Fuel Pump - Toro Groundsmaster 4700-D Service Manual

Fuel Pump

The fuel pump is energized by the TEC--5002 controller
when the ignition switch is either in the START or ON
position. The fuel pump is attached to the left side frame
rail.
IMPORTANT: When testing fuel pump, make sure
that pump is not operated without fuel.
Fuel Pump Capacity Test
1. Park machine on a level surface, lower cutting
decks, stop engine and engage parking brake. Remove
key from ignition switch.
2. Raise and support hood.
3. Remove 20A fuse (F1--1) (Fig. 43) from fuse block to
prevent the engine from cranking.
4. Make sure fuel hoses attached to the fuel pump are
free of obstructions.
5. Disconnect fuel pump discharge hose from the fuel/
water separator inlet fitting (Fig. 42).
6. Place disconnected fuel hose (pump discharge) into
a large, graduated cylinder sufficient enough to collect
1 quart (0.95 liter).
7. Collect fuel in the graduated cylinder by turning igni-
tion switch to the ON position. Allow pump to run for 15
seconds, then turn switch to OFF.
8. The amount of fuel collected in the graduated cylin-
der should be approximately 16 fl oz (475 ml) after 15
seconds.
9. Replace fuel pump if necessary.
10.Install fuel hose to the fuel/water separator. Secure
hose with hose clamp.
11. Install 20A fuse into fuse block.
12.Bleed the fuel system.
13.Lower and secure hood.
Electrical System
1. Fuel/water separator
2. Pump discharge hose
F1
F2
F3
F4
1
Fuel Pump Specifications
Pump Capacity
Pressure
Current Draw
Page 5 - - 30
1
Figure 42
3. Inlet fitting
2 3 4
Figure 43
64 fl oz/min (1.9 l/min)
7 PSI (48.3 kPa)
2.0 amp
Groundsmaster 4500--D/4700--D
3
2
FRONT
M2 (option)
M1 (60A)