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26
DRAGON
ED.
14 - 10/2020 - Cod. 150178
Fig. 6N
Fig. 7N
Fig. 8N
Fig. 9N
Fig. 10N
Lower seal
• Remove the piston stem
(
N11
) a
nd remove the pump unit
sleeve
(
N12
);
PIT STOP MAINTENANCE
Replacement of upper and lower gaskets 20 minutes
.
• Lock the pump unit into a vice and unscrew it with a 50mm
wrench;
• Release the pump unit from the body of the suction valve;
• Grip the stem valve
(
N13
)
in a vice;
• Use a screwdriver to remove the two open-ring guide bands
(
N15
)
and replace them;
• Use a size 24 spanner to unscrew the lower stem
(
N14
);
N13
Countersunk
side
N11
N12
N9
N10
N14
