WinGD X62DF, Maintenance Manual

Page: 62 / 902

3.3 Clearances - general
The chapter that follows gives the values for each group of components.
The values given in the columns “Nominal dimension” in the tables that follow are related to
design and manufacturing values, or to the settings on a new engine.
The values given in the columns “Maximum dimension” are the possible results after a long
period of operation. The differences in the clearances must not be less than or more than those
given.
On components where the clearance is adjustable (changed thickness of shims, discs, spacers
etc.) the values must be those given in column “Nominal dimension”. If this is not possible, you
must replace worn parts with standard new parts, or reconditioned parts with applicable material
build-up.
If, during an overhaul, clearances are measured that are almost at the permitted limit, personnel
has two alternatives:
• Replace the item immediately.
• Let the item stay installed until the next overhaul.
This is related, for example, on the length of the next operation period until the next overhaul
and the possible wear of components.
X72DF
AA00-0000-00AAA-034C-A
Maintenance Manual Clearances - general
Winterthur Gas & Diesel Ltd.
- 62 - Issue 002 2020-10