Greensmaster 3300/3400 Page 6 -- 49 Electrical System
Fuel Pump (Greensmaster 3400 machines)
The fuel pump on Greensmaster 3400 machines is se-
curedtotheradiatorassemblywithanr--c lamp(Fig.65).
The Toro ElectronicController(TEC) energizes the fuel
pump when the ignition switch is in either the RUN or
START position.
IMPORTANT: When testing fuel pump, make sure
that pump is not operated without fuel.
DANGER
Because diesel fuel is flammable, use caution
when handling it.Do notsmoke while testingthe
fuel pump. Do not test fuel pump while engine is
hot. Make sure that there is adequate ventilation
whentesting.Alwayswipeupanyspilledfuelbe-
fore starting the engine.
Fuel Pump Capacity Test
1. Park machineon alevel surface,lower cuttingunits,
stop engine and engage parking brake.
2. Raise operator seat and remove starter fuse from
fuse block to prevent the engine from cranking (see
Fuse Block (Greensmaster 3400) (serial number de-
pendant) in this s ection).
3. Disconnect machine fuel supply hose from the fuel
pump outlet (Fig. 65).
4. Make sure fuel hose attached to the fuel pump inlet
isfreeofobstructions.Also,makesurethatfuelshut--off
valve on fuel tank is open.
5. For fuel pump testing, place s ection of fuel hose on
fuel pump outlet and secure in place with hose clamp.
Place otherend of fuelhose into alarge, graduatedcyl-
inder sufficient enough to collect 1 quart (0.95 liter).
IMPORTANT: When testing the fuel pump, DO NOT
turn ignition switch to START.
6. Collect fuelinthe graduatedcylinderby turningigni-
tionswitchtotheRUNposition.Allowpumptorunforfif-
teen (15) seconds, then turn ignition switch to OFF.
7. Fuel collected in the graduated cylinder should be
approximately 16 fl oz (475 ml) after fifteen (15) sec-
onds.
8. Replace fuel pump if necessary.
9. Remove fuel hose from pump outlet and install ma-
chine fuelsupplyhose to the pumpoutlet.Make sure to
secure fuel hose with hose clamp.
10.Install starter fuse into fuse block.
11.Bleed the fuel system.
1. Fuel pump
2. Fuel pump inlet
3. Fuel pump outlet
4. Fuel supply hose
Figure 65
1
2
3
4
Fuel Pump Specifications
Pump Capacity
64 fl oz/min (1.9 l/min)
Pressure 7 PSI (48.3 kPa)
Current Draw 2.0 amp
Electrical
System
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