Chapter 2: Components/Systems 15
37OO SCR Sport Yacht
•
Owner’s Manual Supplement
Engine Cooling System
•
The engine cooling system circulates raw
water around components and also uses a
heat exhanger to reduce engine temperature.
•
Engine coolant (antifreeze) levels should be
checked at the engine-mounted expansion
tanks and at the coolant recovery bottles,
located near the engines.
•
Make sure both engine seawater intake
valves (seacocks) are open before starting
the engines and keep the seacocks open
while the engines are running.
•
The engine cooling system’s seawater strainers (located in the forward bilge) should be checked for leaks and
cleaned every time you use your yacht. For instructions on how to clean the seawater strainers, see the Seawater
Strainer section of this supplement.
Shaft-Transmission Alignment
•
Alignment between the engine transmis-
sion output shaft and the propeller shaft is
critical. This alignment has been per-
formed at the factory, and was rechecked
by the dealer after the boat had been in the
water for 48 hours.
•
An alignment inspection should be per-
formed as part of the routine maintenance
program (after the initial 30 hours of oper-
ation, then every 60 hours) and whenever
an unusual noise or vibration is noticed.
•
To insure proper alignment after a haulout
or dry storage, wait 48 hours after launch-
ing before making final alignment adjust-
ments.
CONNECTS TO
RAW WATER PUMP
INLET ON ENGINES
TYPICAL ENGINE COOLING SYSTEM ROUTING
SEAWATER
STRAINERS
INTAKE STRAINER
HULL
SEACOCK GASKET
SEACOCK
SEACOCK
LEVER
TYPICAL VIEW OF ENGINE SEAWATER INTAKE VALVE
SECTION
CAUTI O N!
SCALDING HAZARD!
Never check coolant levels when the engine
is hot or while the engine is operating.
!
CAUTI O N!
SYSTEM DAMAGE HAZARD!
The engine cooling system’s seacocks must
be opened before engines are started and
remain open during engine operation.
!
SECTION VIEW
OF HULL
CLAMPS
CLAMPS
SHAFT LOG
(TRIANGLE FLANGE)
BELLOWS
SHAFT
ROTOR
FLANGE BOLT (TYPICAL)
POSSIBLE QUANTITY:
CARBON/GRAPHITE
FLANGE
COUPLER
TRANSMISSION
OUTPUT FLANGE
4, 6 OR 8 BOLTS
TYPICAL TRANSMISSION-TO-PROP SHAFT COMPONENTS
TRANSMISSION-TO-PROP SHAFT COMPONENTS VARY,
DEPENDING UPON ENGINE TYPE AND SIZE
CAUTI O N
SYSTEM DAMAGE HAZARD! If a shaft misalignment exists, have a qualified marine
mechanic perform an alignment as soon as possible. Continued use may lead to premature
engine, transmission, shaft, shaft seal and/or hull damage!
!
Summary of Contents for 3700 SCR
Page 1: ......
Page 6: ......
Page 42: ...36 Appendix B Wiring Schematics 37OO SCR Sport Yacht Owner s Manual Supplement Deck Harness...
Page 49: ...Owner s Notes...
Page 50: ...Owner s Notes...
Page 51: ......
Page 52: ...Part Number 1706480 Rev A Maxum Marine P O Box 6050 Arlington WA 98223 6050 360 435 6534...
