Greensmaster 3250--D
Page 5 -- 28
Electrical System
Fuel Pump
The fuel pump on Greensmaster 3250--D machines is
secured to the radiator assembly with an r--clamp (Fig.
35).Thefuelpumpisenergizedwhentheignitionswitch
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.Donotsmokewhile testing the
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 machine on alevelsurface,lower cutting units,
stop engine and engage parking brake.
2. Disconnect machine fuel supply hose from the fuel
pump outlet (Fig. 35).
3. Make sure fuel hose attached to the fuel pump inlet
isfreeofobstructions.Also,makesurethatfuelshut--off
valve on fuel tank is open.
4. For fuel pump testing, place section of fuel hose on
fuel pump outlet and secure in place with hose clamp.
Place other end of fuel hose into alarge, graduated cyl-
inder sufficient enough to collect 1 quart (0.95 liter).
IMPORTANT: When testing the fuel pump, DO NOT
turn ignition switch to START.
5. Collect fuel in the graduated cylinder by turning igni-
tionswitchtotheRUNposition.Allowpumptorunforfif-
teen (15) seconds, then turn ignition switch to OFF.
6. Fuel collected in the graduated cylinder should be
approximately 16 fl oz (475 ml) after fifteen (15) sec-
onds.
7. Replace fuel pump if necessary.
8. Remove fuel hose from pump outlet and install ma-
chine fuel supply hose to the pump outlet. Make sure to
secure fuel hose with hose clamp.
9. Bleed the fuel system.
1. Fuel pump
2. Fuel pump inlet
3. Fuel pump outlet
4. Fuel hose (from tank)
Figure 35
1
3
2
4
FROM
TANK
TO ENGINE
Fuel Pump Specifications
Pump Capacity
64 fl oz/min (1.9 l/min)
Pressure 7 PSI (48.3 kPa)
Current Draw 2.0 amp
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