GENERAL HYDRAULIC SYSTEM REPAIR - Continued
A flareless fitting uses a straight thread. The female fitting contains a ferrule that couples with a
cavity in the male fitting. Use recommended torque values in WP 0087 to tighten nut. If this
fitting is overtorqued, the ferrule will be deformed and the fitting will leak.
Figure 102. Flareless Fitting
INSTALLATION OF ADJUSTABLE FITTINGS
Apply light weight oil (OE/HDO-10) to O-ring (preformed packing).
Packing must be positioned fully into groove and not on threads. Failure to
comply may result in damage to equipment.
Gently push backup washer and O-ring all the way into groove.
Turn locknut down until locknut contacts backup washer.
Install fitting on boss until backup washer contacts face of boss.
Position fitting to desired position by backing out fitting up to one full turn. Hold fitting in desired
position and tighten locknut.
Connect tube to fitting after fitting is properly positioned and tightened.
Figure 103. Adjustable Fittings