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H21/32
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Engine Maintenance General
Screw Tightening and Torques
엔진
정비
일반사항
볼트
체결력
및
토크
Section No.
G09400
Rev.
1D
HYUNDAI HEAVY INDUSTRIES CO., LTD
.
Engine & Machinery Division 07.07/CJC
Description
Size
Method
(Spanner/
Wrench)
Tightening
Torque
( Nm )
Related
Section
Item
No.
Remarks
Bolt for C.W pump impeller
(Left hand)
M12x1.75
19
120 Nm
A71000 226
+ Loctite 242
Bolt for exhaust pipe
M12x1.75
19
80 Nm
A82000 901
+ MH
M24x3.0
36
780 Nm
M20x2.5
30
455 Nm
Bolt for T/C support
M16x2.0
24
230 Nm
A83000 901
Tightening Torque (Nm)
Description
Size
Method
(Spanner/
Wrench
No lubricant
Anti-seizure lubricant
or loctite
Remarks
M6x1.0
10
10 Nm
7 Nm
M8x1.25
13
25 Nm
20 Nm
M10x1.5
17
50 Nm
40 Nm
M12x1.75
19
80 Nm
70 Nm
M14x2.0
21
120 Nm
110 Nm
M16x2.0
24
200 Nm
170 Nm
M18x2.5
27
280 Nm
240 Nm
M20x2.5
30
400 Nm
340 Nm
General bolts and nuts
(Strength grade 8.8)
M22x2.5
32
550 Nm
450 Nm
M6x1.0
10
14 Nm
10 Nm
M8x1.25
13
35 Nm
25 Nm
M10x1.5
17
70 Nm
50 Nm
M12x1.75
19
120 Nm
85 Nm
M14x2.0
21
190 Nm
130 Nm
M16x2.0
24
280 Nm
200 Nm
M18x2.5
27
390 Nm
280 Nm
M20x2.5
30
560 Nm
380 Nm
M22x2.5
32
800 Nm
700 Nm
General bolts and nuts
(Strength grade 10.9)
M24x3.0
36
1000 Nm
900 Nm
Notes )
1. Thread of nuts/bolts are to be greased with specified anti-seizure agent by the + marked
before tightening-up where stated.
2. High temperature parts should be tightened with anti-seizure agent for the high temperature.
+ Molycote : lubricating paste up to 400
(Ex. GLEITMO 100)
℃
+ MH : high-temperature lubricating up to 1100 ~ 1150
(Ex. Molycote 1000 or COPASLIP)
℃
( Coefficient of friction : 0.12 )
3. The bolts and nuts should be tightened in a diagonally alternating sequence.
4. General bolts and nuts are generally tightened without anti-seizure agent.