MH3037 Material Handler Machine Systems Caterpillar


Main Control Valve - Remove and Install - Lower Valve

Usage:

MH3037 JLH

Removal Procedure

Table 1
Required Tools 
Tool  Part Number  Part Description  Qty 
418-4568  Mobile Lift Cart 

------ WARNING! ------

High hydraulic pressure hazard. This machine will not automatically release hydraulic oil pressure from the hydraulic system after the engine has been stopped. Hydraulic system pressure will not be released by use of operator controls. Hydraulic oil pressure can remain in the system for a time after the engine has stopped. Personal injury or death may result from the release of hydraulic oil pressure, the release of hot oil, or parts separating with force if proper care is not used during the disassembly. Use extreme caution at all times when servicing this machine or any of the components.

Park the machine on a level surface and lower all implements to the ground. Sudden movement of the machine or the release of oil under pressure can cause injury or death to persons on or near the machine. Allow all fluids to cool prior to performing any service work. Take appropriate precautions to ensure safety from any remaining pressure.



NOTICE

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, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat® products.

Dispose of all fluids according to local regulations and mandates.


  1. Refer to Operation and Maintenance Manual, "Hydraulic System Oil - Change" for the correct draining and filling procedures.


    Illustration 1g03788026

  2. Disconnect hose assemblies (1) and (2).


    Illustration 2g03788037

  3. Disconnect hose assemblies (3).


    Illustration 3g03179417

  4. Disconnect ground strap (4).


    Illustration 4g03788042

  5. Disconnect harness connectors (5).


    Illustration 5g03179420

  6. Disconnect harness connectors (6).


    Illustration 6g03182578

  7. Remove bolts (7).


    Illustration 7g03182599

  8. Remove bolts (8).


    Illustration 8g03788065
    Typical example

  9. Slide control valve (9) onto Tooling (A).

Installation Procedure

  1. Install valve (9) in the reverse order of removal.

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