Hydrostatic Transmission Neutral Adjustment - Ariens Gravely 915 ZT EZT Service Manual

See Figure 9 for anti-scalp locations on models
915044, 046, 048, 050. See Figure 10 for anti-scalp
locations on model 915042.
There are two positions:
• Highest Position: Use to disable anti-scalp feature.
• Lowest Position: Use for all cutting positions.
In the lowest position the anti-scalp rollers will touch
the ground.
3
2
1. Anti-scalp Roller
2. Lowest Position
3. Highest Position
1
2
1. Anti-scalp Roller
2. Lowest Position
3. Highest Position
Figure 10
3
Figure 9
3
2
4.9 HYDROSTATIC TRANSMISSION
NEUTRAL ADJUSTMENT
Models 915042, 044, 046, 048, 050
1. Shut off engine and engage the parking brake.
CAUTION: PREVENT personal injury!
ALWAYS MAKE CERTAIN that jack(s) or
blocks used are stable, strong and will
support the weight of the unit.
2. Position rear wheels off the ground. Be careful to
1
secure the unit to the lift or position the unit to face
a wall for safety. Disconnect the rods from the
handlebars to the linkage.
3. Pull the pin that holds the locking arm to the brake
rod then release the locking arm and disengage it
from the gear.
4. Engage seat switch and start the engine.The drive
wheels should not be rotating. If the wheels are not
driven to rotate, proceed to Steering Control
Neutral Adjustment.
To adjust the neutral setting for no wheel rotation
Model EZT 915042:
5. Use a hex wrench to loosen the locking bolt (Figure
11) until the linkage can be rotated by hand.
6. With the engine running and the drive wheels off
the ground, rotate the linkage in either direction.
The correct linkage position is when the wheel is
OE0038
not being driven (under power).
7. Hold the linkage in place and tighten the locking
bolt.
8. Shut off engine and reconnect steering rods.
9. Reconnect parking brake pin. Check parking brake
linkage for proper movement.
1
4
3
OE0310
1. Locking Bolt
2. Steering Rod
4 - 12
3. Pin
4. Locking Arm
Figure 11
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1