TM-9-2815-220-24 Maintenance Manual for AVDS-1790-2CA AVDS-1790-DA and AVDS-1790-2DR Engines Download
Page 216 of 1563
TM 9-2815-220-24 ENGINE OIL REPLACEMENT 0031 00 CHECK OIL LEVEL NOTE There are two methods for checking engine oil level on the AVDS- 1790 series engine. The first method is designated as a "Before Operations" oil check and is taken with the engine stopped. The second method is designated as a "During Operations" oil check and is taken with the engine running. 1. Before Operations oil check: It is imperative to check the oil level before operating the engine. This Before Operations check must only be performed when the engine has been shut down for a minimum of 2 hours or a faulty reading will result. There are three key requirements that must be met to assure accurate reading of the oil level gauge rod: a. The engine must have been shut down for a minimum of 2 hours. b. The engine must be flat and level. c. The correct side of the gauge rod must be read. STATIC ENG ADD GALLONS 1 2 3 4 FULL CORRECT SIDE OF GAUGE ROD FOR BEFORE CHECK Example Read the oil gauge rod before you add any oil. Add oil based on your reading. After adding oil, do NOT check with the gauge rod using the "Before Operations" check method unless the engine has been run then shut down for a minimum of 2 hours. Instead, use the "During Operations" method to check the oil level after the engine has been run and warmed up to normal operating temperature. 2. During Operations oil check: During operations it is critical to maintain proper engine oil level. There are four key requirements that must be met to assure accurate reading of the oil level gauge rod for During Operations checks. a. The oil temperature must be less than 140 °F (60 °C). b. The engine must have been idling for at least 5 minutes. c. The engine must be level and flat. d. The correct side of the gauge rod must be read. WP 0031 00-4