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 45 of 528

TM 9-2330-356-14
1. Push crank IN for low speed operation.
2. Pull crank OUT for high speed operation.
3. Rotate crank counterclockwise to lower landing gear legs.
4. Rotate crank clockwise to raise landing gear legs.
TA502281
Figure 2-3. Operation of Two-Speed Landing Gear.
f. If coupling to an M931A1 or M932A1 towing
vehicle, secure sand shoes in a swing-a-way position
rearward to the semitrailer, using chain “assembly
provided.
If ground boards were used, stow them in their
brackets at each side of semitrailer (fig. 2-2).
2-4.
Release of Fail-Safe Brakes
NOTE
On M970 and M970A1, brakes will not
release unless hose reel cabinet is closed.
a.
Reserve Air Release.
If semitrailer is to be moved by
other than a towing vehicle, push brake release plunger on
roadside of semitrailer to release fail-safe brakes
(fig. 2-4). Air in the front reservoir allows the brakes to
release twice. When pressure falls under 55 pounds, the
air reservoir must be recharged either by connecting air
lines to tractor or by using a standard air hose and filling
reservoir through filler valve (fig. 2-4). When filling
through filler valve, only front (secondary) reservoir is
filled. Fill to air gage reading of 90-100 psi. A standard tire
gage can be used to check the pressure.
b.
Manual Release (Caging) (M967, M969, and M970
except M970 SN TC-0843, TC-0844, and TC-103 thru TC-
178) (Fig. 2-5). To manually release the fail-safe brakes when
no air is available, use the following procedure:
(1) Block
wheels to prevent
semitrailer
movement.
Figure 2-4. Location of Brake Release Plunger
Change 3
2-3


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