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Hydraulic Fitting Torque
1. Check flare and flare seat for defects that might
cause leakage.
2. Align tube with fitting before tightening.
3. Hand-tighten swivel nut until snug.
4. To prevent twisting the tube, use two wrenches.
Place one wrench on the connector body and
tighten the swivel nut with the second. Torque to
values shown.
If a torque wrench is not available, use the FFFT (Flats
From Finger Tight) method.
Wheel Lug Torque
It is an extremely important safety procedure to apply
and maintain proper wheel mounting torque on your
trailer axle. Torque wrenches are the best method to
assure the proper amount of torque is being applied to
a fastener.
Wheel lugs should be torqued before first road use
and after each wheel removal. Check and re torque
after the first 10 miles (16 km), 25 miles (40 km),
and again at 50 miles (80 km). Check periodically
thereafter.
WARNING!
Wheel lug nuts must be installed and
kept at the proper torque value to
prevent loose wheels, broken studs,
or possible separation of wheels from
axle.
•
Start all lug nuts onto the threads by hand.
•
Tighten lug nuts in stages, following the pattern
shown in the Wheel Lug Nut Torque table.
•
Hydraulic Fitting Torque
Hex Size
Tube Size
Across
Torque value
OD
Flats
lbf•ft
Inches
Inches
3/16
7/16
6
1/4
9/16
11–12
5/16
5/8
14–16
3/8
11/16
20–22
1/2
7/8
44–48
5/8
1
50–58
3/4
1-1/4
79–88
1
1-5/8
117–125
Wheel Lug Nut Torque
Wheel Size
Units
lbf•ft
8"
N•m
lbf•ft
12"
N•m
lbf•ft
13"
N•m
lbf•ft
14"
N•m
lbf•ft
15"
N•m
lbf•ft
16"
N•m
Wheel Lug Torque Pattern
4-Bolt
5-Bolt
Flats From Finger
Tight
N•m
Flats
8
2
15–17
2
19–22
2
27–30
1-1/4
59–65
1
68–79
1
107–119
1
158–170
1
1st Stage
2nd Stage
12–20
30–35
16–26
39–45.5
20–25
35–40
26–32.5
45.5–52
20–25
35–40
26–32.5
45.5–52
20–25
50–60
26–32.5
65–78
20–25
50–60
26–32.5
65–78
20–25
50–60
26–32.5
65–78
6-Bolt
Turns
1/6
1/6
1/6
1/6
1/6
1/6
1/8
1/8
3rd Stage
45–55
58.5–71.5
50–60
65–78
50–60
65–78
90–120
117–156
90–120
117–156
90–120
117–156
8-Bolt
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