Dnepr MT10 - Page 40

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take out the pi ston pin s, using an appliance TIP-1254.
When re!11oYing the pi ston rings. tll<~ke m<Jrks on them in orc!er
\c correctly re-insl<J II them into ap proprtale grooves of the piston,
\\'ith
approp.-iate side up.
: \ft er di smanlling, clean the piston <JQ_Upislon rings of cHbo.i
deposit,
wash out and ex<Jm in e th em ?.nd Inake the required me as u-
rements. If necessary, replace the worn-out parts.
Fig. 4. lnslalling th e! cylinder
Re- assemble the piston a11d piston rings in the follo wing order:
hc< Jt the piston up to 80- 100° (;
fil the pin on a mandrel I!P-1255, <Jnd, from the other side, in se1 t
a guid in g cone into the pin ho le. Lub ri cate the p in with oil;
ensure th at the opening in the pi ston is m <Jtc hed with the ope lJ-
ing in the connecti ng rod s m<Jll end, and the po in ter on the piston
head is
di rected forw<Jr cl (towards the centrifuge), lhen pre ss dow;J
the piston pin by hand to fit it back in i ts place.
Fig. 5. Pr essi ng-out th e piston pi n
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