PUMP GP-PISTON 2290101 - Caterpillar

Cooling System Conditioner Liquid
A 3% to 6% concentration of liquid Caterpillar cooling system conditioner, or equivalent, can be maintained by adding conditioner every 250 service hours of operation.Fuel System
Fill the fuel tank at the end of each day of operation to drive out moist air and to prevent condensation.Do not fill the tank to the top. Fuel expands as it gets warm and may overflow.Do not fill the fuel filters with fuel before installing them. Contaminated fuel will cause accelerated wear to the fuel system parts.
Check the fuel level on the level gauge. Drain the water and sediment from the fuel tank at the start of a shift or after the fuel tank has been filled and allowed to stand for 5 to 10 minutes.After changing the fuel filters, always prime the fuel system to remove air bubbles from the system.Drain water and sediment from any fuel storage tank weekly, and before the tank is refilled. This will help prevent water or sediment being pumped from the storage tank into the machine fuel tank.Use only fuel as recommended in the "Coolant, Fuel and Lubricant Specifications" section of this manual.Hydraulic System
Make-up oil added to the hydraulic tank must mix with the oil already in the system. Use only petroleum products unless the system is equipped for use with special products.If the hydraulic oil becomes cloudy, water or air is entering the system. Water or air in the system will cause pump failure. Drain the fluid, retighten all hydraulic suction line clamps, purge and refill the system. Consult your Caterpillar dealer for purging instructions.
Air Inlet System
If the engine air filter light comes on, or the exhaust smoke is black, service the engine air filter element. Replace the element with a new or cleaned element. If the light comes on immediately after installing a cleaned element, install a new element or another clean element.The element can be cleaned up to four times before replacement. The element, when cleaned, should be thoroughly checked for rips or tears in the filter materials. Replace the element every year, even though it has not been cleaned four times.Air Conditioner System (If Equipped)
Even in off-seasons, the air conditioner should be kept ready for operation all the year round.Regardless of the season, operate the air conditioner for a few minutes at least once a week to rotate the compressor: this prevents freon leakage caused by a dry shaft seal on the compressor.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 is representative of the oil in the compartment. When using the drain stream to obtain the oil sample, do not collect the sample from the first or final draining. Consult your Caterpillar dealer for complete information and assistance in establishing a Scheduled Oil Sampling program for your equipment.General
Accumulated grease and oil on a machine is