1985 Mercury Outboard V-300 V-3.4L Shop Service Manual, Page 199Get this manual

1985 Mercury Outboard V-300 V-3.4L Shop Service Manual, Page 199

TROUBLESHOOTING DETERMINING If PROBLEM I, ELECTRICAL

or HYDRAULIC
When problem is ncoun tered with the Power Trim system, th firs step is 10 determine whether the malfunc tion is in the "electrical syste m" or the "hydrau lic system"Refer to the follow ing chari to determine which system is at fault
Trouble Chart
Engine wlll not trim up or down

Engine trims up, will nollrlm down
Determine ;, Power Trim pump motor operales when appro priate trim ci rculi Is activated
Engine trims downwill not trim up

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