Release 00 - 03/2018
Engine TRE 0701-TRE 0702-TRE 0801
pag. 47
11. ENGINE BLOCK - Overhauling internal parts
11.4. Dismantling and checking the piston, piston
rings, connecting rod and engine shaft
NOTA - These paragraphs describe all the
operations for checking and overhauling the
thermal components of the engine; it is left
to the operator to assess the advisability of
performing all the operations described or
only part of them, depending on the type of
engine problems encountered.
1 - Remove the engine from the machine [
11.1].
2 - Remove the cowl [ 6.1].
3 - Remove the fan and the ywheel [ 10.5].
4 - Dismount the cylinder head [
10.3].
5 - Open the cover [ 11.2].
6 - Remove the camshaft [ 11.3].
7 - Remove the right counterweight (26) and the
left counterweight (27).
8- Remove the cap (28) of the connecting rod (29)
by removing the two screws (30).
9 - Push the connecting rod (29) so as to cause the
piston (31) to come out of the cylinder (32).
10 -
Use the special expanding tool (33) to re-
move the two compression rings and the oil scraper
ring from the piston (31).
11 - Carefully remove all carbon deposits from the
compression rings, the inside of the cylinder and
the piston head.
26
27
30
28
29
31
32
33
31
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