BOOM GRT880 SERVICE MANUAL
4-50
Published 10/19/2017, Control # 618-00
9. Evenly tighten the setscrews on the opposite side until
both setscrews make contact with the cylinder, then
loosen both setscrews until a gap of 2 mm (0.08 in) is
attained between end of setscrews and cylinder. Secure
setscrews with nuts.
10. Remove the boom lifting device.
11. Activate the hydraulic system and remove the boom and
lift cylinder blocking devices. Lower the boom to
horizontal. Shut down the crane.
12. Connect the hydraulic lines to the telescope cylinder as
tagged prior to removal.
13. Connect any electrical wires as tagged prior to removal.
14. Refer to Boom Extension and Retraction Cables, page
4-51 for cable adjustments.
CAUTION
If removed, ensure the large access covers on each side
of the boom base section are installed before extending
the boom. Boom damage could occur.
FIGURE 4-131
Item Description
1 Flat Washer
2 Capscrew
3 Lift Cylinder Foot Pin
4Shim - 1mm
5Shim - 2mm
6 Spacer
7Nut
8 Setscrew
Item Description
1 32 4 5 6
3
7
8
9080-6
9080-7
Reference Only
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