13.1 O-Lok
®
assembly instructions
Tube selection
Steel tube
cold drawn
seamless
NF A 49330
ISO 3304 R
DIN 2391C pt1
welded and drawn
NF A 49331
DIN2393
BS 3602/2
Tube preparation
• Calculate the tube length before
cutting
• Add extra length “L” (see table
below)
• Observe minimum
length L
1
for straight
tube pieces (see table
below)
• Cut off tube at a right
angle
• Max. ±1° deviation
Do not use tube cutters
• EO cutting tool (AV) for
cutting to size manually
• Deburr the tube
externally and internally
• Chamfer max. 0.3 mm x
45°
• Recommendation:
Manual deburring tool
model 226A
Contaminants may result
in wear and tear or failure
of the tools
Tube preparation overview
Tube Ø
Wall thickness
up to bend L1 (mm)
1.5
2
2.5
3
6
8
10
12
16
20
1.0 - 1.5
1.0 - 2.0
1.0 - 2.0
1.0 - 2.5
1.5 - 3.0
2.0 - 3.5
50
50
50
50
50
65
5.0
2.5
3.5
5.0
4.0
4.5
3.0
3.5
4.5
3.0
4.0
3.0
2.5
Minimum straight length
up to bend L1 (mm)
0.028
0.035
0.049
”
”
0.083
”
0.095
”
0.109
0.120
1/4 0.020 - 0.065 40 4.5
Select appropriate
materials