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GGP Italy SPA Lawn Tractor 71503773 2 Operators Manual

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    							responding 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 user manual,
    – 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,
    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.
    !WARNING!
    !WARNING!
    IMPORTANT
    ➤
    EN 40MAINTENANCE
    Every time that  ...
    The blades vibrate
    The 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 erraticYou will need to ...
    Check the bolts (☛6.3.1) or balance the blades 
    (☛6.3.1). 
    Sharpen the blades   (☛6.3.1).
    Adjust the alignment of the cutting deck (☛6.3.2).
    Regulate the blade engagement adjuster (☛6.3.3).
    Check the brake  (☛6.3.4).
    Adjust the stretcher spring (☛6.3.5). 
    						
    							EN 41 MAINTENANCE
    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 and are contra-rotating. When
    installing them, make sure that they are correctly positioned by referring
    to the code number marked on the outside of each one.
    When
    assembling the blade,
    always follow the instruc-
    tions given, making sure the
    blade wings are facing
    towards the inside of the
    cutting deck and the cupped side of the
    elastic disc (1) is pressing against the
    blade. 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
    NOTE
    !WARNING!
    !WARNING!
    !WARNING!
    Ø 18 mm
    21
    21
    1
    2
    43
    82004345/1 82004344/1 
    
    82004352/0 81004346/3 
    
    82004354/0 82004353/0 
    1
    1 
    						
    							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 then put the lifting lever into
    position  «1»;
    – fully loosen the adjuster (3), the nuts (4 – 6 –
    8) and the locknuts (5 – 7 – 9) of the three
    trace rods until the deck is resting on the
    blocks;
    – screw the two upper right nuts (6 – 8) and
    the lower left nut (4) until the deck starts ris-
    ing; tighten the three locknuts (5 – 7 – 9) and
    turn the adjuster (3) until the control cable is
    taut.
    Any difference in height from the ground
    between the right and left side of the deck can
    be compensated by turning the two nuts (4 – 8)
    and locknuts (5 – 9) of just the back rods.
    Move the control lever to 2 or 3 different positions, making sure that the deck
    rises evenly and that the difference in height from the ground remains the same
    between the front and rear edge.
    If the front part rises too early or too late, you can regulate the movement by
    turning the nuts (10) on the connecting rod (11).
    Screwing the nuts on the rod makes the rear part rise earlier, while unscrewing
    them does the opposite.
    Always remember to fully tighten all the nuts and locknuts when the adjustment
    has been made.
    If you are unable to get the cutting deck adjusted properly, consult a Licensed
    Service Centre.
    EN 42MAINTENANCE
    2 - h = 32 mm
    1 - h = 26 mm
    10
    6
    11
    7
    3
    5
    4
    8
    9 
    						
    							EN 43 MAINTENANCE
    6.3.3 ADJUSTMENT TO THE ENGAGEMENT AND BRAKE OF THE BLADES
    When the blade disengagement lever is
    operated, it also brings the blade brake
    into operation which stops the blades
    within few seconds.
    A stretched cable and changes in the
    length of the belt can impair the blades’
    engagement or rotation. 
    To compensate this, turn the adjuster (1)
    until the correct spring length (2) is
    achieved (measured from the outer ends of the springs with the blades
    engaged).
    6.3.4 B
    RAKE ADJUSTMENT
    Should the brakes work poorly, consult a Licensed Service Centre immediately.
    6.3.5 A
    DJUSTING THE TENSION OF THE DRIVE BELT
    Should you notice a drop in forward drive
    power, adjust the tension of the spring of
    the stretcher to return to former condi-
    tions.
    The adjustment is made by opening the
    engine hood to reach the right side of the
    engine.
    Turn the nuts (2) as much as necessary to
    reach length “A” of the spring (1) of:
    A= 119 - 121  mm (For mechanical drive models)
    A= 120 - 122  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). 
    ➤
    ➤
    1
    A
    2
    12
    97 ÷ 99 mm 
    						
    							When replacing the belt, take great care when using for the
    first few times as engagement may be sudden until the belt is sufficiently run in.
    6.4 DISMANTLING AND REPLACEMENT
    6.4.1 R
    EPLACING WHEELS
    Stop the machine on a flat surface and put a block under a load-bearing part of
    the frame on the side that the wheel is to
    be changed.
    The wheels are held by a snap ring (1)
    which can be eased off with a screwdriv-
    er.
    The rear wheels are directly coupled to
    the differential axle shaft and fastened by
    a key that forms part of the wheels hub.
    Should you substitute one or both rear wheels, ensure that
    they are of the same diameter, and check that cutting deck is horizontal to pre-
    vent an uneven cut.
    Before refitting a wheel, smear some waterproof grease on
    the axle and carefully refit the snap ring (1) and washer (2).
    6.4.2 R
    EPLACING AND REPAIRING TYRES
    The tyres are of the «Tubeless» type and therefore all puncture repairs will have
    to be carried out by a tyre-repair expert in accordance with the methods for this
    kind of tyre.
    IMPORTANT
    NOTE
    NOTE
    EN 44MAINTENANCE
    21 
    						
    							EN 45 MAINTENANCE
    6.4.3 REPLACING BULBS( if fitted)
    The bulbs (18W) have a bayonet fitting and are
    installed in the bulb holder which can be taken out
    by turning it anti-clockwise, using pliers.
    6.4.4 R
    EPLACING A FUSE
    The machine is fitted with fuses (1) with different
    capacities and functions. Specifically:
    – 6.3 A (delayed) fuse (1) = protects the main and
    power circuits of the electronic board. When it
    blows, the machine stops and the dashboard
    light switches off.
    – 25 A fuse (2) = protects the battery charger cir-
    cuit. When it blows, the battery gradually runs
    out and the machine will have problems start-
    ing.
    The fuse capacity is indicated on the fuse.
    A blown fuse must always be replaced by one of the same
    type and ampere rating, and never with one of another rating.
    If you cannot find out why the fuse has blown, consult a Licensed Service Cen-
    tre.
    6.4.5 R
    EPLACING BELTS
    Replacing belts is quite a complicated process of dismantling and subsequent
    adjustment and must only be carried out by a Licensed Service Centre.
    Replace the belts as soon as they show obvious signs of
    wear! ALWAYS USE GENUINE REPLACEMENT BELTS!
    NOTE
    IMPORTANT
    ➤
    2
    1 
    						
    							EN 46TROUBLESHOOTING
    7. TROUBLESHOOTING
    PROBLEM LIKELY CAUSE SOLUTION
    1.With the key on
    «ON», the light
    remains off
    2.With the key on
    «START» the light
    flashes and the starter
    motor does not run
    3.With the key on
    «START» the light
    comes on but the
    starter motor does not
    run
    4.With the key on
    «START»,  the starter
    motor runs, but the
    engine does not run
    5.Starting is difficult
    or the engine runs
    erraticallyThe protection of the electronic card has
    cut in due to:
    – badly connected battery 
    – battery terminals crossed
    – completely flat battery or eroded bat-
    tery plates
    – fuse blown
    – bad earthing to the engine or the frame
    – electronic card wet
    – earthed micro-switches
    – you are not ready for starting    
    – insufficiently charged battery
    – battery charger fuse blown
    – badly earthed starter motor
    – insufficiently charged battery
    – faulty fuel supply
    – faulty ignition
    – fault in carburationTurn the key to «STOP»  and look for the
    cause of the problem:
    – check connections  (☛3.4)
    – check connections  (☛3.4)
    – recharge battery  (☛6.2.5)
    – replace fuse (6.3 A  - delayed)
    (☛6.4.4)
    – check connections of black earth
    leads
    – dry using tepid air
    – check connections
    – check that the conditions allowing
    starting are met  (☛5.2.a)
    – recharge battery  (☛6.2.5)
    – replace fuse (25 A) (☛6.4.4)
    – check earth connections
    – recharge battery  (☛6.2.5)
    – check the level in the tank
    (☛5.3.3)
    – open the fuel stopcock  ( sif fitted)
    (☛5.4.1)                              
    – check the wiring of the fuel open com-
    mand ( if fitted)
    – check the fuel filter
    – check that spark plug caps are firmly
    fitted
    – check that the electrodes are clean
    and have the correct gap
    – clean or replace the air filter
    – flush out the float chamber
    – empty fuel tank and refill with fresh
    fuel
    – check and, if necessary, replace fuel
    filter
    ➤
    ➤ 
    						
    							EN 47 TROUBLESHOOTING
    PROBLEM LIKELY CAUSE SOLUTION
    6.Weak engine per-
    formance during cut-
    ting
    7.The engine stops
    but the light flashes
    8.The engine stops
    and the light goes off
    9. The engine stops
    but the light stays on
    10.The blades do not
    engage 
    11.Uneven cut and
    poor grass collection– forward speed too high in relation to
    cutting height  (☛5.4.5)
    – the safety devices cut in  
    The protection of the electronic card has
    cut in due to:
    – earthed micro-switch
    – battery contains electrolyte but is not
    charged
    – overvoltage caused by the charge reg-
    ulator
    – badly connected battery (poor contact)
    – engine badly earthed
    – problems in the engine 
    – cable lengthened or belt loosened
    – cutting deck not parallel to the ground
    – blade cutting badly 
    – forward speed too high compared to
    height of grass (☛5.4.5)
    – collector channel is blocked
    – cutting deck full of grass– reduce the forward speed and/or raise
    the cutting deck
    – check that the conditions allowing
    starting are met (☛5.2.b)
    Put the key in position «STOP»
    and look for the cause of the problem:
    – check connections
    – recharge battery  (☛6.2.5)
    – contact a Licensed Service Centre
    – check connections  (☛3.4)
    – check engine earth connection
    – contact a Licensed Service Centre 
    – turn the adjuster  (☛6.3.3)
    – check the tyre pressures  (☛5.3.2)
    – realign the cutting deck to the ground
    (☛6.3.2)
    – check that the blades are fitted prop-
    erly  (☛6.3.1)
    – sharpen or fit new blades  (☛6.3.1)
    – check the tension of the belt and con-
    trol cable of the blade engagement
    lever  (☛6.3.3)
    – reduce forward speed and/or raise the
    cutting deck
    – wait for the grass to dry
    – remove the grass-catcher and empty
    the collector channel  (☛5.4.7)
    – clean the cutting deck  (☛5.4.10) 
    						
    							EN 48TROUBLESHOOTING
    PROBLEM LIKELY CAUSE SOLUTION
    12.Unusual vibrations
    while working
    13.With the engine
    running, the machine
    does not move when
    the drive pedal is
    pressed ( for
    hydrostatic drive mod-
    els)
    ➤
    – the blades are imbalanced
    – blades loose
    – fixing bolts loose
    – disengage lever in position  «B»        (☛
    4.33)– balance or replace any damaged
    blades  (☛6.3.1)
    – check that the blades are firmly fitted
    (☛6.3.1) (remember the left-hand
    thread of the right-hand blade)
    – check and tighten all the fixing bolts
    of the engine and frame
    – put into position «A»
    If problems continue after having carried out these operations, contact a
    Licensed Service Centre.
    Do not take on complicated repair work if you dont
    have the necessary equipment and the technical knowledge. The guar-
    antee is automatically revoked and the manufacturer declines all
    responsibility for any repairs which are badly done.
    !WARNING! 
    						
    							EN 49 ACCESSORIES ON REQUEST
    8. ACCESSORIES ON REQUEST
    1. FRONT COUNTERWEIGHTS
    These improve stability at the front of the
    machine, particularly when being used on ground
    which is mostly sloping. 
    2. STONE-GUARD KIT
    For use in place of the grass-catcher when the
    cuttings are not to be collected.
    3. TOWING HITCH
    For towing a small trailer.
    4. CLOTH COVER
    Protects the machine from dust when not in use.
    5. CB01 MAINTENANCE BATTERY-CHARG-
    ER
    This makes it possible to keep the battery in good
    working order when the machine is in storage,
    guaranteeing an optimum level of charge and a
    longer life to the battery.
    6. KIT FOR “MULCHING” (only on pre-
    arranged models)
    It finely chops the grass cuttings and leaves them
    on the lawn, instead of collecting them in the
    grass-catcher.
    1
    2
    3
    4
    5
    6 
    						
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