ELECTRICAL AR 3212415 - Caterpillar

Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the machine. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to Special Publication NENG2500, "Caterpillar Tools and Shop Products Guide" for tools and supplies suitable to collect and contain fluids in Caterpillar machines.Dispose of all fluids according to local regulations and mandates.
Test Step 1. Turn the steering wheel slightly and release.Expected Result:The steering wheel returns toward the center.Results:
Yes - Stop.
No - Proceed to test step 2.Test Step 2. Be sure to check the steering column for binding.Expected Result:The steering column has been checked for binding.Results:
Yes - Proceed to test step 3.
No - Proceed to test step 4.Test Step 3. Make sure that the engine is stopped and make sure that the hydraulic system pressure is zero before you disconnect any hydraulic lines.
Disconnect the steering metering pump and remove the steering metering pump. Replace the steering metering pump.Remove...Reference: Refer toTroubleshooting, "Metering Pump (Steering) - Remove".Install...Reference: Refer toTroubleshooting, "Metering Pump (Steering) - Install".Parts...Reference: Refer toTroubleshooting, sebp2784, "160-9727 PUMP GP-METERING PIN 8PS1-UP. (BASIC) PART OF 144-5587 CONTROL GP-STEERING".Expected Result:The steering metering pump is replaced and the steering column turns freely.Results:
Repair Complete - Stop.Test Step 4. Perform the following test: Bearing/Knuckle for Steering Column - InspectResults:
OK - Stop.
REPAIRED, OK - Stop.