PUMP GP-FUEL PRIMING 2552969 - Caterpillar

Caterpillar: Confidential Yellow
PARTS STOCK ACTION ONLY - INSPECT ALL 2N2384 AND 2N2385 FUEL SHUTOFF SOLENOIDS IN PARTS STOCK - MAILED US WORLDWIDE EXCEPT BRA ZIL
  The information supplied in this service letter may not be valid after the termination date of this program.   Do not perform the work outlined in this Service Letter after the termination date without first contacting your Caterpillar product analyst.
INSPECT ALL 2N2384 AND 2N2385 FUEL SHUTOFF SOLENOIDS IN PARTS STOCK, 1259, PI7181 U-105 A-50 AU-81 C-103 E-66 O-77 parts stock action only Termination Date
January 31, 1987
Problem
On some 2N2384 and 2N2385 Fuel Shutoff Solenoids the plungers have too much travel and cause the pull coil to energize again.
Action Required
Use the information which follows and a 6V3030, 6V7070 or 6V7700 Digital Multi-Meter to check the 2N2384 and 2N2385 Solenoids. 1. Connect the meter to the "R" and the unmarked terminals. (Do not connect to the "g" terminal.) Set the meter on the 200 Ohm range. 2. Check the meter reading with the plunger in the extended position. It should be: 2N2384 - less than 1 Ohm 2N2385 - less than 2 Ohms. 3. Push the plunger completely into the solenoid, and hold it there. The meter should show: 2N2384 - over 10 Ohms 2N2385 - over 40 Ohms. If the measured resistance in Step 3 is less than the specification, the solenoid is defective and should be removed from parts stock. WARRANTY ALLOWANCES Submit one claim for all 2N2384 and 2N2385 Solenoids in parts stock that are found to be defective.
Parts Disposition
U.S. and Canadian Dealers Return all 2N2384 and 2N2385 Solenoids that are removed from parts stock and a copy of the claim to: Caterpillar Inc. Attn: Supplier Recovery Supervisor Warehouse #4 Docks 5 thru 9 8201 N. University Peoria, IL 61615 All Other Dealers Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.