JLG G12-55A Parts Manual - Manual (Page 33)

BOOM
3126020 G10-55A, G12-55A 2-5
Figure 2-1 First Boom Section
Item Part Number Qty. Description Rev.
1 91566006 1 FIRST BOOM SECTION, (G12-55A Before S/N 0160038538) U
1001113690 1 FIRST BOOM SECTION, (G12-55A S/N 0160038538 & After) C
2 88212287 1 SOCKET HD CAPSCREW, 3/4-10X6, GR8
3 8310067 1 HEX LOCKNUT, 3/4-10
4 Ref CROWD CYLINDER, (see Figure 9-2 for details)
5 4892200 4 HARDENED WASHER, 3/4
6 0682214 4 HEX HD CAPSCREW, 3/4-10X1-3/4, GR8
7 91561156 1 CROWD CYLINDER SUPPORT
8 0641818 2 HEX HD CAPSCREW, 1/2-13X2-1/4, GR5
9 4761800 2 LOCKWASHER, 1/2
10 3311801 2 HEX NUT, 1/2-13
11 1360301 3 CLEVIS, BL 1066
12 91141301 2 BUSHING
13 91561250 1 SPRING STOP
14 91563219 3 SPRING
15 91561107 2 SPECIAL WASHER
16 3313001 3 HEX NUT, 1-1/4-7
17 3313002 3 HEAVY HEX JAM NUT, 1-1/4-7, (torque to 100 lb-ft)
18 Ref SECOND BOOM SECTION, (see Figure 2-3 for details)
19 2160002 2 LUBE FITTING, STRAIGHT, 1/8
20 91561090 1 CHAIN ADJ BLOCK
21 Ref EXTEND CHAIN, (see Figure 2-5, item 18 for details)
22 Ref RETRACT CHAIN, (see Figure 2-3, item 12 for details)
23 91513176 3 CHAIN PIN
24 88581115 6 RETAINING RING
25 3423247 1 BOOM PIVOT PIN
26 4711800 2 FLAT WASHER, 1/2
27 8522012 AR ANTI-SIEZE