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Mercury 45 Jet 50-55 - Ride-Guide Steering Attachment; Extension Couplers; Trim Tab Adjustment; Dual Outboard

Mercury 45 Jet 50-55
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7A-12 - OUTBOARD INSTALLATION/ATTACHMENTS 90-817643R1 DECEMBER 1996
Ride-Guide Steering Attachment
Extension Couplers
Outboard Center Required Coupler(s) Between
Line Distance Steering Eyes (Shown Below)
18 in. thru 22-1/2 in. 9 in. (229mm) Coupler
(457mm thru 572mm) (p/n 814951--1)
22-1/2 in. thru 24-1/2 in. 12 in. (305mm) Coupler
(572mm thru 622mm) (p/n 814951--2)
23-1/2 in. thru 27-1/2 in. 15 in. (381mm) Coupler
(597mm thru 699mm) (p/n 814951--3)
26-1/2 in. thru 30-1/2 in. 18 in. (457mm) Coupler
(673mm thru 755mm) (p/n 814951--4)
a - 18 in. (457mm) Coupler (P/N 814951--4)
b - 15 in. (381mm) Coupler (P/N 814951--3)
c - 12 in. (305mm) Coupler (P/N 814951--2)
d - 9 in. (229mm) Coupler (P/N 814951--1)
Trim Tab Adjustment
DUAL OUTBOARD
1. Check trim tab position as follows:
IMPORTANT: Initial trim tab setting for both outboards
should be straight to rear of outboard, so that tabs are
aligned with gear housing centerline. Refer to “If nec-
essary, adjust trim tab as follows”.
a. Operate boat at normal cruise throttle setting and
adjust trim to optimum setting.
b. If boat pulls to the right (starboard), trailing edge of
trim tab must be moved to the right (when viewing
outboard from behind). If boat pulls to the left
(port), trailing edge of trim tab must be moved to
the left.
2. If necessary, adjust trim tab as follows:
a. Shift outboard into neutral and make sure ignition
key is at “OFF” position.
b. Remove plastic cap from rear of drive shaft hous-
ing and loosen bolt and trim tab.
IMPORTANT: Trim tabs MUST BE set in the same posi-
tion on both outboards.
c. If boat pulls to the right, adjust trailing edges of
both trim tabs to the right. If boat pulls to the left,
adjust trailing edges of both trim tabs to the left.
d. Tighten both trim tab bolts securely and replace
plastic caps.
e. Operate boat following trim tab adjustment. Read-
just trim tab if necessary.
Maintenance Instructions
Maintenance inspection is owner’s responsibility and must
be performed at intervals specified, following:
Normal Service - Every 50 hrs. of operation or 60 days
(whichever comes first)
*Severe Service - Every 25 hrs. of operation or 30 days
(whichever comes first)
*Operation in a salt water area is considered “Sever Service”.
1. Carefully check steering system components for wear.
Replace worn parts.
2. Check steering system fasteners to be sure that they
are torqued to correct specifications.
NOTE: Ride-Guide Steering Cables are lubricated at the
factory and require no additional lubrication at initial instal-
lation.
! WARNING
Core of each steering cable (transom end) must be ful-
ly retracted into cable housing before lubricating
cable. If cable is lubricated while extended, hydraulic
lock of cable could occur.
3. With core of Ride-Guide Steering Cable (transom end)
fully retracted, lubricate transom end of steering
cables thru grease fittings with 2-4-C w/Teflon Marine
Lubricant. Lubricate exposed portion of cable ends
with 2-4-C w/Teflon Marine Lubricant.
4. Lubricate pivot points of steering link rods and ball
joints of link rods/steering coupler with Quicksilver
2-4-C w/Teflon Lubricant.
5. Inspection and lubrication of steering head assembly
(rotary or straight rack) should be performed once
each year (by your Authorized Dealer) or whenever
steering mount and/or steering head are disas-
sembled, or if steering effort has increased. Lubricate
with 2-4-C w/Teflon Marine Lubricant.

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