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REPAIR ADJUS
T$
LEAD-ACID BATTERIES GENERATE
EXPLOSIVE GASES. KEEP SPARKS,
FLAME AND SMOKING MATERIALS
AWAY FROM BATTERIES. ALWAYS
WEAR EYE PROTECTION WHEN
AROUND BATTERIES.
IDLE FUEL
ADJUSTING
NEEDLE
IDLE SPEED
ADJUSTING
SCREW
FIGURE 29
CASING
CLAMP
SCREW
MAIN FUEL
ADJUSTING
NEEDLE
STOP SCREW
SPEED CONTROL
THROllLE
CABLE
FIGURE 30
STOP
SCREW
FIGURE 30A
SPEED
LEVER
2
2O
1_ Starling your Tractor With a Weak Battery
If your battery is too weak to start the engine, it should be
recharged.. If '_umper cables" are used for" emergency
starting, follow this procedure.:
NOTE: YOUR TRACTOR IS EQUIPPED WITH A 12 VOLT
NEGATIVE GROUNDED SYSTEM THE OTHER VEHICLE
MUST ALSO BE A t2 VOLT NEGATIVE GROUNDED
SYSTEM
a. Connect each end of the RED jumper cable to the
POSITIVE(+) terminals of each battery (taking care
not to short against chassis). (Fig..28)
b Connect one endof the BLACK jumper cable to the
NEGATIVE (-) terminal of fully charged battery..
c Connectthe other endofthe BLACK jumpercable
to the L.H. side panel bolt(Fig, 14) NOTE: KEEP
AWAY FROM GAS TANK' AND BATTERY..
d. Disconnect cablesfin reverse order:
1. L../-/.side panel bolt (Fig I4)
2 Negative terminal of fully charged battery
3. Positive terminals
DO NOT USE YOUR TRACTOR BAT-
TERY TO START OTHER VEHICLES
Throttle Control Cable Adjustment
Never" attempt to change maximum engine speed._
This !s preset at the factory (3600 rpm +_75 [pm) and
should only be changed by a qualified service techni-
cian who has the necessary equipmenL
a.. Remove hood (Fig, 32)_
b._ Loosen casing clamp screw (Fig,. 30) until throttle
cable is free to move.
c, Move throttle control (on dashboard) to "FAST"
position_
d._ Pull throttle cable tight (until speed control lever
(Fig. 30A) is against stop screw (Fig., 30A). Re-
tighten casing clamp screw,.
REFER TO "'STARTING THE ENGtNE 'II]
PAGE 12
3, Carburetor Adjustment
Ingenerat, turning the adjusting needles (Fig_29) in (clock-
wise) decreases the supply of fuel to the carburetor_ This
gives a leaner fuel/air mixture, Turning the adjusting
needles (Fig. 29) out (counterclockwise) increases the
supply of fuel to the carburetor. This gives a richer fuel/air
mixture_ Setting the needles midway between the lean and
rich positions will usually give the best results,,
Adjust the carburetor as follows;
a.. With the en_Tinestopped, turn the idle fuel adjust-
ing needle m (clockwise) until it bottoms lightly.,
NOTE: The tip of the idle fuel and main fuel
adjusting needles are tapered to critical dimen-
sions_ Damage to the needles and the seats in
carburetorbody will result ff the needles are forced
b Preliminary settings.: Turn the adjusting needles
out (counterclockwise) from lightlybottomed_ .Turn
the idle 1-1/4 turns, turn the matn i turn.
c,. StartttTeengineandrunathalfthrottleforfivetoten
minutes to warm up.. The engine must be warm
before making final settings (Steps d, e, f, and g),.
d, Place the throttle into the 'last"position.,