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302.028
9
PART REPLACEMENT
9.1. FEED CHAIN - REPLACEMENT
(fig. 1)
– Remove the front guard.
– Slacken the chain (see paragraph 5.2.1).
– Remove the fork pin
A
and the link
B
.
– Replace the chain.
– Fit the link
B
and the fork pin
A
back in their posi-
tion.
– Stretch the chain (see paragraph 5.2.1).
– Install the front guard.
9.2. CARRIAGE BACK LIMIT SENSOR -
REPLACEMENT
(fig. 2)
– Remove the front guard.
– Replace the sensor
A
and fit the new sensor by pro-
ceeding as follows:
1-
keep the sensor 1 mm far from plate
B
;
2-
moving carriage
C
backwards, the sensor LED
shall turn on when the carriage abuts against lever
D
. The display shall show a -3,0 to -4,0 mm
displacement.
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