TM 10-4930-351-14
0083 00
PILOT VALVE TESTING
INITIAL SET-UP:
Tools:
Materials/Parts Required:
Tool Kit, General Mechanic Automotive
500 Gallon Collapsible Fuel Drum
(WP 0113 00, Item 1)
.
Pressurized Fuel Source
Pressure Gauge (WP 0113 00, Item 17)
NOTE
Pilot valve testing requires a 500 gallon fuel drum and a pressurized fuel source.
1.
Connect pressure control inlet to a fuel source.
2.
Connect pressure control outlet to fuel drum.
3.
Block pressure control off of ground as shown in figure 3.
4.
Remove bottom plug (figure 2, 14) from pressure control.
5.
Connect pressure gauge to pressure control where bottom plug was removed.
6.
Monitor pressure gauge while starting fuel flow into fuel drum. If pressure gauge reaches 5.5 psi and pressure control
does not shut off, press STOP button. Adjust pilot valve assembly as described in pilot valve adjustment procedure.
7.
If pressure control shuts off before pressure gauge reaches 4.5 psi, adjust pilot valve assembly as described in pilot valve
adjustment procedure.
PILOT VALVE ADJUSTMENT (Refer to figures 4 and 5.)
INITIAL SET-UP:
Tools:
Materials/Parts Required:
Tool Kit, General Mechanic Automotive
Silicone Compound (WP 0116, Item 12)
(WP 0113 00, Item 1)
O-Ring (WP 0117, Item 109)
1.
Remove capscrew (figure 4, 1) from housing bodies (2 and 3).
2.
Remove nuts (4) from four screws (5 and 6). Remove screws from housing bodies (2 and 3).
3.
Separate the housing bodies (2 and 3).
4.
Loosen nut (figure 4, 7) as shown in figure 5A.
0083 00-8
