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Groundsmaster 4100--D/4110--DPage 5 -- 60Electrical System
Fuel Pump (Models 30602 and 30604)
The fuel pump is attached to the fuel tank support above
the fuel water separator (Fig. 79).
Operational Test
1. Parkmachineonalevelsurface, lower cutting deck,
stop engine and apply parking brake. Raise hood to ac-
cess fuel pump.
2. Disconnect fuel pump discharge hose from the fuel
injection pump fitting on the engine (Fig. 80).
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.
1. Fuel water separator
2. Fuel pump
3. Pump inlet hose
4. Pump discharge hose
Figure 79
2
1
3
4
Figure 80
1
2
3
4
1. Tier 4i engine
2. Hose clamp
3. Fuel supply hose
4. Fuel return hose
Fuel Pump Specifications
Pump Capacity
64 fl oz/min (1.9 l/min)
Pressure 7PSI(48.3kPa)
Current Draw 2.0 Amp