Deck Lift Assist Springs; Parking Brake Adjustment; Suspension Adjustment - Ferris IS600 Series Operator's Manual

69
7. Remove the blocking from under the mower deck.
8. Re-check the measurements from the tips of the mower
blades to the ground. The front measurements should
equal 4" (10,2 cm) and the rear measurements should
equal 4-1/4" (10,8 cm).
• if the measurements are correct, tighten the jam nuts
on the deck linkages. The adjustment procedure is
complete.
• If the measurements are not correct, turn the
hex adjusters on the deck linkages until the
measurements are correct.
9. Tighten the jam nuts on the deck linkages.

Deck Lift Assist Springs

Some models are equipped with deck lift assist springs (A,
Figure 70) that assist the operator in raising the mower deck
with the deck lift pedal. The deck lift assist springs are factory
set to provide optimal lifting performance.
70
Although it is fastened with a multi-position anchor, this is not
an adjustment point.
44
Do NOT attempt to adjust the spring length or lifting
performance will be compromised.

Parking Brake Adjustment

1. Park the unit on a flat, level surface such as a concrete
floor. Disengage the PTO, engage the parking brake, turn
the ignition switch to OFF, and remove the ignition key.
2. hock the front wheels of the unit.
3. Locate the upper brake spring (A, Figure 71) through the
opening under the fuel tanks.
71
4. With the parking brake engaged, measure the
compressed spring length (B). The spring should be 2" -
2-1/8" (5,0 - 5,4 cm) when compressed.
5. If adjustment is required, disengage the parking brake,
and turn the adjustment nut (C).
6. Engage the parking brake and measure the spring.
7. Repeat this process until the measurement is achieved.
CAUTION
Do not adjust the spring to be shorter than 2" (5,0 cm)
when compressed. This may damage the brake caliper.

Suspension Adjustment

The shock assembly 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.
To adjust the spring pre-load:
1. Park the unit on a flat, level surface such as a concrete
floor. Disengage the PTO, engage the parking brake, turn
the ignition switch to OFF, and remove the ignition key.
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