TM 9-2540-205-24&P
PULSED FUEL METERING VALVE - STEWART-WARNER 10560M24B1, 10560G - Continued
LOCATION
ITEM
ACTION
REMARKS
INSTALLATION
56. Heating housing (1)
Pulsed fuel metering valve (2)
57.
Three screw assemblies (3)
58. Overheat switch (4)
Lead (5) and nut (6)
59. Terminal strip (7)
Lead (8) and screw assembly (9)
60. Pulsed fuel metering valve (2) Two new tie wraps (10)
ADJUSTMENT
NOTE
Install.
Screw in and tighten.
Screw on and tighten.
Screw on and tighten.
Install, and cut off excess.
If pulsed fuel metering valve adjustment is necessary, omit step 61.
61. Elbow (11)
Nut (12)
Screw in and tighten.
NOTE
When performing the pulsed fuel metering valve adjustment, the 24 Vdc current
must be filtered to 5 percent ripple maximum. You will need either a watch with a
second hand or a stopwatch to perform these adjustments. If fuel tube to fuel
regulator valve is not connected, omit step 62.
62. Heater housing (1)
Valve thermostat
Install (page 2-55 ).
63. Heater housing (1)
Igniter control
Install (page 2-49).
NOTE
Heater must be mounted and operating in the LO mode on the heater test stand
before adjustment can be performed.
NOTE
With the heater operating in the LO heat mode, compare fuel flow in heater test stand
sight glass to heater specifications. If fuel flow is within specifications, then operate
heater in the HI mode. Compare fuel flow in heater test stand sight glass to heater
specifications (page 3-85). If fuel flow is within specifications for LO and HI mode, no
further adjustment is necessary.
WARNING
The fuels this heater runs on are flammable. Do not smoke or allow open flame
nearby when performing these adjustments. Serious injury or death to
personnel could result if this warning is not observed.
NOTE
Check regulator adjustment internal hex screw for evidence of tampering. Scrape
off sealant. Set regulator adjusting internal hex screw between FLUSH and 2 turns
below the top.
3-96
