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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
OD
Flats
lbf•ft
Inches
Inches
3/16
7/16
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
Values shown are for non-lubricated connections.
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
Torque value
N•m
Flats
6
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
Tight
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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