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

14.

Visual Inspection

CTIS operates.

REASON FOR QUESTION

Air hoses free from kinks and

Is air present at air spring

leaks.

cylinder output ports?

If air is present, air hose(s) 504

Variable control check valve

and/or 505 is faulty. If air is

OK.

not present, air spring

Air hose 503 OK.

cylinder(s) is faulty.

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.

Cab leveling valve OK.

POSSIBLE PROBLEMS

Faulty air spring cylinder(s).

Faulty air hose(s) 504 and/or

Replace air spring

505.

YES

cylinder(s) (para 16-9).

Replace air hose(s)

504 and/or 505 (para 23-3).

Change 1