14.3)
Cooling system:
V-bElt
deflection
I
+
10 mm
--
Inspect fan belt tension every 10 hours. Replace belt
iffidyed or
if it can no longe! be tensioled to
specifi-
cation.
.35
+
.39 in.
The tension of the V-belt can be
adusted
by shims
between the V-belt
pulley
half
and the
fan
(resp.
the
protection
sheave on 503).
The v-belt is
co(ectly ten-
F=
sioned
when it can b€ depress€d 9
-
10 mm
(.35 +
.39
in.) wirh nomal
finger
prcssure "F" (in
the middle
between
the 2 V-belt sheaves).
14.3.1) Mounting of
V-Beltr
Ilt.35
Install the fan
(without
V-belt)
as
per
illustration .
Placc V-belt
diagonally
between
two blades of the fan,
tum
the
fan until the V-belt has moved into
the
pulley.
Fix V-belt
pulley
and
starting
pulley
loose with one of the3
screws.
Put V-belr
in the
pulley grcove
and tur:n
cnnkshaft irr order to tension the belt and to center
the
pulley
on the flywheel.
Now
the 2 remaining
screws
can be htted.
Sclew
torque: 22 Nm
(195
in.lb.).
ATTENTION:
On engines
type
503 never
put
adjustmcnt
shims between
protection
sheave aad
fan,
because this might cause
brreakage. Always
use fan holding
c
tool,
pan
no. 876 357. The belt musr be marked
before removal
and reinstalled
; in
same.direction.
possible
shims storage
\,vbcn
$ing new belt
edg e Etpe
503 only
far loldilg
tool
50N
11 tbf
^'
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