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Maintenance Section
Cylinders - Inspect
Cylinders - Inspect
Use a borescope to inspect the cylinders. The
inspection will provide information about the internal
condition of the engine.
A borescope with a lens that can be angled up and
down is recommended. This type of borescope
provides a clear view of the combustion chamber and
of the bottom deck of the cylinder head. Photographic
documentation or video documentation is also
recommended. Consult your Perkins dealer for
information on available borescopes.
To perform this procedure, insert the borescope
through the openings for the spark plugs. Use the
borescope to look for the following conditions:
• Valve wear
• Marks on the piston crown
• Deposits on the valve seat
• Deposits on the valve face
• Polishing of the cylinder walls
• Scratching of the cylinder walls
• Deposits on the cylinder walls that are above the
upper limit of the piston stroke
Note: If you use a borescope be aware of the effect
of magnification. Minor scratches and marks can be
misunderstood. This can result in unnecessary
maintenance.
Driven Equipment - Check
To minimize bearing problems and vibration of the
engine crankshaft and the driven equipment, the
alignment between the engine and driven equipment
must be maintained properly.
Check the alignment according to the instructions
that are provided by the following manufacturers:
• OEM of the coupling
• OEM of the driven equipment
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Driven Equipment - Inspect/
Replace/Lubricate
Observe the driven equipment during operation. Look
for the following items:
• Unusual noise and vibration
• Loose connections
• Damaged parts
Perform any maintenance that is recommended by
the OEM of the driven equipment. Refer to the
literature of the OEM of the driven equipment for the
following service instructions.
• Inspection
• Lubricating grease and lubricating oil
requirements
• Specifications for adjustment
• Replacement of components
• Requirements for ventilation
Engine - Clean
Personal injury or death can result from high
voltage.
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Moisture
conductivity.
Make sure the unit is off line (disconnected from
utility and/or other generators), locked out and
tagged "Do Not Operate".
Water or condensation can cause damage to genera-
tor components. Protect all electrical components
from exposure to water.
Do not point high pressure water cleaners directly on
to electrical components.
A clean engine provides the following benefits:
• Easy detection of fluid leaks
could
create
paths
NOTICE
NOTICE
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of
electrical
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