Operating instructions

  6 Maintenance Schedule  Application Group 3A

4.4 Maintenance Schedule  Application Group 3A

4.4.1 Maintenance schedule

Application group

3A: Continuous operation with 100% load, unrestricted

MTU maintenance levels

Maintenance level Operating hours Time limit Scope of maintenance

W2 500 6 months W2

W3 1000 1 year W2, W3

W4 5000 2 years W2, W3, W4

The maintenance operations must be carried out in the following cases:

 when the number of operating hours as per MTU maintenance level (W) is reached;

 when the time limit specified by MTU is reached;

 additionally, a test run must be carried out every month (

Page 6  2).

Maintenance task schedule

W Item Task

W2 Fuel filter Replace ( Page 6  22).

W2 Fuel prefilter Replace filter element ( Page 6  27).

W2 Fuel prefilter Clean( Page 6  23).

W2 Air system Check air intake for leaks.

W2 Engine oil Take sample of used oil and analyze ( Page 6  33).

W2 Engine oil Change ( Page 6  34)

 With oil category 1 without additional oil filter: every

250 operating hours;

 With oil category 1 with additional oil filter: every 500

operating hours;

 With oil category 2 without additional oil filter: every

500 operating hours;

 With oil category 2 with additional oil filter: every

1000 operating hours;

W2 Engine oil filter Replace, accomplish when changing the oil.

(

Page 6  36).

W2 Centrifugal oil filter(s) Clean, replace sleeve ( Page 6  37).

W3 Valve gear Check valve clearances ( Page 6  8).

W3 Exhaust system Check for leaks.

W3 Engine coolant Take sample and analyze ( Page 6  42).

W3 HT coolant pump Check relief bore for oil and coolant discharge and

obstructions (

Page 6  43).

W3 Charge-air coolant Take sample and analyze ( Page 6  48).