CAB LEVELING AIR SPRINGS DO NOT OPERATE (CONT)

TM 9-2320-366-20-3

u3. CAB LEVELING AIR SPRINGS DO NOT OPERATE (CONT)

KNOWN INFO

TEST OPTIONS

11.

Visual Inspection

CTIS operates.

REASON FOR QUESTION

Air hoses free from kinks and

Is air present at air/hydraulic

leaks.

manifold AIR IN B port?

If air is present, air/hydraulic

Variable control check valve

manifold is faulty.

OK.

Air hose 503 OK.

Air hose 522 OK.

Cab leveling valve tee fitting

OK.

Air hose 506 OK.

Cab leveling valve OK.

Air spring cylinders OK.

Air hoses 504 and 505 OK.

POSSIBLE PROBLEMS

Faulty air/hydraulic manifold.

Faulty pressure protection

valve.

Faulty air hose 501.

Go to step 12

YES

of this fault.

Repair or replace air/hydraulic

manifold (para 19-4).

2-2234.16

Change 1