Inspecting The Tires; Adjusting The Front; Suspension - Toro 12004TC Twister 1600 Operator's Manual

Inspecting the Tires

Check the tire condition at least every 100 hours
of operation. Operating accidents, such as hitting
curbs, can damage a tire or rim and also disrupt
wheel alignment, so inspect tire condition after an
accident.
Check the wheels to ensure that they are mounted
securely. Torque the lug nuts to 45-65 ft-lb
(61-88 N⋅m).

Adjusting the Front

Suspension

The ride height of each side of the vehicle can
be adjusted separately. The ride height should be
8-3/4 to 9-1/2 inches (22.2 to 24 cm) with the
following parameters:
• The tire pressure should be at 12 psi (83 kPa).
• The vehicle should be driven back and forth a
few times to relax the A-arms.
• Measure the ride height with the wheels facing
straight ahead and a 175-225 lb (79-102 kg)
operator in the driver's seat.
Note: The driver should drive up to the
measurement area and stay seated in the vehicle
while the measurement is being taken.
• Measure the ride height on a flat surface, from
the bottom of the front tongue to the ground.
1. Jack the front end of the vehicle off of
the ground; refer to Jacking the Vehicle in
Premaintenance Procedures, page 28.
2. Remove the travel limiting bolt (Figure 42).
3. Loosen the centering bolts in the front A-arm
(Figure 42).
4. Remove the ride height adjustment bolt
(Figure 42).
Figure 42
1. Travel limiting bolt
2. Centering bolt
5. Rotate the front A-arm to the desired position
(refer to the note below) and replace the ride
height adjustment bolt (Figure 42).
Note: The A-arms are made with rubber
and have different spring rates. Because of
the different spring rates, the A-arms come
adjusted from the factory based on that spring
rate. Generally the adjustment bolts will be
installed in hole number 2, 3, or 4 (Figure 43)
and it may be different from the left side (driver
side) to the right side (passenger side). If the
A-arms look like they are sagging, then they
should be adjusted to the next higher number
(Figure 43). Each hole equals about 3/4 inch
(19 mm) of adjustment at the wheel. You will
also need to do this if you are adding heavy
attachments or carrying heavy loads often.
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3. Ride height adjustment
bolt