JLG 120HX Parts Manual - Manual (Page 108)

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SECTION 3 BOOM S
E
C
T
I
O
N
3
B
O
O
M
FIGURE 3-1. BOOM ASSEMBLY COMPONENTS INSTALLATION
FIG & ITEM # PART NUMBER DESCRIPTION QTY. REV.
BOOM ASSEMBLY COMPONENTS INSTALLATION Ref.
BOOM ASSEMBLIES (STANDARD PARTS) Ref.
1 0800765 Base Weldment 1 —
2 0800766 Inner Mid Weldment 1 6
3532549 Plate, Skid (Rear Bottom) 1
3 0800767 Outer Mid Weldment 1
3535816 Plate, Skid (Rear Bottom) 1
4 Fly Weldment Options: 1
0800768 Fly Weldment (Prior to S/N 37026) 1
0801155 Fly Weldment (S/N 37026 to present) 1
5 Telescope Cylinder Assembly Options (See Section 5
for Breakdown): 1
1682030 Standard Boom Prior To November 1992
1682820 Standard Boom November 1992 To S/N 38697
1683701 Standard Boom S/N 38697 To Present
1682030 Boom with Chip Covers Prior To November 1992
1682820 Boom with Chip Covers November 1992 To
Present
6 1260235 Chain, Extend - Outer Mid BL866 1 set
7 1260234 Chain, Extend - Fly BL823 1 set
8 1260275 Chain, Retract - Fly BL446 1 set
9 1260233 Chain, Retract - Outer Mid BL446 1 set
10 3580139 Sheave - Outer Mid Extend Chain 1
11 0238927 Sheave Assembly - Fly Extend Chain 3 B
0961293 Bushing, Bronze (1 Per Sheave) 3
12 0237151 Sheave Assembly - Outer Mid Extend Chain 2 B
0961353 Bushing, Bronze (1 Per Sheave) 2
13 0239606 Sheave Assembly - Fly Retract Chain 2 —
0961369 Bushing, Bronze (1 Per Sheave) 2
14 0239268
Adjustable Clevis Assembly - Outer Mid Retract
Chain (See Figure 3-2 for Breakdown)
1
15 3421286 Pin, Attach 4
16 1360171 Clevis 1
17 3421279 Pin, Attach 1
18 3450408 Pin, Cotter 1/8" x 2" 2
19 3313002 Nut, Jam 1 1/4"-7NC 1
20 3300244 Locknut, Nylon 1 1/4"-7NC Grade 8 1
21 3312602 Nut, Jam 1"-8NC 2
22 3300243 Locknut, Nylon 1"-8NC Grade 8 2
23 0238901
Adjustable Clevis Assembly - Outer Mid Retract
Chain (See Figure 3-2 for Breakdown)
1
24 Not Used
25 Not Used
26 3421570 Pin, Attach 2
27 4751600 Flatwasher 3/8" 35
28 3450303 Pin, Cotter 3/22" x 3/4" 8
29 0238919
Adjustable Clevis Assembly - Fly Extend Chain (See
Figure 3-2 for Breakdown)
1