Adjustment Procedures; Return-To-Neutral Adjustment - Briggs & Stratton 5900731 Instruction Manual

Adjustment Procedures

If any controls fails to operate properly during testing
or seems to be out of adjustment, check and readjust it
according to the following instructions.
Return-To-Neutral
Adjustment
To determine if it is necessary to adjust the neutral
return, perform the following steps.
1. Disengage the PTO, engage the parking brake and
turn off the engine.
2. Move the ground speed control levers into the
operating position, pull levers rearward and release.
3. Move the ground speed control levers out towards
the neutral position. If the levers do not align with
the notches in the neutral lock plate, it is necessary
to adjust the neutral return rod (B, Figure 20).
It is important to note that after every adjustment of the
neutral return rod, the lever must be pulled rearward and
released to properly check the neutral position.
ADJUSTMENT
WARNING
To avoid serious injury, perform adjustments only
with the engine stopped, the key removed and the
tractor on level ground.
Perform this adjustment on a hard, level surface such as
a concrete floor.
1. Disengage the PTO, engage the parking brake and
turn off the engine.
2. There are three nuts (A) on the neutral return rod.
The first two are to be used together to turn the
neutral return rod and the third (towards the front of
the machine) is used to lock the neutral return rod
in place. Loosen the jam nut that locks against the
ball joint and turn the neutral return rod to adjust. If
the machine creeps forward, turn the neutral return
rod CLOCKWISE (while standing at the rear of the
machine, facing forward), if the machine creeps
backward, turn the neutral return rod COUNTER-
CLOCKWISE.
3. Lock the jam nut against the ball joint when neutral is
achieved.
NOTE: This adjustment should not be performed while
the machine is running. It may take several attempts to
achieve neutral, depending upon how much the machine
creeps.
Zero-Turn Riding Mower - 48" Mower Deck
Figure 20 - Return-to-Neutral Adjustment
A. Jam Nuts
B. Neutral Return Rod
11
A
B