- 12 -
Fuel System Air Bleeding
Bleeding Screw
This section only pertains to Diesel engines.
The engine and burner are pretested and
bled during factory run in. If the fuel tank is permitted to run dry or when changing filters, bleed-
ing may be necessary to restart the burner.
Your fuel tank is equipped with a visual fuel level gauge. Avoid letting the fuel level drop below
the lowest visible level. There is some reserve below this level, but your burner may draw air
due to splashing of fuel while transporting the unit. Once air gets into the fuel supply line, the
burner will run erratically or not at all.
To bleed the diesel burner:
1)
Attach a 1/4" ID hose to the bleeder screw. Run the other end of the hose into a clean
collection can or bottle.
2)
Start the engine.
3)
Turn the temperature control system on so that the burner will try to ignite.
4)
Loosen the bleeder screw and allow the fuel to flow through the hose into the collection
can. Once there are no more bubbles in the fuel stream, tighten the screw immediately.
5)
Turn off the temperature control system. When you restart the temperature control, the
burner should ignite.
Fuel Level
Gauge
Fuel Tank
Collection Can
Hose
