaged Disengage clutch switch
Weak or dead battery Recharge or replace
Electrical connections are
corroded or loose Check the electrical con-
nections
For additional causes See engine manual
The engine will not start,
starts hard or fails to keep
running No fuel or line plugged Fill tank or replace line (See
Fuel System section for
more details)
Fuel valve is turned off Open the fuel valve
There is incorrect fuel in the
fuel system Drain the tank and replace
the fuel with the proper type
There is dirt in the fuel filter Replace the fuel filter
Dirt, water or stale fuel in
the fuel system Contact your dealer
The choke is not on Move the choke lever to
ON
Numerous See engine manual
Engine:
Runs with continuous mis-
firing or engine runs
unevenly or erratically Numerous See engine manual
Loss of power or system
will not operate in either
direction Restrictions in air cleaner Service air cleaner
Hydraulic line blockage See your dealer
Internal interference or
leakage in wheel motor See your dealer
Insufficient hydraulic oil
supply Check level in reservoir
Have dealer check hydrau-
lic pump
Poor compression See your dealer
Steering linkage needs
adjustment Adjust linkage
Tow valve open Close tow valve
The traction drive belt is
worn, loose or broken Install a new traction drive
belt
Air in system Check filter and fittings
For additional causes See engine manual
Low engine oil pressure Low oil level Add oil
Oil diluted or too light Change oil and check for
source of contamination
Failed oil pump Contact your dealer
High oil consumption Numerous Contact your dealer
Mower jerky when starting
or operates in one direc-
tion only Steering control linkage
needs adjustment Adjust linkage
Pump or wheel motors
faulty Contact your dealer
Tow valves not closed com-
pletely Close tow valves
Hydraulic system oper-
ates hot (oil in reservoir
smells rancid) Low hydraulic oil level Fill reservoir
Hydraulic pump faulty Contact your dealer
Hydraulic oil heat
exchanger clogged Clean oil heat exchanger
core
Mower creeps when
steering control levers are
in neutral Steering linkage needs
adjustment Adjust linkage
Mower circles or veers in
one direction Steering linkage needs
adjustment Adjust linkage
Wheel motors faulty Contact your dealer
Tires improperly inflated Adjust air pressure to 8 - 12
psi (55 - 83 KPa)
Hydraulic pump faulty Contact your dealer
Mower creeps when park-
ing brake engaged Steering linkage out of
adjustment Adjust steering linkage
Brakes need adjustment Adjust parking brakes
There is abnormal vibra-
tion The engine mounting bolts
are loose Tighten the engine mount-
ing bolts
The engine pulley, idler pul-
ley or blade pulley is loose Tighten the appropriate pul-
ley
The engine pulley is dam-
aged Contact your dealer
The cutting blade(s) is/are
bent or unbalanced Install new cutting blade(s)
A blade mounting bolt is
loose Tighten the blade mounting
bolt
Spindle bearing is worn or
loose Replace or tighten spindle
bearing
A blade spindle is bent Contact your dealer
Blades do not rotate The deck drive belt is worn,
loose or broken Install a new deck drive belt
The deck drive belt is off
the pulley Install the deck drive belt
and check for a reason
Electric clutch is not engag-
ing Check and/or replace 10
amp fuse.
Contact your dealer
SYMPTOMS
PROBABLE
CAUSES
SUGGESTED
REMEDIES