mecalac 14 MBX, Handbook Of Repair

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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