Specifications

36
4. MAINTENANCE AND INSPECTION
EN
4. MAINTENANCE AND INSPECTION
4.1 General Inspection Rules
(1) Conduct Periodic Inspection for
Your Safety.
The functions of engine components
will degenerate and engine perfor-
mance will drop according to the use
of the engine. If countermeasures are
not taken, you may encounter unex-
pected troubles while cruising at sea.
Consumption of fuel or lubricating oil
may become excessive and exhaust
gas and engine noise may increase.
These all shorten the life of the engine.
Daily and periodic inspection and ser-
vicing increase your safety at sea.
(2) Inspect Before Starting.
Make it a daily rule to inspect before
starting. (See 3.3.1)
(3) Periodic Inspections at Fixed Inter-
vals
Periodic inspections must be made af-
ter every 50, 100, 150, 250 and 1000
hours of use.
Conduct periodic inspections accord-
ing to the procedures described in this
Operation Manual.
(4) Use Genuine Yanmar Parts.
Be sure to use genuine Yanmar parts
for consumable and replacement
parts. Use of other parts will reduce
engine performance and shorten the
life of the engine.
(5) Consult Your YANMAR Dealer or
Distributor.
Specialized technicians are ready to
assist you with periodic inspections
and maintenance. Consult your YAN-
MAR dealer or distributor in accor-
dance with the service agreement.
(6) Servicing Tools
Prepare servicing tools onboard to be
ready for inspecting and servicing the
engine and other equipment.
(7) Tightening Torque of Bolts & Nuts
Over-tightening of bolts and nuts
causes them to come off or their
threads to be damaged. Insufficient
tightening causes oil leakage from the
installation face or troubles due to the
loosening of bolts.
Bolts and nuts must be tightened to
the appropriate tightening torque. Im-
portant parts must be tightened with a
torque wrench to the correct tightening
torque and in the right order. Consult
with your dealer or distributor if the
servicing requires the removal of such
parts.
The standard tightening torque for
standard bolts & nuts is listed below.