Land Pride ZR52 - Manual (Page 12)

10
Section 2: Operating
ZR44 & ZR52 (S/N 472619 & below) Accu-Z Razor ® Zero Turn Mowers 356-059M 4/19/10
Table of Contents
Instrumentation
Oil Pressure Light
Refer to Figure 2-2:
This light comes on when the ignition switch is placed in
the RUN position and stays lit until the engine is running
and a safe oil pressure is developed. If light comes on
during operation, shut engine off immediately and locate
and correct the problem.
Safety Start Interlock System
The mower is equipped with a safety start interlock system
consisting of the brake switches, seat switch and blade
engagement switch. Check mower safety start interlock
system daily, prior to operation. This system is an
important mower safety feature. It should be repaired
immediately if it malfunctions. The machine incorporates a
separate seat switch which will stop the mower engine
when the operator is unseated for any reason while the
mower is moving or the blades are engaged. This is a
safety feature designed to prevent runaway or accidental
entanglement. To inspect the system:
5. The operator must be on the seat when testing the
seat switch.
6. Set both control levers in the park brake position.
7. Start the engine and allow it to warm up to operating
temperature.
8. With the blade engagement switch down and the
control levers in the park brake position, slowly raise
off of the seat. The engine should continue to run.
9. With the blade engagement switch up and/or the
control levers in the neutral position, slowly raise off of
the seat. The engine should stop within two seconds.
10. If the engine fails to stop when the blade engagement
switch is up or one or both of the control levers is in
and the operator is off the seat, check the function of
the seat switch. If the seat switch is not operating
properly (is not opening or closing) and if the cause
cannot be determined, replace the seat switch.
If the problem cannot be located, contact your Land Pride
Dealer.
!
WARNING!
The safety interlock system should always function per steps 4
and 5. If it does not function properly, it should be corrected
immediately. Do not operate machine without a properly
functioning seat safety switch.
Engine Starting
The Razor Z safety start interlock system is also designed
to protect the operator and others from accidental injury
due to unintentional engine starting. The engine starting
motor will not engage until:
A. Control levers are in the brake position.
B. Blade engagement switch is in the down (OFF)
position.
!
WARNING!
The safety interlock system must not be disconnected or
bypassed.
The following steps are the correct procedures for starting
the engine. If difficulty is encountered, contact the Land
Pride Dealer in your area.
1. Before starting mower each day, perform daily
pre-operation checking. (See “Safety Start Interlock
System” on this page.)
2. Make sure the control levers are in the brake position
and blade engagement switch is disengaged.
3. Set throttle at approximately 1/2 open position.
4. Insert key in ignition switch and rotate clockwise to
engage starting motor. Release key when engine
starts.
5. Perform test to make sure safety start interlock system
is operating properly. Refer to “Safety Start Interlock
System” on this page.
6. As soon as engine begins to run, check to make
certain the oil warning light is off. If not, stop engine
immediately and check for the cause. Refer to
“Troubleshooting” page 34.
7. Allow the engine to idle a few minutes before
advancing the throttle and/or engaging the blade
clutch.
8. Before stopping the engine, place the control levers in
the brake position, disengage the blade engagement,
and throttle back to low idle for a couple of minutes;
then rotate ignition key counter-clockwise to the OFF
position. Remove the key from switch before leaving
the seat.
!
WARNING!
Never leave the machine unattended with key in ignition switch.
NOTE: The operator’s seat is equipped with a
separate safety switch. If for any reason the operator
should become unseated when the neutral switches
are disengaged or the blade engagement switch is
engaged the engine will stop.
NOTE: Use choke position when engine is cold, or if
warm engine fails to start within 5 seconds of
cranking. Avoid flooding and operate engine without
choking as soon as possible.
IMPORTANT: The engine starter should not be
operated for periods longer then 30 seconds at a time.
An interval of at least two minutes should be allowed
between such cranking periods to protect the starter
from overheating and burn-out.