Disassembly Procedure
Start By:
- Remove the brake control valve. Refer to Disassembly and Assembly, "Brake Control Valve - Remove".
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Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to Special Publication, NENG2500, "Caterpillar Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Caterpillar products. Dispose of all fluids according to local regulations and mandates. |
- Remove cable straps (2) . Remove bolts (3) from brake control valve (1) . Remove plate (4) .
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| Illustration 1 | g00728087 |
- Remove washers (5) from manifold (6) . Remove manifold (6) from brake control valve (1) .
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| Illustration 2 | g00728168 |
- Remove O-ring seal (7) from manifold (6) .
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| Illustration 3 | g00728175 |
- Remove nut (11) , washer (10) , and coil assembly (9) from cartridge valve (8) . Remove cartridge valve (8) from manifold (6) .
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| Illustration 4 | g00992910 |
- Remove O-ring seal (15) , screen (14) , O-ring seal (13) , and rectangular seal (12) from cartridge valve (8) .
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| Illustration 5 | g00992909 |
- Remove nut (19) , washer (18) , and coil assembly (17) from cartridge valve (16) . Remove cartridge valve (16) from manifold (6) .
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| Illustration 6 | g00992908 |
- Remove O-ring seal (23) , screen (22) , O-ring seal (21) , and rectangular seal (20) from cartridge valve (16) .
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| Illustration 7 | g00992906 |
- Remove plate (24) from brake control valve (1) .
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| Illustration 8 | g00728255 |
- Remove O-ring seal (25) from valve body (26) . Remove bolts (27) and (28) . Remove valve body (26) .
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| Illustration 9 | g00992905 |
- Remove O-ring seal (29) from valve body (26) .
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| Illustration 10 | g00728292 |
- Remove bolts (30) . Remove bracket (31) from valve body (26) . Remove bolts (33) and plate (32) .
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| Illustration 11 | g00992904 |
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Personal injury can result from being struck by parts propelled by a released spring force. Make sure to wear all necessary protective equipment. Follow the recommended procedure and use all recommended tooling to release the spring force. |
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- Remove O-ring seals (37) , retainers (36) , springs (35) , and pistons (34) from valve body (26) .
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| Illustration 12 | g01135185 |
- Remove plug (38) from valve body (26) .
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| Illustration 13 | g00993566 |
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Personal injury can result from being struck by parts propelled by a released spring force. Make sure to wear all necessary protective equipment. Follow the recommended procedure and use all recommended tooling to release the spring force. |
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- Remove O-ring seal (42) from plug (38) . Remove spring (41) and spool (40) from valve body (26) . Remove plug (39) .
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| Illustration 14 | g00992902 |
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Personal injury can result from being struck by parts propelled by a released spring force. Make sure to wear all necessary protective equipment. Follow the recommended procedure and use all recommended tooling to release the spring force. |
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- Remove O-ring seal (45) from plug (39) . Remove spring (44) and spool (43) from valve body (26) .
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| Illustration 15 | g00992900 |
- Remove separator plate (46) .
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| Illustration 16 | g00993630 |
- Remove plug (47) and the O-ring seal from separator plate (46) .
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| Illustration 17 | g00993632 |
- Remove O-ring seal (48) from manifold (49) .
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| Illustration 18 | g00993633 |
- Remove nut (50) , washer (51) , and coil assembly (52) from cartridge valve (53) . Remove cartridge valve (53) from manifold (49) .
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| Illustration 19 | g00992899 |
- Remove O-ring seals (54) and (55) from cartridge valve (53) .
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| Illustration 20 | g00992898 |
- Remove adapter (58) , O-ring seal (59) , and pin (60) from cartridge valve (53) . Remove seat (56) and ball (57) from adapter (58) .
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| Illustration 21 | g00992897 |
- Remove dowel (61) from manifold (49) if it is necessary.
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| Illustration 22 | g00992896 |
- Remove plug (62) and the O-ring seal from manifold (49) . Remove spool (63) from manifold (49) .
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| Illustration 23 | g01135190 |
- Remove retaining ring (64) , retainer (65) , and spring (66) from spool (69) . Remove O-ring seal (67) from stop (68) . Remove stop (68) from spool (69) .
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| Illustration 24 | g01135191 |
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Personal injury can result from parts and/or covers under spring pressure. Spring force will be released when covers are removed. Be prepared to hold spring loaded covers as the bolts are loosened. |
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