MTU 12V2000M91, Operating Instructions Manual

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6 Maintenance
6.1 Maintenance task reference table [QL1]
The maintenance tasks and intervals for this product are defined in the Maintenance Schedule. The Mainte-
nance Schedule is a stand-alone publication.
The task numbers in this table provide reference to the maintenance tasks specified in the Maintenance
Schedule.
Task Maintenance tasks
W0500 Check engine oil level (→ Page 116)
W0501 Visually inspect engine for leaks and general condition (→ Page 42)
W0502 Check intercooler drain (if fitted) (→ Page 42)
W0503 Check signal ring position of service indicator on air filter (→ Page 42)
W0505 Check relief bores of coolant pump(s) (→ Page 42)
W0506 Check engine for abnormal running noises, exhaust color and
vibrations (→ Page 42)
W0507 Drain water and contaminants from fuel prefilter (if fitted) (→ Page 42)
W0508 Check reading on differential pressure gauge of fuel prefilter (if
fitted) (→ Page 42)
W1001 Replace fuel filter or fuel filter element (→ Page 90)
W1002 Check valve clearance (→ Page 73)
W1003 Check belt condition and tension, replace if necessary (→ Page 137)
W1005 Replace air filter (→ Page 110)
W1006 Replace fuel injectors (→ Page 81)
W1007 Replace fuel injection pump(s) (→ Page 77)
W1008 Replace engine oil filter at each oil change or when the time
limit (years) is reached, at the latest (→ Page 119)
W1009 Check layer thickness of oil residue, clean and replace filter
sleeve (if fitted) at each oil change or when the time limit
(years) is reached, at the latest (→ Page 121)
W1011 Perform endoscopic inspection of combustion chambers (→ Page 66)
W1140 Clean wire meshes of crankcase breather (→ Page 70)
W1178 Replace pressure pipe neck in cylinder head (→ Page 85)
Table 2: Maintenance task reference table [QL1]
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