Yanmar 1GM10V Dokumentacja Pobierz pdf (Strona 27)

4. Maintenance & Inspection

4. MAINTENANCE & INSPECTION

4.1 General Inspection Rules

Conduct Periodic Inspection for Your

Safety.

The functions of engine components will

degenerate and engine performance will

drop according to the use of the engine. If

countermeasures are not taken, you may

encounter unexpected troubles while

cruising at sea. Consumption of fuel or

lube 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

servicing increase your safety at sea.

Inspect Before Starting.

Make it a daily rule to inspect before

starting. (See 3.3.1)

Periodic Inspections at Fixed Intervals.

Periodic inspections must be made after

every 50, 150, 300 and 600 hours of use.

Conduct periodic inspections according to

the procedures described in this

Operation Manual.

Use Genuine Parts.

Be sure to use genuine parts for

consumable and replacement parts. Use

of other parts will reduce engine

performance and shorten the life of the

engine.

Consult Your YANMAR Dealer or

Distributor.

Specialized technicians are ready to

assist you with periodic inspections and

maintenance. Consult your YANMAR

dealer or distributor in accordance with

the service agreement.

Servicing Tools

Prepare servicing tools onboard to be

ready for inspecting and servicing the

engine and other equipment.

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. Important

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.

Apply the following tightening torque to bolts having “7“ on the head. (JIS strength

classification: 7T)

Tighten bolts with no “7“ mark to 60% tightening torque.

If the parts to be tightened are made from light alloy aluminum, tighten the bolts to 80%

tightening torque.

Bolt dia. × pitch mm M6×1.0 M8×1.25 M10×1.5 M12×1.75 M14×1.5 M16×1.5

Tightening torque Nm 11±01 26±03 50±05 90±10 140±15 230±20

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