SWIVEL GP 1624696 - Caterpillar

Ties - As Needed 1 - 9G9151 Clip ** 1 - 7N9737 Housing - Plug ** 1 - 7N7779 Socket ** 1 - 7N7780 Pin * Not needed if engine has digital tachometer; pickup is already installed on engine. ** One of several parts in 6V3000 General Repair Kit for wiring harnesses. -6V2744 Wire-Electrical Bulk (3-8S4626 Wire Splices Also Needed) 3508 Engines 210 cm (83.0") 3512 Engines 260 cm (102.0") 3516 Engines 310 cm (122.0") -Additional 6V2744 Wire Needed If Equipped With Digital Tachometer 125 cm (48") 125 cm (48") 125 cm (48") -Belden Corporation No. 8760 or any 18 gauge, 2 conductor, 100% shielded with electrical drain wire is acceptable. Do not connect 2 smaller gauge wires in parallel. Action Requested (Parts Stock Action Needed) No action is necessary unless problems occur with the electric shutoffs. The purpose of this Program is to extend consistent and timely support to users with actual operational problems with the shutoff systems. If this occurs, install the listed new parts. Use the attached Procedure and perform the described calibrations and functional checks. If problems occur with one engine in a multiple engine installation, rework all the engines at the same time if they are included in the affected list of serial numbers. Also, remove all 7N7412 and 2W8375 Sensor Assemblies from parts stocks. Warranty Allowances List the new parts on your claim. If there is related damage to other parts because of a shutoff failure, list these parts on the same claim. No credit will be allowed for parts replaced due to normal wear or overhaul practices. The participation by Caterpillar and suggested participation by dealers and users is prorated as follows (no other expenses are allowable): (SEE ILLUSTRATION) Parts Disposition Dispose of the parts in accordance with your Warranty Bulletin on "Warranty Parts Handling". Termination Date November 30, 1986. Attach. MODIFICATIONS TO ELECTRICAL SHUTOFF SYSTEM ON 3500 SERIES ENGINES If a problem occurs with the shutoff system, see October 19, 1983 Service Letter, PS0179 for affected engine serial numbers and parts needed. After installation of the applicable parts, do the calibrations and tests on all engines. Replacing The Speed Sensor With Magnetic Pickup (Not Applicable If Equipped With Digital Tachometer) This part of the rework is needed on all earlier engines equipped with the speed sensor. Later engines in the affected Service Letter list use a digital tachometer and a magnetic pickup on the flywheel housing. Do not replace the pickup on these engineS, but do replace the unshielded pickup cable with new shielded cable, and install the new electric speed switch. See next topic. 1. Remove speed sensor and sensor drive tang from the tachometer drive. See Illustration 1. ILLUSTRATION 1 (SEE ILLUSTRATION) ILLUSTRATION 2 (SEE ILLUSTRATION) 2. Take the cap off the sensor and remove the gasket from the cap. This gasket can prevent thread engagement.