Global garden products MJ66 Instruction manual

WORKSHOP MANUAL
WORKSHOP MANUAL
Rel. 3.0
YEAR OF MANUFACTURE 2015
The Manufacture reserves the right to make any improvements to the product of a technical or commercial nature
that may be necessary. There may be, therefore, dierences between the various series of machines and that
described here, though the basic features and various repair methods will remain the same.
© by GLOBAL GARDEN PRODUCTS - No use of the illustrations or duplication, reproduction or translation,
even partial, of the texts in this document may be made without explicit authorization.
All brands, names, logos and trademarks mentioned
belong to their respective owners.
IMPORTANT NOTICE - The information contained herein is intended
for Service Operations and professionals only, able to competently
perform the operations described herein, using the appropriate equip-
ment in order to safeguard security and performance of the machine.
The manufacturer is not liable for damages or injuries arising from
operations performed by individuals or inadequate facilities.
MAP OF INTERVENTIONS
MJ66-HyMJ66

MJ66
MJ66 SD
MJ66-Hy
MJ66 SD-Hy
WORKSHOP MANUAL
MAP
i.0
INDEX
1. Rules and procedures for Service Centres
This chapter covers all the main aspects of the re la
tionship between the manufacturer and the service
centres.
A close collaboration between the manufacturer
and the service centres is conclusive for solving
problems in the most eective way as well as main
taining an image of eciency and reliability.
Compliance with these brief and simple guidelines
will facilitate this task and prevent general misun
derstandings and timewasting for both the manu
facturer and the service centre.
2. General and safety regulations
This chapter covers the main aspects of a servi c ing
procedure and the general rules for guaranteeing a
successful service which protects the en vironment
and respects the safety of both the ser viceman and
the user of the apparatus.
3. Maintenance
This chapter deals with the criteria for routine main 
ten ance.
4. Adjustments and tuning
This chapter deals with the adjustments to be ma de
to remedy the more frequent performance failures
and are usually resolved by quick checks and tun
ings.
5. Removal of external parts
and main assemblies
For doing more dicult jobs, greater accessibility
may be required. This can be done by taking the
unit concerned o and working at the bench, or by
removing the cover or other external parts.
Whether or not this will be useful is at the discretion
of the mechanic’s experience.
6. Repairs
This chapter deals with all the more complex work
connected with the replacement or repair of mal
functioning or worn parts.
The descriptions must follow a logical sequence
and can include operations not specically con
nected to a particular type of repair.
In this case, careful reading of the entire procedure
can help you omit all those operations not con
nected with the case in hand without, howe ver,
overlooking anything that may be necessary.
7. Electrical system
This chapter deals with the problems and checks
con nect ed with the electrical system.
All work can be done using a tester without ha ving
to use special equipment.
The electrical diagrams can be useful to you for
un derstanding how the system functions and to
fa cilitate the pinpointing of any problems.
8. Technical specications
This chapter summarises all the main information
re garding the machine.
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MJ66 MJ66-Hy
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MJ66
MJ66 SD
MJ66-Hy
MJ66 SD-Hy
WORKSHOP MANUAL
MAP
i.0
INDEX
5. Removal of external parts and main assemblies
5.1 0 Removal of steering column covers
5.2 1 Removal of the side guards
5.3 2 Removal of the wheel cover
5.4 1 Removal of the tank
5.5 2 Removal of the engine
5.6 2 Removal of the rear axle ( mechanical drive models)
5.6a 2 Removal of the rear axle ( hydrostatic drive models)
5.7 2 Removal of the cutting deck
5.8 2 Rimozione del convogliatore di espulsione
5.9 0 Removing the lower part of the rear plate
6. Repairs
6.1 0 Replacement of tyres and wheels
6.2 0 Replacement of front wheel bearings
6.3 2 Replacement of the drive belt
( mechanical drive models)
6.3a. 1 Replacement of the drive belt
( hydrostatic drive models)
6.4 1 Replacement of the blade belt
6.5 1 Replacement of the support and shaft of the blade
6.6 1 Disassemble the steering column and replace bushes
6.7 0 Replacing the accelerator and adjusting the carburettor
6.8 1 Replacement of the lifting cable
6.9 0 Brake cable replacement
6.10 1 Replacing the drive engagement cable
( mechanical drive models)
6.11 1 Replacing the blade engagement cable
6.12 2 Replacing and regulating the gear cable
( mechanical drive models)
6.13 0 Replacement of the brake pads and disc
7. Electrical system
7.1 1 Troubleshooting of the electrical system
7.2 1 Table for the cutting in of the safety devices
7.3 2 Safety microswitches operation check
7.4 1 Terminal board supply check
7.5 1 Starter relay operation check
7.6 1 Electronic card operation check
7.7 1 Recharge circuit check
7.8 1 Care and maintenance of the sealed battery
7.9 1 Engine coil check
7.10 0 Fitting safety microswitches
7.11 1 Electrical diagrams
8. Technical specications
8.1 1 Tightening torques and adjustments summary
8.2 0 Belts assembly
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GENERAL INDEX
1. Rules and procedures for Service Centres
1.1 0 Identication and procedures
2. General and safety regulations
2.1 0 Safety regulations
2.2 0 Tools
2.3 0 Lifting and lower accessibility
2.4 0 Practical hint
3. Maintenance
3.1 1 Criteria for maintenance
4. Adjustments and tuning
4.1 1 Adjusting the engagement and checking the blade brake
4.2 1 Brake adjustment
4.3 1 Drive belt adjustment
4.4 2 Regulating the drive lever engagement cable
4.5 1 Drive pedal adjustment
4.6 1 Aligning the cutting deck
4.7 2 Check on blade alignment
4.8 1 Removing, sharpening and balancing the blade
MJ66 MJ66-Hy
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MJ66 SD
MJ66-Hy
MJ66 SD-Hy
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ii.0
INTRODUCTION
This manual has been compiled to help Service Centres
with the maintenance, dismantling and repair of the fol-
lowing versions of the MJ66 lawn-tractor:
– with mechanical transmission with gear box (MJ
66);
– with hydrostatic transmission (MJ66-Hy).
Warns of operations that should be carried
out with utmost care to avoid injury to the ope
ra tor.
Reference to another procedure or part of the
manual.
This symbol highlights all those operations that
require dierent working methods depen ding
on the type of machine, subsequent modi ca 
tions or accessories tted.
NOTE
Whenever a reference is made to a position on the ma-
chine “front”, “back”, “left” or “right” hand side, this is
determined by facing the direction of forward travel.
The manual has left out the simplest and quickest op-
erations that can be handled by a good mecha nic, while
concentrating more on specic aspects and the best
servicing procedures.
You are asked to read through this manual to ac quire a
basic understanding of the machine, which is necessary
for working rationally without making er rors or wasting
time.
All problems related to use are fully covered in the user
manual.
Each page of this manual states the following informa-
tion:
A) Machine or machine series to which the page ap plies.
• Mechanical drive models:
MJ66
= MJ 66 (rear discharge
and multi-function)
• Hydrostatic drive models:
MJ66-Hy
= MJ 66 Hydro (rear discharge
and multi-function)
B) Page number, specically:
– the rst two gures separated by a point indicate
the section and the chapter
– the third gure indicates the modication in dex.
C) Temporary validity of the page, with reference to the
year of manufacture or serial numbers.
D) Page number and total number of pages dedicated
to the subject.
The manual refers to the following symbols:
Warns of operations that should be carried
out with utmost care to avoid impairing the
functionality and safety of the lawnmower.
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MAP
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5.3.1
REMOVAL
OF THE WHEEL COVER
NOTE - The wheel cover has two dierent connected
parts which must be dismantled in the sequence
shown.
A) Rear
Unscrew the tank cap (1) and remove the fuel guard
(2).
The rear part (3) of the wheel cover is xed to the
frame by:
– 2 screws (4) in the space under the seat;
– 2 rear screws (5).
Fixing the wheel cover’s rear part (3) is completed by
5 screws (6) on the rear plate.
NOTE - Removing the rear part (3) is facilitated by
widening the two side elements slightly and lifting the
rear part just enough to disconnect the three ns (7).
General informations
You need to remove the wheel cover completely
to replace it, to remove the engine and tank and to
access the seat’s micro-switch, placed under the
cross-piece supporting the two springs.
Related topics
[ 6.8] Replacing the accelerator
MODEL YEAR 2015 MJ66-Hy
MJ66
WORKSHOP MANUAL
MJ66 MJ66-Hy
ABD C
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MJ66
MJ66 SD
MJ66-Hy
MJ66 SD-Hy
WORKSHOP MANUAL
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MAP OF INTERVENTIONS
ENGINE  FUEL TANK TRANSMISSION  BRAKE  WHEELS CUTTING DECK
STEERING BODY ELECTRICAL SYSTEM
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iv.0
ENGINE  FUEL TANK
INDEX OF Related topics
Removal of external parts and main assemblies
Removal of the wheel cover .......................................................... [ 5.3]
Removal of the tank ........................................................................ [ 5.4]
Removal of the engine .................................................................... [ 5.5]
Repairs
Replacing the accelerator and adjusting the carburettor ................ [ 6.7]
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iv.0
TRANSMISSION  BRAKE
WHEELS
INDEX OF Related topics
Adjustments and tuning
Brake adjustment ............................................................................ [ 4.2]
Drive belt adjustment ...................................................................... [ 4.3]
Regulating the drive lever engagement cable ................................ [ 4.4]
Drive pedal adjustment ( hydrostatic drive models) .................... [ 4.5]
Removal of external parts and main assemblies
Removal of steering column covers ............................................... [ 5.1]
Removal of the side guards ............................................................ [ 5.2]
Removal of the wheel cover ........................................................... [ 5.3]
Removal of the rear axle
( mechanical drive models) ......................................................... [ 5.6]
Removal of the rear axle
( hydrostatic drive models) ........................................................ [ 5.6a]
Removing the lower part of the rear plate ....................................... [ 5.9]
Repairs
Replacement of tyres and wheels .................................................. [ 6.1]
Replacement of front wheel bearings ............................................. [ 6.2]
Replacement of the drive belt ......................................................... [ 6.4]
Brake cable replacement ................................................................ [ 6.9]
Replacing the drive engagement cable ........................................ [ 6.10]
Replacing and regulating the gear cable
( mechanical drive models) ...................................................... [ 6.12]
Replacement of the brake pads and disc ..................................... [ 6.13]
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iv.0
CUTTING DECK
INDEX OF Related topics
Adjustments and tuning
Adjusting the engagement and checking the blade brake .............. [ 4.1]
Aligning the cutting deck ................................................................ [ 4.6]
Check on blade alignment .............................................................. [ 4.7]
Removing, sharpening and balancing the blade ............................ [ 4.8]
Removal of external parts and main assemblies
Removal of the side guards ............................................................ [ 5.2]
Removal of the cutting deck ........................................................... [ 5.7]
Removal of the discharge conveyor ............................................... [ 5.8]
Repairs
Replacement of the drive belt ......................................................... [ 6.4]
Replacement of the support and shaft of the blade ........................ [ 6.5]
Replacement of the lifting cable ..................................................... [ 6.8]
Replacing the blade engagement cable ....................................... [ 6.11]
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iv.0
STEERING
INDEX OF Related topics
Adjustments and tuning
---
Removal of external parts and main assemblies
Removal of steering column covers ............................................... [ 5.1]
Repairs
Disassemble the steering column and replace bushes .................. [ 6.6]
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iv.0
BODY
INDEX OF Related topics
Removal of external parts and main assemblies
Removal of steering column covers ............................................... [ 5.1]
Removal of the side guards ............................................................ [ 5.2]
Removal of the wheel cover ........................................................... [ 5.3]
MODEL YEAR 2015 MJ66-Hy
MJ66
WORKSHOP MANUAL
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