Creation: 01.31 - 2014
1-2-7
GPU - 406
TLD ground power units have been designed to reduce overall maintenance, but some steps are required to be
taken for the continued reliability of the Tier 4 Final engine and to prevent unexpected interruption in power
delivery to aircraft.
- Maintain a DEF level of greater than 10% as indicated on the generator controller screen
- Only fill the DEF tank with ISO – compliant DEF or ADBLUE.
- Only use diesel engine motor oil that meets the CJ-4 standard in North America or the ACEA E9
standard in Europe.
- Only use ultra low-sulpher diesel fuel with less than 15 PPM of sulphur.
- Never attempt to deliver power to an aircraft while engine diagnostic trouble codes are present.
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