4) Each contact surface should be coated with an
adhesive (THREE BOND TB 1215) and tightened
evenly with bolts. Adhesive coated surfaces should
be installed within 30 minutes after application of
the adhesive. The contact surfaces should be flawless
and free from foreign matter, and especially from
grease before application of the adhesive.
2-3
Bolt Tightening Torque (kgf.m)
Spec
4T 7T (8.8) 9T (10.9)
Coarse Fine Coarse Fine Coarse Fine
M3 0.07~0.09 - - - - -
M5
0.35~0.45 - 0.5~0.7 - - -
M6 0.50~0.70 - 1.1~1.4 - 1.25~1.45 -
M8 1.3~1.7 - 2.3~3.0 - 3.0~3.5 -
M10 2.5~3.5 2.0~2.8 4.5~6.0 3.6~4.8 6.5~7.2 5.2~5.76
M12 4.5~6.0 3.6~4.8 8.0~10 6.4~8.0 10.5~12 8.4~9.6
M14 7.0~8.5 5.6~6.8 12~15 9.2~12 17~20 13.6~16.0
M16 11~14 8.8~11.2 17~21 13.6~16.8 20.5~31 16.4~24.8
M18 16~19 12.8~15.2 24~29 19.2~23.2 35~41 28~32.8
M20 22~27 17.6~21.6 33~41 25.4~32.8 50~58 40~46.4
* In case of nut torque, 80% torque of above table respectively
Air-conditioner (kgf.m)
R-12 (R-134a) Pipe Diam.
Without
O-ring
With O-
ring
7/16-20UNF ( - ) 1/4”,D6 1-1.5 -
9/16-18UNF (M16xP1.5) 5/6”,D8 2-3 1-2
5/8-18UNF (M18xP1.5) 3/8”,D9.52 2-3 1-2
3/4-16UNF (M20xP1.5) 1/2”, D12.7 3-4 1.5-2.5
7/8-14UNF (M22xP1.5) 5/8”,D15.8 4-5 2-3
11/16-14UNF ( - ) 3/4”,D18.9 5-6 2.5-3.5
11/14-12UNF ( - ) 7/8”,D22.2 6-7.5 3-4
Coupling-Hydraulic (Kgf-m)
¼” 2.5
3/8” 5
½” 6
¾” 12
1” 14
1-1/4” 17
1-1/2” 21
5) Precautions for applying adhesives.
The surface or the thread where and adhesive
is to applied should be completely free of chips.
The surface or the thread where an adhesive is
to be applied should be completely free of oil-
less.
Nut-Bearing (kgf.m) (Calking Nut only)
A N 0 2 AN03 AN04 AN05 AN06 AN07 A N 0 8 AN09 AN10 AN11 A N 1 2
M 1 5 M 1 7 M 2 0 M 2 5 M 3 0 M 3 5 M 4 0 M 4 5 M 5 0 M 5 5 M 6 0
2 - 4 2 - 4 3 - 5 3 - 5 3 - 5 6 - 8 6 - 8 6 - 8 8 - 1 0 8 - 1 0 8 - 1 0
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