PIN AS 2375090 - Caterpillar

Note: The graphics that are illustrated in this section refer to the solenoids that are 24 VDC. Solenoids that are 12 VDC use the same procedure, but only one battery that is 12 VDC is used.
Table 1
Required Tools    
Part Number    Description    Quantity    
6V-7070     Digital Multimeter     1    
225-8266     Ammeter Tool Gp     1    
4C-4911     Battery Load Tester     1    
Illustration 1 g00713118
Basic solenoid circuitA basic four terminal starting motor solenoid circuit is shown in Illustration 1. The two windings that are found in the solenoid are the hold-in winding and the pull-in winding. The windings can be checked with the following procedures.Hold-in Winding Test
Illustration 2 g00713128
Hold-in winding test
Refer to Illustration 2 in order to make the connections to the solenoid. Disconnect all other leads to the solenoid.
Close the switch. Observe the reading on the multimeter. Use the battery load tester to adjust the battery voltage until the correct voltage is obtained. Refer to Table 2.
Table 2
Voltage
Specifications    
Model    Operating Voltage    Measured Voltage    
37-MT     12V     12V    
37-MT     24V     20V    
41-MT