Exmark Lazer Z HP Operator's Manual page 35

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5.2.5
5.2.6
5.2.7
5.2.8
Adjust Seat Switch.
a) If necessary, adjust the seat actuator rod length to where the machine will
shut off when the operator raises off the seat (with brake disengaged or
PTO engaged) but will continue to run with operator in seat (a slight shift
in weight should not shut machine off). Normal adjustment is when
length of spring is 2.09" (with seat up).
NOTE: To prevent rough ground cut-outs the unit is equipped with a
time delayed seat switch. When the operator raises off the seat with
either the brake disengaged or the PTO engaged, the engine should
stop after 1/2 second has elapsed.
b) To adjust seat switch, loosen lock nut on bottom of the actuator rod (5/16
x 7" bolt) and adjust the nuts to move the actuator plate up or down on
the rod.
Brake Link Adjustment.
Check to make sure brake is adjusted properly.
a) Disengage brake lever (lever down).
b) Measure the length of the spring. Measurement should be 2.75" between
washers (see Fig 8).
c) If adjustment is necessary, tighten the lock nut directly below the yoke
and loosen the two nuts jammed together below the spring. Turn the nut
directly below the washer until the correct measurement is obtained.
Tighten the two jam nuts below the spring together and repeat on
opposite side of unit.
BRAKE ADJUSTMENT
Brake Adjustment.
a) Check for brake link 2.75" measurement as described in section 5.2.6.
b) Engage brake lever (lever up).
c) Measure the distance between the trunion roller and the rod collar as
shown in Fig. 8A. Measurement should be 3/16" to 1/4" (See Fig 8). A
3/16" or 1/4"square key works well as a shim gauge.
d) If adjustment is necessary, loosen the nut directly below the yoke. Turn the
bottom nut(below washer) until the correct measurement is obtained (See Fig
8) turn nut clockwise to lengthen the gap (screws rod into yoke) and turn
counter-clockwise to shorten the gap (screws rod out of yoke). Tighten nut
against yoke and check opposite side of unit, repeat if necessary.
Adjust Throttle Lever Tension.
a) Stop engine, wait for all moving parts to stop, and remove key.
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FIG. 8
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