18
85372
™
Steering Control and Transport Control Caliper Pad
Adjustment (See Figure 13):
The caliper housings
have a pad adjusting screw to allow adjustment for
wear in the pads and the rotor. Before adjusting,
ensure that the steering and transport control levers
are not depressed, damaged, and do not bind or stick
when operated. Check that the caliper housing is
free to slide back and forth on the caliper mounting
brackets. Adjust both the right and left hand controls to
ensure equal and even steering and transport control.
After adjustment, check operation to ensure that the
controls will steer the machine. Follow Steering Control
and Transport Control Cable Adjustment procedures if
cable needs to be readjusted. Replace pads, caliper
assembly or rotor if worn beyond adjustment.
Step 1.
Unlock the jam nut for the pad adjusting screw.
Turn the pad adjusting screw until the pads very
lightly touch the rotor.
Step 2.
Slightly back off the pad adjusting screw until
the pads no longer touch the rotor. Turn the rotor
and check that the pads do not contact the rotor.
Some pad and rotor contact is normal as the caliper
housing “floats” on the caliper mounting brackets
and rotor will have some side play, however the pad
contact should be very light and minimal.
Step 3.
Tighten jam nut to secure adjusting screw.
Step 4.
Steering control and transport control levers
and cables must operate freely without excessive
force. Replace top guard.
Steering Control and Transport Control Cable
Adjustment (See Figure 14):
The cable conduit
end has an adjustment to take-up any slack in
the cable caused by cable stretch or if the caliper
housing assembly has been removed for service.
Before adjusting the cable, the caliper pads should
be adjusted. See Steering Control and Caliper Pad
Adjustment section in this manual.
After adjustment, check caliper operation to ensure that
the controls will steer and stop the machine. Both right
and left hand steering control levers should require the
same amount of pressure to steer the machine.
Step 1.
Remove the top guard from the aerator.
Step 2.
At the cable conduit end, loosen the inside jam
nut. Turn the outside jam nut until proper adjustment
is reached. Ensure that the caliper pads do not rub
on the rotor when the steering control levers ARE
NOT applied. Ensure that the steering control levers
completely return when released.
Step 3.
Tighten the inside jam nut to lock the adjustment
and to secure the cable conduit end. Replace the top
guard.
Wheel Lift Spring Tension Adjustment (See Figure
15):
The lift springs are meant to assist in the lifting of
the aerator. The operator should only need to apply a
light lifting force on the handlebars to raise the machine.
If excess lifting force is required or the wheels do not
latch on there own, spring adjustment is required. When
lowering the aerator, only a light downward force on the
handlebars should be needed.
Step 1.
Clean & lightly lubricate latching mechanism.
Step 2.
Locate spring adjusters. Check the measurement
on the adjusters
(See figure 15)
. Both adjusters
should be set at equally 2-3/4”.
Step 3.
If needed, increase lifting force by tightening
adjusters. Tighten both adjusters equally.
Step 4.
Test and readjust as needed. If springs fails to
lift, replace springs.
FIGURE 13
CALIPER
HOUSING
ROTOR
PAD ADJUSTING
SCREW
CALIPER
PADS
JAM NUT
SV85372-04
FIGURE 14
CABLE CONDUIT
JAM NUTS
CALIPER
HOUSING
CALIPER ACTUATOR ARM
INSIDE OUTSIDE
SV85372-03
SERVICE
TENSION ADJUSTER
FIGURE 15
SPRING
2-3/4” INCHES
(70 mm)
SV85372-05
