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

Visual Inspection

CTIS operates.

REASON FOR QUESTION

Air hoses free from kinks and

Is air present at cab

leaks.

leveling valve tee fitting

If air is present, cab leveling

Variable control check valve

input port?

valve tee fitting is faulty.

OK.

Air hose 503 OK.

Air hose 522 OK.

Cab leveling valve OK.

Air spring cylinders OK.

Air hoses 504 and 505 OK.

POSSIBLE PROBLEMS

Faulty cab leveling valve tee

fitting.

Faulty air hose 506.

Faulty air/hydraulic manifold.

Faulty pressure protection

valve.

Faulty air hose 501.

Go to step 10

YES

of this fault.

Replace cab leveling

valve tee fitting (para 16-8).

2-2234.12

Change 1