Conduct Periodic Inspection for Your Safety.
The functions of engine components will degenerate
and engine performance will fall according to the use
of the engine. If countermeasures are not taken, you
may encounter unexpected trouble 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 4.1 ‘Inspection Before Starting’
Monitor the hour meter and conduct
periodic inspections.
Keep a daily record of operation and maintenance.
When the time for an inspection approaches, study the
relevant pages in the Operation Manual. Inspections
should be made after every 50 hrs., 250 hrs. (1 yr.),
500 hrs.(2 yrs.), 1000hrs.(4 yrs.) of use.
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.
Specialty technicians are ready to assist you with
periodic inspections and maintenance. Consult your
Yanmar dealer or distributor in accordance with the
service agreement.
Always Have Servicing Tools On Hand.
Keep servicing tools close to the machinery and ready
for use in inspections.
Tightening Torque of Bolts & Nuts
It is important to tighten bolts and nuts properly to the
correct tightening torque. Over-tightening damages
the threads of the bolts and nuts and ruins them.
Insufficient tightening causes oil leakage from the
installation face or damage to parts. 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 servicing requires the
removal of 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% of the tightening
torque.
Maintenace & Inspection
5
35
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MARINE DIESEL ENGINE 6CXM-GTE2
>
Bolt
dia. x pitch Tightening torque
mm Nm (kgf-m)
M
0
6 x 1.0 10.8 ±1.0 (1.1 ±0,1)
M
0
8 x 1.25 25.5 ±2.0 (2.6 ±0,3)
M10 x 1.5 49.0 ±4.9 (5.0 ±0.5)
M12 x 1.75 88.3 ±9.8 (14.0 ±1.0)
M14 x 1.5 137 ±9.9 (14.0 ±1.0)
M16 x 1.5 226 ±9.8 (23.0 ±1.0)
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Summary of Contents for 6CXM-GTE2
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