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

10.

Visual Inspection

CTIS operates.

REASON FOR QUESTION

Air hoses free from kinks and

Is air present at air/hydraulic

leaks.

manifold BAG CYL port?

If air is present, air hose 506

Variable control check valve

is faulty.

OK.

Air hose 503 OK.

Air hose 522 OK.

Cab leveling valve tee fitting

OK.

Cab leveling valve OK.

Air spring cylinders OK.

Air hoses 504 and 505 OK.

POSSIBLE PROBLEMS

Faulty

air hose 506.

Faulty

air/hydraulic manifold.

Faulty

pressure protection

valve.

Faulty

air hose 501.

Go to step 11

YES

of this fault.

Replace air hose

506 (para 23-3).

2-2234.14

Change 1