UPRENT Betsy 125H User Manual page 26

14. Regulate engine speed with throttle (4), to necessary speed
WARNING
If vibration occurs during starting, stop the pump immediately and eliminate the cause
before starting again.
WARNING
If the pump vacuum lift is set too high, cavitation in the pump set is possible and this can be
recognized by High levels of vibration, a crackling noise in the pump, decreased capacity
and pressure. If this condition is allowed to persist for long periods it will cause damage the
pump set. Continued running of the pump set in this condition will invalidate the warranty.
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