PUMP GP-PISTON 3073063 - Caterpillar

Introduction
When the words "use again" are in the description, the specification given can be used to determine if a part can be used again. If the part is equal to or within the specification given, use the part again.When the word "permissible" is in the description, the specification given is the "maximum or minimum" tolerance permitted before adjustment, repair and/or new parts are needed.A comparison can be made between the measurements of a worn part and the specifications of a new part to find the amount of wear. A part that is worn can be safe to use if an estimate of the remainder of its service life is good. If a short service life is expected, replace the part.Troubleshooting (Indicators, Controls & Air Inlet Heater)
Troubleshooting can be difficult. The Troubleshooting Index gives a list of possible problems. To make a repair to a problem, make reference to the cause and correction on the pages that follow.This list of problems, causes, and corrections will only give an indication of where a possible problem can be, and what repairs are needed. Normally, more or other repair work is needed beyond the recommendations in the list.Remember that a problem is not normally caused only by one part, but by the relation of one part with other parts. This list is only a guide and cannot give all possible problems and corrections. The service technician must find the problem and its source, then make the necessary repairs. For each problem, a list of possible causes and corrections is given. The list of probable causes and corrections should be performed in numeric sequence.1. Contactor Switch For Water Temperature Does Not Activate Alarm.2. Contactor Switch For Water Temperature Activates At Wrong Temperature.3. Contactor Switch For Oil Pressure Does Not Activate Alarm.4. Electrical Indicators Give Wrong Readings.5. Air Inlet Heater.Troubleshooting Problems
Problem 1: Contactor Switch For Water Temperature Does Not Activate Alarm. Probable Cause:* Wrong Connections* Failure Of Alarm* Low Water Level In Cooling System* Wrong Setting Of Switch1. Wrong Connections: Check connections and wiring. Correct where necessary.2. Failure Of Alarm: Check alarm for proper operation.3. Low Water Level In Cooling System: Fill the cooling system.4. Wrong Setting Of Switch: Make a test of temperature setting and if necessary install new contactor switch with correct setting. See specifications. Problem 2: Contactor Switch For Water Temperature Activates At Wrong Temperature. Probable Cause:* Wrong Setting Of Switch1. Wrong Setting Of Switch: Make a test of temperature setting and if necessary install new contactor switch with correct setting. See specifications. Problem 3: Contactor Switch For Oil Pressure Does Not Activate Alarm. Probable Cause:* Wrong Connections* Failure Of Alarm* Wrong Setting Of Switch1. Wrong Connections: Check connections and wiring. Correct where necessary.2. Failure Of Alarm: Check alarm for proper operation.3. Wrong Setting Of Switch: Make a test of temperature setting and if necessary install new contactor switch with correct setting. See specifications. Problem 4: Electrical Indicators Give Wrong Readings. Probable Cause:* Wrong Connections* Sending Units Have A Failure* Wrong