Clean, Inspect, and Replace—Transmission, Transfer Case, and Axle Breathers

T147909B
T147909B-UN-15NOV01

Located Under Hydraulic Reservoir

T147908B
T147908B-UN-15NOV01

Located Under Cab

T147910B
T147910B-UN-15NOV01

Located Above Rear Axles

1 - Transfer Case Breather

2 - Transmission Breather Cap

3 - Front Axle Breather

4 - Middle Axle Breather

5 - Rear Axle Breather


  1. IMPORTANT: DO NOT spray steam, water or cleaning solution directly at breathers. Spray could be forced into housings.

    NOTE: Breathers should be checked daily in adverse working conditions. The amount of dust and dirt encountered will determine the frequency of breather cleaning.

    The cab must be tilted to access the transmission breather cap and front axle breather.

    Clean dirt, dust, and debris from each breather (1—5) and from surrounding areas.

  2. IMPORTANT: DO NOT crush or damage breathers during removal. Foreign matter may enter housings.

    Inspect each breather for clogging, damage, and proper installation. If necessary, remove clogged breather(s) from machine and clean with water. Dry thoroughly before reinstalling. Replace any breather that appears damaged or cannot be unclogged. Tighten to specification.

    ItemMeasurementSpecification
    Breather
    TighteningTorque12—16 N˙m (106—142 lb-in.)

  3. Inspect axle breather hoses for clogging, damage, and proper installation.

    If necessary, clear breather hose(s). Replace any breather hose that appears damaged or cannot be unclogged.

OUO1043,0000E06-19-20011030