Toro Groundsmaster 3280-D Service Manual page 302

Testing the Fuel Pump Capacity (continued)
Electrical System: Testing the Electrical Components
6. The amount of fuel collected in the graduated cylinder should be
approximately 400 ml (13.5 fl oz) after 30 seconds.
7. Replace fuel pump if necessary. Install fuel hose to carburetor inlet.
Fuel Pump Specifications
Pump Capacity
Pressure
800 ml/minute (27 fl oz/minute)
19.6 to 29.4 kPa (2.8 to 4.3 psi)
Page 6–74 Groundsmaster ® 3280-D/3320
05138SL Rev B