Perkins 4006 User Handbook Manual page 50

PREVENTIVE MAINTENANCE
SCHEDULE FOR ENGINES IN CONTINUOUS DUTY
The preventive maintenance operations must be applied at the interval (hours or months)
which occurs first.
A - Daily
B - Every 250 hours or 6 months
C - Every 2500 hours or 12 months
A B C
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* By a person who has had the correct training.
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Operation
Check the coolant level
Check the lubricating oil level
Check the restriction indicators for the air filters and, when
necessary, renew the filter elements
Drain any water/sediment from the primary fuel filter
Check the condition and the tension of all drive belts
Check the specific gravity and the pH value of the coolant
Renew the lubricating oil and filter
Visually check for radiator air restriction
Clean centrifugal oil filter
Renew the canister of the main fuel filter
Clean the water trap sedimenter
Equalise bridge pieces and check valve clearances
Check that the air charge cooler and the radiator are clean and free
from debris
Drain and flush the coolant system and renew coolant mixture
Ensure that the fuel injectors are checked and corrected or
renewed, if necessary *
4006/8 Diesel, May 1998