GAUGE AS 2174130 - Caterpillar

If hydraulic system drift is experienced while operating at high outside temperatures, use SAE30 hydraulic oil.
SAE30 IS NOT recommended if start up temperatures will be below 4°C (40°F).
Use of SAE30 hydraulic oil in high temperatures will minimize drift, and increase pump life, at temperatures up to 55°C (125°F).A mixture of 55% SAE40 and 45% SAE10 oil is the equivalent of SAE30.The equivalent of SAE30 oil in the hydraulic system can be obtained by draining the SAE10W oil from the tank and refilling with SAE40 oil.See "Hydraulic System" at "Every 2000 Service Hours or 1 Year" for hydraulic tank drain and refill instructions.Air Inlet System
Check the precleaner screen daily for accumulation of dust and debris.Remove any dust and debris as needed. If the indicator light comes on shortly after installing a cleaned primary element, install another clean element, or a new element.The primary element can be cleaned up to six times before replacement. The element, when cleaned, should be thoroughly checked for rips or tears in the filter material. Replace the primary element every year, even though it has not been cleaned six times.The secondary filter element should be replaced at the time the primary filter element is serviced for the third time.If the indicator light comes on after installation of a clean primary element, or if the exhaust smoke is black, install a new secondary element.
Do not try to reuse the secondary element by cleaning it. Always use a new element.
Electrical System
When jump starting the machine, follow the instructions in the Operation Section to properly start the machine.When using an external power source to start the machine, turn the disconnect switch off and remove the key before attaching the jumper cables.This machine has a 24 volt starting system. Use only equal voltage for jump starting. Use of a welder or higher voltage will damage the electrical system.
An emergency starting kit is available for starting from an external power source. It provides a permanent receptacle on the machine to plug in a jumper cable.Two different cable assemblies are available for auxiliary starting. One for starting from an operating machine (with a receptacle) and one for starting from an auxiliary power pack. Your Caterpillar dealer can provide you with the correct cable assemblies for your operation.Engines installed without engine-to-frame ground straps can be damaged by electrical discharge.To prevent electrical discharge damage, check to make sure the machine's electrical system has an engine-to-frame ground strap. For machines which have the alternator connected to an engine component, the ground strap must connect that component to the frame.Some machines have starter-to-frame ground straps. But, many of these starters are not electrically grounded to the engine. They have electrical insulation systems. For this reason, the starter-to-frame ground strap may not be an acceptable ground.Scheduled Oil Sampling (S O S)
Use Scheduled Oil Sampling (S O S) to monitor the condition and maintenance requirements of your equipment. Each oil sample should be taken when the oil is warm and well mixed, to ensure that the sample