Lull 944E-42 Service Manual User Manual download pdf (Page 497)

100

101

8.245

Model 644E-42/944E-42 Rev. 6/04

Hydraulic System

5. Place an Accident Prevention Tag on both the

ignition key switch and the steering wheel, stating

that the vehicle should not be operated. Refer to

Section 1.5, “Accident Prevention Tag Usage.”

6. Unlock, unlatch and open the engine cover. Allow

the hydraulic fluid to cool.

7. Remove all dirt and grease from the swing carriage

cylinders (2) and their hydraulic lines (3 and 4).

8. Label or otherwise mark the hydraulic lines (3 and 4).

9. Disconnect and cap all hoses and fittings, etc.

10. Use a sling and hoist or other suitable lifting device

to support the cylinders (5). Remove the bolt (6) and

nut (7) holding the center mounting pin (8) to the

pivot mount (9). Remove the pin.

11. Remove snap rings (10) and cylinder base end pins

(11) from the mounting plates (12) on carriage.

12. Identify and mark the location of the 1-1/2" I.D. shims

(13) at the base end of the cylinder.

13. Remove the cylinders (5) from the pivot mount (9)

and the mounting plates (12) using the strap sling

and hoist or other suitable lifting equipment. While

removing the cylinder(s), identify the locations of the

2" I.D. shims (14) at the rod end(s) of the cylinder(s).

DO NOT lose the bearing(s) (15), which may be

loose, in the cylinder rod end(s).

14. Wipe up any hydraulic fluid spillage in, on, near and

around the vehicle. Disconnect and cap all hoses

and fittings, etc.

WARNING: Hot hydraulic fluid can

cause severe burns. Wait for hydraulic fluid to

cool before servicing any hydraulic component.

WARNING: Escaping hydraulic fluid

under pressure can penetrate the skin, causing

death or serious injury. Relieve hydraulic

pressure before servicing any hydraulic

component.

MT1960

MT1970

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