Operation of the engine at conditions other than above will affect performance and ex-
haust emissions. Normally the equipment manufacturer takes this into account during the
design of the machine and your equipment will perform within specifications over a wide
range of climatic conditions. However if you must operate your equipment under very un-
usual climatic conditions, please contact your nearest Hatz distributor for advice.
MAINTENANCE SCHEDULE-CARB-RELATED PARTS.
The following minimum intervals are being adopted for adjustment, cleaning, repair, or
replacement of following components:
At 1,500 hours, and 1,500 hours intervals thereafter:
• Fuel injector tips (cleaning only)
At 3,000 hours, and 3000 hours intervals thereafter:
• Fuel Injectors
Only applicable to the 4L42C and 4M42 engines:
At 1,500 hours, and 1,500-hours intervals thereafter:
• Fuel injector tips (cleaning only)
At 3,000 hours, and 3,000-hours intervals thereafter:
• Fuel injectors
• Cleaning of EGR pipe and intake manifold
The exhaust quality of engines can be influenced by the execution (the quality of
execution) of above described maintenance work.
Therefore, the maintenance work has to be carried out by a qualified workshop. Hatz
authorised workshops, for example, are qualified workshops. Hatz Diesel of America will
give you respective addresses, if required
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