Mercury 40 Service Manual page 388

POWER TRIM
Hydraulic System Troubleshooting Flow Chart
Cylinder bore appears
smooth with no debris.
Replace memory pis-
ton and shock piston
O-rings.
Trim system does
not leak down. Test-
ing complete.
Page 5C-26
continued
Inspect memory pis-
ton O-ring and cylinder
bore.
Trim leaks down.
Replace trim system.
Cylinder bore appears
rough and/or debris
found in cylinder.
90-828631R3 MARCH 1999