Specifications

36 5. MAINTENANCE & INSPECTION
5.1 List of Periodic Inspections
Daily and periodic inspection are important to keep the engine in its best condition. The following is a sum-
mary of inspection and servicing items by inspection interval. Periodic inspection intervals vary depending on
the uses, loads, fuels and lube oils used and handling conditions, and are hard to establish definitively. The
following should be treated only as a general standard. Schedule your own periodic inspection plan according
to the operational conditions of your engine and inspect every item. Neglecting periodic inspection leads to
engine troubles and shortens the life of the engine.
O:Check 0:Replace :Consult local dealer
Item Content Daily
Interval term
Every
50hrs
Every
250hrs
(1 yr.)
Every
500hrs
(2 yrs.)
Every
1,000hrs
(4 yrs.)
Fuel oil
Check & supply of oil to the tank
O
Drain the fuel tank
O
Drain the fuel filter
O
Replace the fuel filter element
0
Engine
Lube oil
Check the quantity of lube oil
O
Replace the lube oil 1st time
0
2nd time & after
0
Replace the lube oil filter element 1st time
0
2nd time & after
0
Clean the engine oil cooler

Marine gear
Lube oil
Check the quantity of lube oil
O
Replace the lube oil 1st time
0
2nd time
0
3nd time & after
0
Wash the lube oil filter 1st time
O
2nd time
O
3nd time & after
Ο
Clean the oil cooler

Fresh
cooling
water
system
Check & supply of cooling water tank
O
Replace the fresh cooling water
0
Clean & check the cooling water passage 
Seawater
cooling
water
system
Check the seawater outlet and discharge O
Check & replace the impeller of seawater pump 
Clean & check the seawater passage

Piping
Check & replace fuel oil pipe, cooling water pipe O 
Replace mixing elbow.
O 
Electrical
equipment
Check the alarm lamps & devices
O
Check & supply electrolyte in battery
O
Belt Adjusting the V-belt tension
O
Remote
control
handle
Check the remote control operation & grease
O
Adjusting the remote control cable
O
Intake and
exhaust
system
Wash turbocharger blower
O
Adjust the intake and exhaust valve clearance 
Lapping the intake and exhaust valve

Fuel
injection
Check & adjust the fuel injection pressure &
atomizing condition

Check & adjust the fuel injection timing 