TM 9-2320-269-20-1
ORGANIZATIONAL TROUBLESHOOTING - CONTINUED
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
AIR SYSTEM AND BRAKES - CONTINUED
QUICK AIR PRESSURE LOSS
Step 1. Check for moisture and corrosion in air reservoirs (1).
CAUTION
Aways open draincocks by hand. To avoid equipment damage, never hit with a tool.
a. Turn draincocks (2) open, and let air drain.
b. Remove draincocks (2) using 9/16-inch wrench, and inspect inside of reservoirs (1) for corrosion.
c. If corrosion is found, replace reservoirs (1) (page 2-570 and 2-574) as needed.
d. Install draincocks (2) using 9/16-inch wrench, and close.
Step 2. Check air reservoirs (1) for leakage.
a. Coat welds (3) and draincocks (2) with soap solution.
b. Start engine (TM 9-2320-269-10), let air pressure build up, and shut off engine (TM 9-2320-269-
10).
c. If draincocks (2) show signs of leakage, tighten using 9/16-inch wrench, or replace (page 2-585)
as needed.
d. If reservoirs (1) show signs of leakage, replace (page 2-570 and 2-574) as needed.
Step 3. Inspect brake hoses (4) for damage.
a. Using diagrams (page 2-608), find brake hoses (4).
b. If hoses (4) are bent or pinched between vehicle components, remove, reroute, or replace as
needed (page 2-567).
c. If hoses (4) are damaged or collapsed, replace as needed (page 2-567).
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