Product Manual

Check the Mower Belt Idler Tensioner Spring
Length
1. Set the mower deck to its middle cutting height position.
2. Use the Mower Belt Idler Tensioner Spring Length chart to
determine the correct spring length for your unit.
Mower Belt Idler Tensioner Spring Length
MeasurementModel
6-1/8" (15,6 cm)5900819
6-1/2" (16,5 cm)All Other Models
3. Measure the coil length (A, Figure 51) of the mower belt idler
tensioner spring (B). The measurement should equal the
measurement as designated in the chart. If the measurement
does not equal the measurement as designated in the chart,
perform the Adjust the Mower Belt Idler Tensioner Spring
Length procedure.
51
Adjust the Mower Belt Idler Tensioner Spring
Length
1. Loosen the jam nut (C).
2. Turn the adjustment nut (D) until the measurement as
designated in the chart is achieved.
3. Re-tighten the jam nut.
Hydraulic Pump Drive Belt Replacement
The arrow (J, Figure 52) indicates the front of the mower.
52
1. Park the tractor on a smooth, level surface such as a
concrete floor. Disengage the PTO, engage the parking
brake, turn off the engine, and remove the ignition key.
2. Remove the PTO drive belt (See Mower Belt Replacement
for removal instructions).
3. Remove the hardware that secures the clutch anchor pad
to the PTO clutch.
4. Loosen the jam nut (H) installed on the spring anchor eyebolt
(G).
5. Loosen the adjustment nut (I) to release the majority of the
belt tension. Use caution and remove the nut to completely
release the tension.
6. Remove the old belt and replace it with a new one (A). Make
sure the V-side of the belt runs in the grooves of the
crankshaft pulley and pump pulleys (B & C). The back-side
of the belt should contact the idler pulley (D) on the idler arm
(E).
7. Reinstall the spring anchor eyebolt into the anchor tab and
loosely fasten the adjustment nut. Turn the adjustment nut
until a measurement of 8-3/4" (21,2 cm) is achieved from
the outside of the spring hooks on the belt tension spring
(F). Tighten the jam nut.
8. Reinstall the clutch anchor pad to the PTO clutch and secure
with the hardware previously removed.
9. Reinstall the PTO drive belt.
Suspension Adjustment
The shock assembly (A, Figure 53) can be adjusted to vary the
amount of pre-load applied to the springs. This allows the
operator to maintain the ride height.
• Use less pre-load for light weight operators.
• Use more pre-load for heavy weight operators.
32 SimplicityMfg.com
Not for
Reproduction