CX31 and CX31 HT On-Highway Transmissions Caterpillar

Transmission Oil - Change

Usage:

CX31 D9F

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Hot oil and hot components can cause personal injury. Do not allow hot oil or hot components to contact the 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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Remove drain plug (1) from the bottom of the transmission. Allow the oil to drain into a suitable container.
After the oil has drained from the transmission case, clean and install the drain plug. Tighten the drain plug to 35 ± 10 N·m (26 ± 7 lb ft).
Remove the magnetic screen and clean the screen.
Replace the magnetic screen and filter.
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Illustration 2 g01273907

(3) Magnetic filter
(4) Base support
(5) Solenoid guard

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Illustration 3 g02450876

(2) Filler tube
Fill transmission case with oil (2). Refer to Operation and Maintenance Manual, "Lubricant Viscosities" and Operation and Maintenance Manual, "Capacities (Refill)".
Make sure that the vehicle is on level ground. Make sure that the transmission is in NEUTRAL. Start the engine and operate the engine at LOW IDLE. Check for leaks and make necessary repairs.
Check the oil level. Stop the engine and add oil, if necessary. Repeat Step 5 through 6 until the oil level is correct.
Install the filler cap.
Observe the oil level when the oil is warm and the transmission is in the NEUTRAL position.
Maintain the oil to the correct level at all times.