Exmark LAZER Z ADVANTAGE SERIES, Operator'S Manual

Page: 29 / 52

24
4.1.6 Check safety interlock system.
Service Interval: Daily
Note: To prevent engine cut-outs on rough terrain, the seat kill switch
has a 1/2 second delay.
a) Check starting circuit. Starter should crank with, parking brake engaged,
PTO disengaged and motion control levers moved out in the neutral lock
position. The operator does not need to be in the seat to start the engine.
Try to start with operator in seat , parking brake disengaged, PTO
disengaged and motion control levers in the neutral lock position - starter
must not crank .
Try to start with operator in seat , parking brake engaged, PTO engaged and
motion control levers in the neutral lock position - starter must not crank .
Try to start with operator in seat , parking brake engaged, PTO
disengaged, and the left motion control lever in, starter must not crank,
repeat again with the right lever in , then with both levers in - starter must
not crank.
b) Check the kill circuits. Run engine at one-third throttle, disengage parking
brake and raise off of seat (but do not get off of machine) engine must
initiate shutdown after approx. 1/2 second has elapsed (seat has time delay
kill switch to prevent cut-outs on rough terrain).
Run engine at one-third throttle, engage PTO and raise off of seat (but do
not get off of machine) engine must initiate shutdown after 1/2 second has
elapsed.
Run engine at one-third throttle, with brake disengaged, move levers in and
raise off seat (but do not get off of machine) engine
must initiate shutdown
after 1/2 second has elapsed.
Again, run engine at one-third throttle, brake engaged, and move left
motion control lever in - engine must initiate shutdown.
Repeat again moving the right lever in , then moving both levers in - engine
must initiate shutdown whether operator is on seat or not .
NOTE: If machine does not pass any of these tests, do not operate.
Contact your authorized EXMARK SERVICE DEALER.
IMPORTANT: It is essential that operator safety mechanisms be
connected and in proper operating condition prior to use for mowing.
4.1.7 Check rollover protections systems (roll bar) pins
Service Interval: Daily
a) Make sure latch pin and hair pin are fully installed and lanyard is in good
condition.
4.1.8 Check seat belt
Service Interval: Daily
a) Visually inspect seat for wear, cuts, and proper operation of retractor and
buckle. Replace before operating if damaged.
4.1.9 Check for loose hardware.
Service Interval: Daily
a) Stop engine, wait for all moving parts to stop, and remove key. Engage
parking brake.
b) Visually inspect machine for any loose hardware or any other possible
problem. Tighten hardware or correct the problem before operating.