mecalac 14 MBX User manual

HANDBOOK OF REPAIR
MANUFACTURER : “MECALAC SAS”

30750 14MBX
M1 1
Contents
1. Safety precautions ..................................................................................................................................3
2. Description of the machine ....................................................................................................................4
2.1 Central joint .....................................................................................................................................4
2.2 Stabilizers ........................................................................................................................................4
2.3 Rear chassis ....................................................................................................................................4
2.4 Transmission ...................................................................................................................................4
2.5 Turntable .........................................................................................................................................4
2.6 Cab ..................................................................................................................................................4
2.7 Controls ...........................................................................................................................................4
2.8 Seat .................................................................................................................................................4
2.9 Equipment .......................................................................................................................................4
2.10 Tool-holder .......................................................................................................................................5
3. Technical characteristics ........................................................................................................................7
3.1 Turbocharged engine ......................................................................................................................7
3.2 Axles ................................................................................................................................................7
3.3 Capacities ........................................................................................................................................7
3.4 Electrical system .............................................................................................................................7
3.5 Hydraulic system .............................................................................................................................8
4. Equipment’s travel curves ....................................................................................................................10
4.1 In back - hoe bucket position .........................................................................................................10
4.2 In loading bucket position ...............................................................................................................11
5. Table of stability loads in kg .................................................................................................................12
5.1 Lifting and handling in the longitudinal position with standard or telescopic stabilizers. ..............12
5.2 Lifting and handling in the longitudinal position without stabilizers ...............................................13
5.3 Lifting and handling in the transverse position with standard stabilizers ......................................14
5.4 Lifting and handling in the transverse position without stabilizers ................................................15
5.5 Lifting and handling in the transverse position with telescopic stabilizers ....................................16
6. Towing......................................................................................................................................................17
6.1 Disconnection of the hydrostatic travel .........................................................................................17
6.2 If the turntable is badly oriented ....................................................................................................18
7. Transporting the machine......................................................................................................................19
7.1 Loading on a trailer .......................................................................................................................19
7.2 Slinging for lifting ...........................................................................................................................20
8. Location of the hydraulic components ................................................................................................21
9. Hydraulic diagrams ...............................................................................................................................25
9.1 Travel circuit ...................................................................................................................................25
9.2 Accelerator, main and parking brake circuits .................................................................................26
9.3 Steering and slewing circuits..........................................................................................................27
9.4 Turntable supply and return circuit .................................................................................................28
9.5 Equipment pump, standard stabilizers and steering lock circuits ..................................................29
9.6 Boom, intermediate boom, dipper, offset and additional functions circuits ....................................30
9.7 Bucket circuit ..................................................................................................................................31
9.8 5-spool valve ..................................................................................................................................32
9.9 Additional hydraulic equipment for fitting of the hammer return on the equipment (option) ..........33
9.10 Tool-holder circuit (option) ..............................................................................................................34
9.11 Air conditioning circuit (option) .......................................................................................................35
9.12 Equipment pump, telescopic stabilizers and steering lock circuits (option) ...................................36
9.13 Fitting of 3 safety valves on the equipment (option) ......................................................................37
9.14 Fitting of 4 safety valves on the equipment (option) ......................................................................38
9.15 VOLVO tool-holder (option) ............................................................................................................39
10. Parts list of the hydraulic diagram .......................................................................................................41
11. Installation of the electric bundles ......................................................................................................43

12. Location of the electric components ...................................................................................................45
12.1 Solenoid-operated valves...............................................................................................................45
12.2 Relay / fuse box (under the cab seat) ...........................................................................................49
12.3 Electrical box (in the rear chassis section) ....................................................................................50
12.4 Air conditioning relays box (option) (under the cab floor) .............................................................50
13. Parts list of the electric diagram...........................................................................................................51
14. Adjustment procedure ...........................................................................................................................53
14.1 Adjustment Procedure for the Heat Engine ..................................................................................53
14.2 Hydraulic adjustment procedure for the gears ..............................................................................55
14.3 Direction adjustment procedure ....................................................................................................62
14.4 Hydraulic adjustment of the equipment .........................................................................................64
15. Control Sheet .........................................................................................................................................73
16. Tools ........................................................................................................................................................75
14MBX 30750
2M1

30750 14MBX
M1 3
1. Safety precautions
Throughout this book the symbol is used to draw your
attention to areas where special care is required, to prevent
accidents and injury.
•Construction sites are busy places, often with wet, muddy
ground, conditions which impede other workers ability to
avoid carelessly driven machinery. Skid-steers are designed
to be highly manoeuvrable and compact in operation. They
are rugged and can be operated under a variety of
conditions, and the operator may be presented with hazards
associated with operating this machine.
•Be vigilant and “think safety”.
•DO NOT operate this machine unless you have been
properly instructed on its control and safe operation.
•These operating instructions are designed to familiarise the
user with the machine and its designated use. The instruction
manual contains important information on how to operate the
machine safely, properly and most efficiently. Observing
these instructions help to avoid danger, to reduce repair
costs and down-time and to increase the reliability and life of
the machine.
•The operating instructions must always be available
wherever the machine is in use. These operating instructions
must be read and applied by any person in charge of carrying
out work with and on the machine, such as:
–care and disposal of fuels and consumables.
–maintenance (servicing, inspection, repair) and/or
transport.
•In addition to the operating instructions and to the mandatory
rules and regulations for accident prevention and
environmental protection in the country and place of use of
the machine, the general recognised technical rules for safe
and proper working must also be observed.