UN41-0509MM
E
C
H
D
B
A
F
G
L
M
English language
Use and maintenance
38
INFORMATION CONCERNING REPLACEMENTS
8
Safety advice in case of replacements
When replacing worn or damaged parts, original
spares must always be used.
Special maintenance operations (non included in
this handbook) require a specialised workshop on
the premises which meets the requirements speci-
fied by the relative laws in force (appropriate equip-
ment suitably trained staff etc.); if you do not have a
compliant workshop, contact an authorised one.
Replacing the driving wheels pinion
For this operation, proceed as outlined below.
1) Move the lever (
E
) to lift the wheel in order to slack-
en off the chain.
2) Loosen the knobs (
A
).
3) Remove the casing (
B
).
4) Loosen the knobs (
C
).
5) Remove the casing (
D
).
6) Move the tensioner (
F
) and remove the chain (
G
)
from the pinion.
CAUTION
The tensioner could move unexpectedly, causing in-
jury to the hands.
Proceed with the utmost caution.
7) Unscrew the screw (
L
) and remove the pinion (
M
).
8) From the range of pinions (
H
), select the most suita-
ble pinion to obtain the required plant spacing (see
page 23).
9) Fit the new pinion and tighten the screw (
L
).
10) Fit the new chain on the pinions and on the chain
tensioners.
NOTICE
Fit the chain with the joining link positioned as
shown in the figure.
11) Fit the casing (
D
).
12) Tighten the knobs (
C
).
13) Fit the casing (
B
).
14) Tighten the knobs (
A
).
Repeat the same procedure to replace the pinion on the
other driving wheel.
