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PUMP PURGE
NOTE: to protect the pump gears, it is advisable to lubricate the pump prior to purging a lift
system. Apply oil through the VACUUM PORT (C).
A) SINGLE LINE (GRAVITY FEED SYSTEM)
A) Loosen the bleeder valve (A) until oil flows out. Tighten the bleeder valve securely and
start burner.
B) When bleeding the pump by pressure.
1) Loosen the bleeder valve (A).
2) Disconnect nozzle oil supply line at the pump
nozzle port (B).
3) Attach a flexible plastic tube to the pump noz-
zle port, directing the oil flow into a bucket.
4) Loosen the screws securing the air tube cov-
er, allowing it to be removed freely.
5) Holding the air tube cover in its proper loca-
tion start the burner.
6) When the solenoid valve is engaged, approx-
imately 10 seconds after starting, remove the
air tube cover and shine a light source on the
photo-cell, allowing it to see false light.
7) Run the burner until the fuel pump has been
purged of air, then tighten the bleeder valve
and immediately shut down the burner.
8) Reinstall the air tube cover and nozzle line.
D6177
9) The burner can now be started normally.
WARNING: Omitting steps 2 and 3 will result in a collection of unburned oil in the com-
bustion chamber creating a hazardous situation upon burner startup.
B) TWO LINE (LIFT SYSTEM)
Turn off the main power source to the burner and remove the air tube cover. Shine a light
source on the photo-cell (now visible where the air tube cover was removed), return power
to the burner and activate the burner. With the light source in place, the burner will operate
in prepurge only. Once the burner is purged, turn off the power source and replace the air
tube cover. Return power to the burner. The burner is now ready to operate.
ATTENTION: It is important that the fuel line be completely sealed and free from air
leaks or any internal blockages,
IMPORTANT! WHEN THE BY-PASS PLUG IS INSTALLED, A TWO PIPE SYSTEM
MUST BE USED OR FAILURE OFTHE PUMP SHAFT SEALWILL OCCUR.
F10- 11