VALVE SERVICE GROUP 9F2392 - Caterpillar

Engine3516C (S/N: SKC1-UP; SCJ1-UP; SCK1-UP; SFK1-UP)C175-16 (S/N: WYC1-UP)C175-20 (S/N: R4F1-UP)Introduction
The problem that is identified below does not have a known permanent solution. Until a permanent solution is known, use the solution that is identified below.Problem
There is a potential that the 258-1543 Magnetic Switch Gp (DEF Heater Relay) could leak AC voltage to the case of the relay body when energized. This relay is located inside the dosing cabinet and should not have outside access during normal operation.Solution
Use extreme caution when working inside the dosing cabinet. When working inside the dosing cabinet, ensure that the 120 VAC breaker is turned to the Off position.
Illustration 1 g06103523