BigDog Series X, Общее руководство по обслуживанию

Страница: 39 / 41

108936BD_0812 10-1 REV E
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 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 fil-
ter Replace the fuel filter
Dirt, water or stale fuel in
the fuel system Contact your BigDog™
Mowers Dealer
The choke is not on Move the choke lever to
ON
Numerous See engine manual
Engine:
Runs with continuous
misfiring 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
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
hydraulic 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
Restrictions in air cleaner Service air cleaner
Hydraulic line blockage See your dealer
Internal interference or
leakage in wheel motor See your dealer
Air cooled engine
overheating
Air intake screen or cool-
ing fins clogged
Clean screen and fin
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 See your dealer
High oil consumption
Numerous See your dealer
Hydraulic system
operates hot (oil in
reservoir smells rancid)
Low hydraulic oil level Fill reservoir
Hydraulic pump faulty See your dealer
Hydraulic oil cooler
clogged Clean oil cooler 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 See your dealer
Tires improperly inflated Adjust air pressure to 8 -
12 psi (55-83 KPa)
Hydraulic pump faulty See your dealer
Mower creeps when
parking brake engaged
Steering linkage out of
adjustment Adjust steering linkage
Brakes need adjustment Adjust parking brakes
There is abnormal
vibration
The engine mounting
bolts are loose Tighten the engine mount-
ing bolts
The engine pulley, idler
pulley or blade pulley is
loose Tighten the appropriate
pulley
The engine pulley is dam-
aged Contact your BigDog™
Mowers Dealer
The cutting blade(s) is/are
bent or unbalanced Install new cutting
blade(s)
A blade mounting bolt is
loose
Tighten the blade mount-
ing bolt
Spindle bearing is worn or
loose Replace or tighten spin-
dle bearing
A blade spindle is bent Contact your BigDog™
Mowers 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
engaging Check and/or replace 15
amp fuse.
Contact your BigDog™
Mowers dealer
Uneven cutting height
The blade(s) are not
sharp Sharpen the blades
A cutting blade(s) is/are
bent
Install new cutting
blade(s)
The deck is not level Level the deck per the
Deck leveling and height
adjustment section of the
parts manual
An anti-scalp wheel is not
set correctly
Adjust the height of the
anti-scalp wheel
The underside of the deck
is dirty Clean the underside of the
deck
Tires improperly inflated Adjust air pressure to 8 -
12 psi (55-83 KPa)
A blade spindle is bent Contact your BigDog™
Mowers Dealer
SYMPTOMS PROBABLE CAUSES
SUGGESTED
REMEDIES