Lull 6K Service Manual - Manual (Page 291)

Boom and Transfer
Service Manual — Models 644B, 6K, 844C, 8K, 1044C, 10K 6-41
Overhaul
Selector Valve (Control
Manifold System)
644B-37 (S/N 101–590, 592–666)
644B-42 (S/N 101–207)
6K-37 (S/N 101–317)
6K-42 (S/N 101–119)
844C-42 (S/N 101–621)
8K-42 (S/N 101–220)
1044C-42 (S/N 101–116)
1044C-54 (S/N 101–154)
10K-42 (S/N 101–106)
10K-54 (S/N 101–103)
Fig. 6-25: Selector Valve Assembly – Models with Control Manifold
Hydraulics
(Ref. Fig. 6-25) The following steps describe disassembly and overhaul of
the selector valve assembly in models with a control manifold hydraulic
system.
1. Loosen and remove two (2) long elbows (Item 6).
2. Loosen and remove four (4) remaining elbows (Item 7).
3. Remove two (2) each O-ring plugs (Item 8) and orifices (Item 9) from
valve body (Item 10).
4. Loosen and remove nut (Item 1) from solenoid cartridge (Item 16).
5. Remove name plate (Item 2), coil housing (Item 3), solenoid coil
(Item 4), and cover plate (Item 5) from solenoid cartridge.
# Description
1 Nut
2 Name Plate
3 Coil Housing
4 Solenoid Coil
5 Cover Plate
6 Long Elbow
7 Elbow
8 O-ring Plug
# Description
9 Orifice
10 Valve Body
11 O-ring
12 Backup Ring
13 Backup Ring
14 O-ring
15 O-ring
16 Solenoid Cartridge
1
J1
1
8
0
2
3
4
5
16
13
12
11
7
6
7
10
9
8
14
15