JLG G12-55A Parts Manual - Manual (Page 45)

BOOM
31200728 G10-55A, G12-55A 2-21
Figure 2-6 Extend Chains
Item Part Number Qty. Description Rev.
1 Ref FIRST BOOM SECTION WELDMENT, (see Figure 2-2 for details)
2 Ref SECOND BOOM SECTION WELDMENT, (see Figure 2-3 for details)
3 Ref THIRD BOOM SECTION WELDMENT, (see Figure 2-4 for details)
4 Ref FOURTH BOOM SECTION WELDMENT, (see Figure 2-5 for details)
5 91163163 3 SPRING
8 91165022 3 CHAIN ROLLER ASSY, (includes items 301 thru 303) A
10 0274675 3 CHAIN ASSY, (includes items 401 thru 406) C
29 91161266 1 PIN
31 91161267 1 PIN
43 91161218 3 WASHER
77 2160002 3 GREASE FITTING
80 91401189 2 PLATE
89 4761800 4 SPRING LOCKWASHER
98 88501314 6 HEX NUT, 7/8-14, GR5
99 88501414 6 HEX JAM NUT, 7/8-14, GR5, (torque to 100 lb-ft/136 Nm)
108 91041451 6 SHIM, 0.106 IN
118 0641808 4 HEX HD CAPSCREW, 1/2-13X1, GR5, (torque to 85 lb-ft/116 Nm)
130 91041449 AR SHIM, 0.060 IN
131 91041450 AR SHIM, 0.0478 IN
132 91041596 AR SHIM, 0.0359 IN
201 0100011 AR LOCTITE ® 242 ™
301 91161240 1 ROLLER
302 91163204 1 BUSHING
303 86921268 2 SEAL
401 91163036 1 LEAF CHAIN, BL866
402 1360296 1 LEAF CHAIN CLEVIS, BL866
403 1360297 1 LEAF CHAIN CLEVIS, BL866
404 91413122 2 PIN
405 88581112 4 SNAP RING
406 8522012 AR ANTI-SIEZE LUBE