Beckett AF, AFG, Oil Burner !

Page 14 RWB 6104 BAFG R02

Perform regular maintenance Check all wiring for secure connections or insula-

tion breaks.

Check the pump pressure and cutoff function.

Check primary control safety lockout timing.

Check ignition system for proper operation.

Inspect the vent system and chimney for soot ac-

cumulation or other restriction.

Clean the appliance thoroughly according to the

manufacturer’s recommendations.

Check the burner performance. Refer to the sec-

tion “Set combustion with test instruments”.

It is good practice to make a record of the service

performed and the combustion test results.



Figure 8. Blower wheel assembly

SK9190

Use a Feeler Gauge to set

the gap to;

AF = 0.125 +1/64 inch

AFG = 0.030 +1/64 inch

Replace the oil supply line ﬁ lter. The line ﬁ lter car-

tridge must be replaced to avoid contamination of

the fuel unit and nozzle.

Inspect the oil supply system. All ﬁ ttings should

be leak-tight. The supply lines should be free of

water, sludge and other restrictions.

Remove and clean the pump strainer if applica-

ble.

Replace the nozzle with an equivalent nozzle.

Clean and inspect the electrodes for damage, re-

placing any that are cracked or chipped.

Check electrode tip settings. Replace electrodes

if tips are rounded.

Inspect the igniter spring contacts.

Clean the cad cell grid surface, if necessary.

Make sure Low Firing Rate Bafﬂ e is in place if

required for the burner application. Omitting the

bafﬂ e can result in unacceptable burner combus-

tion.

Inspect all gaskets. Replace any that are dam-

aged or would fail to seal adequately.

Inspect the compustion head and air tube. Re-

move any carbon or foreign matter. Replace all

damaged units with exact parts.

Clean the blower wheel, air inlet, air guide, burner

housing and static plate of any lint or foreign ma-

terial.

If motor is not permanently lubricated, oil motor

with a few drops of SAE 20 nondetergent oil at

each oil hole. DO NOT over oil motor. Excessive

oiling can cause motor failure.

Check motor current. The amp draw should not

exceed the nameplate rating by more than 10%.



Do not tamper with the burner or controls or make

any adjustments unless you are a trained and

qualiﬁ ed service technician.

To ensure continued reliable operation, a quali-

ﬁ ed service technician must service this burner

annually.

More frequent service intervals may be required

in dusty or adverse environments.

Operation and adjustment of the burner requires

technical training and skillful use of combustion

test instruments and other test equipment.

Tampering with or making incorrect

adjustments could lead to equip-

ment malfunction and result in

asphyxiation, explosion or ﬁ re.

WARNING

!Annual Professional Ser-

vice Required

Replace the blower wheel:

Turn off all power to the burner before servic-

ing.

Disconnect the burner motor wires.

Remove the bolts securing the motor to the

burner housing.

Remove the motor and blower wheel.

Remove the existing blower wheel.

Referring to the ﬁ gure below, slide the new

blower wheel onto the shaft.

Use a feeler gauge to set the wheel-to-motor

gap, as shown below. (AF = 0.125 +1/64 inch,

AFG = 0.030 +1/64 inch)

Slide blower wheel toward motor until it con-

tacts feeler gauge.

Rotate the blower wheel until the setscrew is

centered on the ﬂ at of the motor shaft. Tighten

the setscrew to secure the wheel.

DO NOT use a motor that has endshield open-

ings outside the blower wheel circumference

(represented by the dashed line).

Install the motor on the burner housing. Tighten

screws. Reconnect wires.

Restore power, start the burner and perform

combustion tests. Refer to the section “Set

combustion with test instruments”.