Lull 6K Service Manual User Manual
Page 381
Boom and Transfer
Service Manual — Models 644B, 6K, 844C, 8K, 1044C, 10K
6-131
Fig. 6-139: Hose Connections, 3-Section Boom
31. (Ref. Fig. 6-139) Connect the two (2) auxiliary hydraulic hoses (Item 1)
and two (2) carriage tilt hoses (Item 2) to the rear of the boom. Torque
the hose swivel nuts to 79–88 ft-lbs.
32. (Ref. Fig. 6-139) Connect the two (2) boom extension hoses (Item 3) to
the boom extension cylinder lines. Torque the hose swivel nuts to
79–88 ft-lbs.
33. Lubricate all pivot grease fittings with EP lithium based grease.
34. Install the boom elevation proximity switch in the transfer
carriage/boom cradle. (See “Installation” in Section 7).
35. Start the engine and extend the boom extension cylinder rod out three
feet. Shut the engine off.
36. Attach slings/chains to the middle and inner boom sections. Use a
crane to lift and install them in the outer boom section while attaching
the boom extension cylinder to the middle boom section.
J1077
1
2
3
4
#
Description
1
Auxiliary Hydraulic Hoses
2
Carriage Tilt Hoses
#
Description
3
Boom Extension Hoses
4
Boom Extension Cylinder