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ar0130b580001d
Tightening procedure for cylinder head bolts
Type ar · emne 01.30 · version 0202 · 2017-05-11
Gælder for: Engine 457.9 in model 382.15, 634.0 Engine 457.9 in model 693, 696, 958.4 Engine 457.9 in model 695 Engine 457.9 in model 934.241/251 Engine 460.984 in model 934.241/251 Engine 460.984 in model 938.142
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Placering
Funktionsgruppe 1 Motor › 01 Motor komplet, motorudluftning, topstykke, motorblok › 01.30 Topstykke — Serie 382 (modeller 15*) · Serie 460 (modeller 984) · Serie 634 (modeller 0**) · Serie 693 · Serie 695 · Serie 696 · Serie 934 (modeller 241, 251) · Serie 938 (modeller 142) · Serie 958 (modeller 4**)
EinPAS 15 Motor › 15.16 Topstykke › 15.16.31 Topstykke/toppakning — Serie 382 (modeller 15*) · Serie 460 (modeller 984) · Serie 634 (modeller 0**) · Serie 693 · Serie 695 · Serie 696 · Serie 934 (modeller 241, 251) · Serie 938 (modeller 142) · Serie 958 (modeller 4**)
Gælder også for motorer/gearkasser: 457 9**
AR01.30-B-5800-01D
Tightening procedure for cylinder head bolts
Engine 457.9, 460.9
Engine
457.9 in model 382.15, 634.0
Engine
457.9 in model 693, 696, 958.4
Engine
457.9 in model 695
Engine
457.9 in model 934.241/251
Engine
460.984 in model 934.241/251
Engine
460.984 in model 938.142
Cylinder head bolts checking values
Number
Designation
Engine 457.9, 460.984
BE01.30-B-1001-01C
Cylinder head bolts
Thread diameter
mm
15x2
length (L), new bolt
mm
209,5...210,0
length (L), max. used bolt
mm
212
Number
Designation
Engine 457.9, 460.984
BA01.30-B-1001-01B
Cylinder head bolt (used bolts)
Tighten
1st stage
Nm
10
2nd stage
Nm
50
3rd stage
Nm
100
4th stage
Nm
200
5th stage
Graus
90...100
6th stage
Graus
90...100
Number
Designation
Engine 457.9, 460.984
BA01.30-B-1002-01B
Cylinder head bolts (new bolts)
Tighten
1st stage
Nm
10
2nd stage
Nm
50
3rd stage
Nm
100
4th stage
Nm
200
5th stage
Graus
90...100
6th stage
Graus
90...100
Loosen
7th stage
Graus
90
Tighten
8th stage
Graus
90...100
9th stage
Graus
90...100
1
Tighten the screws of the head with the socket.
2
Note the tightening sequence indicated in the figure and apply the torque values valid for used or new screws.
3
If the screw tightening torque is exceeded, remove it, check the maximum allowable length (replace if necessary), and tighten it from the 1st step.
4
Do not mix used and new screws on the same head, use four used screws or four new screws.
5
Replacing the screws whose length exceeds the maximum allowable value is mandatory.
Do not retighten the screws on the cylinder head.
