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R
8. Speed Control Lever (Figure 4-1). Used to select
the forward speed.
9. Neutral Latch (Figure 4-1). Used to secure the
hydraulic drive system in neutral. Apply neutral
latches when parking the machine.
10. Operator Presence Control (Figure 4-1)The
operator presence control levers must be depressed
before the speed control lever is shifted out of
neutral or engaging the mower deck.
11. Parking Brake Lever (Figure 4-1) Used to engage
and disengage the parking brake. Pull the lever back
to engage the parking brake. Push the lever forward
to disengage the parking brake.
4.2 SAFETY INTERLOCK SYSTEM
The mower is equipped with a safety interlock system that
shuts off the engine if the operator releases the operator
presence levers with the deck drive engaged and/or the
speed control lever not in neutral or the parking brake
disengaged. Never operate equipment with the interlock
system disconnected or malfunctioning.
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.
4.3 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. Place the steering control levers in the neutral lock
position, place the speed control lever in the neutral
position, engage the parking brake, and engage the
PTO switch to the ON (up) position. Stand in the
operating position for electric start models. Try to
start the engine; the engine should not start.
2. Place the steering control levers in the neutral lock
position, move the speed control lever out of the
neutral lock position, engage the parking brake,
move the PTO switch to the OFF (down) position,
Stand in the operating position for electric start
models. Try to start the engine; the engine should not
start.
3. Place the steering control levers in the neutral lock
position, place the speed control lever in the neutral
position, engage the parking brake, move the PTO
switch to the OFF (down) position. Stand in the
operating position for electric start models. Start the
engine. With the engine running, engage the PTO
switch to the ON (up) position, and remove your
hands from the operator presence controls on the
handle bars. The engine should shut off.
4. Place the steering control levers in the neutral lock
position, place the speed control lever in the neutral
position, engage the parking brake, move the PTO
switch to the OFF (down) position. Stand in the
operating position for electric start models. Start the
engine. With the engine running, release the parking
brake, and remove your hands from the operator
presence controls on the handle bars. The engine
should shut off.
5. Place the steering control levers in the neutral lock
position, place the speed control lever in the neutral
position, engage the parking brake, move the PTO
switch to the OFF (down) position. Stand in the
operating position for electric start models. Start the
engine. With the engine running, move speed control
lever out of neutral, and remove your hands from the
operator presence controls on the handle bars. The
engine should shut off.
4.4 INITIAL RUN-IN PROCEDURES
FIRST DAY OF USE OR APPROXIMATELY 20 HOURS
1. Check all belts for proper alignment and wear at 2, 4
and 8 hours.
2. Change the engine oil and oil filter after the first 20
hours of operation. (See Section 7.4.)
3. Check for loose hardware. Tighten as needed.
4. Check interlock system for proper operation. (See
Section 4.2.)
5. Check tire pressure. Adjust pressure if necessary.
(See Section 7.10.)
12
Section 4
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