Valve section assembly - boom 6.20.1, Valve section assembly - boom – Lull 644B Parts Manual User 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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