HOUSING-FLYWHEEL 4P2786 - Caterpillar

Clean/Inspect Aftercooler
Inspect the front of the air-to-air aftercooler. Examine core fins for external damage, insects, dirt, debris, salt, corrosion, etc. Use a firm stainless steel brush and soapy water to remove dirt, debris, salt, etc. Depending on your findings and operating environment, the maintenance interval for cleaning the air-to-air aftercooler may be more frequent.A slight reduction in power or response, or a small increase in exhaust temperature, may indicate a small air leak in the charge air cooler core or piping. Inspect all air ducting and gasket connections at each oil change. Constant torque hose clamps should be secure. Tighten these clamps until the spring is at least partially compressed.Inspect all welds for cracks. Check the mounting brackets to ensure they are secure and in good condition. Whenever air-to-air aftercooler parts are repaired and/or replaced, a leak test is highly recommended. Refer to the service manual or consult your Caterpillar dealer for the correct procedure to use when performing a leak test.Batteries
Clean/Check Electrolyte Level
1. Remove the filler caps. Maintain electrolyte level to bottom on fill plug openings.If the addition of water is necessary, use distilled water. If distilled water is not available use clean water that is low in minerals. Do not use artificially softened water.At proper charging rate, batteries should not require more than 30 cc (1 oz) water per cell per week.2. Keep batteries clean.3. Loosen and remove cable clamps from all battery terminals.4. Clean all battery terminals.5. Clean all cable clamps.6. Install and tighten cable clamps to battery terminals.7. Coat cable clamps and terminals with 5N-5561 Silicone Lubricant, petroleum jelly or MPGM grease.Check Battery Charger (if equipped)
* Check the battery charger for proper operation. If batteries are properly charged, ammeter reading should be very near zero. All batteries should be kept charged to a corrected specific gravity of 1.250 or above.* The batteries should be kept warm, if possible. The battery temperature affects the cranking power. If the battery is too cold, it will not crank the engine, even if the engine is warm.* When the engine is not run for long periods of time or is run for short periods, the batteries may not fully recharge. Ensure a full charge to help prevent the battery from freezing.Battery or Battery Cable Replacement
When replacing batteries or battery cables, use the following procedure.1. Turn off the START switch. Turn off (open) the ignition switch (if equipped) and remove the key and all electrical loads.2. Disconnect the cable from the negative battery terminal. Be sure the cable cannot contact the terminal.3. Disconnect the negative battery cable terminal at the battery(s) that goes to the control panel switch. Where four 12 volt batteries are involved, the negative side of two batteries must be disconnected.4. Proceed with necessary system repairs. Reverse steps to reconnect all cables.Belts
Inspect/Check/Replace
The 3126 HEUI Industrial Engine is equipped with one water pump belt and one belt for the fan drive, alternator, and accessories.* Inspect the condition and adjustment of water pump, alternator and fan drive belts.