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Appendix
Standard tightening torques
Screws reuse
Information
Except components listed below, and otherwise noted,
u Reuse screws as many times as no visible damage appears (thread, coating).
u Replace screws with the same quality class as soon as damage appears (thread, coating).
For screws on:
– Main bearing
– Connecting rod
– Cylinder head
– Damper
– Flywheel
– Camshaft
– Trunnion mount
– Engine feet DE and FE
– Exhaust screws with copper coating
u Replace screws after each dismounting.
Counterweight:
u Untightening screws is forbidden.
Screw plugs:
u Replace screw plugs after each dismounting.
On fuel and HP injections pipes:
u Replace connections after first dismouting.
u Change connections after 3 tightenings.
For cutting rings:
u Replace connections after first dismouting.
u Change connections after 3 tightenings.
Screws marking
Information
Except components listed below, and otherwise noted,
u Marking on screws or nuts to track their reuse is not required.
Fig. 121: Examples of markings on screws and HP pipe nut
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© 2023 by Kohler Co. All rights reserved.
KD62V12A 33521061401_1_1 EN_US
2023-10
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