Operator Preventive Maintenance Checks and Services-continued.

Operator Preventive Maintenance Checks and Services-continued. - TM-9-6115-668-13_77

Operator Preventive Maintenance Checks and Services-continued. - TM-9-6115-668-13_79

TM-9-6115-668-13 5Kw 28VDC Auxiliary Power Unit (APU) MEP 952B Manual
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TM 9-6116-668-13 tern No. 18 Before 19 20 21 22 Before Before Slave receptacle Before Oil level Before Table 2-4 Operator Preventive Maintenance Checks and Services-continued. Interval Location Item to Check/Service ENGINE COMPARTMENT- continued Scavenge pump Supply air duct (cooling air in- Inspect supply air duct for loose- Supply air duct is let for diesel engine) ness, damage, or dirt. clogged. Inspect slave receptacle, and Slave receptacle protective cover for looseness, connector is dam- damage, or corrosion. aged. Fuel prefilter and two step fuel filter Procedure Capable if: Inspect scavenge pump for leaks or loose, damaged, or missing parts. Check diesel engine oil level (check Oil level is below cold oil level dots on dipstick). required level. a. Inspect fuel prefilter and two step fuel filter for leaks, loose or damaged parts. b. Drain condensation from fuel prefilter. 1. Open flap (1). CAUTION Place collection container under fuel prefilter and two step fuel filter. 2. Hold small container below filter cup (3) of fuel prefilter (2). 3. Remove drain plug (4) until mixture of fuel and condensa- tion water emerges from drain plug hole. 4. When only fuel emerges, screw drain plug (4) back in. 5. Tighten drain plug (4). Not Fully Mission Class III oil leak. Loose, damaged, or missing parts. Any fuel leaks. Diesel engine runs roughly after starting because condensa- tion water has col- lected. 2 - 2 3

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