150 Maintenance Section
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8. Park the machine and check the oil level. If necessary, add oil. 9. Close the protection cover. Reference: Refer to Operation and Maintenance Manual, "Transmission and Hydraulic System Oil Level - Check" for additional information.
Transmission and Hydraulic System Oil Filter - Replace Illustration 276
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3. Remove drain plug (7) from the bottom of the hydraulic tank and drain the oil into a suitable container. Clean the drain plug. Install the drain plug back into the hydraulic tank.
Hot oil and hot components could cause personal injury. Do not allow hot oil or hot components to contact skin.
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, "Caterpillar Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Caterpillar products. Illustration 277
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4. Remove drain plug (8) from the bottom of the transmission and drain the oil into a suitable container. Clean the drain plug. Install the drain plug back into the transmission.
Dispose of all fluids according to local regulations and mandates.
5. Fill the hydraulic tank with new Caterpillar TDTO oil and install the hydraulic tank filler cap. Clean up any oil that has spilled. Refer to Operation and Maintenance Manual, "Lubricant Viscosities" and Operation and Maintenance Manual, "Capacities (Refill)" for additional information. Note: Do not start the engine until the hydraulic tank is filled with new oil. Starting the engine before refilling with oil may damage the scavenge pump or the transmission. 6. Start the engine. Check for clearance for the boom. The boom will need clearance for full extension. You need enough clearance to fully raise the boom and you need enough clearance to lower the boom. Raise and lower the boom several times. Extend and retract the boom several times. 7. With the boom in the travel position, drive the machine slowly forward. Steer the machine from the left to the right.
Illustration 278
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1. In order to open protection cover (3), unlock lock (2) and turn lock (4) counterclockwise. Then, pull latch (1) outward.
