1. Home
  2. Caterpillar
  3. Operation and Maintenance Manual
  4. #i07397684

903D Compact Wheel Loader Caterpillar


Engine Crankcase Breather - Replace - and PCV Valve Check

Usage:

903D MZY

  • Open the engine access door. Refer to Operation and Maintenance Manual, "Access Doors and Covers".
    Show/hide table
    Illustration 1g06309171
    Show/hide table
    Illustration 2g02826940

  • The breather is located in the engine compartment on the right-hand side of engine. There is cap on the breather and a replaceable element inside.

    Note: This service may be performed without removing the housing from the engine.

  • Remove the breather cap and remove the filter element.

  • Clean the housing and the cap for the breather.
    Show/hide table
    Illustration 3g02827582
    (1) Cover
    (2) O-ring
    (3) Filter Element
    (4) Housing

  • Press the PCV valve to ensure that the valve moves smoothly. If the valve does not move smoothly, replace the housing with the valve.

  • Install the new filter element in the breather. Install the breather cap.

  • Close the engine access door.

    • Caterpillar Information System:

    Head Liner May Sag on Certain Compact Wheel Loaders {7329} Head Liner May Sag on Certain Compact Wheel Loaders {7329}
    CG137-08 Engines Turbocharger - Assemble
    CG137-08 Engines Turbocharger - Disassemble
    D8T Track-Type Tractor Electronic Control (Fan Hydraulic System)
    Improved Discharge Hydraulic Hose Assembly Routing is Now Used on Certain 950L, 950M, 962L, and 962M Medium Wheel Loaders {5057} Improved Discharge Hydraulic Hose Assembly Routing is Now Used on Certain 950L, 950M, 962L, and 962M Medium Wheel Loaders {5057}
    330 GC and 330 Excavator Access Door and Cover Locations
    D8T Track-Type Tractor Machine Systems Hydraulic Tank - Remove and Install
    903D Compact Wheel Loader Access Doors and Covers
    C175–16 Locomotive Engine Diesel Exhaust Fluid Quality - Test
    C175–16 Locomotive Engine Measuring Exhaust Temperature
    986K Wheel Loader Engine Supplement Fan Group (Includes Fan, Fan Shroud, and Hydraulic Fan Motor) - Remove and Install
    Improved Return Hydraulic Hose Assembly Routing Now Used on Certain 950L, 950M, 962L, and 962M Medium Wheel Loaders {5057} Improved Return Hydraulic Hose Assembly Routing Now Used on Certain 950L, 950M, 962L, and 962M Medium Wheel Loaders {5057}
    903D Compact Wheel Loader Engine Oil Level - Check
    PL61 Pipelayer Systems System Pressure - Release
    903D Compact Wheel Loader Fuel System Filter and Water Separator - Replace
    988K XE Wheel Loader Connector Contact Description
    903D Compact Wheel Loader Fuel System Water Separator - Drain
    988K XE Wheel Loader Power Supply (Priming) - Test - 988 XE Wheel Loader
    903D Compact Wheel Loader Fuel Tank Water and Sediment - Drain
    Cat® Command for Dozing, Operator Station Emerging Symptom Information
    C9.3B Engines Atmospheric Pressure Sensor
    C9.3B Engines Inlet Manifold Air Pressure Sensor
    Improved A/C Compressor Is Now Available on Certain Large Wheel Loaders and Large Wheel Dozers {1802} Improved A/C Compressor Is Now Available on Certain Large Wheel Loaders and Large Wheel Dozers {1802}
    826K Landfill Compactor Prepare the Machine for Maintenance
    Back to top
    Contacts My AVS
    The names Caterpillar, John Deere, JD, JCB, Hyundai or any other original equipment manufacturers are registered trademarks of the respective original equipment manufacturers. All names, descriptions, numbers and symbols are used for reference purposes only.
    CH-Part.com is in no way associated with any of the manufacturers we have listed. All manufacturer's names and descriptions are for reference only.