Fuel Pump (Models 30603 And 30605) - Toro Groundsmaster 4000-D Service Manual

Fuel Pump (Models 30603 and 30605)

The fuel pump is attached to the fuel tank support above
the fuel water separator (Fig. 76).
Operational Test
1. Park machine on a level surface, lower cutting
decks, stop engine and apply parking brake. Raise hood
to access fuel pump.
2. Disconnect fuel pump discharge hose from the fuel
injection pump fitting on the engine (Fig. 77).
3. Make sure fuel hoses attached to the fuel pump are
free of obstructions.
4. Place disconnected end of fuel pump discharge
hose into a large, graduated cylinder sufficient enough
to collect 1 quart (0.95 liter).
IMPORTANT: When testing fuel pump output, do
not turn ignition switch to the START position.
5. Collect fuel in the graduated cylinder by turning igni-
tion switch to the RUN position. Allow pump to run for fif-
teen (15) seconds, then turn switch to OFF.
6. The amount of fuel collected in the graduated cylin-
der should be approximately 16 fl oz (475 ml) after fif-
teen (15) seconds.
7. Replace fuel pump as necessary.
IMPORTANT: If fuel pump is replaced, make sure
that replacement pump is the correct pump for your
Groundsmaster by using your Parts Catalog. If in-
correct pump is used, fuel system components can
be damaged.
8. Install fuel hose to the water separator and secure
with hose clamp.
9. Prime fuel system (see Fuel System in the Service
and Repairs section of Chapter 3 -- Yanmar Diesel En-
gine).
10.Lower and secure hood.
Electrical System
2
1. Fuel water separator
2. Fuel pump
1. Tier 4i engine
2. Hose clamp
Fuel Pump Specifications
Pump Capacity
Pressure
Current Draw
Page 5 - - 58
4
3
1
Figure 76
3. Pump inlet hose
4. Pump discharge hose
1
4
2
Figure 77
3. Fuel supply hose
4. Fuel return hose
64 fl oz/min (1.9 l/min)
7 PSI (48.3 kPa)
2.0 Amp
Groundsmaster 4000--D/4010--D
3