Down" Pressure Check - Mercury 150 EFI Service Manual

POWER TRIM

"DOWN" Pressure Check

IMPORTANT: Insure battery is fully charged before performing tests.
1. Tilt outboard to full "Up" position and engage tilt lock lever.
2. Slowly remove "Fill" plug to bleed pressure from reservoir.
3. Remove circlip securing manual release valve and unscrew release valve from trim
assembly.
NOTE: A small amount of trim fluid may drip from manual release valve hole. Place a suit-
able container under trim assembly to collect any leakage.
NOTE: Assemble test adaptor by using O-ring installation tool to position small O-ring
onto adaptor 1st, then install medium O-ring and lastly large O-ring. Thread brass fitting
into test adaptor securely using teflon tape on threads.
a -
b -
c -
d -
e -
g -
4. Install test adaptor 91-822778A3 into manual release valve hole.
a -
Page 5B-26
g
a
f
Test Adaptor (91-822778A3)
O-ring Installation Tool
Small O-ring (Install 1st)
Medium O-ring (Install 2nd)
Large O-ring (Install Last)
f - Brass Fitting
Apply Teflon Tape
Test Adaptor (91-822778A3)
3
e d c
b
a a
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90-883728 JULY 2001