Electric auxiliary dry air pumps are recommended for single engine aircraft flown in IFR conditions as a back-up in the event the primary vacuum pump fails. These pumps are FAA-PMA approved as direct replacements for Airborne pumps previously installed under STC eligibility and STC approval for these pumps for many additional aircraft is pending. |
Please note, Aircraft Spruce Australia's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce Australia assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.
TYPE: 4A3-1
VDC NOMINAL: 14
Hg VAC INTERNAL: 5"
SCFM FLOW MIN: 4.5
AMPS MAX CONT: 17
WEIGHT LBS. APPROX. (MOTOR/PUMP ONLY): 6
Per Vendor: 4A3-1 (10-00584) is 14vdc and is shipped with mounting bracket. The 4A2-1 (10-00585) is 28vdc and is not shipped with bracket.
Per Tempest: It is determined by the aircraft manufactures maintenance manual. It should give times for replacement or overhaul period of items.
It has a Wear Indicator Port that would allow you the check the vane condition but no elapsed time indicator.