TM-9-2330-331-14-P

SEMITRAILER, FLATBED: BREAKBULK/CONTAINER TRANSPORTER, 34 TON, M872A4

TECHNICAL MANUAL; OPERATOR’S, ORGANIZATIONAL, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL WITH REPAIR PARTS AND SPECIAL TOOLS LISTS

DECEMBER 2005

TM-9-2330-331-14-P - Page 227 of 472

TM 9-2330-331-14&P

0044 00

AIR LEAKAGE TEST

INITIAL SETUP:

Equipment Conditions

Materials/Parts

• Semitrailer Coupled to Towing Vehicle with Air

• Dishwashing Compound (WP 0086 00-2)

System Pressurized (WP 0007 00-2).

Tools/Test Equipment

Personnel Required

• General Mechanic’s Tool Kit (WP 0077 00-9)

• Two

TEST

(1) Coat air lines, fittings, and airbrake chamber connections with soap and water solution. Inspect for air

bubbles. No air leakage is permissible.

(2) Tighten any leaking connections or replace defective components as required.

(3) Apply soap and water solution to exhaust check valve on underside of emergency relay valve. Place

service relay valve in emergency position by disconnecting either towing vehicle air line from semitrailer

air coupling.

(4) Replace air service valve if air bubble larger than 1 in. (2.5 cm) develops within three

seconds (WP 0042 00-1).

END OF WORK PACKAGE

0044 00-1/2 Blank