Yanmar 4LHA-STP User Manual

(4) Checking and Resupplying Marine drive Oil
©Refer to the instructions accompanying the marine drive for the amount of iube oil.
©Supply with the recommended oil if necessary.
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(5) Checking and Resupplying Cooling Water
A DANGER
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Burns from Scalding
•Never remove the filler cap of the fresh water cooler while the engine
Steam and hot water will spurt out and seriously burn you. Wait until
the water temperature has dropped, then wrap a cloth around the cap
and loosen it slowly.
•After inspection, refasten the filler cap firmly. If the cap is not secure,
steam or scalding water may be emitted during operation causing
©Check the cooling water level in the subtank.
If the water level is close to the lower limit, remove the subtank cap and fill with fresh water to
the upper limit.
©When the water level in the subtank is low, remove the filler cap for the fresh water tank and
• check the amount of cooling water in the fresh water tank. Fill with fresh water the
fresh water tank, if the level is low. — See 3.5
• Check the fresh water level before operation while the engine is cold.
Checking the water level while the engine is hot is dangerous, and the cooling water level
reading will be misleading due to thermal expansion.
• Check the cooling water daily at the subtank and supply ifnecessary.
Do not remove the fresh water tank filler cap regularly.
• The amount of water in tne subtank wiii increase auring operation. This is normal.
When the engine is stopped, the temperature of the cooling water will drop causing the
extra water in the subtank to return to the fresh water tank.
riNOTICE]
If the cooling water runs out too often, or if the water level in the fresh water tank falls
without any change in the subtank water level, there may be some leakage of water or
air. In such cases, consult your Yanmar dealer or distributor without delay.
(6) Checking the Remote Control Handle
Be sure to check that the remote control handle lever moves smoothly before use. If it is hard
to operate, lubricate the joints of the remote control cable and also the lever bearings. If the
lever comes out or there is play in the lever, adjust the remote control cable. -* See 5.2.3(5)
(7) Preparing Reserves of Fuel, Lube Oil, and Cooling Water
Have sufficient fuel ready for the day's operation. In addition, have a reserve of fuel, lube oil, and
I cooling water (sufficient for at least one refill).
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Yanmar 4LHA-STP Specifications

General

Number of Cylinders	4
Fuel System	Direct Injection
Engine Type	4-Stroke Vertical Water-Cooled Diesel Engine
Displacement	3.455 L
Bore x Stroke	100 mm x 110 mm
Aspiration	Turbocharged