AIR COMPRESSOR GP 3850937 - Caterpillar

Engine: Commercial
AllReference: Special Instruction, SEHS9615, "Servicing DT Connectors"Description
Illustration 1 g00745578
110-8769 Wire Assembly (1) Rubber boot (2) Terminal (3) Electrical Wire (410 mm (16.1 inch), 16 gauge - blackIf the alternator R-terminal connector needs repair, proceed with the following steps.
Cut off the damaged harness connector.
Replace the damaged connector with the 110-8769 Wire Assembly (Illustration 1).The 110-8769 Wire Assembly will service the R-terminal connector on the machines and the engines that are listed in Table 1.
Table 1
ALTERNATORS SERVICED WITH 110-8769 WIRE ASSEMBLY    
Description     Service Manual     Alternator Part Numbers    
Series 10-SI/CS-121     SENB8373     -    
Series 20-SI     SENR4978     7G-7889, 6N-9294, 3T-6352, 5N-5692    
Series 21-SI     SENR4757     107-7977, 132-2156, 121-4134, 121-4135, 117-1379, 125-9597    
Series 26-SI     SENR7508     3E-7577, 112-5041, 3E-7892    
Series 30-SI     SENR7508     9X-7803, 114-2401, 4N-3986, 8C-6163    A 115-8109 Wire Splice is used to attach the 110-8769 Wire Assembly to machine harnesses and engine harnesses. This sealed splice does not require soldering. The parts that are required for a sealed splice are listed in Table 2.
Table 2
PARTS REQUIRED FOR A SEALED SPLICE    
Quantity     Description     Part Number     Wire Size    
1     Wire Splice     115-8109     16 &18 AWG    
1     Connector Pin     8T-8729     16 &18 AWG    
1     Connector Socket     8T-8730     16 &18 AWG    Procedure
Illustration 2 g00745638
Sealed splice (1) Electrical Wire (from 110-8769 Wire Assembly ) (2) 186-3735 Connector Pin (3) 115-8109 Wire Splice (4) 186-3736 Connector Socket (5) Wire from engine or machine harness
Table 3
Tools Needed    
Tool     Part Number     Quantity    
Crimp Tool (12-18 AWG)     1U-5804     1    The following procedure explains the procedure that is used to splice the 6A-3361 Electrical Wire to the engine harness or to the machine harness. Refer to Illustration 2.
Cut off the damaged R-terminal connector from the machine harness or from the engine harness.
Prepare the wires. Refer to Special Instruction, SEHS9615, "Servicing DT Connectors".
Complete the following steps in order to secure an 8T-8729 Connector Pin to the end of the 110-8769 Wire Assembly.
Crimp an 8T-8729 Connector Pin to the end of the 110-8769 Wire Assembly. Use the 1U-5804 Crimp Tool .
Insert the connector pin into the socket end of the 115-8109 Wire Splice .
To ensure that the connector pin is locked in place, pull on the wire.
Complete the following steps in order to secure an 8T-8730 Connector Socket to the end of the machine harness or engine harness.
Crimp an 8T-8730 Connector Socket to the end of the machine or engine harness. Use the 1U-5804 Crimp Tool .
Insert the connector socket into the pin end of the 115-8109 Wire Splice .
To ensure that the connector socket is locked in place, pull on the wire.
Reconnect the R-terminal connector to the alternator. Confirm proper operation.Note: The 8T-8729 Connector Pin and the 8T-8730 Connector Socket can be removed from the 115-8109 Wire Splice with a 4C-4074 Contact Removal Tool .