HS 311 - Connecting Jib Components

9
8. Bolt the TOP FITTING to tie rod, and bolt BOTTOM FITTING to BOOM. Bolt the
BOOM END FITTING to the BOOM & to the other end of the tie rod. (See Figure 2) Refer to
Jib Crane Drawing for hardware sizes, locations and quantities. For torque values, see Table
1.
10.
BOTTOM FITTING to BOOM
Raise jib into position and insert pivot bolts. Secure pivot bolts with hexnut. (see Figure 3)
Figure 2 Fitting to tie rod and boom assy
TOP FITTING to Tie Rod
BOTTOM FITTING to BOOM
BOOM END FITTING to BOOM
Figure 3 Insert Pivot Bolts
(4) HEX BOLT/SPLIT LOCK WASHER/HEX NUT REQUIRED
LOWER KNUCKLE ASSEMBLY
BOOM
OR
OR
UPPER KNUCKLE
ASSEMBLY
OR
OR
BOLT DIA. TORQUE
1/4" - 20 6 FT./LBS.
3/8" - 16 20 FT./LBS.
1/2" - 13 50 FT./LBS.
5/8" - 11 95 FT./LBS.
3/4" - 10 175 FT./LBS.
7/8" - 9 300 FT./LBS.
TABLE 1 - TORQUE SPECIFICATIONS