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 leveling

leaks.

valve output ports?

If air is present, air hose(s) 504

Variable control check valve

and/or 505 is faulty.

OK.

Air hose 503 OK.

Air spring cylinders OK.

POSSIBLE PROBLEMS

Faulty air hose 522.

Faulty cab leveling valve tee

fitting.

Faulty air hose 506.

Faulty air/hydraulic manifold.

Faulty pressure protection

Go to step 7

valve.

YES

of this fault.

Faulty air hose 501.

Faulty cab leveling valve.

Faulty air hose(s) 504 and/or

505.

Replace air hose(s) 504

and/or 505 (para 23-3).

2-2234.6

Change 1