Wallenstein FX Series - Hydraulic Fitting Torque

Specifications
FX85, FX110, FX140
Skidding Winch
54
11.3 Hydraulic Fitting Torque
Tighten flare-type tube fittings:
1. Check the flare and flare seat for defects that might
cause leaks.
2. Align the tube with the fitting before tightening.
3. Hand-tighten the swivel nut until it is snug.
4. To prevent the tube from twisting, use two
wrenches. Place one wrench on the connector body
and tighten the swivel nut with the second wrench.
Torque the fitting to the correct specification.
If a torque wrench is not available, use the flats from
finger tight (FFFT) method.
Hydraulic Fitting Torque Specifications
Tube size
OD
Hex size
across
flats Torque
Flats from finger
tight
Inches Inches lbf•ft N•m Flats Turns
3/16 7/16 6 8 2 1/6
1/4 9/16 11–12 15–17 2 1/6
5/16 5/8 14–16 19–22 2 1/6
3/8 11/16 20–22 27–30 1-1/4 1/6
1/2 7/8 44–48 59–65 1 1/6
5/8 1 50–58 68–79 1 1/6
3/4 1-1/4 79–88 107–119 1 1/8
1 1-5/8 117–125 158–170 1 1/8
Specifications are for non-lubricated connections.