TUBE ASSEM. 4K8491 - Caterpillar

Failure to properly service the batteries may cause peronal injury.Prevent sparks near the batteries. They could cause vapors to explode. Do not allow the jump start 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 jump start cables.Improper jump start 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 start only with an energy 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 energy source is connected.
To prevent damage to engine bearings and to electrical circuits when you jump start a machine, do not allow the stalled machine to touch the machine that is used as the electrical source.Turn on (close) the battery disconnect switch prior to the boost connection to prevent damage to electrical components on the stalled machine.Use only equal voltage for starting. Check the battery and starter voltage rating of your machine. Use only the same voltage for jump starting. Use of a welder or higher voltage will damage the electrical system.Severely discharged maintenance free batteries do not fully recharge from the alternator after jump starting. The batteries must be charged to proper voltage with a battery charger. Many batteries thought to be unusable are still rechargeable.Refer to Special Instruction, SEHS7633, "Battery Test Procedure" for complete testing and charging information. This publication is available from your Caterpillar dealer.
Use of Jump Start Cables
When the auxiliary start receptacles are not available, use the following procedure.
Make the initial determination of the machine's failure to crank.
Move the transmission of the stalled machine into the STOP position. Engage the parking brake.
Turn the engine start switch on the stalled machine to the OFF position. Turn off all accessories.
Turn on the battery disconnect switch on the stalled machine.
Move the machine that is being used as a power source so that the jump start cables can reach the stalled machine. DO NOT ALLOW THE MACHINES TO CONTACT EACH OTHER.
Stop the engine on the machine that is being used as a power source. If you are using an auxiliary power source, turn off the charging system.
Check the battery caps for correct placement and for correct tightness. Make these checks on both machines. Make sure that the batteries in the stalled machine are not frozen. Check the batteries for low electrolyte.
Illustration 1 g00943431
Connect the positive jump start cable to the positive remote jump start terminal.Do not allow positive cable clamps to contact any metal except for the positive remote jump start terminal.Note: Batteries in series may be in separate compartments. Use the terminal that is connected to the starter solenoid. This battery is normally on the same side of the machine as the starter.
Connect the positive jump start cable to the positive terminal of