Ariens HYDROSTATIC S-12 - Brake Adjustment; Steering Gear Adjustment; Steering Stop Adjustment

tf the steering develops a wandering characteristic or if
excessive tire wear develops, the toe-in of the front wheels
should be checked. If the toe-in is incorrect, adjust as follows:
1. Loosen jam nuts A and B,' Figure 23.
2. Rotate tie-rod until toe-in is correct. Shorten tie-rod to
decrease toe-in. Lengthen it to increase toe-in.
3. Tighten jam nuts A and B after correct toe-in is obtained.
BRAKE ADJUSTMENT
The tractor brakes will require adjustment when the brake
pedal depresses over two inches. To adjust the brakes proceed
as follows:
1. Block up the rear of the tractor with the wheels off the
ground.
2. Remove the wheel lug nuts and remove the wheel.
3. Insert a screw driver in the slot in the brake drum (See
Figure 22) and tighten the star washer until the brakes are
snug and the drum does not turn. Back off the star washer
one full turn.
4. Replace the wheel and secure with the wheel lug nuts.
Repeat adjustment on the opposite wheel.
STEERING GEAR ADJUSTMENT
If excessive looseness is noticed in the steering system after
continued use, the steering gear may require adjusting to re¬
move excessive backlash between the gears. Adjust steering
gear using the following procedure:
1. Raise front of tractor so that the tires clear the ground.
2. Remove cotter pin identified in Figure 23.
STEERING STOP ADJUSTMENT
When making a full right hånd turn, the spindle arm
should contact the axie stop as shown in Figure 24. When
making a full left hånd turn, the left spindle arm should
contact the left axIe stop. Proceed as follows to adjust the
steering stops after checking toe-in.
1. R otate front wheels to the right until right spindle arm
contacts the axie stop, Figure 24.
2. R emove drag link rod end from steering arm, Figure 24,
and loosen jam nuts A.
3. L oosen jam nut C, Figure 23 and turn adjusting screw out 2a. Rotate steering wheel clockwise until steering gear bottoms.
(counter-clockwise) 172 turns. Back off 1/8-1/4 turn counter clockwise.
4. Tighten adjusting plug, Figure 23, to 10-14 ft. Ibs. of
torque.
5. Rotate adjusting plug out slightiy to align nearest slot in
the plug with the cotter pin ho|e and reinstall the cotter pin.
6. Hold jam nut and turn adjusting screw, Figure23,
clockwise (in) until backlash is removed from steering wheel.
DO NOT FORCE ADJUSTING SCREW. Torque jam nuts
36-45 ft. Ibs. while holding adjusting screw in position.
7. Turn steering wheel from lock to lock and check for
binding or dragging inside gearbox. If any binding or
dragging exists, it will be necessary to loosen the adjusting
screw and/or the adjusting plug slightiy until steering wheel
turns freely with no excessive looseness.
3. Rotate drag link as required while preventing the loose rod
end from turning until the stud is approximately 'k hole to
the rear of hole in steering arm, Figure24. Be sure axie stop
contacts steering arm.
4. Reinstall rod end stud in steering arm and tighten jam
nuts A.
5. Rotate wheels completely to the left. The left spindle
arm should contact left axie stop. If it does not, repeat step
2 and shorten drag links slightiy until both spindle arms con¬
tact their respective axie stops when making full turns in
either direction. The steering gear should not bottom before
the spindle arm contacts the axie stop.
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