Operating Your Engine; Inspection Before Starting - Yanmar 3JH3(8)E Operation Manual

3. Operation
3.3 Operating your engine
A
WARNING
To prevent exhaust gas poisoning, ensure
good ventilation during operation. Install
ventilation windows, ports or ventilators in
the engine room.
Never touch or allow your clothes to touch
the moving parts of the engine during
operation. If the front drive shaft, V-belt,
propeller shaft, etc. catches your body or
clothes, serious injury may result. Check
that no tools, cloth, etc. are left on or
around the engine.
A
CAUTION
The engine is very hot during operation
and immediately after stopping, especially
the exhaust manifold and the exhaust
pipe. Avoid burns! Never touch or allow
your clothes to touch any part of the
engine.
3.3.1 Inspection Before Starting
Before starting the engine, make it a daily
rule to conduct the following inspections:
(1) Visual Checks
Check for the following:
1. Lube oil leakage from the engine
2. Fuel oil leakage from the fuel system
3. Water leakage from the cooling water
system
4. Damage to parts
5. Loosening or loss of bolts
If any problem is found, do not operate the
engine before completing repairs.
(2) Checking and Resupplying Fuel Oil
Check the fuel level inside the fuel tank
and supply with the recommended fuel, if
necessary. (See 3.2.1)
(3) Checking and Resupplying Engine
Lube Oil
1. Check the engine oil level with the oil
dipstick.
2. If the oil level is low, supply with the
recommended lube oil using the filler
port. Supply oil up to the top mark on
the oil dipstick. (See 3.2.2)
(4) Checking and Resupplying Clutch
Lube Oil
1. Check the clutch oil level with the oil
dipstick.
2. If the oil level is low, supply with the
recommended lube oil using the filler
port. Supply oil up to the top mark on
the oil dipstick. (See 3.2.3)
(5) Checking and Resupplying Fresh
Water (For Fresh Water Cooling
System)
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
~
reading will be misleading due to thermal
IiiI
expansion.
Check and supply cooling water routinely
at the subtank only.
Do not remove the filler cap of the fresh
water tank during usual operation.
A
DANGER
Do not open the filler cap during operation
or immediately after stopping the engine.
Hot steam and water will spout out. To
remove the cap, wait until the engine has
cooled down, wrap the cap with a cloth
and loosen the cap slowly. After checking,
replace the cap and tighten firmly.
1. Check that the cooling fresh water level
is above the lower limit on the side of
the subtank.
2. If the water level is close to the lower
limit, remove the subtank cap and
supply fresh water.
3. When the water in the subtank runs out,
remove the filler cap of the fresh water
cooler and supply water until it over-
flows from the filler port. (See 3.2.4)
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