Fuel Pump (Diesel Engine Only) - Toro Groundsmaster 3500 30807 Service Manual

Fuel Pump (Diesel Engine Only)

The fuel pump is attached to the left frame rail near the
engine.
Operational Test
1. Park machine on a level surface, lower cutting
decks, stop engine, and engage parking brake. Unlatch
and raise hood.
2. Disconnect electrical connector from the fuel stop
solenoid to prevent the engine from starting.
3. Disconnect the fuel hose between the pump and the
filter/separator (pump discharge) at the filter separator.
4. Make sure fuel hoses to and from the fuel pump are
not kinked, damaged, and free of obstructions.
5. Place disconnected fuel hose into a graduated cylin-
der with at least a 1 quart (0.95 liter) capacity.
IMPORTANT: When testing the fuel pump, DO NOT
turn ignition switch to START.
6. Collect fuel in the graduated cylinder by turning igni-
tion switch to the RUN position. Allow pump to run for
time listed below, then return switch to OFF. The amount
of fuel collected in the graduated cylinder should be
approximately 21 to 37 fl oz (0.62 to 1.1 Ltr) after thirty
(30) seconds.
7. Replace fuel pump as necessary. Reconnect fuel
hose to the fuel filter/separator.
8. Reconnect electrical connector to the fuel stop sole-
noid.
9. Bleed fuel system.
Electrical System
2
4
1. Fuel pump
2. Fuel hose (discharge)
Fuel Pump Specifications
Pump Capacity
Pressure
Max. Current Draw
Page 6 − 26
1
3
Figure 34
3. Fuel filter
4. Fuel stop solenoid
42 to 74 fl oz/min
(1.2 to 2.2 Ltr/min)
2.3 psi (15.8 kPa)
1.8 amp
Groundsmaster 3500