Chapter 3. AVIATION UNIT MAINTENANCE INSTRUCTIONS

TM 55-4940-353-13&P

CHAPTER 3

AVIATION UNIT MAINTENANCE INSTRUCTIONS

SECTION I. PREPARATION FOR INSTALLATION, STORAGE AND SHIPMENT

inspected for damage which may have occurred during

3-1.

The Model 321 Hose Tester is packed for

shipment. If any such damage is discovered, the

shipment in accordance with best commercial practice.

manufacturer should be notified and a claim filed with

It is blocked in a 275-pound test carton which is then

the carrier. All units are carefully inspected prior to

sealed and marked per MIL-STD-129. The Hose Tester

shipment. When storage or reshipment is required,

is shipped completely assembled, except for the 16

packing materials and techniques equal to those used in

adaptors which are boxed separately and enclosed in

the initial shipment must be utilized.

the carton. When received at the installation site it

should be removed from the container and carefully

SECTION II. INSTALLATION

racks at either side of the upper surface of the reservoir

3-2.

Refer to Figure 2-1 and proceed as follows:

(5, figure 2-1).

a. The Hose Tester may be floor mounted, or

d. Remove the top of the fill-vent strainer (4, figure

raised to a convenient height by placing it on a work

2-1) and fill the reservoir (5) with approximately five

bench. If it is desirable to secure the unit in place, four

gallons of test oil which conforms to MIL-H-5606 or MIL-

mounting holes, which will accept 1/4 inch screws or

H-82382 until the oil level can be observed in the sight

bolts, are provided in the bottom flange of the reservoir

glass (20) on the side of the reservoir (5) and replace

(5, figure 2-1).

the top of the fill-vent strainer.

b. With the Hose Tester in place, a source of

e. Fill the air lubricator (8) with SAE-10 oil.

compressed air capable of supplying 50 scfm air at 100

psi must be connected to the air inlet port (1, figure 2-1)

using standard shop techniques. A JIC-8 male flared

f. Suitable arrangements must be made to protect

fitting is provided for this purpose.

the operator and equipment from harm should a hose

rupture under test. Such safety shielding may vary from

installation to installation, so no specific

c. Remove the 16 adaptor fittings from their box

recommendations can be made.

and place them in the appropriate holes in the storage

3-1