1985 OMC 65, 100 and 155 HP Models Commercial Service Manual, PN 507450-D, Page 430Get this manual
RUNNING FORWARD
TRIMTILT IN
POWER TRIM AND TILT HYDRAULIC DIAGRAM 100 AND 155 MODELS
Reservoir
RUNNING IN REVERSE
TRIMTILT OUT
Pump Control Piston
l etdown Control Piston