4 Maintenance
4.1 50-hours check
50-hours check
One-time operations to be carried out after the first 50 operating hours of the cylinder head (with a new
engine, after installation of new cylinder heads, after component maintenance or extended component
maintenance).
When installing a cylinder head with run-in mating faces (e.g. after piston replacement), a repeated
check after the first 50 operating hours is not necessary.
Qualifi-
cation
Interval Item Tasks Task
[hours] [years]
QL1 - - Valve gear Check valve clearance (→ Page 153) -
50 | Maintenance | MS150033/05E 2013-10
TIM-ID: 0000002785 - 001
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