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

13.

Visual Inspection

CTIS operates.

REASON FOR QUESTION

Air hoses free from kinks and

Is air present at cab leveling

leaks.

valve input ports?

If air is present, cab leveling

Variable control check valve

valve is faulty.

OK.

Air hose 503 OK.

Air hose 522 OK.

Cab leveling valve tee

fitting OK.

Air hose 506 OK.

Air/hydraulic manifold OK.

Pressure protection valve OK.

Air hose 501 OK.

POSSIBLE PROBLEMS

Go to step 14

YES

of this fault.

Faulty cab leveling valve.

Faulty air spring cylinder(s).

Faulty air hose(s) 504 and/or

505.

Replace cab leveling

valve (para 16-8).

2-2234.20

Change 1