CAB DOES NOT RAISE

TM 9-2320-366-20-3

z1. CAB DOES NOT RAISE

INITIAL SETUP

Equipment Condition

Tools and Special Tools

Engine shut down (TM 9-2320-366-10-1).

Tool Kit, Genl Mech (Item 46, Appendix C)

Air tanks drained (TM 9-232-366-10-1).

STE/ICE-R (Item 41, Appendix C)

Pan, Drain (Item 24, Appendix C)

Personnel Required

Goggles, Industrial (Item 15, Appendix C)

(2)

Transmitter, Pressure (Item 1, Appendix J)

Wrench, Torque, 0-200 lb-in. (Item 59, Appendix C)

Material/Parts

Key, Socket Head Screw (Item 38.1, Appendix B)

Rag, Wiping (Item 50, Appendix D)

Filter Element, Fluid (Item 21.1, Appendix G)

References

TM 9-4910-571-12&P

NOTE

On vehicles S/N 0001 through 7558, the hydraulic manifold,

P/N 12420621, was not originally equipped with an orifice

filter. Orifice filter, P/N 117073098-000, however, may have

been installed during previous maintenance to the hydraulic

manifold.

START

KNOWN INFO

TEST OPTIONS

Visual Inspection

Air/hydraulic power unit

REASON FOR QUESTION

Is orifice screw or orifice

oil level OK.

filter (if equipped) free of

If orifice screw and/or orifice

Air/hydraulic power unit

debris?

filter (if equipped) is clogged,

primed.

orifice screw and/or orifice

Hydraulic and air hoses

filter is faulty.

OK.

Air tanks charged.

Hydraulic oil filter OK.

Other hydraulic manifold

functions OK.

POSSIBLE PROBLEMS

Debris in orifice filter (if

equipped).

Clean orifice screw and/or replace

Debris in orifice screw.

YES

orifice filter (if equipped).

Faulty cab hydraulic latch.

Faulty hydraulic manifold CAB

TILT valve.

Faulty cab hydraulic cylinder.

2-2414

Change 1