TM 55-2210-223-34
TO 45A2-2-14-22
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
7. EQUALIZING RESERVOIR REDUCTION IS TOO FAST OR TOO SLOW WITH SERVICE APPLICATION.
Step 1. Check to see if equalizing reservoir piping or fittings are leaking.
Locate leakage and tighten or replace piping and/or fittings.
Step 2. Check to see if automatic brake valve is defective. (Refer to malfunctions 21 and 22.)
Disassemble, clean, and repair or replace automatic brake valve (para 4-11).
8. BRAKE PIPE REDUCTION IS TOO SLOW.
Step 1. Check to see if the exhaust orifice in automatic brake valve is dirty or defective.
Clean or replace exhaust orifice (para 4-11).
Step 2. Check to see if automatic brake valve is defective. (Refer to malfunctions 21 and 22.)
Disassemble, clean, and repair or replace automatic brake valve (para 4-11).
9. AUTOMATIC BRAKE DOES NOT APPLY FOLLOWING A BRAKE PIPE REDUCTION.
Step 1. Check to see if brake pipe is fully charged.
Charge brake pipe.
Step 2. Check to see if the brake pipe cutout cock is closed.
Open brake pipe cutout cock.
Step 3. Check to see if main reservoir cock is partially open.
Close cock.
Step 4. Check to see if there is a leak in pipe 16.
Locate leakage and repair or replace pipe 16 (para 4-11).
Step 5. Check to see if pipe 16 and 20 double check valve is defective.
Disassemble and repair or replace double check valve (para 3-54).
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