(1)
Disconnect the unit from the source gas.
(2)
Use a screwdriver and remove the screws that hold the case together.
(3)
Separate the front panel from the rear case.
(4)
Locate the on/off switch.
(5)
With a hex wrench, loosen the set screw in the on/off knob and pull the
knob off.
(6) With a crescent wrench, loosen the nut securing the rotary valve
assembly to the front panel.
(7)
From the inside of the front panel, pull the rotary valve out of the hole.
(8)
Replace the green tubing on the proper two outlets.
(9)
Remove and replace the on/off switch.
(10) Reassemble in the reverse order.
c. Remove and Replace the PAP Gauge (Part Number 9407R). Refer to
figure 2-2 and follow these procedures to remove and replace the PAP gauge.
(1)
Disconnect the unit from the source gas.
(2)
Use a screwdriver and remove the screws that hold the case together.
(3)
Separate the front panel from the rear case.
(4)
Locate the PAP gauge.
(5) With a 7/16 inch nut driver or socket wrench, remove the two nuts on the
PAP gauge bracket.
(6)
Slide the gauge out of its position in the front panel.
(7)
Replace the tube.
(8)
Remove and replace the PAP gauge.
(9)
Reassemble in the reverse order.
MD0355
2-39
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