ENG - 20
03917401.ENG rev. 0
(g) OTHER CHECKINGS
(g.a) Carefully check the engine positioning points.
(g.b) Check all screws are correctly tightened.
(g.c) Check all water, oil and gas-oil pipe nipples, verifying if all them are well connected and correctly tightened.
(g.d) Check exhaust and transmission systems.
5.1.1 BLEEDING AIR FROM THE FUEL SUPPLY SYSTEM
On the first start-up of the engine, and if this has operated with
the fuel tank empty, air may enter the feed system, and it is
necessary to purge this.
To carry out the priming/purge of the fuel system, proceed
as follows:
- Check fuel cock located at the fuel tank to be
opened.
- Loosen air vent plug (1) (approximately 1.5 turns).
- Unlock the priming pump moving its plug counterclockwise.
(Fig 5.3.1 and 5.3.2)
- Operate the priming pump (Fig. 5.3.3)
- When the fuel flows free of bubbles, lock the priming pump,
then tighten the plug (1) (Fig 5.3.1).
-Clean up fuel spillage.
Once this operations have been terminated proceed to start the
engine (see heading 6.1)
Fig. 5.3.1
Fig. 5.3.2
Fig. 5.3.3
Atention!
If the vent plug (1) is closed before the priming puma plunger is locked (2), fuel pressure acts on the feed
puma, resulting in inability to restore the plunger.
