Appendix
Service and Repair Manual
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 damage appears (thread, coating).
For screws on:
–
Main bearing
–
Connecting rod
–
Cylinder head
–
Damper
–
Flywheel
–
Camshaft
–
Trunnion mount
–
Engine feets CS and CCS
–
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. 331: Examples of markings on screws and HP pipe nut.
276
© 2021 by Kohler Co. All rights reserved.
KD83V16 33525088901_2_1 EN_US
2021-07
