Groundsmaster 4300--D Page 5 -- 43 Electrical System
Fuel Pump
The fuel pump used on the Groundsmaster 4300--D is
attached to the inside of the left side frame rail near the
fuel tank (Fig. 55).
IMPORTANT: When testing fuel pump, make sure
that pump is not operated without fuel.
DANGER
Becausedieselfuelishighlyflammable,usecau-
tionwhenhandlingit.Donotsmokewhiletesting
thefuelpump.Donottestfuelpumpwhileengine
is hot. Make sure that there is adequate ventila-
tion when testing. Always wipe up any spilled
fuel before starting the engine.
Fuel Pump Capacity Test
1. Park machine on a level s urface, lower cutting
decks,stopengineandengageparking brake.Remove
key from ignition switch. Raise and support operator
seat and hood.
2. Disconnect wire harness electrical connector from
theenginefuel stopsolenoidtopreventthe enginefrom
starting (see Fuel Stop Solenoid in this section).
3. Disconnect fuel hose (pump discharge) from the
fuel/water separator inlet fitting (Fig. 56).
4. Make surefuelhosesattached tothefuelpump,fuel
filter and fuel tank suction tube screen are free of ob-
structions.
5. Placedisconnectedfuelhoseintoalarge,graduated
cylinder 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 graduatedcylinder by turningigni-
tionswitchtotheRUNposition.Allowpumptorunfor15
seconds, then turn ignition switch to OFF.
7. Fuel collected in the graduated cylinder should be
approximately 16 fl oz (475 ml) after 15 seconds.
8. Replace fuel pump if necessary.
9. Install fuel hose to the fuel/water separator. Make
sure to secure fuel hose with hose c lamp.
10.Connectwire harnesselectricalconnectortotheen-
gine fuel stop solenoid.
11.Bleed the fuel system.
12.Lower and secure operator seat and hood.
Fuel Pump Specifications
Pump Capacity
64 fl oz/min (1.9 l/min)
Pressure 7 PSI (48.3 kPa)
Current Draw 2.0 amp
Figure 55
1. Fuel pump
2. Pump discharge hose
3. Hydraulic gear pump
1
2
3
1. Fuel/water separator
2. Fuel hose (from pump)
3. Inlet fitting
Figure 56
1
2
3
Electrical
System
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