Hylio Agrodrone (AG-122) Maintenance Manual
©2020 Hylio Inc. All Rights Reserved 8
Inspection Criteria
If the part does NOT pass the listed criteria upon inspection, replace/repair part immediately. As
a part of the inspection for each part, check for tightness of all fasteners listed for that part in the
component identification description. Check for tightness to the listed torque.
- No cracks or chips larger than 0.1-inch radius
- Propeller blade level with arm
- M3x12 mount screws tight and rust free
- 10 mm lug bolts tight and rust free
- No rattling or scratching noise when spun by hand
- No large dents or cracks in rotor housing
- LED mount screws tight
- Rotor guard mount screws tight
Ground Station Link
Radio Antenna
- Antenna casing structurally intact
- Antenna screwed in tight to antenna mount
(comes loose often)
- Antenna mount screws tight and rust free
- Correct LED indicator colors when powered on
- GPS secured straight and tight to mast (Double sided tape OK)
- GPS housing and wire not damaged
(check closely at mount points and where wire enters frame)
- Acceptable GPS accuracy performance
- GPS does not frequently give errors in AgroSol
- No cracks in material
- All screws tight and rust free
- Radar housing intact
- Radar wire not damaged
(check closely at mount points and where wire enters frame)
- Unit does not heat up when powered on
- Acceptable altitude readouts in AgroSol
- Flowmeter housing intact
- Acceptable flowrate readouts in AgroSol
- Flowmeter wire not damaged
(check closely at mount points and where wire enters frame)
- Flowrate performance during flight (gal/ac output) should be
within 2%, or 5% in the worst case
- Set a constant test flowrate and measure output over 1 minute
using a graduated cylinder, actual flowrate should match desired
- If flowrate is not to desired accuracy, perform the flowmeter
calibration as described in the software manual
- Pump housing intact
- Acceptable maximum pump pressure performance
(maximum pressure output will decline over time)
