Warming Engine

RG13135-UN-07OCT03

Oil Pressure And Coolant Temperature Gauges (Option A)

RG29321-UN-23FEB17

Oil Pressure And Coolant Temperature Gauges (Option B)

A - Oil Pressure Gauge

B - Coolant Temperature Gauge

IMPORTANT: To assure proper lubrication, operate engine at or below 1200 rpm with no load for 1–2 minutes. Extend this period 2–4 minutes when operating at temperatures below freezing.

Engines used in generator set applications where the governor is locked at a specified speed may not have a low idle function. Operate these engines at high idle for 1 to 2 minutes before applying the load. This procedure does not apply to standby generator sets where the engine is loaded immediately upon reaching rated speed.

1. Check oil pressure gauge (A) as soon as engine starts. If gauge needle does not rise above minimum oil pressure specification within 5 seconds, stop the engine and determine the cause. See General Marine Engine Specifications and Engine Power And Speed Specifications in the Specifications Section for all oil pressure, engine speed, and coolant temperature specifications.

2. NOTE: On certain engines, the oil pressure and coolant temperature gauges are replaced by indicator warning lights. The lights must be "OFF" when engine is running.

   Watch coolant temperature gauge (B). Do not place engine under full load until it is properly warmed up. See General Marine Engine Specifications in the Specifications Section for the normal engine coolant temperature range specification.

   NOTE: It is a good practice to operate the engine under a lighter load and at lower speeds than normal for the first few minutes after start-up.