MAN-045 ING
15
INSERT OIL SEALS .
USE TOOL AS PER DRAWING S725/3
(see Fig.10).
(MARK ON THE OIL SEAL MUST BE TOWARDS
THE EXTERNAL).
ATTENTION:
THE OIL SEAL MUST BE REPLACED AFTER
MAX. WORKING 6 HRS AND ALWAYS WHEN
REMOVED.
INSTALL PISTON
:
a) CHECK STATUS OF THE ROLLER CAGE.
IT MUST BE REPLACED AFTER MAX. 4
WORKING HRS.
b) CHECK STATUS OF PISTON PIN
REPLACE THE PISTON PIN WHEN
REPLACING PISTON.
(SEE ATTACHMENT ON MATCHING
SELECTIONS BETWEEN CONROD /
PISTON PIN / ROLLER CAGE).
c) INSTALL RING ON THE PISTON
(see Fig.11).
ATTENTION:
CHECK PLAY ON PISTON RING END GAPS
TO BE BETWEEN 0.10 AND 0.15mm.
PLAY MUST BE CHECKED USING A
THICKNESS GAUGE AND INSERTING THE
PISTON RING IN THE CYLINDER (see Fig.12)
d) INSTALL PISTON
ATTENTION:
PLAY BETWEEN PISTON AND LINER MUST
BE 0.08mm.
IF PLAY IS HIGHER THAN 0.10mm,
REPLACE PISTON.
FOLLOW ATTACHED INSTRUCTIONS FOR
CORRECT MATCHING.
PISTONS ARE MEASURED AT 15mm FROM
THE BOTTOM (see attachment).
ALWAYS CHANGE PISTON COMPLETE WITH
RINGS.
3.
e) IINSERT PISTON PIN AND ROLLER CAGE
IN THE PISTON (see Fig.13).
MAKE SURE THAT ARROW ON TOP OF
PISTON IS TOWARDS EXHAUST.
AS A GENERAL RULE, PISTON PIN MUST
BE FORCED IN HOLE. IF PISTON PIN IS
LOOSE IN SEAT, REPLACE IT WITH A
HIGHER DIAMETER PIN.
Fi
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