Lull 6K Service Manual - Manual (Page 403)

Boom and Transfer
Service Manual — Models 644B, 6K, 844C, 8K, 1044C, 10K 6-153
Fig. 6-165: Inner Boom Cross-Section at Window
2. (Ref. Fig. 6-165) Place a straight edge against the bottom surface of
the inner boom section. Measure the distance from the straight edge to
the bottom surface of the boom tube. This distance should not exceed
1/4" (0.25"). The maximum deflection will be found just in front of the
middle (forward) boom section.
3. (Ref. Fig. 6-165) The side walls may also deflect outward at the
window areas. Take this measurement across the inner boom tube,
through the windows. Maximum allowable deflection is 3/16" (0.19) per
side. The maximum allowable inner boom tube width is 10-5/8"
(10.625"), measured through the windows.
Fig. 6-166: Middle (Forward) Boom Cross-Section at Window
1/4" (0.25") Max.
3/16" (0.19")
J
1085
10 5/8" (10.625")
1/4" (0.25") Max.
3/16" (0.19")
J
1085
12 7/8" (12.875")