Toro Groundsmaster 3280-D Service Manual page 299

Testing the Fuel Pump Capacity
Groundsmaster ® 3280-D/3320
05138SL Rev B
Diesel fuel is highly flammable.
• Use caution whenever you handle diesel fuel.
• Do not smoke while testing the fuel pump.
• Do not test the fuel pump while the engine is hot.
• Ensure that there is adequate ventilation when testing.
• Always wipe up any spilled diesel fuel before starting the engine.
1. Park the machine on a level surface, lower the cutting deck, set the parking
brake, and shut off the engine. Ensure that the key switch is in the O
position.
2. Unlatch the hood and raise it.
3. Ensure that the fuel hoses attached to the fuel pump are free of obstructions.
4. Disconnect the fuel pump discharge hose from the inlet fitting of the
fuel/water separator or filter.
5. Place the disconnected end of the pump discharge hose into a large,
graduated cylinder sufficient enough to collect 0.9 L (32 fl oz).
When testing the fuel pump output, do not turn the key switch to
the S position.
TART
6. Turn the key switch to the O
cylinder. Allow the pump to run for 15 seconds and then turn the switch to
the O position.
FF
Note: The amount of fuel pumped in 15 seconds must be approximately
475 ml (16 fl oz).
7. Replace the fuel pump if output specification is not met.
If the fuel pump is replaced, ensure that replacement pump is the
correct pump for your Groundsmaster by using your Parts Catalog.
If incorrect pump is used, the fuel system damage can occur.
8. Connect the fuel pump discharge hose to the fuel/water separator or filter.
Ensure to secure the hose with the hose clamp.
9. Prime the fuel system; refer to
Fuel Pump Specifications (for Models 30344 and 30345)
Pump Capacity
Pressure
Maximum Current Draw
DANGER
IMPORTANT
position and collect the fuel in the graduated
N
IMPORTANT
Priming the Fuel System (page
1.9 L/minute (64 fl oz/minute)
48.3 kPa (7 psi)
2.0 A
Page 6–71 Electrical System: Testing the Electrical Components
FF
4–16).