AIR SYSTEM LEAKAGE TEST

TM 9-2320- 209-20-3-1

The general cleaning covered by other manuals and references

refer to TM 9-214.

called out in this manual are as follows:

TM 9-247 Materials Used for Cleaning, Preserving, Abrading and Cementing

Ordnance Materiel and Related Materials Including Chemicals.

TM 9-214 Inspection, Care and Maintenance of Antifriction Bearings.

1-4. PAINTING. Instructions for the preparation of the material for painting, how

to paint, and material to be used are in TM 43-0139. Instructions for camouflage

painting are contained in TB 43-0209. Stenciling and marking must be done periodically

due to weathering or repainting. Instructions for marking military trucks is called out

in TB 43-0209.

1-5. AIR SYSTEM LEAKAGE TEST . The following procedures give instructions for

checking the compressed air system for leaks. These instructions are of a general

nature and are given here so that they do not have to be repeated throughout

a. With compressed air system filled, brush each air line and fitting with soapy

water.

b. If air bubbles appear, line or fitting is leaking.

c. Tighten fitting just enough to stop leak and do steps a and b again.

d. If you still have a leak, remove and replace line or fitting.

1-6. TORQUE VALUES . Critical torque values for a particular component are given

in the maintenance procedures. When torque values are not given, bolts, screws,

and nuts are to be tightened as given in table 1 1.

1-7. SPECIAL TOOLS AND EQUIPMENT . Special tools and equipment are provided

to make it easier to do particular maintenance tasks and to keep the truck in good re-

pair. Table 1-2 lists the special tools and equipment and gives a reference to the

maintenance paragraph where they are used and what they are used for.

1-8. COMMON TOOLS. In the maintenance procedures covered in this manual,

specific wrench sizes have been given, However, due to modifications made to equip-

ment in the field or in production at the factory, you may need different wrench sizes.

1-9. SAFETY INSPECTION AND TESTING OF LIFTING DEVICES. Refer to

TB 43-0142 for safety inspection and testing of lifting devices used in this manual.

1-10. FORMS AND RECORDS . Maintenance forms, records, and reports which are to

be used by maintenance personnel at all levels are listed in and prescribed by

TM 38-750.

1-11. EQUIPMENT IMPROVEMENT REPORT AND MAINTENANCE DIGEST (EIR MD)

AND EQUIPMENT IMPROVEMENT REPORT AND MAINTENANCE SUMMARY (EIR MS).

The quarterly Equipment Improvement Report and Maintenance Digest, TB 43-0001-39

series, contains valuable field information on the equipment covered in this manual.

The information in the TB 43-0001-39 series is compiled from some of the Equipment

Improvement Reports that you prepared on the vehicles covered in this manual. Many

of these articles result from comments, suggestions, and improvement recommendations

that you submitted to the EIR program. The TB 43-0001-39 series contains informa-

tion on equipment improvements, minor alterations, proposed Modification Work Orders

(MWO' s) , warranties (if applicable) , actions taken on some of your DA Form 2028's

(Recommended Changes to Publications) , and advance information on proposed changes