GGP Italy SPA Lawn Tractor 71505176 0 102-122 Operators Manual

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6. MAINTENANCE
6.1 SAFETY RECOMMENDATIONS
Before cleaning, maintenance or repair work, take out
the ignition key and read the relevant instructions. Wear suitable clothing
and strong gloves when dismantling and refitting the blades and in all
other hazardous situations for hands.
Never use the machine with worn or damaged parts.
Faulty or worn-out parts must always be replaced and not repaired. Only
use genuine spare parts: those that are not of an equivalent quality may
damage the machine or endanger the safety of yourself and others.
Never get rid of used oil, fuel or other pollutants in unautho-
rised places!
6.1.1 L
IFTING THE MACHINE VERTICALLY
If you need to have easy access to the lower part of the machine it is possible to
lift it vertically.
Place the machine on firm and flat ground. At least two
competent people should be involved in this operation to assure the nec-
essary safety.
In electric tipping models:
The tipping mechanism
must be closed.
Make sure that the tank does not contain
more than 2 litres of fuel and insert a block of
around 40 mm beneath the rear plate. Lift the machine from the front, being
careful to hold on to parts that offer a firm grip, and rest it on the points shown,
taking care not to damage the grass-catcher’s brackets.
Be sure of the good stability of the machine before car-
rying out any type of work on the machine and avoid operations which
may cause it to fall over.
!DANGER!
!WARNING!
➤
!WARNING!
IMPORTANT
!WARNING!
!WARNING!
40 mm 
						

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6.2 PERIODIC  MAINTENANCE
6.2.1
MAINTENANCE AND GENERAL LUBRICATION
Follow the diagrams which show the points requiring checks, lubricating and
routine maintenance, together with the type of lubricant to be used and the fre-
quency required.
a) Periodic maintenance(☛6.2.2)
100502510
1.9
1.10
1.11
1.7
1.13
1.5
1.1
1.1
21)
1.2
1.2
1.3
1.12
HOURS 
						

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b) Lubrification
For mechanical drive models:
➤
GREASE OIL - SAE 30
For hydrostatic drive models:➤ 
						

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6.2.2 GUIDE TO SCHEDULED MAINTENANCE
This table is to help you maintain your machine’s safety and performance. It
shows the main maintenance and lubrication work, indicating the frequency with
which it should be carried out. To the right of each item there is a box where you
write the date or after how many hours of operation the work was carried out.
WORKHOURSDONE(DAT E O RN°OFHOURS)
1. MACHINE
1.1Check of tight fixing and sharpness of blades25
1.2Blade replacement 100
1.3Check the transmission belt 25
1.4Transmission belt replacement  2)–
1.5Check the blade drive belt 25
1.6Blade drive belt replacement  2)–
1.7Check the belt connecting blades 25
1.8Replacement of belt connecting blades 2)–
1.9Check and adjustment of brake 10
1.10Check and adjustment of drive 10
1.11Check engagement and brake of blade10
1.12Check all fastenings for tight fitting 25
1.13General lubrication3)25
2. ENGINE1)
2.1Engine oil change .....
2.2Check and cleaning of air filter .....
2.3Air filter replacement .....
2.4Check fuel filter .....
2.5Fuel filter replacement .....
2.6Check and cleaning of spark plug points.....
2.7Replacement of spark plug .....
1)See the engine manual for the full list and frequency.2)Replace at the first signs of wear, contacting a Licensed Service Centre.3)General lubrication should also be carried out whenever the machine is to be
left unused for a long period. 
						

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6.2.3 ENGINE
Follow all the instructions in the engine
manual.
To empty the engine oil, unscrew the oil
plug (1). When refitting the plug, make sure
the seal is positioned correctly.
6.2.4 R
EAR AXLE
This is a sealed single unit which does not require maintenance. It is permanently
lubricated and this lubricant does not need changing or topping up.
6.2.5 B
ATTERY
To ensure long life to the
battery it is essential to keep
it carefully maintained.
The machine battery must
always be charged:
– before using the machine
for the first time after pur-
chase;
– before leaving the
machine for a prolonged
period of disuse;
– before starting up the
machine after a prolonged
period of disuse.
– To ensure long life to the
battery it is essential to
keep it carefully main-
tained.
The battery on your
machine must be charged
before using for the first
time and, subsequently, if
the machine is stored,
1
1 
						

							before the next time of starting up.
– A flat battery must be recharged as soon as possible.
Recharging must be done using a battery charger at con-
stant voltage.Other recharging systems can irreversibly damage the battery.
The machine has a connector (1) for recharging, to be connected to the corre-
sponding connector of the special “CB01” maintenance battery-charger sup-
plied  ( if included)or available on request  (☛8.5).
This connector must only be used for connection to the
CB01 maintenance battery-charger. For its use:
– follow the instructions given in the relative instruction booklet,
– follow the instructions given in the battery booklet.
6.3 CHECKS AND ADJUSTMENTS
Summary of the main situations where work may be required
6.3.1 D
ISMANTLING, SHARPENING AND BALANCING BLADES
Check that the blade is sharpened properly and firmly fixed to the bracket.
– A badly sharpened blade pulls at the grass and causes the lawn to turn yellow.
– A loose blade causes unusual vibrations and can be dangerous.
All operations on the blades (dismantling, sharpening,
!WARNING!
IMPORTANT
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IMPORTANT
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Every time that  ...
The blades vibrate
AThe blades tear the grass and the lawn
becomes yellow
The cut is uneven
The blades engage in an abnormal way
The machine does not brake
Forward movement is erratic
The grass-catcher jumps around and
tends to open up.You will need to  ...
Check the bolts (☛6.3.1) or balance the blades  (☛6.3.1).
Sharpen the blades (☛6.3.1).
Adjust the alignement of the cutting deck  (☛6.3.2).
Regulate the blade engagement adjuster  (☛6.3.3).
Adjust the brake spring  (☛6.3.4).
Adjust the stretcher spring(☛6.3.5).
Adjust the spring (☛6.3.6). 
						

							balancing, remounting and/or replacing) require a certain familiarity and
special tools. For safety reasons, go to a specialized centre if you do not
have the right tools or experience.
Wear strong gloves when handling the blades.
To remove a blade, hold it firmly and undo the central bolt (1)in the direction
indicated by the arrow for each blade, noting that one of the fixing bolts has
a right-hand thread and the other one has a left-hand thread.
Sharpen the two cutting edges using a medium grade grinding wheel and check
the balance by holding the blade up with a round 18 mm Ø bar inserted in the
central hole.
Damaged or bent blades must always be replaced;
never try to repair them! ALWAYS USE MANUFACTURERS GENUINE
REPLACEMENT BLADES BEARING THE SYMBOL  !
The blades differ, are at 90° to one another, and are con-
tra-rotating. When installing them, make sure that they are
correctly positioned by refering to
the code number marked on the
outside of each one.
When re-fitting
the blades, always follow the indi-
cated sequence, making sure that
the blades wings are facing
towards the interior of the cutting
deck and that the cupped side of
the cup washer (1) is pressing
against the blade. 
!WARNING!
!WARNING!
!WARNING!
!WARNING!
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1
2
2
1
1
2
43
Mod. 102:82004341/1 82004340/1 
Mod. 102:82004348/0 82004347/0 
Mod. 122:82004350/0 82004349/0 

						

							Tighten the fixing screws (2) using a torque wrench set to 45-50 Nm. If
one or both shaft hubs (3) come off when dismantling the blades, make
sure the keys (4) are securely lodged in place.
6.3.2 C
UTTING DECK ALIGNMENT
The cutting deck should be properly set to obtain a good cut. 
For achieving good results from cutting, the front part
should always be 5 - 6 mm lower than the rear.
– Put the machine onto a flat surface and check the tyre pressures;
– put 26 mm blocks (1) under the front edge
of the deck and 32 mm blocks (2) under the
rear edge, and thenput the lifting lever into
position «1»;
– loosen the nuts (3), the screws (5) and the
locknuts (4 – 6) on both the right and left
side, so that the deck is resting firmly on
the blocks;
–  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);
–  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 lock-
nuts (6).
If you are unable to get the cutting deck
adjusted properly, consult a Licensed Service
Centre.
NOTE
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4
1 = 26 mm
2 = 32 mm
37
5
6 
						

							6.3.3 ADJUSTMENT TO THE ENGAGEMENT AND BRAKE OF THE BLADES
For models with lever operated engagement
When the lever to disengage the blades
is operated, this also brings the blade
brake into operation for stopping the
blades within few seconds.
A badly functioning blade brake is usu-
ally due to wear in the brake lining (2)
and this will need to be changed by a
Licensed Service Centre. 
A stretched cable and changes in the
length of the belt can impair the blades’
engagement or rotation. 
To compensate this, turn the adjusting nut (1) till the correct spring length is
achieved (measured from the outer ends of the spring with the blades
engaged).
For models with electromagnetic clutch
If there is an unusual rotation due to the
belt; turn the adjusting nut (1) till the
correct spring length is achieved (mea-
sured from the outer ends of the spring).
If the electromagnetic clutch does not
manage to drive the belt or the blades
do not stop within few seconds, imme-
diately contact a Licensed Service Cen-
tre.
6.3.4 B
RAKE ADJUSTMENT
If the braking distance becomes longer than the amount indicated (☛5.3.6), the
brake spring will need to be adjusted.
The adjustment will need to be made while the parking brake is engaged.
Access for making this adjustment is by taking off the inspection hatch beneath
the seat.
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1
Mod. 102113 - 115 mm
Mod. 12290 - 91 mm
1
2
Mod. 10294 - 96 mm
Mod. 12292,5 - 93,5 mm 
						

							Loosen the nut (1) which holds on the brack-
et (2) and turn the nut (3) until the length of
the spring is:
A= 47.5 - 49.5  mm (For mechanical
drive models)
B= 45 - 47  mm (For hydrostatic drive
models)
measured inside the washers. When the
adjustment has been made, tighten the nut
(1). 
Do not screw below
these values to avoid overloading the brake
unit.
If the brake still does
not work properly even after this adjust-
ment, immediately contact the Licensed
Service Centre. DO NOT ATTEMPT OTHER WORK ON THE BRAKE THAN
DESCRIBED HERE.
6.3.5 A
DJUSTING THE TENSION OF THE DRIVE BELT
If you should notice that forward drive power has dropped, it will be necessary to
adjust the tension of the spring of the stretcher to return to former conditions.
Access for making this adjustment is by taking off the inspection hatch beneath
the seat.
Loosen the locking nuts (2) and tighten or loosen the screw (1) as much as nec-
essary for a length “A” of the spring (3) of:
A= 114 - 116  mm ( For mechanical
drive models)
A= 109 - 111  mm ( For hydrostatic
drive models)
measured to the outside of the end of the spring.
When the adjustment has been made, tighten the
nuts (2).
When replacing the belt, take
NOTE
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!WARNING!
IMPORTANT
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1
2
3
B
A
2
31
2
A
1
3