Global Garden Products Lawn Mower 102 - 122 102 - 122 Hydro Instructions Manual

							102 - 122
4.8.0
STEERING GEOMETRY ADJUSTMENT





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WORKSHOP MANUAL
page from 
2000to  ••••
4.8 STEERING GEOMETRY ADJUSTMENT
The correct steering geometry is given by the val-
ues of the centre distance between the joints of
the tension rod and the wheel connecting rod.
Any faults caused by knocks or accidents result in
reduced driving precision and increased wear on
the tyres. These can be overcome as follows:
–uneven or excessive wear on the front tyres =
toe-in adjustment
–the machine does not maintain a straight line
when the steering wheel is straight = adjust-
ment of tie-rods.
NOTE
Before any other action, check that the joint fasten-
ings have not become loose.
A) Toe-in adjustment
An exact toe-in is achieved with a centre distance
of 515 mm which is measured between the centres
of the articulated joints
(1)of the wheel connection
rod
(2). If a different distance is found, dismantle
one or both the joints and screw or unscrew them
on the rod
(6)as much as necessary.
On assembly, fully tighten the locknuts
(3)and the
fastening nuts
(4)of the joints.
B) Adjustment of the steering wheel
Firstly check the toe-in (point “A”) and align the
front wheels.
If the steering wheel is not straight, dismantle the
articulated joint
(5)and screw or unscrew it on the
tie-rod
(6)as much as necessary.
On assembly, fully tighten the locknut 
(7)and the
fastening nut
(8)and check that the tie-rod, in its
travel,
does not interfere with parts or acces-
sories of the engine
even with the equaliser (9)
angled in both directions.
Tightening torques
3 - 7Locknuts for articulated joints ..... 25 ÷ 30 Nm
4 - 8Nuts for articulated joints ............ 45 ÷ 50 Nm
3/2002
9
75
8
6
1
32
4
515 mm
121
56
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102 - 122
4.9.0
CHECKING BLADES ALIGNMENT





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WORKSHOP MANUAL
page from 
2000to  ••••
4.9 CHECKING BLADES ALIGNMENT
Excessive vibration when cutting and an uneven
cut can be due to misalignment of the blades
owing to deformation of the flanges or the shafts
as a result of accidental knocks.

Put the machine into a vertical position  [see
2.4].
Always wear strong gloves when handling the
blades.
To check the alignment of the blades, one of them
must first be removed and refitted after having
removed the shaft key 
(2), to permit independent
blade rotation.
NOTE
Take note of the unscrewing and screwing direction
of the central screw of each blade
(1)[see 4.10].
With the blades disengaged, firmly hold each blade
and bring the cutting edges together in the various
positions possible (A-B; A-B1; A1-B1; A1-B). At
each position they should be aligned to within 2
mm.
If higher amounts are found, check that the blades
are not distorted. If this is not the case, check the
supports or the shafts for the blades [see 6.9],
replacing if necessary, and check the condition of
the point where the flanges rest on the cutting deck.
IMPORTANT!
Always replace damaged blades and do not
attempt to repair or straighten them. Always use
manufacturer’s genuine spare parts!
Having made the check, remember to refit the shaft
key 
(2)and check that the rotating blades do not
interfere with each other during a whole revolution.
A
A1B
B1
3/2002
< 2 mm
2
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							102 - 122
4.10.1- SHARPENING AND BALANCING OF
THE  BLADES




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WORKSHOP MANUAL
page from 
2000to  ••••
4.10 SHARPENING AND BALANCING OF THE
BLADES
A badly sharpened blade causes grass to
become yellow and reduces grass collection
capability. If not balanced, excessive vibration
can be caused during use.
Always wear protective gloves when handling
the blades and protect eyes when sharpening.
For removing a blade it must be firmly held and the
central screw
(1)undone, bearing in mind that:
–the screw on the left blade
(1a)is unscrewed
anti-clockwise
–the screw on the right blade 
(1b)is unscrewed
clockwise.
A) Sharpening
Always sharpen both cutting edges of the blade(2)
using a medium grade grinder. Sharpening must
only be done from the rounded side, removing as
little material as possible.
The blade is to be replaced when the cutting edge
has worn down to 10 mm.
B) Balancing
Using the appropriate equipment, check the bal-
ance to make sure that there is a maximum differ-
ence of 2 grams between one side and the other.
On reassembly, be sure to position the right and left
blades correctly, as well as that the splines
(3)are
correctly positioned on the shafts, the wings on the
blades are turned towards the inside of the deck
and that the concave part of the spring disc
(4)is
pressing against the blade.
Tightening torques
1aScrew for left blade  ...................... 45 ÷ 50 Nm
1bScrew for right blade .................... 45 ÷ 50 Nm
1b
1a
42
4
2
3
2
4
1a - 1b
3/2003
2
2
max 10 mm
2
21b
1a
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102 - 122
5.1.0
REMOVAL OF FRONT HOOD





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WORKSHOP MANUAL
page from 
2000to  ••••
5.1 REMOVAL OF FRONT HOOD
The removal of the front hood gives greater
accessibility to:
–the engine and its accessories
–the silencer and protection devices
To remove the hood, disconnect the connector to
the lights 
(1).
The hood can be secured in two ways.
A) Fixing with springs
Unhook the two fastener springs (2)and pull out the
pins 
(3).
B) Fixing with a split pin
Take out the split pin (4)from the right-hand side
and remove the hood by moving it to the right.
3/2002
4
1
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5.2.2
REMOVAL OF THE WHEEL COVER





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WORKSHOP MANUAL
page from 
2001to  ••••
5.2 REMOVAL OF THE WHEEL COVER
Removing the wheel cover gives access to:
–the mount for the lever to raise the deck;
–the supports of the footboards.
Remove the spring(1)fixing the battery, ensuring
that accidental short circuits are not caused; first
disconnect the black cables (earth), then the red
cable (positive) and remove the battery 
(2).
➤For models with lever operated engage-
ment: 
unscrew the blade engagement lever knob
(3)
➤For mechanical drive models: unscrew the
gear lever knob  
(4).
Remove the caps
(5)from the springs and undo the
screws inside
(6). 
Remove the seat after having dismantled the two
pins 
(7).
The cover (8)is fixed by two screws (9)located
under the side footboards and two screws 
(10)fix-
ing it to the rear plate.
9
7
7
8109
34
2
5
1
6
3/2006© by GLOBAL GARDEN PRODUCTS
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TX 
						

							102 - 122
5.2.2
REMOVAL OF THE WHEEL COVER





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WORKSHOP MANUAL
page from 
2001to  ••••
The cover can be removed after setting the cutting
height adjustment lever to position «7» and the
engagement lever
( ➤in models with lever oper-
ated engagement)
to the «blades engaged» posi-
tion.
On reassembly, ensure that the two side tabs 
(11)of
the cover are correctly inserted into the housings in
the footboards.
Tightening torques
9Lower cover fixing screw  ............. 4.0 ÷ 4.5 Nm
10Upper cover fixing screw   .......... 4.0 ÷ 4.5 Nm
3/2006
11
8
810
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							102 - 122
5.2a.0
REMOVAL OF THE WHEEL COVER





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WORKSHOP MANUAL
page from 
2006to  ••••
5.2a REMOVAL OF THE WHEEL COVER
Removing the wheel cover gives access to:
–the mount for the lever to raise the deck;
–the supports of the footboards.

Remove the dashboard and front cover [see
5.4a].
Remove the spring
(1)fixing the battery, ensuring
that accidental short circuits are not caused; first
disconnect the black cables (earth), then the red
cable (positive) and remove the battery 
(2).
➤For models with lever operated engage-
ment: 
unscrew the blade engagement lever knob
(3)
➤For mechanical drive models: unscrew the
gear lever knob  
(4).
Remove the caps
(5)from the springs and undo the
screws inside
(6). 
Remove the seat after having dismantled the two
pins 
(7).
The cover (8)is fixed by two screws (9)located
under the side footboards and four screws 
(10)fix-
ing it to the rear plate.
9
7
7
8109
34
2
5
1
6
3/2006© by GLOBAL GARDEN PRODUCTS
TC•
TX 
						

							102 - 122
5.2a.0
REMOVAL OF THE WHEEL COVER





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WORKSHOP MANUAL
page from 
2006to  ••••
The cover can be removed after setting the cutting
height adjustment lever to position «7» and the
engagement lever
( ➤in models with lever oper-
ated engagement)
to the «blades engaged» posi-
tion.
On reassembly, ensure that the two side tabs 
(11)of
the cover are correctly inserted into the housings in
the footboards.

Refit the dashboard and front cover [see  5.4a].
Tightening torques
9Lower cover fixing screw  ............. 4.0 ÷ 4.5 Nm
10Upper cover fixing screw   .......... 4.0 ÷ 4.5 Nm
3/2006
11
8
810
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TC•
TX 
						

							TC•
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© by GLOBAL GARDEN PRODUCTS
102 - 122
5.3.0
REMOVAL OF THE COLLECTOR CHANNEL





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WORKSHOP MANUAL
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2000to  ••••
5.3 REMOVAL OF THE COLLECTOR CHANNEL
Removing the collector channel gives access to:
–the small side wheels of the drive belt;
–the traction engagement control rod ( 
➤ in
hydrostatic drive models).
Removal of the collector channel is indispensable
for dismantling the cutting deck and if the rear
plate is to be removed.
Undo the rear plate inner fixing screws(1)and pull
out the collector channel
(2).
On reassembly, ensure that the collector channel is
properly housed on the cutting deck outlet, then
fully tighten the screws 
(1), checking that the collec-
tor channel can move freely when the cutting height
is changed.
Tightening torque
1Screws for collector channel .......... 25 ÷ 30 Nm
3/2002
2
1
2 
						

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5.4.0
REMOVAL OF THE DASHBOARD





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WORKSHOP MANUAL
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2000to  ••••
5.4 REMOVAL OF THE DASHBOARD
The dashboard is removed to make the following
more accessible:
–the accelerator;
–the ignition block,
–various electrical components.
With some drives it could be necessary to remove
the dashboard before it is possible to dismantle
the fuel tank.
Use a 5 mm diameter round bar to remove the pin
(1)and take out the steering wheel (2).
Disconnect the end of the accelerator cable from
the engine and disconnect all electrical connections
and the starter cable (where fitted).
At this point it is possible to remove the dashboard,
which is fixed to the frame by four self-threading
screws 
(3)and (4). The screws(3)are covered by
plastic caps on some models.
On reassembly, on some models, the direction of
the springs 
(5) must be adjusted in relation to the
position of the hood, to ensure fastening.
3/2002
3
5
1
2
3
4