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R
12. Cutting Height Adjustment (Figure 4-2). Use to set
the cutter deck at the desired cutting height.
13. Deck Release Lever (Figure 4-2). Use to lock the
cutter deck in the transport position. Push the foot
pedal forward and pull back on the release lever to
release the cutter deck for normal mowing.
14. Seat Suspension Control Knob (Figure 4-2). Use
to select the optimum suspension rate based on the
operator.
15. Seat Belt (Figure 4-2). Use to secure the operator.
Seat belt must be worn at all times when the ROPS
is in the upright and locked position.
16. Seat Hold Down Release Latch (Figure 4-2).
Located behind the seat. Use to secure the seat in
the operator's position. Release the latch to gain
access under the seat.
17. Fuel Switching Valve (Figure 4-2). Located on
the right side of the machine. Used to shut off
fuel supply to the engine and change fuel supply
between the fuel tanks. Rotate the valve counter
clockwise to supply fuel from the tank on the left side
only. Rotate the valve clockwise to supply fuel from
the tank on the right side only.
4.3 SAFETY INTERLOCK SYSTEM
The mower is equipped with a safety interlock system that
prevents the engine from starting unless the deck drive is
disengaged, the parking brake is engaged, the steering
control levers are in the neutral position and the operator
is in the seat. The interlock system shuts off the engine if
the operator leaves the seat with the steering control levers
not in the neutral position and/or the cutter blades engaged
and the parking brake not engaged.
WARNING
Never operate the mower with the interlock
system disconnected or malfunctioning. Do
not disengage or bypass any switch; injury to
yourself and others or property damage could
result.
4.4 TESTING THE SAFETY INTERLOCK
SYSTEM
The safety interlock system should be tested each time
before using the machine. If the safety interlock system
does not operate as described below, contact your local
Authorized Scag Power Equipment Dealer immediately to
have the safety interlock system repaired.
1. Sit in the seat in the operating position, engage the
parking brake, place the steering control levers in
the neutral lock position, and engage the PTO switch
to the ON (up) position. Try to start the engine; the
engine should not start.
2. Sit in the seat in the operating position, engage the
parking brake, move either of the steering control
handles out of the neutral lock position, move the
PTO switch to the OFF (down) position. Try to start
the engine; the engine should not start. Repeat for
the other steering control lever.
3. Sit in the seat in the operating position, disengage
the parking brake, place the steering control levers
in the neutral lock position, move the PTO switch to
the OFF (down) position. Try to start the engine; the
engine should not start.
4. Sit in the seat in the operating position, engage the
parking brake, place the steering control levers in
the neutral lock position, move the PTO switch to the
OFF (down) position, and start the engine. With the
engine running, release the parking brake and rise
slightly off of the seat. The engine should shut off.
5. Sit in the seat in the operating position, engage the
parking brake, place the steering control levers in
the neutral lock position, move the PTO switch to
the OFF (down) position, and start the engine. With
the engine running, engage the PTO switch to the
ON (up) position, and rise slightly off of the seat. The
engine should shut off.
6. Sit in the seat in the operating position, engage the
parking brake, place the steering control levers in
the neutral lock position, move the PTO switch to the
OFF (down) position, and start the engine. With the
engine running, move either steering control lever
out of the neutral lock position. The engine should
shut off. Repeat for the other steering control lever.
20
Section 4
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