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6
2
1 4,5
1.
Turnbuckle "A"
2.
Hex Nut
3.
Actuating Arm Assembly
4.
Clevis Pin
5.
Cotter Pin
6.
Frame strap
2.
Loosen hex nut and thread the turnbuckle "A"
inward or outward, so as to move the speed con¬
trol lever into the neutral position on the fender.
3.
Retighten hex nut and reassemble the clevis pin
and cotter pin and spread.
NOTE
If the tractor creeps while the speed control
lever is in neutral ("N"), the controls at the
hydrostatic transmission must be adjusted.
HYDROSTATIC TRANSMISSION CONTROL
ADJUSTMENT (1220 Tractor)
(See Figure 23)
t.
Block the rear of the tractor up so both rear
wheels are off the ground.
2.
Remove the cotter pin and clevis pin from turn¬
buckle "B" at actuating arm assembly. Loosen
hex nut.
3.
Thread turnbuckle "B" inward or outward one or
two turns.
4.
Reattach turnbuckle "B" to actuating arm
assembly with the clevis pin. Do not install cotter
pin at this time.
5.
Start the engine and run at idle speed.
6.
If rear wheels do not turn, turnbuckle "B" is
adjusted properly. If the wheels do turn, shut off
6 2
145
1.
Turnbuckle "B"
2.
Hex Nut
3.
Actuating Arm Assembly
4.
Clevis Pin
5.
Cotter Pin
6.
Frame strap
engine and readjust turnbuckle "B". Repeat this
operation until the wheels will not turn when the
speed control lever is in neutral ("N").
7.
Secure the clevis pin with the cotter pin.
8.
Remove blocks from under tractor and set the
speed control lever in neutral ("N").
9.
Start the engine, checking to see if the tractor
creeps. Repeat above adjustment if necessary.
PIVOT BAR ADJUSTMENT BOLTS
A
CAUTION
The tractor must be checked every 50 hours of
tractor operation for play between the front
axle and the pivot bar adjustment bolts. Both
adjustment bolt heads must fit against the
front axle. If play is discovered, the pivot bar
adjustment bolts must be adjusted.
If play is discovered between the front axle and the
pivot bar adjustment bolt heads, adjust both bolts as
follows: (See Figure 24.)
1.
Loosen jam nut 3 to 4 turns or as required.
2.
Turn pivot bar adjustment bolt counterclockwise
until it hits against the front axle.
3.
Tighten jam nut.
4.
Repeat the above steps for the other pivot bar
adjustment bolt.
16
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