Pump Drive Belt Adjustment - HUSTLER Hydro WalkBehind Owner's Manual

Shoulder
bolt
Speed control rod
Figure 5-10
Disconnect the spark plug wire from the spark plug.
2. Remove the upper lock collar bolt. Fig. 5-9
3. Remove the lower roll pin. Fig. 5-9
4. Remove the shoulder bolt from the speed control rod.
Fig. 5-10
5. Raise or lower the H-bar handle assembly and align
the holes.
6. Install the upper lock collar bolt, the lower roll pin and
speed control shoulder bolt and tighten.

Pump drive belt adjustment

The pump drive belt tension remains constant by means of
a tension idler and spring (Fig. 5-11). The spring tension
S S p p r r i i n n g g
c c h h a a i i n n
A A n n c c h h o o r r b b r r a a c c k k e e t t
Figure 5-11
Idler return spring
Spring extension
4-1/2" - 5"
4"
Free spring length
Figure 5-12
Use these holes for
maximum H-bar
height
Spring
1/2' - 1"
should be such that the belt does not slip under normal
operating load conditions, assuming the belt is not
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 (Fig. 5-11). Installed spring length should be
4.70" ± .3" (11.9 cm ± .76 cm) originally with adjustments
of .60" (15.2mm) per chain link. Fig. 5-12
IMPORTANT: Do not over tension the spring to
compensate for a badly worn belt or pulley.
Deck drive belt adjustment
The spindle belt tension remains constant by means of a
tension idler and spring (Fig. 5-13). The spring tension
should be such that the belt does not slip under normal
operating load conditions, assuming the belt is not
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 (Fig. 5-13). Installed spring length should be
4.40" ± .3" (11.2 cm ± .76 cm) originally with adjustments
of .60" (15.2mm) per chain link. Fig. 5-14
IMPORTANT: Do not over tension the spring to
compensate for a badly worn belt or pulley.
Engine RPM setting
The Hydro WalkBehind 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.
Anti-scalp wheels
Anti-scalp wheel kits are standard on the Hydro
Spring
A A n n c c h h o o r r
bracket
Maximum spring extension
Free spring length
3.30"
5-4
Spring chain
Figure 5-13
4.40" + .03"
1.1" - 1.7"
Figure 5-14
778845 Rev. 7/04