Checking The Safety Interlock System; Installing And Removing The Cutting Units - Toro 04520 Operator's Manual

Checking the Safety Interlock
System
CAUTION
If the 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.
The purpose of the safety-interlock system is to prevent
operation of the machine where there is possible injury to the
operator or damage to the machine.
•
The traction pedal is in the N
•
The functional-control lever is in the N
The safety-interlock system prevents the machine from
moving unless:
•
The parking brake is off.
•
The operator is seated.
•
The functional-control lever is in the M
the T position.
RANSPORT
The safety-interlock system prevents the reels from operating
unless the functional-control lever is in the M
Perform the following system checks daily to ensure that the
interlock system is operating correctly:
1. Sit on the seat, move the traction pedal to the N
position, move the functional-control lever to the
N position, and engage the parking brake.
EUTRAL
2. Try to press the traction pedal.
The pedal should not press, which means that the
interlock system is operating correctly. Correct the
problem if it is not operating properly.
3. Sit on the seat, move the traction pedal to the N
position, move the functional-control lever to the
N position, and engage the parking brake.
EUTRAL
4. Move the functional-control lever to the M
or the T
RANSPORT
The engine should not turn-over or start, which means
that the interlock system is operating correctly. Correct
the problem if it is not operating properly.
5. Sit on the seat, move the traction pedal to the N
position, move the functional-control lever to the
N position, and engage the parking brake.
EUTRAL
6. Start the engine and move the functional-control lever
to the M position or the T
OW
The engine should kill, which means that the interlock
system is operating correctly.
Correct the problem if it is not operating properly.
position.
EUTRAL
EUTRAL
position or
OW
position.
OW
OW
position and try to start the engine.
position.
RANSPORT
7. Sit on the seat, move the traction pedal to the N
position, move the functional control lever to the
N
EUTRAL
8. Start the engine.
9. Release the parking brake, move the functional control
lever to the M
The engine should shut off, which means that the
interlock system is operating correctly. Correct the
problem if it is not operating properly.
10. Sit on the seat, move the traction pedal to the N
position, move the functional control lever to the
N
EUTRAL
11. Start the engine.
12. Move the raise/lower mow control forward to lower
the cutting units. The cutting units should lower but
not start rotating.
position.
If they start rotating, the interlock system is not
operating correctly; correct the problem before
operating the machine.
Installing and Removing the
Cutting Units
Note: When sharpening, setting the height-of-cut, or
performing other maintenance procedures on the cutting
units, store the cutting unit reel motors in the storage location
on the front of the suspension arms to prevent damage to
them.
EUTRAL
Important: Do not raise the suspension to the transport
position when the reel motors are in the holders in the
machine frame. Damage to the motors or hoses could
result.
Important: Whenever you need to tip the cutting unit,
prop up rear of cutting unit to ensure that the nuts on
the bedbar adjusting screws are not resting on work
surface (Figure
EUTRAL
position
EUTRAL
g014596
1. Prop (not provided)
26
position, and engage the parking brake.
position, and rise from the seat.
OW
position, and engage the parking brake.
27).
2
Figure 27
2. Bedbar-adjusting-screw
nut (2)
EUTRAL
EUTRAL
2
1