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SHAFT 1C3997 - Caterpillar

1C3997 SHAFT Caterpillar parts SHAFT
Alternative (cross code) number:
Caterpillar 1C3997 SHAFT
Weight: 29 pounds 13 kg.

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Follow the instructions with the coolant test kit to check both the concentration of glycol as well as the amount of conditioner. The coolant should contain approximately 30-60% glycol with 3-6% conditioner.Refer to SEBD0518, entitled, Know Your Cooling System for a better understanding of the importance of proper cooling system maintenance. Also refer to Tool Announcement NEHG3012, entitled, New 8T5296 Conditioner Test Kit. Both are located in the literature compartment of your kit.Engine Evaluation
Excessive Smoke
When possible, observe the machine during normal operation for sign of excessive smoke. Some smoke during startup and acceleration will be normal. Continuous smoke during operation however may indicate a problem.In general, black smoke is caused by partially burned fuel which indicates over fueling or an air restriction problem (plugged air filter element). This could possibly be corrected with a tune-up.Blue smoke is caused by oil consumption which may be due to ring and liner wear, valve guide wear or more minor problems such as leaking turbocharger seals or plugged crankcase ventilation.White smoke can be steam due to moisture in the combustion chamber or unburned fuel due to a possible fuel system problem. Again some white smoke at startup may be normal, especially under cold ambient conditions until the machine reaches operating temperature.Filter Inspection
The 6V7905 Filter Cutter, the 2P8250 Strap Wrench Assembly and the 1U7113 Ratchet (1/2" drive) allows for the internal inspection of a used filter to determine if debris is present.Use the utility knife included in the kit to cut the internal paper type filter open. Any signs of large chunks of material, especially metallic material, indicates an immediate problem which should be checked by the Service Department.Fine non-metallic materials, such as paint chips, gasket or paper fibers, and other non-metallic items, may be present in smaller quantities and can be identified by color or by their magnetic properties. Use the magnet included in the kit to determine how much of the material is ferrous (iron) which would normally be an indication of a problem requiring attention.Aluminum particles (dull gray and not magnetic) are generated by piston wear or bearing wear. This inspection is normally best performed in front of the customer to illustrate the condition of the engine. Accumulations of more than a few particles, may be an indication requiring attention and investigation by the customer or the Service Department.Crankcase Pressure (Blowby) Measurement
The pressure gauge and tubing provides a simple means to measure crankcase pressure. Excessive pressure is often an indication of piston ring and liner wear. As with all indicators however the measurement alone cannot identify the need for a complete overhaul.Excessive pressure can also be caused by worn valve guides, a damaged fuel ratio diaphragm, a damaged turbocharger seal or a restriction in the crankcase ventilation system. If no other indicators are present, these areas should be investigated. To use the pressure gauge, attach the flexible hose to the high pressure port of the gauge with the other end placed over the engine dipstick tube. If the hose does

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