Ariens 936027 (Sierra 1640H Twin) Specifications download pdf (Page 23)

Adjustments (Continued)

Steering

• If looseness is noticed in steering system, check

hardware for tightness and wear points for

excessive wear. (Replace as needed.)

• Proper front wheel toe-in is necessary to assure

proper steering and to reduce tire wear. Proper

toe-in is when front of wheels are 1/16” to 1/8”

closer together than rear of wheels (measured at

horizontal center line of rim flange).

• If tractor wanders or excessive tire wear

develops, toe-in should be checked. To correct

toe-in, loosen jam nuts at tie rod ends, turn tie

rod clockwise to decrease or counterclockwise to

increase toe-in and tighten jam nuts.

Neutral Adjustments (Gear)

• Move speed selector so that transmission is in

neutral. Remove one of the spring loaded ball

joints and adjust link in or out to position the

speed selector at neutral (N) in shift quadrant

located on right side of rear deck. Removal of

left rear tire may be helpful.

Hydro Neutral Adjustment

• If unit continues to roll even when foot pedal

is not depressed adjust neutral.

• With right rear wheel off ground, turn neutral

adjustment bolt in or out to stop the wheel from

rotating.

• Springs for forward and reverse can be

positioned in upper hole and upper slot to

increase force to return pedals to neutral.

1. Speed Selector

2. Ball Joint (2)

3. Link

Figure 18: Speed Selector Adjustment

1. Neutral Adjustment Bolt

2. Spring-Forward

3. Spring-Reverse

Figure 19: Hydro Neutral Adjustment

OT0041

OT0030

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Ariens 936027 (Sierra 1640H Twin) Specifications Page 23