CYLINDER HEAD AND VALVE MECHANISM 7S2520 - Caterpillar

3. Push and release the air intake heater switch. 4. The alert indicator on the instrument panel will come on during the heating prior to start up. The alert indicator will go off when the engine start switch key can be moved to the START position.5. Release the engine start switch key when the engine starts. Push the air intake heater switch, after the engine is started, to improve engine idle while the engine is warming up.Engine Starting with Jumper Cables
Batteries give off flammable fumes that can explode resulting in personal injury.Prevent sparks near the batteries. They could cause vapors to explode. Do not allow jumper cable ends to contact each other or the machine.Do not smoke when checking battery electrolyte levels.Electrolyte is an acid and can cause personal injury if it contacts skin or eyes.Always wear eye protection when starting a machine with jumper cables.Improper jumping procedures can cause an explosion resulting in personal injury.Always connect the battery positive (+) to battery positive (+) and the battery negative (-) to battery negative (-).Jump only with a battery source with the same voltage as the stalled machine.Turn off all lights and accessories on the stalled machine. Otherwise, they will operate when the jump source is connected.
When starting from another machine, make sure the machines do not touch. This could prevent damage to engine bearings and electrical circuits.Turn on (close) the disconnect switch prior to the boost connection to prevent damage to electrical components on the stalled machine.Severely discharged maintenance free batteries will not fully recharge from the alternator alone after jump starting. The batteries must be charged to the proper voltage with a battery charger. Many batteries thought to be unusable, are still rechargeable.This machine has a 24 volt starting system. Use only equal voltage for jump starting. Use of a higher voltage will damage the electrical system.Refer to Special Instruction, Battery Test Procedure, SEHS7633, available from your Caterpillar dealer, for complete testing and charging information.
Use of Jumper Cables
When auxiliary start receptacles are not available, use the following procedure.1. Make initial determination as to failure of machine to crank. Refer to Special Instruction SEHS7768 on use of 6V2150 Starting/Charging Analyzer Group. Procedure applies even if machine does not have diagnostic connector.2. Move the transmission control into NEUTRAL on the stalled machine. Engage the parking brake. Lower the attachment to the ground. Move all controls to HOLD.3. On stalled machine, turn the engine start switch key to OFF. Turn off all accessories.4. On stalled machine, turn on (close) the disconnect switch.5. Move boost start machine near enough to stalled machine for the jumper cables to reach. But, do not allow machines to touch.6. Stop the engine on the boost machine. Or, if using an auxiliary power source, turn off the charging system.7. Make sure battery caps are all in place and tight on both machines and that batteries in the stalled machine are not frozen or low on electrolyte.8. Connect positive (+) jumper cable (red) to positive (+) cable