79
Maintenance
Check Ignition Transformer Spark
1. Turn on power switch in rear control box.
2. Turn the BURNER switches on.
3. Hold an insulated screwdriver touching one of
the springs and approximately 3/4 inches above
the other spring on the transformer. It should
be possible to jump a spark across the 3/4 inch
gap between the spring and the screwdriver. If
unable to generate a blue spark across this gap,
check the voltage at terminal spades of the 12
volt ignition control box. Voltage must be 12 VDC
minimum. If voltage is incorrect or not present,
check ground wiring.
4. Reposition ignition transformer and secure to
burner housing.
Fire Burners
1. Ensure that fuel oil pressure is 150 PSIG.
2. Turn the burner switch on.
3. Run the burner for 15 seconds maximum after
lighting, then shut down.
WARNING
To prevent an explosion or fire hazard, flues
must be covered by minimum 6 inches of
material when burners are in operation.
When testing burners, do not run burners for
more than 15 seconds if tank is empty.
Replacing Speed Pickup
1. Loosen locknut and remove old speed pickup.
2. Turn in the new speed pickup clockwise by hand
until the bottom end gently touches the internal
speed ring.
3. Back it out counter clockwise 1/2 to 3/4 turn.
4. Using a 1/2 inch wrench to hold the speed pick-
up, torque the locknut to 10 lb-ft (13 Nm) with
an 11/16 inch wrench.
Figure 93. Hydraulic Motor
WARNING
