Flare Nut's Fastening - Hyundai HSH-I073NBE Service Manual

Leakage /Freon - 4/4
Factor
Troubles &
Causes
Incompletely fastened nuts
Fastening Torques of Flare Nuts
Tube Dia.(mm)
6.35
9.52
15.88
19.05
Air Conditioner Service Manual

Flare nut's fastening.

Damaged flares by over-fastening make gas leakages.
And incompletely fastened nuts too.
Defect Details
Indoor Side
Torques (Kg-Cm)
160~200
350~450
450~550
550~650
Damaged Flares by
over-fastening
Outdoor Side
Guidelines
Torque-wrench is required for proper fastenings.
Check gas leakages of 4 fastened points and welded
points with soap bubbles ctc.
-High pressure points: amid compressor's running.
-Low pressure points: amid compressor's not running.
84
Case-4