Jlg 40H Service Manual User Manual download pdf (Page 35)

SECTION 2 - PROCEDURES

3120240 – JLG Lift – 2-15

3. Remove control console from the platform.

4. Remove platform from fly boom assembly.

5. Remove carrier tube and power track from right side

of the boom assembly.

NOTE: Steps 6 and 7 apply to 3 Section Boom Only.

6. Removal and disassemble of the extension chain

attachment and adjustment assembly (mounted at

aft of boom base section) as follows:

a. Remove jam nut and nut which secures the

chain attachment clevis bolt to the chain adjust-

ment block.

b. Remove the bolts and washer which secure the

extension chain attachment, assembly to the

base boom section; remove chain attachment

assembly from the base boom section mounting

point.

c. Remove the cotter pins from the clevis pins.

Remove clevis pins and washers from the chain

attachment clevis bolt; remove the chain attach-

ment clevis from the chain.

7. Removal and disassemble of the retraction chain

attachment and adjustment assembly as follows:

a. Remove nuts and washers from the chain

attachment shield, and remove shield from the

boom base section.

b. Remove the jam nut and nut from the threaded

end of the tension-adjusting clevis bolt. Remove

the entire tension-adjusting assembly from the

boom-mounted bracket.

c. Remove the cotter pins from the clevis pins

which secure the retraction chains, to the clevis

bolt assembly.

d. Remove cotter pins, nuts and bolts securing

chain attach blocks to clevis bolt assembly.

Remove attach blocks.

e. Separate top and bottom clevis bolt assembly

plates. Remove clevis bolt from bottom plate.

8. Remove the setscrews from the pin which attaches

the telescope cylinder rod end to the boom base

section; use a brass drift to remove the pin.

NOTE: Note and record the number and thickness of any

wear pad shims during wear pad removal.

9. Remove bolts which secure the wear pads to the

inner forward surfaces of the boom base section.

Remove the wear pads from the top, sides and bot-

tom of the boom base section.

NOTE: Steps 10, thru 15 apply to 3 Section Boom Only.

10. Using suitable lifting equipment, carefully slide the

assembled mid and fly sections from the base sec-

tion. Place the mid and fly sections on a suitable

trestle.

11. Remove the setscrew which secures the sheave pin

at the aft end of the midsection. Use a suitable brass

drift to remove pin. Remove sheave assembly.

12. Remove the bolts, washers and bar from the trun-

nion pins which secure the cylinder base to the

boom mid section; use a suitable slide hammer to

remove the pins.

WHEN REMOVING THE TELESCOPE CYLINDER FROM THE

BOOM, IT MAY BE NECESSARY AT SOME POINT TO TURN THE

CYLINDER SLIGHTLY IN ORDER TO CLEAR ASSEMBLIES

MOUNTED WITHIN THE BOOM CARE MUST BE TAKEN TO MOVE

THE CYLINDER SLOWLY FROM THE BOOM, DAMAGE TO COM-

PONENTS MAY RESULT FROM FORCIBLE IMPACT WITH THESE

ASSEMBLIES.

13. Pull the cylinder partially from the rear of the boom

mid section; secure the cylinder with a suitable sling

and lifting device at approximately the center of

gravity.

14. Carefully remove the telescope cylinder and sheave

assembly. Place the cylinder on a suitable trestle.

15. Remove bolts and washers from the sheave pin;

remove the pin and the sheave assembly.

NOTE: Steps 16, thru 19 apply to 2 Section Boom Only.

16. Remove bolts and washers from the pin securing

telescope cylinder to fly boom; use a brass drift to

remove the pin.

17. Pull the cylinder partially from the rear of the boom

mid section; secure the cylinder with a suitable sling

and lifting device at approximately the center of

gravity.

18. Using suitable lifting equipment, carefully slide the

fly section from the base section. Place the fly sec-

tions on a suitable trestle.

19. Remove the bolts which secure the wear pads to the

aft ends of the fly and mid sections; remove the wear

pads from the boom sections.

NOTE: Steps 20, thru 28 apply to 3 Section Boom Only.

20. Remove the setscrew which secures the sheave pin

at the aft end of the midsection. Use a suitable brass

drift to remove pin. Remove sheave assembly.

21. Remove the bolts, washers and bar from the trun-

nion pins which secure the cylinder base to the

1 2 ... 30 31 32 33 34 35 36 37 38 39 40 ... 151 152

Comments to this Manuals

No comments

Jlg 40H Service Manual User Manual Page 35

Comments to this Manuals

Related products and manuals for Special machinery Jlg 40H Service Manual