Mercury XR2 Installationshandbuch PDF herunterladen (Seite 15)

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10. Seal the thru-hull fitting to prevent any water

leaks.

a - Steering Cable Thru-Hull Fitting

Bilge Siphon Feature

The Jet Drive incorporates an automatic bilge siphon-

ing feature. The bilge siphon is working whenever the

engine is running above idle speeds. Maximum per-

formance of the bilge siphon is realized above 3,000

RPM. A hose is attached to the jet pump nozzle. The

hose is routed to the engine compartment and placed

in the bilge. Water exiting the nozzle creates a suction

or vacuum in the hose creating the bilge siphon,

drawing water out of the boat.

Installing Bilge Siphon

Uncoil siphon hose from clamp on exhaust manifold.

Hose should remain attached to clamp on manifold.

Loop siphon hose over clamp on exhaust manifold.

Place siphon hose in bilge.

28237

b - Siphon Break

c - Manifold Clamp

d - Pick Up Screen

The siphon break must be located above the water

line. The siphon break has a .020 in. hole which must

be kept open.

WARNING

Failure to locate siphon break above the water

line and keep hole open could result in water en-

tering the bilge through the siphon system caus-

ing property damage, personal injury or death.

Water By-Pass System

The water by-pass system is designed to improve

powerhead cooling at idle speed.

1. Locate the water by-pass components (pro-

vided).

a - Thru-Hull Fitting

b - Brass Nut

c - Hose Clamp

IMPORTANT: The thru-hull fitting must be cor-

rectly positioned in the boat transom as

instructed in Step 3.

2. Cut the cable tie and uncoil the water by-pass

hose.

a - Water By-Pass Hose

3. Select the mounting location for the thru-hull fit-

ting as follows:

2 in. (50 mm)

Minimum

Top View of

Transom

Back View

of Transom

• The thru-hull fitting must be mounted in either

side of the transom within the zones marked A.

• The thru-hull fitting must be located a Minimum of

50 mm (2 in.) above the water line when boat is

at its maximum load.

• The water by-pass hose must slope down to-

wards the thru-hull fitting at a minimum rate of

25 mm (1 in.) drop per 12 inches (300 mm) of

hose.

• The thru-hull fitting should be positioned so the

water spray will be pointed downward.

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