Boom hydraulic circuit (3-section) 5.8.1.1, Boom hydraulic circuit (3-section) – Lull 644B Parts Manual User Manual
Page 399
ITEM
PART NO.
DESCRIPTION
QTY.
ITEM
PART NO.
DESCRIPTION
QTY.
1
P00404
1
Capscrew, Hx., 1/2"-13 × 1 1/2"
2
➊66347B
1
Quick Coupler (Incl. dust caps & male connectors)
3
P01312
1
Lockwasher, 1/2"
4
P01510
1
Nut, Hx., 1/2"-13
5
P18964
2
Connector, O-Ring
6
37185X
2
Hyd. Hose
7
➋37861X
2
Hyd. Hose
8
91083217
8
Clamp, Cushion
9
36123B
2
Hyd. Tube, 5/8" O.D.
10
36122B
2
Hyd. Tube, 3/4" O.D.
11
90207463
10
Clamp, Cushion
12
P21916
2
90° Elbow, Bulkhead
13
P27394
2
90° Elbow, Bulkhead
14
37183X
1
Hyd. Hose
15
37184X
1
Hyd. Hose
16
37181X
1
Hyd. Hose
17
37182X
1
Hyd. Hose
18
36269B
1
Hyd. Tube, 5/8" O.D.
19
36268B
1
Hyd. Tube, 5/8" O.D.
20
36273B
1
Hyd. Tube, 3/4" O.D.
21
36272B
1
Hyd. Tube, 3/4" O.D.
22
37186X
2
Hyd. Hose
23
37187X
1
Hyd. Hose
24
37188X
1
Hyd. Hose
25
37189X
2
Hyd. Hose
26
38133B
1
Hyd. Tube, 3/4" O.D.
27
38132B
1
Hyd. Tube, 3/4" O.D.
28
P17802
2
90° Elbow, O-Ring
29
P27827
1
Cartridge, Counterbalance Valve
REF
P40491
1
Seal Kit for Item 29
30
P30444
1
Cartridge, Counterbalance Valve
REF
P30927
1
Seal Kit for Item 30
31
34816B
1
Cylinder, Boom Extension
(See Page 5.9.1 for Breakdown)
32
26329A
4
Tube Clamp
33
P01507
4
Nut, Hx., 5/16"-18
NOTES:
➊ For 644B-42 (101–284), 844C-42 (101–1062) & 1044C-42 (101–123)
Use P29348.
➋ For 644B-42 (101–284), 844C-42 (101–1062) & 1044C-42 (101–123)
Use 37191X
➌ Use on 644B-42 & 844C-42.
➍ Use on 1044C-42.
34
P01309
4
Lockwasher, 5/16"
35
38436A
2
Access Cover
36
38434A
1
Bulkhead Plate, Right Hand
37
38435A
1
Bulkhead Plate, Left Hand
38
P01310
12
Lockwasher, 3/8"
39
P00201
12
Capscrew, Hx., 3/8"-16 × 5/8"
40
P28140
2
90° Elbow, Swivel
41
P21632
2
90° Elbow, Swivel
42
➌34835B
1
Cylinder, Front Carriage Tilt
(See Page 5.12.1 for Breakdown)
➍34836B
1
Cylinder, Front Carriage Tilt
(See Page 5.12.2 for Breakdown)
43
P29947
1
Cartridge, Counterbalance Valve
REF
2900770
1
Seal Kit for Item 43
BOOM HYDRAULIC CIRCUIT (3-Section)
5.8.1.1
Rev. 003
1044C-42 S/N 105–122
644B-42 S/N 116–518
844C-42 S/N 264–1480 & 1482-1512
644B
6K
844C
8K
1044C
10K