Global Garden Products Lawn Mower 72 72 Hydro Instructions Manual

4.6 ALIGNING THE CUTTING DECK
The cutting deck is lowered by a lever and is guid-
ed by a connecting rod at the front and one at the
back right. A third connecting rod at the front left
is connected to the deck by an adjuster system.
In order to get a good cut it is essential that the
cutting deck is parallel with the ground crosswise,
and slightly lower at the front.
Two adjustments can be made on the jointed sys-
tem of the cutting deck:
a)a combined adjustment to the parallel and the
minimum height...

Having checked that the rod has no possibility of longitudinal movement, tighten the locknut (6).
Screw down the nut 
(7)of the transverse adjuster until the front left begins to rise, and then tighten the lock-
nut 
(8).
B) Adjusting the parallel across the cutting deck alone
Any difference in height from the ground between the left and right sides of the deck can be compensated by
turning the nut 
(7)and the locknut (8)at the front left coupling point.
NOTE
Remember to tighten all the nuts and locknuts...

4.7 STEERING ALLOWANCE ADJUSTMENT
The steering allowance should never be excessive
if driving is not to be impaired.
Check that the movement is not caused by loose
linkage nuts and tighten all the nuts of the tie-rods
and ball joints.
If the movement is in the pinion to ring gear cou-
pling, the height of the ring gear will need to be
adjusted by inserting spacers inside the hub.

 Remove the front and rear protection cover of
the steering column [see 5.1].

 Remove the footboard [see 5.2]. 
Unhook the...

When all parts have been fitted, ...

 Fit the footboard  [see 5.2].

 Fit the front and rear protection covers for the steering column and the footboard [see 5.1].
Tightening torque
5Ring gear fixing screw  .................... 25 ÷ 30 Nm
3/2002
72
4.7.0
STEERING ALLOWANCE ADJUSTMENT





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WORKSHOP MANUAL
page from 
1998to  ••••
© by GLOBAL GARDEN PRODUCTS 

4.8 STEERING GEOMETRY ADJUSTMENT
The correct steering geometry is given by the dis-
tances between centres of the two tie-rods con-
necting the wheels. 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...

© by GLOBAL GARDEN PRODUCTS
72
4.9.0
CHECK ON BLADE ALIGNMENT





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WORKSHOP MANUAL
page from 
1998to  ••••
3/2002
4.9 CHECK ON BLADE ALIGNMENT
Excessive vibration when cutting and an uneven
cut can be due to misalignment of the blade
owing to deformation of the flange or the shaft as
a result of accidental knocks.

Place the machine on its side [see 2.4].
Always wear strong gloves when handling the
blade.
Disengage the blade, place a straight metal rod (1)
on a point around the edge of the deck...

4.10 SHARPENING AND BALANCING OF THE
BLADE
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 blade and protect eyes when sharpening.
For removing a blade it must be firmly held and the
central screw 
(1)undone.
A) Sharpening
Always sharpen both cutting edges of the blade (2)
using a medium grade grinder. Sharpening must
only be done from the rounded...

© by GLOBAL GARDEN PRODUCTS
72
4.11.1
ADJUSTMENT OF THE COLLECTOR CHANNEL GUIDE





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WORKSHOP MANUAL
page from 
1999to  ••••
4/2005
4.11 ADJUSTMENT OF THE COLLECTOR
CHANNEL GUIDE
This adjustment is to be made after any work on
the collector channel guide and if the rear plate
has been dismantled.
The importance of this adjustment is in avoiding
that incorrectly inserting the channel opening in
the hole in the plate prevents the wheels cover
[see 2.5] from closing properly which could let
grass...

© by GLOBAL GARDEN PRODUCTS
72
5.1.1- REMOVAL OF THE STEERING COLUMN
PROTECTION COVER




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WORKSHOP MANUAL
page from 
1999to  ••••
4/2005
5.1 REMOVAL OF THE STEERING COLUMN
PROTECTION COVER
Removing the front protection cover of the steer-
ing column gives better access to:
–the battery
Remove the rear protection (1), held by two side
screws 
(2).
Dismantle the starter unit 
(3)and take out the signal
LED 
(4).
Dismantle the steering wheel 
(5)after having
removed the pin 
(6)using a punch.
Undo...

5.2 REMOVAL OF THE FOOTBOARD
Removing the footboard gives access to:
–the pinion and the ring gear of the steering.

Remove the steering column protection cover
[ see 5.1].
Dismantle the pedal 
(1) by unscrewing the two nuts
(2), and unscrew the knob (3)of the parking brake.
Unscrew the nut 
(4)to slightly lift the wheels cover
(5).
The footboard 
(6)is held to the frame by four inter-
nal screws 
(7)and four longer external screws (8)
with washers (9)for resting on the tubular support
element.
On...