Parts Manual User Manual

3-4 3120637
SECTION 3 BOOM
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FIGURE 3-1. BOOM ASSEMBLY COMPONENTS INSTALLATION
FIG & ITEM # PART NUMBER DESCRIPTION QTY. REV.
BOOM ASSEMBLIES (STANDARD PARTS) Ref.
1 to 9 Not Used
10 3580139 Sheave - Outer Mid Extend Chain 1
11 0238927 Sheave Assembly - Fly Extend Chain 2 A
0961293 Bushing, Bronze (1 Per Sheave) 2
12 0237151 Sheave Assembly - Outer Mid Retract Chain 2 B
0961353 Bushing, Bronze (1 Per Sheave) 2
13 to 14 Not Used
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 Extend 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
30 3421280 Pin, Attach 4
31 4751000 Flatwasher #10 10
32 3450202 Pin, Cotter 1/16" x 1/2" 8
33 to 34 Not Used
35 0238945 Adjustable Clevis Assembly - Outer Mid Retract Chain
(See Figure 3-2 for Breakdown)
1
36 Not Used
37 3300240 Locknut, Nylon 5/8"-11NC (Grade 8) 2
38 3312002 Nut, Jam 5/8"-11NC 2
39 4761600 Lockwasher 3/8" 100
40 Not Used
41 4843105 Mount, End - Chain 1
42 3421539 Pin, Sheave 1
43 3450814 Pin, Cotter 1/4" x 3 1/2" 2
44 4070616 Shim 1/32"/.8mm A/R
45 0560689 Block, Mounting - Wear Pad 2
46 2160002 Fitting, Grease 5
47 3421538 Pin, Sheave 2
48 4740307 Washer, Thrust 4
49 3421290 Pin, Sheave 2
50 Not Used
51 4740311 Washer, Thrust 12
52 3951606 Setscrew 3/8"-16NC x 3/4" 4