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0217 IH-6513
MAINTENANCE CONTINUED
FUEL FILTER
The fuel filter should be cleaned at least twice per
heating season. Clean the filter by rinsing it in clean 1-K
Kerosene. Contaminated fuel could make cleaning the
fuel filter necessary immediately.
NOTE: To remove, turn filter 90° counterclockwise.
(See Figure 9)
SPARK PLUG
Clean and re-gap every 600 hours of operation, or
replace as needed. After removing the spark plug,
clean the terminals with a wire brush. Re-gap the
terminals to 0.140". (See Figure 10)
PHOTOCELL
The photocell should be cleaned using a cotton swab
dipped in alcohol or water at least once per heating
season, or more depending on conditions. (See Figure 11)
PUMP PRESSURE
1. While heater is operating, turn adjusting screw
clockwise to increase, counterclockwise to
decrease pressure. (See Figure 12)
2. Correct pump pressure is as follows:
MODEL NUMBER
PUMP PRESSURE
H-6513
5.5 PSI
H-6514
8.5 PSI
NOZZLES
Nozzles should be cleaned or replaced at least once
per heating season. Contaminated fuel could make this
necessary immediately.
1. To clean dirt from nozzle, blow compressed air
through nozzle front. (See Figure 13)
NOTE: It may be necessary to soak the nozzle
in 1-K kerosene to loosen any dirt particles.
Figure 9
Fuel Filter
Fuel Line
Side
Cover
Figure 10
Burner
Head
Spark
Plug
Gap
Ignitor
Wire
Figure 11
Photocell
Photocell
Wire
Photocell
Lens
Figure 12
Pressure Valve
Adjusting Screw
Figure 13
Nozzle Face
Burner Head
Nozzle
