140 Motor Grader Caterpillar

Transmission and Differential Oil Filter and Screens - Replace/Clean

Usage:

140 N94

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Hot oil and hot components can cause personal injury. Do not allow hot oil or hot components to contact skin.

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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.

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Illustration 1	g06250057
Cutaway view

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Illustration 2	g06250062

Remove drain plug (4) on transmission oil filter housing (3). Allow the oil to drain into a suitable container.
Loosen oil sampling valve (1) or pressure test port (2) to vent the transmission oil filter housing.
Remove the transmission oil filter housing.
Remove the used element and discard the used element.
Clean the transmission oil filter housing with a clean, nonflammable solvent.
Clean the base of the transmission oil filter housing.
Insert a new filter element into the transmission oil filter housing.
Replace the filter housing base seal.
Install the transmission oil filter housing.
Install drain plug (4) in transmission oil filter housing (3).
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Illustration 3 g01440673
Remove the three bolts of the cover for magnetic screen (6). Slowly remove the cover from the housing (5) for the magnetic screen. Allow the oil to drain into a suitable container.
Remove the magnetic screen tube assembly.
Separate the magnet and the tube assembly from the screen. Wash the screen and the tube assembly in clean, nonflammable solvent. Allow the screen to dry and allow the tube assembly to dry.

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NOTICE

Do not drop or rap magnets on hard objects, or damage can result. Replace damaged magnets.
Clean the magnet with a cloth or clean the magnet with a firm brush. Allow the magnet to dry.
Install the magnet and the tube assembly into the screens.
Install the screen.
Inspect the cover seals. If the cover seals are damaged, replace the cover seals.
Install the covers and tighten the bolts.
Repeat steps 11 through 18 for the transmission suction screen (7).
Start the engine.
With the parking brake engaged, run the engine at low idle to circulate the transmission oil.
Inspect all of the transmission components for leaks.
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Illustration 4 g06250063
Clean the area around oil level gauge/fill cap (8).
With the engine at low idle, maintain the oil level between the marks on the oil level gauge. If necessary, add oil through oil level gauge/fill cap (8).
Stop the engine.