Accession Number : ADA112891

Title :   Scavenging Engine Oil Pumps for Oil Service - J57 TF33 Series Engines.

Descriptive Note : Final rept.,

Corporate Author : STRATEGIC AIR COMMAND OFFUTT AFB NE AIRCRAFT ENGINEERING DIV

Personal Author(s) : Pecor,Donald L

PDF Url : ADA112891

Report Date : 26 Jun 1980

Pagination or Media Count : 25

Abstract : Static oil drain-down occurring between the postflight inspection and next flight can fill the N2 oil pump and accessory housing on J57 and TF33 jet engines to a point where it drains overboard on the ramp. This can deplete the oil supply, resulting in launching of aircraft with less than full oil quantity. The purpose of this test was to evaluate a method of turning over an engine with the starter to rotate the gear type oil pumps and scavenge oil back to the tank. For testing the N2 gearboxes were filled to their maximum capacity with oil. The engines were then motored with the starter for two minutes and checked for residual oil quantities. (Author)

Descriptors :   *Pumps, *Oils, *Aircraft engine oils, *Salvage, Gears, Jet engine fuels, Bearings, Residuals, Launching, Statics, Test methods, Maintenance

Subject Categories : Pumps, Filters, Pipes, Tubing, Fittings & Vlvs

Distribution Statement : APPROVED FOR PUBLIC RELEASE