SERVICE BRAKES ON ALL AXLES DO NOT APPLY OR APPLY SLOWLY. (Cont) -725550564

TM 9-2330-385-14

5. SERVICE BRAKES ON ALL AXLES DO NOT APPLY OR APPLY SLOWLY (CONT).

TEST OPTIONS

KNOWN INFO

WARNING

Read WARNING

Truck air system OK.

Pressure test.

on Page 4-275

Air lines, fittings, load sensing

valve and quick release

REASON FOR QUESTION

valve OK (free of leaks).

Is load sensing valve

If load sensing valve is

adjusted correctly and supply-

POSSIBLE PROBLEMS

misadjusted or fails closed, a

ing 30 to 125 5 psi (207 - 862

lack of air pressure will prevent

Load sensing valve faulty.

34 kPa)?

application of brakes.

Quick release valve faulty.

Adjust or replace load

sensing valve

Verify repair, go to

Step 4 of this Fault.

YES

4-274