Bleeding The Fuel System; Checking The Interlock Switches - Toro 30411 Operator's Manual

Bleeding the Fuel System

1. Park the machine on a level surface. Make sure that the
fuel tank is at least half full.
2. Unlatch and raise the hood.
Danger
Under certain conditions, diesel fuel and fuel
vapors are highly flammable and explosive. A fire
or explosion from fuel can burn you and others
and can cause property damage.
• Use a funnel and fill the fuel tank outdoors, in
an open area, when the engine is off and is cold.
Wipe up any fuel that spills.
• Do not fill the fuel tank completely full. Add fuel
to the fuel tank until the level is 1 in. (25 mm)
below the bottom of the filler neck. This empty
space in the tank allows the fuel to expand.
• Never smoke when handling fuel, and stay away
from an open flame or where fuel fumes may be
ignited by a spark.
• Store fuel in a clean, safety-approved container
and keep the cap in place.
3. Fully open the air bleed screw on the fuel injection
pump (Fig. 27).
Figure 27
1. Fuel injection pump bleed screw
4. Turn the key in the ignition switch to the On position.
The electric fuel pump will begin operation, thereby
forcing air out around the air bleed screw. Leave the key
in the On position for approximately 15 seconds.
Tighten the screw and turn the key to Off. Back off
screw one tenth of a turn.
Checking the Interlock
Switches
If 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.
• Replace switches every two years or 1500 hours,
whichever occurs first, regardless of whether
they are operating properly or not.
The machine has interlock switches in the electrical system.
These switches are designed to stop the engine when
operator gets off of the seat when the traction pedal is
depressed. However, the operator may get off of the seat
while the engine is running and the traction pedal is in
neutral. Although the engine will continue to run if the PTO
lever is disengaged and the traction pedal is released, it is
strongly recommended that the engine be stopped before
rising from the seat.
To check the operation of the interlock switches, perform
the following procedure:
1. Drive the machine slowly to a large, relatively open
area. Lower the cutting units, stop the engine, and apply
the parking brake.
2. Sit on the seat and depress the traction pedal. Try to
start the engine. The engine should not crank. If the
engine cranks, there is a malfunction in the interlock
system that should be corrected before beginning
1
operation.
3. Sit on the seat and start the engine. Rise from the seat
and move the PTO lever to On. The PTO should not
engage. If the PTO engages, there is a malfunction in
the interlock system that should be corrected before
beginning operation.
4. Sit on the seat, engage the parking brake and start the
engine. Move the traction pedal out of the neutral
position. The engine should kill. If the engine does not
kill, there is a malfunction in the interlock system that
should be corrected before beginning operation.
5. Sit on the seat, start the engine and set speed range to
low. Move PTO switch forward to engage cutting units.
Important
pushed to the lower position to enable PTO circuit
actuation by PTO switch.
27
Caution
The center lift lever must momentarily be