McCulloch MC1538ST - Manual (Page 21)

21
SERVICE AND ADJUSTMENTS
FIG. 22
00663
RE TAIN ING RING
WASH ERS
SQUARE KEY (REAR
WHEEL ONLY)
AXLE COVER
TO REMOVE WHEEL FOR REPAIRS
(See Fig. 22)
• Block up axle securely.
• Remove axle cover, retaining ring and washers to allow
wheel removal (rear wheel contains a square key - Do
not lose).
• Repair tire and reassemble.
• On rear wheels only: align grooves in rear wheel hub
and axle. Insert square key.
• Replace washers and snap retaining ring securely in
axle groove.
• Replace axle cover.
NOTE: To seal tire punctures and prevent fl at tires due to
slow leaks, tire sealant may be purchased from your local
parts dealer. Tire sealant also prevents tire dry rot and
corrosion.
TO AD JUST STEER ING WHEEL ALIGN-
MENT
If steering wheel crossbars are not horizontal (left to right)
when wheels are positioned straight forward, remove steer-
ing wheel and reassemble per instructions in the Assembly
section of this manual.
FRONT WHEEL TOE-IN/CAMBER
The front wheel toe-in and camber are not adjustable on
your tractor. If damage has occurred to affect the front
wheel toe-in or camber, contact your nearest authorized
service center/department.
TO START ENGINE WITH A WEAK BATTERY
(See Fig. 23)
WARNING: Lead-acid batteries gen-
er ate ex plo sive gases. Keep sparks,
fl ame and smoking ma te ri als away from
bat ter ies. Always wear eye pro tec tion
when around batteries.
If your battery is too weak to start the engine, it should be
recharged. (See "BATTERY" in the MAINTENANCE sec-
tion of this man u al).
If “jumper ca bles” are used for emer gen cy starting, follow
this pro ce dure:
IMPORTANT: YOUR TRACTOR IS EQUIPPED WITH A 12 VOLT
SYSTEM. THE OTHER VEHICLE MUST ALSO BE A 12 VOLT
SYSTEM. DO NOT USE YOUR TRACTOR BATTERY TO START
OTHER VEHICLES.
TO ATTACH JUMPER CABLES -
• Connect one end of the RED cable to the POSITIVE
(+) terminal of each battery(A-B), taking care not to
short against tractor chassis.
02614
WEAK OR DEAD
BATTERY FULLY CHARGED
BATTERY
FIG. 23
• Connect one end of the BLACK ca ble to the NEGA TIVE
(-) terminal (C) of fully charged battery.
• Connect the other end of the BLACK cable (D) to good
chassis ground, away from fuel tank and bat tery.
TO REMOVE CABLES, REVERSE ORDER -
• BLACK cable fi rst from chassis and then from the fully
charged battery.
• RED cable last from both batteries.
TO REMOVE HOOD AND GRILL ASSEMBLY
(See Fig. 24)
• Raise hood.
• Stand in front of tractor. Grasp hood at sides, tilt toward
engine and lift off of tractor.
• To replace, reverse above procedure.
01536
FIG. 24
HEADLIGHT
WIRE
CONNECTOR
HOOD
INTERLOCKS AND RELAYS
Loose or damaged wiring may cause your tractor to run
poorly, stop running, or prevent it from starting.
• Check wiring. See electrical wiring diagram in the
Repair Parts section.
TO REPLACE FUSE
Replace with 20 amp automotive-type plug-in fuse. The
fuse holder is located behind the dash.
ENGINE
TO AD JUST THROTTLE CON TROL CABLE
The throttle control has been preset at the factory and
ad just ment should not be necessary. If adjustment is
necessary, see engine manual.
TO ADJUST CARBURETOR
The carburetor has been preset at the factory and ad just ment
should not be necessary. However, minor ad just ment may be
required to compensate for differences in fuel, temperature,
altitude or load. If the carburetor does need adjustment,
see engine manual.