Workshop Manual

© 02/2006 6003-001
1/4
D 2008/2009
Drive system
W 02-09-07
6
Checking the piston
Commercial available tools:
– Micrometer gauge
– Internal measuring device
Special tools:
– Dial gauge. . . . . . . . . . . . . . . . . . 100400
– W 02-09-03
When the piston wear limit is reached the
piston must be replaced.
Checking the piston bolt bore
z Remove piston.
 W 02-09-03
© 41044-1
z Prepare internal measuring device:
– Mount probe bolt for the appropriate measuring
range in the internal measuring device.
– Mount dial gauge with approx. 1 mm pre-tension in
the internal measuring device.
– Set micrometer gauge to 28 mm.
– Balance the internal measuring device between
the test surfaces of the micrometer gauge and set
the dial gauge at the reversal point of the pointer to
"0".
© 34768-2