Hurth Transmissions - Westerbeke 80N4 Operator's Manual

HURTH TRANSMISSIONS
SHIPMENT
For safety reasons, the transmission is
not
filled with trans-
mission fluid during shipment and the selector lever is tem-
porarily attached to the actuating shaft.
Before leaving the WESTERBEKE plant, each transmission
undergoes a test run, with Dextron III ATF transmission fluid.
The residual fluid remaining in the transmission after drain-
ing acts as a preservative and provides protection against cor-
rosion for at least one year if properly stored.
DIPSTICK
~;;iJ#N~k--AIR
VENT
~~IJt,
........
~.JJ--
FLUID
\l:I....e3IN
FIlTER
OUTPUT
COUPLING - -.....
MODEL 630
OIL COOLER
The oil cooler, mounted above the transmission, provides
continuous cooling for the transmission fluid. Raw water
passes through the tubes of the cooler and discharges over-
board. The transmission fluid is cooled as it flows around the
tubes and back into the transmission.
WESTERBEKE RECOMMENDS CARRYING
A SPARE OIL COOLER ABOARD
RAW WATER
CONNECTION
TRANSMISSION OIL COOLER
TRANSMISSION FLUID
RAW WATER
CONNECTION
Fill the transmission with Dextron l/l ATF. The fluid level
should be up to the mark on the dipstick. After checking the
level, press the dipstick into the case and turn it to tighten.
During the first 25 operating hours, inspect the bell housing,
output shaft and transmission cooler for leakage. The fluid
should be changed after the first 25 hours and every 300
hours thereafter.
NEUTRAL SWITCH
These transmissions are equipped with a neutral safety
switch. This is to prevent the engine fr<,Jrn starting in gear.
Unless the transmission selector lever is perfectly aligned in
neutral, the engine starter will not activate.
INITIAL OPERATION
Set the shifting lever to neutral position (N). Start the engine
and let it run long enough in idle to fill the cooler and hoses
with transmission fluid. Shift into gear, forward and reverse;
shifting should be smooth and positive. Direct changes from
forward to reverse are permissible since the mUltiple disc·
clutch permits changing at high rpm including sudden revers-
ing at high speeds in the event of danger.
After initial operation, make a visual inspection of the output
coupling, oil cooler and hoses, and the cable connections to
the transmission.
LOCKING THE PROPELLER
Locking of the propeller shaft by an additional brake is not
required: use the gear shift lever position opposite your direc-
tion of travel for this purpose. Never put the gear shift in the
position corresponding to the direction of travel of the boat.
WHEN UNDER SAIL OR BEING TOWED
Rotation of the propeller without a load, such as when the
boat is being sailed, being towed or anchored in a river, as
well as operation of the engine with the propeller stopped
(for charging the battery), will have no detrimental effects on
the transmission.
NOTE:
When the boat is being sailed (engine stopped), the
gear shift must be in the neutral position. The propeller is at
idle
and
can free-wheel.
DAILY OPERATION
o
Check the transmission fluid.
o
Visually check the gear shift linkage and transmission.
o
Start the engine in neutral, allowing a few minutes at idle
to warm the fluid.
o
Shift into gear.
NOTE:
Too Iowan idle speed will produce a chattering noise
from the transmission gear
and
damper plate. In such cases
the idle speed should be increased.
Operating Temperature
The operating temperature of the transmission should not
exceed 176°F (80°C) under normal continous running. A
connection for a temperature probe is provided. At maximum
output of the engine, the fluid may reach 220°F (l04°C).
A
CAUTION:
If the transmission fluid temperature is
too high, stop the engine immediately and check the
transmission fluid.
Engines & Generators
36