MTU 20 V 4000 G23 Technical Publication page 72

Maintenance
Qual- Interval
ifica-
tion
[h] [a]
QL3
QL3
QL4
M015715/00E 06-08
Item
Fuel delivery pump
Cylinder head
Extended component
maintenance
Maintenance tasks
Check vibration dampers (→Workshop Manual).
Overhaul charge-air coolant pump (→Workshop Manual).
Replace sealing materials of all disassembled components.
Overhaul engine coolant pump (→Workshop Manual).
Replace fuel delivery pump (→Workshop Manual).
Overhaul cylinder heads, check piston crowns and running pattern of
cylinder liners visually (→Workshop Manual).
Disassemble engine completely. Inspect engine components acc. to
assembly instructions; repair or replace as necessary (→Workshop
Manual).
Replace all elastomer parts and seals.
Replace piston rings (→Workshop Manual).
Replace conrod bearings (→Workshop Manual).
Replace crankshaft bearings (→Workshop Manual).
Replace cylinder liners (→Workshop Manual).
Replace auxiliary PTO antifriction bearing (→Workshop Manual).
Replace high-pressure fuel pump (→Workshop Manual).
Overhaul battery-charging generator (→Workshop Manual).
67
Task
W2011
W2070
W2062
W2110
W1051
W1063
W3000
W3001
W3002
W3003
W3004
W3005
W3006
W3007
W3042
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