42 MS 200, MS 200 T
: Use the assembly drift (2) 
1114 893 4700 to push the piston 
pin (1) out of the piston.
If the piston pin is stuck, release it 
by tapping the end of the drift lightly 
with a hammer. 
Hold the piston steady during this 
process to ensure that no jolts are 
transmitted to the connecting rod.
: Remove the piston (1) from the 
connecting rod.
– Inspect the piston rings and 
replace if necessary, b 8.7
2 1
161RA126 TG
1
161RA127 TG
8.6.2 Installing
: Pull out the needle cage (1), 
check it and replace if necessary.
– Lubricate the needle cage with oil 
and push it into the connecting 
rod.
– Line up the piston so that the 
arrow on the piston crown points 
away from the nipple (arrow).
: Place the piston on the 
connecting rod.
1
161RA128 TG161RA129 TG
– Apply the assembly drift to the 
side with the installed snap ring – 
the assembly drift 
1114 893 4700 can be pushed 
through the installed snap ring.
: Push the assembly drift (1) 
1114 893 4700, small diameter 
first, through the piston and small 
end (needle cage) and line up the 
piston.
– Lubricate the piston pin with oil.
: Fit the piston pin (2) on the 
assembly drift (1) 1114 893 4700 
and slide it into the piston. 
1
161RA130 TG
21
161RA131 TG