Global Garden Products Lawn Mower 98S 98S Hydro Instructions Manual

							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
3/2002
98S
5.5.0
REMOVAL OF THE REAR AXLE





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98S
5.5.0
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).
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
3/2002
18 
						

							5.6 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.
Turn the front wheels to the left for greater access
and disengage the blades to loosen the belt.
After moving the cutting height lever to position «1»,
loosen the engagement cable adjusting nut 
(1), pull
it out and  release the spring 
(2).
Shift the mobile guide pulley 
(3)forwards and free
the belt from the pulley 
(4).
Unscrew the two nuts 
(5)which hold the two rods
(6) to the frame and loosen the two nuts (7)fasten-
ing the deck.
Release the three split pins 
(8)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.
After assembly, …

Check the alignment of the cutting deck [see
4.6].  
8
3/2002
56
7
3
4
2
1
98S
5.6.0
REMOVAL OF THE CUTTING DECK





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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
98S
6.1.0
REPLACEMENT OF TYRES AND WHEELS





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							© by GLOBAL GARDEN PRODUCTS
98S
6.2.0
REPLACEMENT OF FRONT WHEEL BEARINGS





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6.2 REPLACEMENT OF FRONT WHEEL BEAR-
INGS

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 5.3].
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
98S
6.3.1
DISMANTLING OF THE STEERING COMPONENTS





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98S
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 5.3].
I
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 5.4] to release
the belt.
Loosen the nuts 
(1)holding the small side wheels
(2) in order to release the belt, take off the drive pul-
ley 
(3) and the stretcher pulley (4), held on by the
nuts 
(5) and (6).
➤In mechanical drive models: you need to
dismantle 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 5.4].

Adjust the drive engagement [see 4.4].
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
98S
6.4.1
REPLACEMENT OF THE DRIVE BELT





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							6.5 REPLACEMENT OF THE SMALL WHEELS
FOR THE DRIVE BELT
For better access to the parts concerned the drive
belt should be slackened. This is done by:
➤In mechanical drive models: engaging the
parking brake  
➤In hydrostatic drive models: loosening the
stretcher nut 
(1). 
The two wheels 
(2)are held onto the frame by two
nuts 
(3), with a spacer in between (4).
When reassembling, there should be kept in mind
that:
–thetall spacer 
(4a)is to be fitted beneath the
right-hand wheel 
(2a - 2c);
–the short spacer 
(4b)is to be fitted beneath the
left-hand wheel 
(2b - 2d);
➤In mechanical drive models: 
the left wheel (2b) must be fitted to the frontsup-
port of the frame [see 8.2.4];
➤In hydrostatic drive models:
the position of the right-hand wheels (2c)and
left-hand wheels 
(2d)is determined by the differ-
ent use of the hole in the plate 
(5) screwed onto
the frame [see 8.2.4].
When reassembly is completed, tighten the nuts 
(3)
to the amounts shown and always refit the dust
covers 
(5)of the wheels (2).
Lastly ...

Adjust the drive engagement [see 4.4].
➤In hydrostatic drive models: reset the ten-
sion 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).
Tightening torque
3Nuts for small wheels  ..................... 25 ÷ 30 Nm
4a
4b
2c
2d
5
hydro
3/2002
4a
4b
2a
2b
mecc.
4
2
3
5
1
98S
6.5.0- REPLACEMENT OF THE SMALL WHEELS
FOR THE DRIVE BELT




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							6.6 REPLACEMENT OF THE BLADES BELT
Turn the front wheels to the left for greater access
and disengage the blades to loosen the belt.
After moving the cutting height lever to position «1»,
loosen the engagement cable adjuster 
(1), pull it out
and release the spring 
(2).
Shift the mobile guide pulley 
(3)backwards and free
the belt 
(4)from the pulley (5).
Take off both the right-hand protective cover 
(6)and
left-hand one 
(7)fastened by the screws (8).
Push the right-hand brake lever 
(9)to the left to free
the belt 
(5)from the right-hand blade pulley.
Remove the central guide pulley 
(10), secured by
11
10
5
88
7
9
5
6
88
3
54
2
1
3/2002
98S
6.6.0
REPLACEMENT OF THE BLADES BELT





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