Engine Rpm Setting; Anti-Scalp Wheels; Cruise Control Spring Adjustment - HUSTLER TrimStar Hydro WalkBehind Operator's Manual

excessively worn or damaged. As belt stretches and wears
in, adjustment may become necessary. To increase belt
tension, move the spring chain one (or more) link(s) at the
anchor bracket. Installed spring length should be 5.50" ± .5"
(12.7 cm ± 1.27 cm) originally with adjustments of .60"
(15.2mm) per chain link. Fig. 5-11
IMPORTANT: Do not over tension the spring to
compensate for a badly worn belt or pulley.
Idler return spring
Spring extension
5.00" + .50"
3.30"
Free spring length
Figure 5-9
Maximum spring extension
5.50" + .50"
Free spring length
3.30"
Figure 5-10
Maximum spring extension
5.50" + .50"
Free spring length
3.30"
Figure 5-11

Engine RPM setting

The TrimStar Hydro is designed so that the engine will
run at 3600 rpm static pump load only. At this speed the
hydraulic pumps are running at their maximum rated speed.

Cruise control spring adjustment

The cruise control tension can be adjusted. The more
tension that is placed on the spring results in the cruise
control engaging quicker. Less spring tension results in the
operator having more control over the cruise control.
Adjust the cruise control tension by moving the spring
chain at the anchor bracket. Fig. 5-12
Cruise control spring
1.2' - 2.0"
1.7" - 2.7"

Anti-scalp wheels

1.7" - 2.7"
Anti-scalp wheel kits are standard on the TrimStar Hydro.
(Fig. 5-13) This anti-scalp kit is recommended to minimize
scalping when mowing on rough uneven terrain.
After setting the cutting height, adjust the anti-scalp
wheels so they extend below the deck but do not contact
the ground. They should always be at least 1/4" to 3/4" (.6
cm to 1.9 cm) below the deck. With the unit sitting on a flat
level surface, the wheel position can be adjusted up or down
as needed from 3/4" to 1-3/4" (1.9 cm to 9.5 cm) below the
blade surface. Move the wheels up or down, in 1/2" (1.3
cm) increments, using the different axle mount holes in the
wheel mount bracket. Fig. 5-13
NOTE: When the anti-scalp wheels are installed the
minimum cutting height is 1" (2.5 cm) with the anti-scalp
wheels set at 3/4".
5-4
Cruise control chain
Anchor
bracket
Figure 5-12
Axle
mount
holes
Figure 5-13
Anti-scalp
wheels
104893 10/05