BOOM DOES NOT TELESCOPE OUT OR TELESCOPES OUT SLOWLY.

TM 9-2320-364-34-1

2-15. MATERIAL HANDLING CRANE TROUBLESHOOTING (CONT).

12. BOOM DOES NOT TELESCOPE OUT OR TELESCOPES OUT SLOWLY.

INITIAL SETUP

Tools and Special Tools

Materials/Parts - Continued

Tool Kit, General Mechanic's

Packing, Preformed (2) (Item 363, Appendix E)

(Item 240, Appendix F)

Packing, Preformed (3) (Item 389, Appendix E)

Cap and Plug Set (Item 26, Appendix F)

Packing, Preformed (3) (Item 398, Appendix E)

Pan, Drain 4 gal (Item 144, Appendix F)

Pin, Cotter (2) (Item 417, Appendix E)

Pressure Test Kit (Item 165, Appendix F)

References

Lifting Device (Minimum Capacity

TM 9-2320-364-10

200 lbs [91 kg])

TM 9-2320-364-20

Materials/Parts

Equipment Condition

Oil Hydraulic (Item 34, Appendix B)

Engine OFF, (TM 9-2320-364-10)

Tags, Identification (Item 72, Appendix B)

Parking brake applied, (TM 9-2320-364-10)

Lockwasher (4) (Item 282, Appendix E)

Wheels chocked, (TM 9-2320-364-10)

Packing, Preformed (9) (Item 337, Appendix E)

Outriggers down with weight off

Packing, Preformed (9) (Item 347, Appendix E)

vehicle suspension, (TM 9-2320-364-10)

START

KNOWN INFO

TEST OPTIONS

WARNING

Read WARNING

Unit Troubleshooting

Flowmeter test.

on Page 2-563

tasks completed.

Boom telescopes in.

REASON FOR QUESTION

Are 6 gpm (23 lpm) or more

POSSIBLE PROBLEMS

If TELE valve on four valve bank

measured from TELESCOPE

is faulty, pressure and flow to

(TELE) valve with valve

Four valve bank faulty.

telescope cylinders will be

Telescope cylinder faulty.

restricted.

isolated from telescope

cylinders?

Go to Step 5 of this

Fault.

YES

2-562