ENGINE AR-COMPL 20R7002 - Caterpillar

Illustration 1. The 6V3100 Diesel Timing Indicator Group
Illustration 2. Installation of transducer and adapters in fuel injection pump.The 6V3100 Diesel Timing Indicator Group needs 11 to 40 volts direct current at 0.1 amperes to operate. It can get its power from any 12-, 24- or 32-volt vehicle electrical system, or, for applications where the engine has no electrical system, two 6-volt lantern batteries connected in series.
All cable assemblies used in the indicator group are approximately 5.5 m (18 ft) long, and their connections will work only one way. Wrong connections, including polarity for power, are not possible.
In the operator's compartment, the indications are given on a liquid crystal display (LCD) for the serviceman.
The 3.2 kg (7 lb) indicator group is calibrated (adjusted) by the dealer with a 5P9698 Calibrator when an internal calibrator shows it is necessary.
Troubleshooting the 6V3100 Diesel Timing Indicator Group is easy. A single circuit board can be repaired at most electronic repair shops. Electronic service information will be given in a future Special Instruction. If desired, the indicator group can be sent for repairs, to:
Snap-On Tool Corporation
Midwest Service Center
6527 28th Avenue
Kenosha, Wisconsin 53140
U.S.A.
Telephone: 414-656-5499
Special Instruction, Form No. SEHS7742 has complete instructions for use, adjustment and dealer maintenance of the 6V3100 Diesel Timing Indicator Group.
The June 16, 1980 Service Magazine article, "Timing Groups To Be Canceled," on page 4, told you the 1P3500 Timing Group was canceled and the 2P8280 Timing Group will be canceled. The 6V3100 Diesel Timing Indicator Group is the replacement for both of those groups. Add this information and a reference to this article in the June 16, 1980 Service Magazine.
Illustration 3. Installation of transducer and adapter in flywheel housing.