TM-9-2330-356-14
SEMITRAILER, TANK: 5000 GALLON, BULK HAUL, SELF LOAD/UNLOAD M967 AND M967A1; SEMITRAILER, TANK: 5000 GALLON, FUEL DISPENSING, AUTOMOTIVE M969 AND M969A1; SEMITRAILER, TANK: 5000 GALLON, FUEL DISPENSING, UNDER/OVERWING AIRCRAFT M970 AND M970A1
TECHNICAL MANUAL; OPERATOR’S, UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL
OCTOBER 1990
TM-9-2330-356-14 - Page 282 of 528
TM 9-2330-356-14
(m)
Shut off engine (para 2-10).
(n)
Replace plastic plug in needle valve.
(o)
Remove gage from underwing nozzle
and stow nozzle.
(2)
Removal.
(a)
Disconnect the two nylon tubes from the
4-inch control valve at points A and B (fig. 4-135).
(b)
Remove the two nuts and bolts from the
two couplings (fig. 4-135) and remove the couplings. Slide
gaskets onto mating pipes and remove the control valve
assembly.
(c)
Place control valve assembly on a clean
surface and remove tube elbow (1, fig. 4-136) from control
valve.
(d)
Unscrew tee (3) from control valve and
remove tee (3), drain cock (2), and tube fitting (4) as an
assembly.
(e)
Unscrew drain cock (5) from control
valve.
(3)
Installation.
(a)
Remove drain plug from new control
valve and install drain cock (5) (fig. 4-136).
(b)
Install drain cock (2), tee (3), and tube
fitting (4) assembly onto control valve.
(c)
Install tube elbow (1) onto control valve.
TA099867
Figure 4-136. Removal of Fittings From 4-Inch
Control Valve.
(d)
Position control valve, and slide
coupling gaskets over valve ends (para 4-85). Install
couplings.
(e)
Connect the two nylon tubes (fig. 4-135)
at A and B.
g.
3-inch Control Valve (Deadman Valve) (M970 and
M970A1).
(1)
Adjustment.
(a)
Locate needle valve (fig. 4-137) and
remove plastic plug.
(b)
Using a 4-inch-long screwdriver, close
needle valve (fig. 4-134) completely by turning adjusting
screw clockwise.
(c)
When closed, turn adjusting screw five
turns counterclockwise to adjust valve to proper setting.
TA099868
Figure 4-137. Location of Needle Valve.
(2)
Removal (Fig. 4-138).
(a)
Disconnect and tag the five nylon tubes
from the control valve at points A through E.
(b)
Loosen fitting (1) and elbow (2), and
remove copper tubing (3).
(c) Remove two nuts from each of two
couplings (4 and 5) and remove the couplings.
(d)
Slide the coupling gaskets onto the
control valve and remove the control valve assembly.
4-146
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