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Would you stake your life, right now, on the condition of your equipment?
NEWS | Aug. 18, 2023

PQAS-E: Newer SST25 Generator Needs OEM Support

BLUF: You can get wiring diagrams and technical assistance for troubleshooting the newer PQAS-E SST25 generator from the original equipment manufacturer (OEM).

Photo by Sgt. 1st Class Naurys Marte
Some Petroleum Quality Analysis Systems-Enhanced (PQAS-E), NSN 6640-01-547-1760 (EIC-ZBX), LIN P25743 have newer SST25 generators. The newer-version SST25 generators install correctly but function differently internally.
SST25 generators sold after June 2019 have internal actuators, while the older models use the advanced proportional engine control system (APECS). The wiring system of the newer generators is not covered by the PQAS-E TMs.
Serial numbers for the affected newer generators are provided below:
Serial numbers of SST25 generators with internal actuators
187692 1904760
187693 1904761
187694 1904762
187695 1904763
187696 1904764
187697 1904765
187698 1904766
187699 1904767
187700 1904768
187701 1904769
187702 1904770
187703 1904771
The OEM, Fischer Panda, is prepared to support the newer SST25 generators that have internal actuators and provide wiring diagrams. For assistance, contact:

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