Stator - Test
Stator Winding Continuity Test
Show/hide table
Illustration 1 | g03221657 |
Stator winding continuity test (1) Rotor (2) Stator leads |
Show/hide table
Tools Needed     | Qty     |
Ohm Meter (Capable of measuring less than 0.1 ohms)     | 1     |
- Put the multimeter on the 200 ohm resistance (ohms) scale. Connect the multimeter leads between each pair of stator leads (2) of stator (1) for a total of three readings.
- The resistance values should be as follows. See Specifications for the K1, 24V 3E-7295 Charging Alternator Gp, 8C-5535 Charging Alternator Gp, and 7T-2876 Charging Alternator Gp .
Charging Alternator Gp ... .14 to .15 ohms
9X-0341 Charging Alternator Gp ... .55 to .56 ohms
9W-3043 Charging Alternator Gp ... .20 to .22 ohms
2Y-4212 Charging Alternator Gp ... .41 to .51 ohms
9Y-8310 Charging Alternator Gp ... .34 to .42 ohms
- If the resistance is not correct, the stator is open or shorted and must be replaced.
Stator Winding Ground Test
- Put the multimeter on the 20M resistance (Ohms) scale. Connect a multimeter lead to each stator lead (2) and touch the other meter lead to the stator frame.
Show/hide table
Illustration 2 | g03221657 |
Stator winding continuity test (1) Rotor (2) Stator leads |
- The resistance value should be 100000 ohms or greater (meter reading 0.10 or greater).
- If the meter reading is low, the stator is grounded and must be replaced.
Caterpillar Information System:
2012/11/27 Improved Conveyor Flashing and Retainer Plates Are Now Used on Certain Cold Planers {6620}
2013/04/30 A New Scraper Spring Is Now Used for Certain Paving Products {6607}
Alternator - Bosch K1/N1 Capacitor - Test
2012/09/25 New Automation Electronic Control Module Now Available for MINEGEM and Cat® Command for Underground Equipped Machines {7610}
2012/09/27 New Lift Arm Grease Track Protection Bar Installation Procedure Now Available for Certain Load Haul Dump Machines {6107, 7510}
2013/09/27 A New Retainer Is Now Used in the Differential Group on 793D and 793F Off-Highway Trucks {3256, 3258, 3281}
2013/04/03 A New Seal Assembly for the Differential and Bevel Gear Group Is Now Used on Certain 793 Off-Highway Trucks {3256, 3258, 3281, 7555}
559C and 579C Knuckleboom Loaders Boom Cylinder
2012/09/19 Improved Debris Protection Is Now Used For The Tilt Position Sensor On Certain Compact Track Loaders And Skid Steer Loaders {1408, 6129}
2012/09/11 The Circle Manufacturing Process Has Been Improved on Certain Motor Graders {6154}
2012/09/21 New O-Ring Seal Is Now Used in the Lift Cylinder Group for 16M Motor Graders {5102}
559C and 579C Knuckleboom Loaders Stick Cylinder
770G and 772G Off-Highway Trucks TA2 Technical Inspection {0372, 1000, 7000, 753T, 7565} 770G and 772G Off-Highway Trucks TA2 Technical Inspection {0372, 1000, 7000, 753T, 7565}
Alternator - Bosch K1/N1 Field Winding - Test
Health Interface Module Setup and Configuration Guide System Setup
559C and 579C Knuckleboom Loaders Stabilizer Cylinder
CB44B Vibratory Asphalt Compactor Propel System Speed Sensor (Propel Motor) - Test - Solid Drum
793F AC Off-Highway Truck Hydraulic Fan and Steering System Accumulator (Steering) - Test and Charge
CB44B Vibratory Asphalt Compactor Propel System Pump Control (Electronic Displacement Control) Neutral - Test and Adjust - Split Drum
VIMSpc Update Release Information{0785, 7601} VIMSpc Update Release Information{0785, 7601}
MH3049 Material Handler Hydraulic System Relief Valve (Signal Limiter) - Test and Adjust
Field Installation of the 387-6452 Auxiliary Lines Kit , 387-6453 Auxiliary Lines Kit , and 387-6454 Auxiliary Lines Kit {5057} Field Installation of the 387-6452 Auxiliary Lines Kit , 387-6453 Auxiliary Lines Kit , and 387-6454 Auxiliary Lines Kit {5057}
2013/04/12 New Software Is Now Available for Cat® Product Link 522 Systems {7494, 7606, 7620}
2012/10/11 Correction to Custom Service Information , "254-0348 Control Gp-Parking Brake (Automatic) Custom Product Support Literature for the R1700G <B>S/N:</B>8XZ1-UP Load Haul Dump" {1408, 4250}