15
OPERATING INSTRUCTIONS
STARTING AND STOPPING
1. Sit on the seat, keep foot off traction pedal. Assure
parking brake is engaged, traction pedal is in
NEUTRAL and cutting unit engagement switch is in the
DISENGAGED position.
2. Turn ignition switch to ON position. When glow plug
indicator light goes off, engine is ready to START.
3. Turn ignition key to START. Release key when
engine starts.
4. To stop, disengage and move all controls to
NEUTRAL and set parking brake. Turn key to OFF and
remove it from switch. Raise and latch all cutting units in
transport position.
PRIMING FUEL SYSTEM (Fig. 15 & 16)
IMPORTANT: The fuel system may need to be
primed when a new engine is started for the first
time, if it runs out of fuel or if maintenance is
performed on the fuel system.
1. Unlatch and raise hood.
2. Insert a 3/16" hose over bleed screw and run other
end into a container to catch fuel.
3. Loosen fuel filter / water separator bleed screw (Fig.
15) a few turns. Pump priming plunger until a steady
stream of fuel comes out of hole in bleed screw. When
fuel stops foaming, tighten the bleed screw during the
downstroke of the priming plunger. Wipe up any spilled
fuel.
Note: Priming fuel filter without opening bleed screw
may damage priming plunger.
4. Pump priming plunger until resistance is felt. Try to
start engine. If engine does not start repeat step 3.
Figure 15
1. Primer Plunger 2. Bleed Screw
1
2
Note: It may be necessary to bleed the air out of the fuel
line between the fuel filter / water separator and the
injection pump. To do this, loosen the fitting on the
injection pump (Fig. 16) and repeat bleeding
procedure.
Figure 16
1. Injection Pump Fitting
1
CHECKING INTERLOCK SYSTEM
The purpose of the interlock system is to prevent the
engine from cranking or starting unless the traction
pedal is in NEUTRAL and the cutting unit engagement
switch is DISENGAGED. In addition, the engine will stop
when the cutting unit engagement switch is engaged or
traction pedal is depressed with operator off the seat, or
if the parking brake is engaged.
If safety interlock switches are disconnected or
damaged, the machine could operate unexpectedly
causing personal injury.
• Do not tamper with the interlock switches.
• Check the operation of the interlock switches
daily and replace any damaged switches before
operating the machine.
• Replace switches every two years regardless of
whether they are operating properly or not.
Caution
1. In a wide open area free of debris and bystanders,
lower cutting unit to the ground. Stop engine.
2. Move cutting unit engagement switch to
DISENGAGED position and remove foot from traction
pedal so it is fully released.
3. Rotate the ignition key to START. Engine should
start. If engine starts, proceed to step 4. If engine does
not start, there may be a malfunction in the interlock
system.
4. Raise off the seat and engage the cutting unit
engagement switch while the engine is running. The
engine should stop within 2 seconds. If engine stops,
the switch is operating correctly; thus, continue
operation. If engine does not stop, there is a
malfunction in the interlock system.
5. Sit on the seat, engage the parking brake and start
the engine. Move the traction pedal out of the neutral
position. The engine should kill. If the engine does not
kill, there is a malfunction in the interlock system that
should be corrected before beginning operation.
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