Fuel System Bleeding - Zetor 3321 SUPER Operator's Manual

FUEL SYSTEM BLEEDING

Put the suitable vessel under the engine before bleeding to ketch dropping fuel from
the cleaner and injection pump.
Do the following:
- Prime the fuel system by several strokes of hand priming pump (1).
- Loosen the screw of fuel cleaner input fitting (2) and let escape the foam.
- Retorque the screw (2) and repeat the process until the clean foam-free fuel
fluently leaks after screw loosening.
- Bleed the injection pump by the same way by means of screw located on injection
pump case (3).
MAINTENANCE INSTRUCTIONS
A 150 A 151