MMD Equipment 25S-3A3 - Manual (Page 41)

5. Operation
5-11
5.5 Adjustment of frequency
When it is necessary to adjust frequency during operation, take the following steps.
(Procedure)
① Loosen the locknut of the engine governor adjusting bolt.
② Watching the frequency meter, adjust the frequency to the value mentioned in 5.2.2 by
turning the adjusting bolt. Turning & screwing in the adjusting bolt to right increases
frequency. On the other hand, loosening to the left lowers frequency.
③ After this adjustment is finished, be sure to tighten the lock-nut securely so that the nut
can be fixed not to get loose during operation.
A010136
SDG75/100S