BOOM DOES NOT TELESCOPE OUT OR TELESCOPES OUT SLOWLY. (Cont) -726250654

TM 9-2320-364-34-1

12. BOOM DOES NOT TELESCOPE OUT OR TELESCOPES OUT SLOWLY (CONT).

KNOWN INFO

TEST OPTIONS

WARNING

Read WARNING

Are 0 gpm

Unit Troubleshooting

Flowmeter test.

on Page 2-571

(0 lpm)

tasks completed.

measured

Boom telescopes in.

REASON FOR QUESTION

Four valve bank is OK.

at four valve bank with

If piston seals are faulty in

cylinder on overload sensing

cylinder that is active (not

POSSIBLE PROBLEMS

system (OSS) box side of

isolated from circuit), more than

boom isolated from (discon-

0 gpm (0 lpm) will be measured. If

Telescope cylinder faulty.

nected) telescope circuit and

piston seals are faulty in cylinder

cylinder not moving?

that is isolated from

(disconnected) circuit, 0 gpm

(0 lpm) will be measured.

Replace telescope

cylinder not on OSS

side of boom

(Para 16-10).

Verify repair, go to

Step 6 of this Fault.

YES

Replace telescope

cylinder on OSS side

of boom (Para 16-10).

Verify repair, go to

Step 6 of this Fault.

2-570