TM 9-2350-256-34-1
CAUTION
Do not overtighten the coil assembly at-
taching screw.
Excessive torque will
stretch the sleeve and core assembly and
raise the solenoid pull-in voltage.
(g) Press the inlet screen (38, fig. 3-10.4) into
the fuel inlet, and screw the valve stem (37) into the
valve body. Install the mounting bracket (2) on the
valve body as shown in figure 3– 10.8, and secure
with four screws (1, fig. 3-10.4).
(h) Test the fuel control valve flow rate as
follows:
1. Connect the fuel tube (5, fig. 3-10.2) to
the fuel control valve outlet elbow, and tighten the
compression nut (6). Clamp the assembled valve and
fuel tube to a stand or work bench as necessary to
simulate the position the fuel control valve will
assume when it is installed on the heater, and the
heater is installed in a vehicle.
CAUTION
The test must be performed while the
valve is in a position as close as possible
to its position on the installed heater.
Rotating the valve after it has been ad-
justed will alter the amount of head
against which the regulating valve has
been set and can significantly alter the
flow rate.
2. Connect a supply of fuel under a pressure
of 3 to 5 psi to the fuel control valve IN port, and
connect the test leads as shown in figure 3-10.9.
Place a container under the open end of the fuel tube
and apply fuel pressure.
3-18.18
Change 2
