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.
Part
Inspection Criteria
Propeller (CCW/CW)
-
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
Rotor (CCW/CW)
-
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
GPS
-
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
GPS Mast
-
No cracks in material
-
All screws tight and rust free
Altitude Detection
Radar
-
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 Units
-
Flowmeter housing intact
-
Acceptable flowrate readouts in AgroSol
-
Flowmeter wire not damaged
(check closely at mount points and where wire enters frame)
Flowmeter Accuracy
-
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
Pumps
-
Pump housing intact
-
Acceptable maximum pump pressure performance
(maximum pressure output will decline over time)
