![background image](http://html1.mh-extra.com/html/jcb/js-200-series/js-200-series_service-manual_3627661290.webp)
33 - 2
Section E
Hydraulics
9803/6400
Section E
33 - 2
Issue 2*
Control Valve JS200/JS240
Dismantling
(continued)
18.
Remove the main relief valve 13 (Hexagonal 32 A/F) from the valve housing.
19.
Remove the port relief valve 31 (Hexagonal 31.5 A/F) from the valve housing.
20.
Remove the negative control relief valve 24 (Hexagonal 36 A/F) from the valve housing.
21.
If possible, do not disassemble the relief valve. Refer to Relief Valve dismantling and assembly.
22.
The blind plugs 12 (Hexagonal 22 A/F) and 53 (Hexagonal 36 A/F) should not be disassembled unless there is a defect.
23.
52 (Hexagonal socket 5 A/F) is attached to the taper screw plug so do not disassemble unless necessary.
24.
Remove plug 74 (M6) and remove the 'O'-ring 75 and backup ring 76.
25.
Remove plug 56 (M6) and remove the 'O'-ring 54 and backup ring 55, then disassemble the spring 53, poppet 52,
sleeve 51, backup ring 49 and 'O'-ring 50.
26.
Loosen bolt 40 (Hexagonal 36 A/F) and separate the washer 39, plate 41 and 'O'-ring 38.
27.
Loosen plug 65 (Hexagonal 36 A/F) and remove the 'O'-ring 66.
28.
Loosen the socket head bolt 72 (Hexagonal 8 A/F) and remove the flanges 70, 71. Disassemble the sleeve 29, 46, poppet
32, 44, 47 and spring ring 31, 43, 48. Remove the 'O'-ring.
29.
Loosen plug 21 (Hexagonal 27 A/F) and disassemble the 'O'-ring 22, spring 23 and poppet 24.
30.
Loosen plug 26 (Hexagonal 27 A/F) and disassemble the 'O'-ring 25, spring 27 and poppet 28.
31.
Remove the plug assembly 36 (Hexagonal 27 A/F).
32.
Remove the relief valve 45 (Hexagonal 31.5 A/F) from the valve housing. Do not disassemble the relief valve unless
necessary.
33
. The blind plugs 13 (Hexagonal 31.5 A/F), 34 (Hexagonal socket 6 A/F), 37 (Hexagonal 31.5 A/F), 67 (Hexagonal 19 A/F),
78 (Hexagonal socket 10 A/F) should not be disassembled unless there is some defect.
34.
35 (Hexagonal socket 5 A/F) is attached to the taper screw plug and should not be disassembled unless there is some
defect.
35.
If possible, the 5-spool side valve housing and 4-spool side valve housing should not be separated.
36.
Loosen the socket head bolt (Hexagonal 14 A/F) and remove the 'O'-rings 18, 61, 62, 63, 64.
Dismantling, 4-spool control valve section
1.
Loosen plug 49 and take out piston 51, 56 and spring). Remove 'O'-ring 50.
2.
Loosen and remove the socket head bolt 47, 48 (Hexagonal socket 8 A/F) of the cap 2, 14. At this time be careful not to
drop the 'O'-rings 10, 18 and spring 8 when removing from the cap.
3.
Pull out the spool 3, 4, 5, 6 as a sub-assembly from the valve housing 1.
4.
Heat the spool 3, 4, 5, 6 and loosen the spool end 15 (Hexagonal 22 A/F). Disassemble the spring seat 16 and spring 17.
5.
Attach tags to the spring and each spool to insure the correct direction and position when reassembling.
*
Summary of Contents for JS 200 Series
Page 57: ...9 1 Section 3 Routine Maintenance 9803 6400 Section 3 9 1 Issue 2 Component Location Diagram...
Page 113: ......
Page 137: ...5 3 Section C Electrics 9803 6400 Section C 5 3 Issue 2 Pump Control FLOW CHART...
Page 201: ...10 7 Section C Electrics 9803 6400 Section C 10 7 Issue 1 CAPs II Diagnostic system K C...
Page 215: ...Section E Section E Hydraulics 9803 6400 Issue 2 3 2 3 2 Schematics...
Page 217: ...Section E Section E 9803 6400 Issue 2 3 3 3 3 Hydraulics Schematics...
Page 218: ...3 5 Section E Hydraulics 9803 6400 Section E 3 5 Issue 1 Schematics Shuttle Block JS200 JS240...
Page 232: ...10 1 Section E Hydraulics 9803 6400 Section E 10 1 Issue 1 Hydraulic Pump JS200 JS240...
Page 233: ...10 2 Section E Hydraulics 9803 6400 Section E 10 2 Issue 1 Hydraulic Pump JS200 JS240...
Page 234: ...10 3 Section E Hydraulics 9803 6400 Section E 10 3 Issue 1 Hydraulic Pump JS200 JS240...
Page 263: ...30 2 Section E Hydraulics 9803 6400 Section E 30 2 Issue 1 Control Valve JS200 JS240...
Page 264: ...30 3 Section E Hydraulics 9803 6400 Section E 30 3 Issue 1 Control Valve JS200 JS240...
Page 265: ...30 4 Section E Hydraulics 9803 6400 Section E 30 4 Issue 1 Control Valve JS200 JS240...
Page 266: ...30 5 Section E Hydraulics 9803 6400 Section E 30 5 Issue 1 Control Valve JS200 JS240...
Page 267: ...30 6 Section E Hydraulics 9803 6400 Section E 30 6 Issue 1 Control Valve JS200 JS240...
Page 268: ...30 7 Section E Hydraulics 9803 6400 Section E 30 7 Issue 1 Control Valve JS200 JS240...
Page 327: ...51 12 Section E Hydraulics 9803 6400 Section E 51 12 Issue 1 Solenoid Valve 8 spool...
Page 328: ...55 1 Schematic Section E Hydraulics 9803 6400 Section E 55 1 Issue 1 Shuttle Valve...
Page 330: ...55 3 Schematic Section E Hydraulics 9803 6400 Section E 55 3 Issue 1 Cushion Valves...
Page 481: ...7 15 Section F Transmission 9803 6400 Section F 7 15 Issue 2 Motor...
Page 482: ...7 16 Section F Transmission 9803 6400 Section F 7 16 Issue 1 Motor...