65
10.3 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 tighten
-
ing.
3. Lubricate connection and hand
tighten swivel nut until snug.
4. To prevent twisting the tube(s), use
two wrenches. Place one wrench
on the connector body and with the
second tighten the swivel nut to the
torque shown.
• The torque values shown are based
on lubricated connections as in
reassembly.
Tube Size
OD
Nut Size
Across
Flats
(in.)
(in.)
(N.m)
(lb-ft)
(Flats)
(Turn)
3/16
7/16
8
6
1
1/6
1/4
9/16
12
9
1
1/6
5/16
5/8
16
12
1
1/6
3/8
11/16
24
18
1
1/6
1/2
7/8
46
34
1
1/6
5/8
1
62
46
1
1/6
3/4
1-1/4
102
75
3/4
1/8
7/8
1-3/8
122
90
3/4
1/8
HYDRAULIC FITTING TORQUE
Torque Value*
Recommended
Turns To Tighten
(After Finger
Tightening)
It is extremely important safety proce-
dure 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 16Km
(10 miles), 40Km (25 miles), and again
at 80Km (50 miles). Check periodically
thereafter.
Note: Wheel lugs must be applied and
maintained at the proper torque levels to
prevent loose wheels, broken studs, and
possible dangerous separation of wheels
from your axle.
• Start all lugs by hand to prevent cross
threading.
• Tighten lugs in sequence, per wheel
lug torque sequence chart.
• The tightening of the fasteners should
be done in stages. Following the
recommended sequence, tighten
fasteners per wheel torque require-
ments chart.
10.4 WHEEL LUG TORQUE
Wheel Size
Torque
Unit
1st Stage
2nd Stage
3rd Stage
8"
ft-lbs
Nm
12 - 20
16 - 26
30 - 35
39 - 45.5
45 - 55
58.5 - 71.5
12"
ft-lbs
Nm
20 - 25
26 - 32.5
35 - 40
45.5 - 52
50 - 60
65 - 78
13"
ft-lbs
Nm
20 - 25
26 - 32.5
35 - 40
45.5 - 52
50 - 60
65 - 78
14"
ft-lbs
Nm
20 - 25
26 - 32.5
50 - 60
65 - 78
90 - 120
117 - 156
15"
ft-lbs
Nm
20 - 25
26 - 32.5
50 - 60
65 - 78
90 - 120
117 - 156
16"
ft-lbs
Nm
20 - 25
26 - 32.5
50 - 60
65 - 78
90 - 120
117 - 156
Wheel Torque Requirements
Wheel Lug Torque Sequence
Summary of Contents for Wallenstein CR Series
Page 69: ...69 ...