Lull 644B Parts Manual - Manual (Page 493)

ITEM PART NO. DESCRIPTION QTY. ITEM PART NO. DESCRIPTION QTY.
1 37907X - Valve Section Assembly - Boom Hoist
36546X - Valve Section Assembly - Boom Extension
2 P01766 2 Capscrew, Socket Hd., 1/4"-20 × 4 1/2"
3 P32927 2 Retainer
4 P32929 1 Cap, Spool
5 P21701 1 Shoulder Bolt, Socket Hd., 1/2" Dia. x 2"
6 P91776 2 Washer, Flat
7 P91777 1 Spring
8 P91778 1 Spacer
9 P32931 1 O-Ring
10 P32930 1 Retainer, Spool Cap
11 P91781 2 O-Ring
12 N.S.S. 1 Spool
13 N.S.S. 1 Housing
14 P91782 1 O-Ring
15 P91783 1 Spring
16 P91784 1 Poppet
17 P32928 1 Cap, Spool
18 P01755 2 Capscrew, Socket Hd., 1/4"-20 × 1"
N.S.S. = Not Sold Separately
VALVE SECTION ASSEMBLY - Boom 6.20.1
Rev. 001
1044C-42 S/N 117–
1044C-54 S/N 155–
644B-42 S/N 208–
644B-37 S/N 591, 667–
844C-42 S/N 622–
10K-42 S/N 107–
10K-54 S/N 104–
8K-42 S/N 221–
6K-42 S/N 120–
6K-37 S/N 318–
644B
6K
844C
8K
1044C
10K
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