Global Garden Products Lawn Mower 72 72 Hydro Instructions Manual

If it does not enter easily and correctly,

 Adjust the insertion [see 4.11].
Fully tighten the nut
(5), put the lever (6)in position «7» engaging it in the stop notch,and remove the blocks
(2). Then refit the lever knob(3)and the hatch(4).
4/2005
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2.5.1
OPENING THE WHEEL COVER 





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

2.6 PRACTICAL HINTS
A) Fitting snap rings
One side of the “Benzing” snap rings (1)has a
rounded edge and the other a sharp edge.
For maximum grip the rounded part needs to be
facing towards the element to be held 
(2), with the
sharp edges on the outside.
B) Joint pivot pins
There are a large number of pivot pins, usually con-
nected to rods, that need to be able to move in var-
ious directions.
A typical situation has the pin 
(3) fixed by a self-
locking nut 
(4) with two anti-friction washers (5)in...

3.1 CRITERIA FOR MAINTENANCE
The Instruction Handbook has a number of operations to be carried out by the Customer for a minimum of
basic maintenance, and other operations not always within his capacity.
For this reason the Service Centre should undertake to keep the machine in perfect working order in two
ways:
a)Tuning the machine whenever possible.
b)Proposing a regular maintenance programme to the Customer to be carried out at prearranged intervals
(for example, at the end of the summer or prior to a...

© by GLOBAL GARDEN PRODUCTS
4.1 BLADE ENGAGEMENT ADJUSTMENT
The blade is run from the engine using a «V» belt
and is engaged by a stretcher worked from the
lever.
After a certain amount of use the belt can become
longer which can result in malfunctioning, i.e.:
–belt slipping = belt stretched
–difficulty in disengaging, with a stiff lever and
the blade continuing to run = belt shortened
In both cases the stretcher needs to be adjusted.
The length of the spring(1) must be adjusted with
the blade engaged...

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72
4.2.1
BLADE BRAKE ADJUSTMENT





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WORKSHOP MANUAL
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1998to  ••••
3/2003
4.2 BLADE BRAKE ADJUSTMENT
Disengaging the blade causes a brake to come
into action. This is to stop the blade turning within
five seconds.
Longer braking times do not comply with safety
regulations, but adjusting the brake so that it
stops quicker than this can cause the belt to slip
on the shoe resulting in overheating with the typi-
cal smell of burnt rubber.
The braking power on...

4.3 BRAKE ADJUSTMENT
Reduced braking power is corrected by adjusting
the spring on the brake rod which can be reached
after having lifted the wheels cover.

Lift the wheels cover [see 2.5].
The adjustment is to be made with the parking
brake engaged and consists of altering the length of
the spring to the best measurement. The braking
capacity is increased by screwing the nut down on
the rod (and thus shortening the length of the
spring).
➤In mechanical drive models:
Loosen the nut (1)which retains the...

© by GLOBAL GARDEN PRODUCTS
72
4.4.1
DRIVE BELT ADJUSTMENT





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WORKSHOP MANUAL
page from 
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3/2003
4.4 DRIVE BELT ADJUSTMENT
(➤mechanical drive models)
If it seems that the forward drive is not working
properly after a long period of use or after replac-
ing the belt, this may be caused by a change in the
length of the belt.
–A loose belt reduces output from the transmis-
sion and limits forward movement power;
–a belt which is too tight increases noise and
results in jerky...

© by GLOBAL GARDEN PRODUCTS
72
4.5.2
DRIVE LEVER ADJUSTMENT





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WORKSHOP MANUAL
page from 
2006to  ••••
3/2006
4.5 DRIVE LEVER ADJUSTMENT
( ➤hydrostatic drive models) 
This adjustment should be made every time work
is done on the drive lever unit or when the pedal
shaft, back axle or the lever return cable are dis-
mantled.
The main indicators that it is not working properly
are:
–the lever does not return when the pedal is
pressed = cable loose,
–the lever does not go the full distance,...

there is a free play of 0.5 mm between the shoe (10)
and the release rod (11).
C) Adjusting the clutch device
When in motion, the lever is held in the selected
position by a clutch device which is made up of a
sliding sector 
(12)between two friction discs (13),
pressed together by a spring 
(14).
The spring tension 
(14)is adjusted at the nut (15)
until a length of 18 mm is obtained with the pedal
released.
Check that the friction discs 
(13)are in good condi-
tion and with no traces of oil. Otherwise...

© by GLOBAL GARDEN PRODUCTS
72
4.5.2
DRIVE LEVER ADJUSTMENT





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WORKSHOP MANUAL
page from 
2006to  ••••
3/2006
With both nuts (24)loosened, close the two levers
(22) and (23)so that the terminal (20) is held
between them, push it back as far as possible and
then tighten the two screws 
(24).

Close up the wheels cover [see 2.5].
Tightening torque
24Nuts for lever limit stop  .................. 8 ÷ 11 Nm
24
20
22
23