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 290 of 528

TM 9-2330-356-14

includes a precheck valve, load/unload valve, and float

(b)

The fluid raises a float in the float valve

valve (fig. 4-151).

which shuts off fluid flow through port Y (load/unload

(1)

Precheck Valve.

valve must be in a load position).

(c)

With flow shut off, the pressure in the

(a)

In the open position, this valve allows

line to port Y is equalized (fig. 4- 151B). A spring in the

fluid from the inlet of the 4-inch control valve to reach the

4-inch control valve then closes the 4-inch control valve

float valve at port X (fig. 4-151A).

and stops bottom load operation.

Figure 4-147. Dispensing System (M967 and M967A1).

TA502367

4-154