1988/03/01 Caterpillar

New 1U6602 Tachometer Group Available

Usage:

Reference: Special Instruction, SEHS8854, "Using the 1U6602 Photo-Tach Group. "

The 1U6602 Tachometer Group provides an accurate, digital, noncontact, method for the measurement of rotational engine speed. It measures revolutions per minute by directing an integral light source onto a reflective marker on the rotating object and counting the reflected light pulses. The 1U6602 Tachometer Group can be used to measure the rotational speed on any product where a piece of reflective tape can be placed.

With a 4 1/2 digit liquid crystal display (LCD), the 1U7771 Tachometer provides noncontact measurement of rotational speed over the range of 50 to 20,000 rpm with an accuracy of 1 ± rpm. The Special Instruction gives details on specifications, operation, warranty and repair.

1U6602 Tachometer Group.

1. 6V3073 Plastic Case.

2. 1U7772 Foam Block.

3. 1U7771 Tachometer.

4. "AA" Batteries (four required).

5. 1U6605 Reflective Tape.

6. 1U6603 110/220 V AC Recharger-optional.
1U7445 Nickel Cadmium Battery-optional (four required, not shown).

Caterpillar Information System:

1988/03/01 Be Sure Battery Cable To Starter Connection Has Correct Torque

1988/03/01 New Publication Available-"Diesel Fuels And Your Engine "

1988/02/01 CXP Fluids Available From Caterpillar Inc.

1988/02/01 Fluid Sampling Tools For Non-Pressurized Compartments

1988/02/01 New 1U8271 Timing Advance Holding Tool Available

1988/02/01 Analyzing Caterpillar And Competitive Antifreezes For Amount Of Silicates

1988/02/01 Servicing And Programming PEEC Truck Engines Equipped With Kysor ® Shutdown System

1988/01/01 New Engine Oil Coolers Have Rubber End Sheets

1988/01/01 8T5314 Socket Adapter Available To Correctly Install Alternator Pulley Nut

1988/01/01 Die Cast Flywheel Housing Has Less Weight

1988/01/01 New Suction Bell Assemblies, Bolts, And Washers Used In Sump Oil Lines Groups

1987/12/01 List of Service Publications

1988/03/01 Updated 8C5919 3406B PEEC Service Program Module Available

1988/03/01 Updated Executive Program Module Available For The 8T8697 Electronic Control Analyzer Programmer (ECAP)

1988/04/01 Former Exhaust Valve Bridge For Jacobs Brake ® Interferes With 40 mm Nozzle Adapter; New Bridge Used

1988/04/01 Stepped Compression Ring Temporarily Used

1988/04/01 Extraction Tools For "Live Oil Sampling "

1988/04/01 List of Service Publications

1988/04/01 Remanufactured Cylinder Heads For 3406 Engines

1988/05/01 Ways To Prevent Overcooling Of 3306B (63Z, 76R) Truck Engines

1988/05/01 New Components Used In Water Lines Groups

1988/05/01 New Diaphragm For Brakesaver Control Valve

1988/05/01 New 1U9139 Universal Fuel Line Pickup Available

1988/05/01 New 1U8115 Generator Test Lead Set With Insulated Tips