43
Flare Fitting Tightening Torque
Wrench Size
Tubeline Outside
Diameter
Thread Size
TORQUE N·m (ft-
lb)
NEW Rotate No.
of Hex Flats
RE-ASSEMBLY
Rotate No. of Hex
Flats
5/8”
5/16”
1/2” – 20
23 (17)
2 - 1/2
1
11/16”
3/8”
9/16” – 18
30 (22)
2
1
7/8”
1/2”
3/4” – 16
54 (40)
2
1
1”
5/8”
7/8” – 14
81 (60)
1 - 1/2
1
1 - 1/4”
3/4”
1 - 1/16” – 12
114 (84)
1
3/4
1 - 3/8”
1”
1 - 5/16” – 12
160 (118)
3/4
3/4
O-ring Flare Fitting
Figure 64
P13009a
The flare (Item 1) is the primary seal, the O-ring (Item 2)
is the secondary seal and helps absorb vibration and
pressure pulses at the connection [Figure 64].
If necessary, the O-ring flare fitting can be used without
an O-ring.
Use the following procedure to tighten the O-ring flare
fitting.
Figure 65
TS1619
Tighten the nut until it contacts with seat. Make a mark
across the flats of both the male and female parts of the
connection (Item 1) [Figure 65].
Use the chart below to find the correct tightness needed
(Item 2) [Figure 65]. If the fitting leaks after tightening,
disconnect it and inspect the seat area for damage.
Summary of Contents for Auger 75 DDH
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Page 12: ...10 Figure 4 C221899a SAFETY AND TRAINING RESOURCES ...
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Page 52: ...50 troubleshooting 29 W warranty 48 welding safety 7 ALPHABETICAL INDEX ...
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