Safety Interlock System - Scag Power Equipment Turf Tiger STT52V-26CH-EFI Operator's Manual

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6. voltmeter (Figure 4-1).
the charging system. When the engine is running, in
normal operating conditions, the needle should be in
the 12 to 14 volt range.
7. Hourmeter (Figure 4-1).
hours the engine has been operated. It only operates
when the engine is running. Has preset maintenance
reminders for engine and hydraulic system oil
changes. Will start flashing scheduled maintenance
2 hours before preset time and continue flashing
until 2 hours after. Automatically resets.
8. Fuse Holders (Figure 4-1).
protect the mower's electrical system. To replace
fuses, pull fuse out of the socket and install a new
fuse.
9. Left Steering Control (Figure 4-1).
the mower's left wheel when traveling forward or
reverse.
10. Right Steering Control (Figure 4-1).
control the mower's right wheel when traveling
forward or reverse.
11. Parking Brake Control (Figure 4-1).
engage and disengage the parking brakes. Pull the
lever back to engage the parking brakes. Push the
lever forward to disengage the parking brakes.
12. Fuel Gauge (Figure 4-1).
fuel in the fuel tank.
13. Dump valve Control Levers (Figure 4-2).
on the hydraulic pumps, used to "free-wheel" the
mower. Rotating the levers clockwise until they stop
allows the unit to move under hydraulic power. The
levers must be in this position and torqued to 10 lb-ft
during operation of the mower. Rotating the levers
counter-clockwise allows the mower to be moved by
hand (free-wheeling).
DUMP VALVE
CONTROL
Figure 4-2. Dump Valve Control
Indicates the condition of
Indicates the number of
Two 20-amp fuses
Used to control
Used to
Used to
Indicates the amount of
Located
390S141-1
14. Deck Lift Foot Lever (Figure 4-1).
and lower the cutter deck. Push full forward to lock in
the transport position.
15. Cutting Height Adjustment (Figure 4-1).
set the cutter deck at the desired cutting height.
16. Deck Release Lever (Figure 4-1).
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.
17. Temperature Gauge (Figure 4-1).
operating temperature of the engine. Used on
mowers with the liquid-cooled engine only.
18. Check Engine Light (Figure 4-1).
operation of the engine sensors on the Fuel Injection
Engines (DFI or EFI). If a problem occurs with a
sensor on the engine, the light will flash a code.
See your authorized Scag Dealer for diagnosis and
repair.
19. Seat Belt (Figure 4-1).
Seat belt must be worn at all times when the ROPS
is in the upright and locked position.
20. Seat Hold Down Release Latch (Figure 4-1).
Located behind the seat. Used to secure the seat
in the operator's position. Release the latch to gain
access under the seat.
4.2

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.
14
Section 4
Used to raise
Used to
Used to lock the
Indicates the
Indicates the
Used to secure the operator.