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Global Garden Products Lawn Mower 92 92 Hydro Instructions Manual

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    							Find and undo all the screws securing the engine to
    the cutting deck, grip the engine firmly and lift it
    carefully, bearing in mind that its weight is around
    35 kg.
    NOTE
    Some type of engine are held with screws of differ-
    ent length and in different positions, so it is best to
    label them so that no errors are made on reassem-
    bly.
    On reassembly, fully tighten the screws for the
    engine and the pulley to the amounts shown.
    Remember to fit the clamp back on the fuel pipe
    and 
    check that it does not leak. 
    Reattach all the electrical and earth contacts and
    refit the protection covers (if fitted).
    To reassemble, reverse the order of the previous
    operations.
    Reset the belt shifter 
    (5)into position, refit the fork
    (4)with the relative safety pin (3)and fully tighten
    the screw 
    (2).
    ➤In hydrostatic drive models:reset the tension
    of the stretcher spring [see 4.4]. If only the front
    nut 
    (1)has been loosened without having
    touched the rear one, the right tension will be
    achieved by just tightening up the nut 
    (1).
    Reattach the accelerator cable and ... 
    Adjust the «MINIMUM» position [see 6.10].
    Refit the front hood [see 5.1].
    Tightening torques
    8Screw for pulley  ............................... 45 ÷ 50 Nm
    –Screws for engine fastening  ............. 25 ÷ 30 Nm
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    5.5.1
    REMOVAL OF THE ENGINE
    
    
    
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    							5.6 REMOVAL OF THE REAR AXLE
    The rear axle (Transaxle) is made up of single
    maintenance free sealed unit which includes the
    transmission unit ( 
    ➤mechanical or  ➤hydrostat-
    ic) and the differential. 
    It only needs to be removed to be replaced or for
    an overhaul by the Manufacturer’s Service Centre.
    Remove the collector channel [see 5.3].
    Put a block 
    (2)of around 160 mm under the rear
    plate and take off the rear wheels.
    The drive belt should also be loosened.
    This is done by ...
    ➤In mechanical drive models:engaging the
    parking brake.
    ➤In hydrostatic drive models:loosening the
    nut 
    (1)of the stretcher.
    Disconnect the blade engagement cable
    (3)by
    loosening the adjuster 
    (4)and taking off the barrel
    (5)at the end of the fork (6).
    The dismantling procedure differs slightly depend-
    ing on the various types of drives used.
    ➤In mechanical drive models: 
    Dismantle the guide pulley (7)from the rear plate
    and detach the gear lever
    (8)by loosening the 
    7
    34
    3
    6
    5
    26
    25
    2
    1
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    							screw (9)and the brake control rod (10). Then
    disconnect the cables from the microswitch sig-
    nalling “neutral”
    (12).
    The unit is supported by two brackets
    (13)with
    their screws 
    (14)and (15)and is attached to the
    frame by four screws 
    (16).
    Loosen the two screws 
    (14)to give a minimum of
    movement to the brackets 
    (13)and undo the two
    screws 
    (15). Then carefully loosen the four lower
    screws
    (16), holding up the unit so that it does
    not fall.
    ➤In the hydrostatic drive models:
    Dismantle the pin of the brake control rod(17)
    and the pin of the drive engagement control rod
    (18). Loosen the nut(19)of the release lever to
    detach the rod 
    (20) from the lever(21).
    The unit is held up by a support
    (22)and fastened
    to it by a screw with a nut 
    (23), and it is attached
    to the frame by four screws 
    (24).
    Undo the nut
    (23)and then carefully undo the
    four lower screws 
    (24), holding up the unit so that
    it does not fall.
    To reassemble, reverse the order of the previous
    operations, taking particular care with the two self-
    tapping screws 
    (15)which, if not screwed in cor-
    rectly, could damage the threads inside so prevent-
    ing it from being fastened properly.
    When refitting the blade engagement cable, make
    sure that the washer
    (25)is correctly positioned
    between the bracket 
    (26)and the cable sheath(3).
    Reattach all the connections, and then …
    Check the brake [see 4.3]
    24
    20
    21
    19
    23
    22
    15
    13
    316
    14
    1724
    10
    12
    9
    8
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    5.6.1
    REMOVAL OF THE REAR AXLE
    
    
    
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    							➤In hydrostatic drive models:if the control rod
    has been replaced or completely pulled down:
    Adjust the travel and the position of “neutral”
    for the pedal [see 4.5].
    Reset the tension of the stretcher spring [see
    4.4]. If only the front nut 
    (1)has been loos-
    ened without having touched the rear one, the
    right tension will be achieved by just tighten-
    ing up the nut 
    (1).
    When assembly is completed …
    Refit the collector channel [see 5.3].
    Tightening torques
    14Screws for brackets  ....................... 25 ÷ 30 Nm
    15Self-tapping screws  ....................... 25 ÷ 30 Nm
    16-24Screws for rear axle fastening  .. 25 ÷ 30 Nm
    23Rear axle locknut  ........................... 25 ÷ 30 Nm
    4/2005
    18
    92
    5.6.1
    REMOVAL OF THE REAR AXLE
    
    
    
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    							5.7 REMOVAL OF THE CUTTING DECK
    Removing the cutting deck facilitates all the over-
    haul and replacement of hubs, bearings and blade
    shafts.
    With some practice and experience it is possible
    to do this work with the deck still in position.
    Remove the collector channel [see 5.3]
    After moving the cutting height lever to position «1»,
    loosen the engagement cable adjuster 
    (1), pull it out
    and release the spring 
    (2).
    Loosen the screw 
    (3), unfasten the safety pin (4)
    and move the fork to the side (5).
    Turn the belt shifter 
    (6) forward until the belt (7)is
    released from the pulley 
    (8).
    Unscrew the two nuts 
    (9)fastening the two rods
    (10) to the frame and loosen the two nuts (11) fas-
    tening the deck.
    Release the three split pins
    (12)holding the pins
    onto the lifting lever, being careful to not touch the
    nuts and locknuts so that, on reassembly it is as
    parallel as it was before.
    Having checked that there is nothing in the way, the
    deck can be removed, taking it out towards the left
    so that all the pins come out of their positions.
    To reassemble, reverse the order of the previous
    operations,
    Reset the belt shifter 
    (6)into position, refit the fork
    (5)with the relative safety pin (4)and fully tighten
    the screw 
    (3).
    Reattach the collector channel [see 5.3].
    Check the alignment of the cutting deck [see
    4.6]. 
    12
    4/2005
    910
    11
    87645
    3
    12
    92
    5.7.2
    REMOVAL OF THE CUTTING DECK
    
    
    
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    6.1.0
    REPLACEMENT OF TYRES AND WHEELS
    
    
    
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    6.1 REPLACEMENT OF TYRES AND WHEELS
    A) Tyres
    The tyres used are of the «Tubeless» type and so
    every repair of a hole in the tyre must be done by a
    tyre specialist according to the methods used for
    this type of tyre.
    After replacing one or more tyres or the wheels, it is
    always necessary to check the pressure and to
    check the alignment of the cutting deck [see 4.6].
    WARNING
    Replace distorted wheel rims as they could impair
    the tyre’s hold.
    B) Wheels
    The wheels are held by a snap ring (1)which can be
    removed with the help of a screwdriver.
    NOTE
    If a wheel is jammed onto the shaft, use a releasing
    spray directing around the splining hole.
    When reassembling, smear grease over the shaft to
    help the next time the wheel needs to be removed;
    reposition the spacer washer 
    (2)and the snap ring
    (1)with the rounded edge facing inwards.
    Tyre pressures
    Front ........................................................... 1.5 Bar
    Rear ............................................................ 1.2 Bar
    3/2002
    1
    2 
    						
    							© by GLOBAL GARDEN PRODUCTS
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    6.2.0
    REPLACEMENT OF FRONT WHEEL BEARINGS
    
    
    
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    6.2 REPLACEMENT OF FRONT WHEEL 
    BEARINGS
    Dismantle the front wheel [see 6.1].
    The front wheel bearings 
    (1)are force splined into
    the front wheel hub.
    To be able to remove a bearing a 10 - 12 mm round
    bar 
    (2)is needed. Insert this from the opposite side
    and hammer it on various points around the internal
    circumference of the bearing.
    The new bearing must be inserted with the help of a
    plastic mallet or a bronze pad 
    (3)# code
    60800031/0 
    working only on the outer ring of the
    bearing
    .
    3/2002
    3
    1
    2
    1
    1 
    						
    							6.3 DISMANTLING STEERING COMPONENTS
     Remove the fuel tank [see 5.4].
    To facilitate access to the parts concerned, it is best
    to loosen the drive belt.
    This is done by ...
    ➤In mechanical drive models: engaging the
    parking brake.  
    ➤In hydrostatic drive models:loosening the
    nut 
    (1)of the stretcher. . 
    Unhook the spring 
    (2)and lift the steering column
    (3) just enough to be able to draw out the pinion(4).
    A) Dismantling steering pinion and ring gear
    Unscrew the nut (5)and take out the whole ring
    gear shaft 
    (6)after dismantling the tie-rod (7).
    To dismantle the ring gear 
    (6), take out the split pin
    (8c), undo the upper nuts
    (8a)and (8b)and take out
    the various components.
    On reassembling be very careful to restore the
    exact sequence and to fully tighten the nut
    (9a)
    which holds the pin (10a).
    9a
    10a
    3
    4
    6
    7
    11
    6
    8a
    8b8c
    2
    5
    1
    4/2005
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    6.3.1
    DISMANTLING OF THE STEERING COMPONENTS
    
    
    
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    6.3.1
    DISMANTLING OF THE STEERING COMPONENTS
    
    
    
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    First screw down the nut (8a)without fully tighten-
    ing it, so that the cup washer 
    (11)can fulfil its pur-
    pose, that of allowing rotation without free play but
    sufficiently freed from the ring gear. Then fully tight-
    en the locknut 
    (8b)and insert the split pin (8c).
    Reassemble the pinion and the ring gear shaft, lin-
    ing up the two reference points  ( 
    ➜- ) punched
    on them, and making sure that the notch 
    (12)on the
    frame slots into one of the housings in the bush.
    With a new pinion and ring gear it will be necessary
    to fit 2 blocks 
    (13)of 0,8 mm code 22672150/0
    between the ring gear bushing and the frame.
    Put the whole assembly back together in the
    reverse order, bearing in mind that it is best to
    attach the ring gear before the pinion, and fully
    tighten the nut 
    (5).
    ➤In hydrostatic drive models:  tighten the
    spring of the stretcher [see 4.4]. If only the front
    nut 
    (1)has been loosened without having
    touched the rear one, the right tension will be
    achieved by just tightening up the nut 
    (1).
    B) Lower bush replacement
    Use a universal socket wrench to unscrew the two
    screws 
    (14)that fix the plate (15)and remove the
    spherical lower bush 
    (16).
    On reassembly ensure that the bush 
    (16)is fitted
    with the protuberant part upwards.
    Refit the plate 
    (15)without tightening the screws
    (14).
    Align the pinion with the crown wheel [see 6.3.A]
    and insert the end of the steering wheel column 
    (3)
    in the hole in the spherical bush (16); fully tighten
    the screws 
    (14)after having checked the correct
    alignment and regular rotation of the steering wheel
    column.
    When reassembled ...
    Check the steering geometry [see 4.8].
    Refit the fuel tank [ see 5.4].
    Tightening torques
    5Nut for Ring gear  ............................ 45 ÷ 50 Nm
    9aNuts for the stud bolt  ..................... 45 ÷ 50 Nm
    4/2005
    14
    1416
    15
    2
    4
    3
    16
    15
    5
    12
    13
    118a
    8b
    8c
    14 
    						
    							6.4 REPLACEMENT OF THE DRIVE BELT
    Dismantle the engine pulley [see 5.5] to release
    the belt.
    Remove the collector channel [see 5.3].
    Loosen the nuts
    (1)holding the small side wheels
    (2)in order to release the belt, take off the drive
    pulley 
    (3)and the stretcher pulley (4), held on by
    the nuts
    (5)and (6).
    ➤In mechanical drive models:you need to dis-
    mantle the guide pulley 
    (7) attached to the rear
    plate.
    ➤In the hydrostatic drive models: in order to
    remove the belt, detach the brake control rod 
    (8)
    by dismantling the pin (9)from the lever (10).
    When reassembling, make sure that the belt
    (11)is
    correctly positioned in the pulleys inside the rims
    [see 8.2.4], taking particular notice of where it pass-
    es through the fork 
    (12).
    Always refit the dust covers 
    (13)of the wheels (2).
    When reassembled, ...
    Refit the engine pulley [see 5.5].
    Adjust the drive engagement [see 4.4].
    Refit the collector channel [see 5.3].
    Tightening torques
    1Nuts for small wheels ........................ 25 ÷ 30 Nm
    5 - 6Nuts for pulleys ........................... 25 ÷ 30 Nm
    9
    810
    4/2005
    7
    5
    3
    46
    1112
    1
    2
    13
    92
    6.4.1
    REPLACEMENT OF THE DRIVE BELT
    
    
    
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