jcb G20, Руководство оператора

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Maintenance
Introduction
82 9831/0650-3 82
Maintenance
Introduction
General
WARNING The engine has exposed rotating parts. Switch off the engine before working in the engine
compartment. Do not use the machine with the engine cover open.
WARNING The machine can auto-start You must isolate the engine start circuit before you start service or
maintenance procedures.
CAUTION Understand the electrical circuit before connecting or disconnecting an electrical component. A
wrong connection can cause injury and/or damage.
CAUTION To avoid burning, wear personal protective equipment when handling hot components. To protect
your eyes, wear goggles when using a brush to clean components.
It is recommended that set maintenance is carried out on a regular basis. Machine maintenance requirements
should be followed to maintain warranty validity. Refer to: Maintenance Schedules (Page 88). A regular
preventative maintenance schedule is highly recommended in order to preserve the life of the generating set. A
generating set in stand-by application and in a healthy environment will require visual inspection approximately
once a month, while the same generating set in dusty, damp or humid climates will require inspection and
maintenance more often than this. Generating set preventative maintenance depends on generating set
environment, application and workload all these factors should be taken into consideration when planning a
maintenance schedule for the machine.
Daily checks should include a minimum of visual inspections for fluid leaks, loose connections, contamination,
debris etc. in addition to the recommended maintenance tasks.
If the generator is not being sufficiently loaded on a regular basis it may cause coking of the engine and exhaust
system which may cause excessive smoke and contamination of the lubrication oil. To avoid this problem
ensure the load on the generator is suitable (typically 60% or more of the generator maximum load). If this
problem does occur, then additional load will need to be applied to rectify the problem.
Connecting a load bank (additional electrical load) should be a routine action at normal service intervals if the
machine regularly operates at part load (less than 60%). In addition the lubrication oil should also be assessed
and a reduced service interval (possibly 50% of the recommended interval) should be adopted.
Equipment utilizing the engine must be correctly switched off and prepared, for example safety circuit brakers
tripped, prior to completing maintenance tasks on the engine. Maintenance must be completed by suitably
qualified personnel. You or others could be killed or seriously injured if the machine is not correctly prepared and
maintained. To obtain the best performance from your engine, make sure that the service tasks are completed
at the recommended period. If the machine/engine is working in adverse conditions, then the service intervals
should be reduced, examples of adverse conditions are:
• operating in a very dusty environment
• operating at light load for long periods
• operating in an environment with lots of chaff
• operating in an extremely hot or cold environment
• operating continuously at high altitude
• operating in an environment with high humidity
• operating with a low quality fuel. All maintenance procedures