Yanmar 1GM10 Operation Manual page 58

PERIODIC MAINTENANCE
System
Whole Visually inspecting the engine exterior
Inspecting the fuel level
Draining the fuel tank
Draining the fuel filter / water separator
Fuel System*
Replacing the fuel filter element
Inspecting the fuel injection timing
Inspecting the fuel injection nozzle
spray pattern
Inspecting the oil level
Lubricating
Changing the oil
System
Inspecting the function of the oil
pressure warning lamp
Replacing the engine oil filter element
Inspecting the seawater outlet
Cooling
Inspecting the seawater pump impeller
System
Inspecting the zinc anode
Cleaning the intake silencer (air filter)
Cleaning the exhaust / water mixing
Air Intake and
elbow
Exhaust
Cleaning the breather pipe
System
Inspecting the exhaust gas condition
Inspecting the function of the battery
charge warning lamp
Inspecting the battery electrolyte level
Electrical
System
Checking and adjusting the alternator
V-belt tension
Checking the wiring connectors
Inspecting for fuel, oil or engine leaks
Engine
Cylinder Head Tightening all major nuts and bolts
and Block
Adjusting the intake / exhaust valve
clearances
Inspecting and adjusting the throttle
Miscellaneous
and shift control cables
Items
Adjusting the propeller shaft alignment
Note: These procedures are considered normal maintenance and are performed at the
owner's expense.
52

: Check or Clean ✧: Replace ●: Contact your authorized Yanmar Marine dealer or distributor
Item
Engine
Marine
Gear
Engine
Marine
Gear
Periodic Maintenance Interval
Before
Starting See Initial Every
Daily 50
Checks on Hours Hours
page 35.
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✧
✧
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During
Operation
✧
During
Operation

During
Operation




After
Starting
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

GM Series Operation Manual
Every
Every
250
50 150
Hours or
Hours
1 Year

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✧
●
✧
✧
✧

✧






●
●
Every 1000
Hours or 4
Years
●
✧
✧
●
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