3/2002
as a work bench) and put blocks beneath the cutting deck in line with the centre lines of the blades:
– at the front 26 mm
(1)
@ code 60700000/0,
– at the rear 32 mm
(2)
@ code 60700001/0;
then set the lifting lever to position «1» and slacken off the nuts
(3)
, screws
(5)
and locknuts
(4 - 6)
on both the right
and left hand sides, so that the deck rests firmly on the blocks.
Slacken off the nuts
(8)
and locknut
(9)
of the two front connecting rods
(10)
and adjust nuts
(8)
of the front left
connecting rod to set the exact distance «
A
» of:
– 489 mm (mod. 102)
– 474 mm (mod. 122)
between the centre of the engine pulley hub and the centre of the left blade shaft.
This operation is facilitated by using the checking caliper
(11)
@ code 60205000/0 illustrated in chap. 8.3, suitably
positioning the engine side terminal
(11a)
depending on whether the electromagnetic clutch is present or not.
Distance «
B
» is set by using the corresponding front right connecting rod nuts
to obtain the same measure-
ment, so that the outlet is perfectly centred with respect to the collector channel
; then fully tighten the
nuts
(8)
and locknut
(9).
NOTE
It is very important that distance «
B
» is the same on both the left and right hand sides, to prevent the belt from rub-
bing against the collectorn channel.
Turn both the rear screws
(5)
until the rear of the deck begins to rise both at the right and the left, and then tighten
the relevant locknuts
(6)
.
Push the two connecting rods
(7)
to the back and screw down the two nuts
(3)
on each rod until the front part of
the deck just begins to rise both at the right and the left, and then tighten the relevant locknuts
(4)
.
102 - 122
4.6
.
0
- ALIGNING THE CUTTING DECK
2 / 2
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2000
to
••••
WORKSHOP MANUAL
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