Safety Interlock System; Initial Run-In Procedures - Scag Power Equipment STC48V-19KAI Operator's Manual

Section 4
6. 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.
7. Left Steering Control (Figure 4-1).
the mower's left wheel when traveling forward or
reverse.
8. Right Steering Control (Figure 4-1).
control the mower's right wheel when traveling
forward or reverse.
9. 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.
10. Fuel Switching valve (Figure 4-1).
left 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.
11. 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 10ft/lbs
during operation of the mower. Rotating the levers
counter-clockwise allows the mower to be moved by
hand (free-wheeling).
DUMP VALVE
CONTROL LEVERS
Figure 4-2. Dump Valve Control
12. Deck Lift Foot Lever (Figure 4-1).
and lower the cutter deck. Push full forward to lock in
the transport position.
13. Cutting Height Adjustment (Figure 4-1).
set the cutter deck at the desired cutting height.
Two 20-amp fuses
Used to control
Used to
Used to
Located on the
Located
STC 2001 DVC
Used to raise
Used to
13
14. 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.
15. Seat Belt (Figure 4-1).
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 4-1).
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.
4.3

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 hydraulic oil level in reservoir. (See Section
7.3.)
4. Check for loose hardware. Tighten as needed.
5. Check interlock system for proper operation. (See
Section 4.2.)
6. Check tire pressure. Adjust pressure if necessary.
(See Section 7.10.)
Used to lock the
Used to secure the operator.
R