Removal Procedure
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Personal injury can result from hydraulic oil pressure and hot oil. Hydraulic oil pressure can remain in the hydraulic system after the engine has been stopped. Serious injury can be caused if this pressure is not released before any service is done on the hydraulic system. Make sure all of the work tools have been lowered to the ground, and the oil is cool before removing any components or lines. Remove the oil filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand. |
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| NOTICE |
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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 machine. 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 Tools and Shop Products Guide"for tools and supplies to collect and contain fluids in Caterpillar machines. Dispose of all fluids according to local regulations. |
Note: Put identification marks on all lines, on all hoses, on all wires, and on all tubes for installation purposes. Mark parts as needed to aid in assembly. Plug all lines, hoses, and tubes, this action helps to prevent fluid loss and helps to keep contaminants from entering the system.
Note: Cleanliness is an important factor. Before the removal procedure, clean the exterior of the components to dirt from entering the internal mechanism. Precision components can be damaged by contaminants or by dirt.
- Turn battery disconnect switch to the OFF position. Refer to Operation and Maintenance Manual, "Battery Disconnect Switch".
- Drain the oil. Refer to Operation and Maintenance Manual, "Hydraulic System Oil - Change". Refer to Operation and Maintenance Manual, "Capacities - Refill".
- Remove four bolts (2) and four washers (3) from control manifold cover (1). Remove the control manifold cover.
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| Illustration 1 | g03385081 |
- Disconnect the machine harness from four front spray solenoids (4) on control manifold (pilot oil) (7). Disconnect the machine harness from three cannon solenoids (5) on control manifold (6) .
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| Illustration 2 | g03385083 |
- Disconnect pilot supply hose assembly (8) from control manifold (pilot oil) (7). Disconnect pilot return hose assembly (9) from control manifold (pilot oil).
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| Illustration 3 | g03385086 |
- Disconnect cannon-up hose assembly (10) and cannon-down hose assembly (11) from control manifold (6) .
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| Illustration 4 | g03385087 |
- Disconnect cannon-left hose assembly (12) and cannon-right hose assembly (13) from control manifold (6) .
- Disconnect cannon-on hose assembly (14) and cannon-off hose assembly (15) from control manifold (6) .
- Disconnect spray-close hose assemblies (16) and (17) from control manifold (6) .
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| Illustration 5 | g03385095 |
- Disconnect spray-open hose assemblies (18) and (19) from control manifold (6) .
- Remove four bolts (21) and four washers (22) from mounting plate (20). Remove the mounting plate from the water tank.
Note: Spacers (23) are used between the mounting plate (20) and the water tank. Spacers may fall when bolts (21) are removed.
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| Illustration 6 | g03385096 |
- Remove three bolts (26) and three washers (27) from control manifold (pilot oil) (25) .
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| Illustration 7 | g03716056 |
Note: The control manifold (front) (24) may remain attached to the mounting plate if only control manifold (pilot oil) (2) components are to be serviced.
- Remove control manifold (pilot oil) (25) .
Note: Control manifold (pilot oil) (25) may consist of multiple, similar components. Control manifold components (1) and (2) have O-rings between the components.
- Remove four bolts (28) and four washers (29). Remove control manifold (front) (24) .
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| Illustration 8 | g03716059 |
Installation Procedure
- Install control manifold (24) in the reverse order of removal.