The wear of the fuel injectors can result in elevated
levels of exhaust emissions and/or poor engine
performance. The misfire of a single cylinder is not
typically attributed to normal wear. This condition can
be repaired by replacing the faulty fuel injector.
The following list of circumstances indicate that the
fuel injectors should be inspected more frequently:
• Use of fuels that are not recommended in this
Operation and Maintenance Manual, “Fluid
Recommendations (General Fuel Information)”
• Extreme ambient temperatures that reduce the
ability of the fuel to provide lubrication
• Frequent plugging of the fuel filters
• Insufficient maintenance of the fuel tank or the fuel
storage tank that can allow excessive water,
sediment, and so forth.
• Insufficient maintenance of the fuel filters
Inspection, Reconditioning, or
Exchanging of Components
Recondition the worn components or exchange the
components, if necessary. Your Perkins distributor or
dealer can provide these services and components.
Inspect the following components:
• Camshaft followers
• Cylinder head assembly
• Engine wiring harness
• Exhaust manifold seals
• Exhaust manifold bellows
• Inlet manifold seals
• Rocker arms
• Spacer plate
• Software update
• Turbocharger
Inspection of Components
Inspect the following components:
• Aftercooler core
• Camshaft
• Driven equipment (alignment)
• Electronic Control Module (ECM)
i05971077
Overhaul Considerations
For an overhaul solution, contact your Perkins
distributor.
i08397655
Power Take-Off Clutch - Check
NOTICE
New power take-offs should have the clutch adjust-
ment checked before being placed into service. The
clutch adjustment should be checked again after the
first ten hours of operation. New clutch plates have a
“wear in” period, and the clutch may require several
adjustments until the new plates are “worn in”.
Illustration 79 g00781502
(1) Instruction plate
(2) Serial number plate
Check the clutch adjustment regularly after “wear in”.
Heavy-duty applications which have engagements
that are frequent and relatively long periods of clutch
slippage require more frequent adjustment than light-
duty applications. The operating torque should be
measured in order to determine if a clutch adjustment
is required.
Refer to the OEM information and instruction plate
(1) for instructions on lubrication, adjustment, and
other recommendations for service. Perform the
maintenance that is specified on the instruction plate.
110
SEBU9074-06
Maintenance Section
Overhaul Considerations
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