Battery Maintenance - Ferris ISX3300 Series Operator's Manual

To Adjust the Spring Pre-load:
This procedure details the process for adjusting the spring's
pre-load for the rear shocks. To adjust the spring's pre-load
for the front shocks only steps #1 and #5 are required.
The shock's pre-load adjustment consists of rotating the pre-
load adjuster (A, Figure 74) with a spanner wrench so that the
adjuster rides either up or down on the shock's fixed point (B)
into one of the adjuster's five notch positions. As the adjuster
moves up towards the spring, the spring is more compressed
which creates more spring load. As the adjuster moves down
away from the spring, the spring is less compressed creating
less spring pre-load.
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1. Park the unit on a flat, level surface such as a concrete
floor. Disengage the PTO, engage the parking brake, and
turn the ignition switch to OFF to stop the engine.
2. Chock the front wheels to prevent the unit from rolling.
3. Raise the rear of the unit and secure with jack stands.
4. Remove the rear drive tires.
WARNING
Spring loaded components can kick back causing injury.
Use two hands when adjusting the shock springs with the
spanner wrench. This will prevent the wrench from slipping
while pressure is being applied.
5. Using the supplied spanner wrench (B, Figure 73), insert
the tip of the wrench into the adjustment notch (C, Figure
74) in the pre-load adjuster (A). While holding the wrench
in place with one hand:
• Turn the pre-load adjuster so that it moves up
towards the spring, compressing it, to increase the
springs's pre-load;
• Turn the pre-load adjuster so that it moves down
away from the spring, decompressing it, to decrease
the spring's pre-load.
Note: If necessary, a replacement spanner wrench can be
ordered through your authorized Ferris servicing dealer.
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6. Re-install the rear drive tires. Torque the lug bolts to
85-95 ft.lbs. (115-129 Nm). Remove the jack stands from
under the unit.
Note: If a collection system is installed on the unit it is
recommended that the rear suspension be adjusted stiffer
due to the added weight of the collection system.
To Adjust the Upper Mounting Position (Rear
Shocks):
1. Park the unit on a flat, level surface such as a concrete
floor. Disengage the PTO, engage the parking brake, and
turn the ignition switch to OFF to stop the engine.
2. Chock the front wheels to prevent the unit from rolling.
Raise the rear of the unit and secure with jack stands.
The jack stands must be under the bumper of the unit.
3. Position the jack underneath the rear cross member
of the transmission cradle and slowly raise the rear
suspension to relieve the pressure on the upper shock
mounting bolts.
Note: This will require small adjustments to the jack's position.
The shock should move freely on the mounting bolt when the
pressure is relieved.
4. Remove the upper shock mounting hardware and pivot
the shock to the next higher numbered position (see
Figure 73). Adjust the jack to align the shock mounts to
shocks.
5. Remove the jack from under the transmission cradle.
6. Remove the jack stands from underneath the unit.

Battery Maintenance

DANGER
Be careful when handling the battery.
Battery acid can cause severe burns. Avoid contact with
skin. Wear protective gear (safety goggles/face shield and
gloves) when working with the battery.
Keep the battery out of reach of children.
To avoid an explosion, keep open flames and sparks away
from the battery, especially while charging.
When removing or installing battery cables, disconnect the
negative cable FIRST and reconnect it LAST. If not done in
this order, the positive terminal can be shorted to the frame
by a tool.
Cleaning the Battery and Cables
This unit is equipped with a maintenance-free BCIU1 battery.
1. Disconnect the cables from the battery, negative [-] cable
first (B, Figure 75).
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