Harrington Hoists and Cranes LB Lever Hoist - (L5) - Manual (Page 39)

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7) Apply (G3) grease to the bearing part of (12) Frame B. Refer to Figure 6-7.
8) Install (12) Frame B onto (10) Frame A Stay Bolts. Make sure to align the top flat parts of the both
frames.
Figure 6-7 Frame B
6.4.5 Top Hook
 Install the (1) Top hook set between (10) Frame A assembly and (12) Frame B then Insert (3) Top
pin from the side of (12) Frame B to fasten (1) Top hook set. Refer to Figure 6-8.
Figure 6-8 Top Hook Attachment