11.4 Wheel Lug Nut Torque
CAUTION!
Loose wheel lug nuts can result in broken
studs, risking the wheel coming off the
axle hub. Keep lug nuts torqued to proper
specification.
Maintaining proper wheel lug torque on your trailer axle
is an extremely important safety measure. Always use a
properly calibrated torque wrench.
Torque wheel lug nuts before first road use and after each
wheel removal. Check and re-torque after the first 10 mi
(16 km), 25 mi (40 km), and again at 50 mi (80 km).
Check periodically thereafter.
•
Start all lugs by hand to prevent cross threading.
•
Tighten lug nuts following the Wheel Lug Torque
Pattern. Tighten each set of lug nuts in stages, as
shown.
Wheel Lug Nut Torque
Wheel
Size
Units
1st Stage 2nd Stage 3rd Stage
8"
lbf•ft
N•m
12–20
16–26
30–35
39–45.5
45–55
58.5–71.5
12"
lbf•ft
N•m
20–25
26–32.5
35–40
45.5–52
50–60
65–78
13"
lbf•ft
N•m
20–25
26–32.5
35–40
45.5–52
50–60
65–78
14"
lbf•ft
N•m
20–25
26–32.5
50–60
65–78
90–120
117–156
15"
lbf•ft
N•m
20–25
26–32.5
50–60
65–78
90–120
117–156
16"
lbf•ft
N•m
20–25
26–32.5
50–60
65–78
90–120
117–156
4-Bolt
Wheel Lug Torque Pattern
5-Bolt
6-Bolt
8-Bolt
11.3 Hydraulic Fitting Torque
Tightening Flare Type Tube Fittings
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.
Hydraulic Fitting Torque
Tube
Size
OD
Hex
Size
Across
Flats
Torque value
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
Values shown are for non-lubricated connections.
Specifications
WP845 / WP875
Trailer Firewood Processor
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