Locust Skid Steer L752 L753 L853 L903 L1203 Service Manual

Description

Table of contents
Preface

Conclusion

Hydraulic systems of machines
1.1 Hydraulic circuit of control
1.1.1 Wiring diagrams
1.1.2 Other elements of hydraulic circuit of control
1.1.2.1 Electrohydraulic valve ROX
1.1.2.2 Remote controller
1.1.2.3 Electrohydraulic valve of shovel levelling
1.1.2.4 Electrohydraulic valve of gearing
1.1.2.5 Electrohydraulic valve of AA section
1.1.2.6 Electrohydraulic control module (L1203)
1.1.3 Check and measurement of pressure
1.1.4 Possible malfunctions in hydraulic circuit
1.2 Hydraulic circuit of working equipment
1.2.1 Wiring diagrams
1.2.1.1 Quick couplers
1.2.2 Other elements of hydraulic circuit of working equipment
1.2.2.1 LOCUST 752
1.2.2.2 LOCUST 853, 903
1.2.2.3 LOCUST 1203
1.2.3 Check and adjustment of working pressure
1.2.4 Possible malfunctions in hydraulic circuit
1.3 Hydraulic circuit of travel
1.3.1 Wiring diagrams
1.3.2 Control pump A10VG45
1.3.3 Hydromotor MCR5
1.3.4 Check and adjustment of pressure
1.3.4.1 Directness of travel
1.3.5 Possible malfunctions in hydraulic circuit
2 Electric wiring
2.1 Wiring diagrams
2.2 Shovel levelling (L853, L903)
2.2.1 Means of sensoring
2.2.2 Adjustment of levelling system
2.3 Electrohydraulic control of section of auxiliary attachment
2.3.1 Check of valve operation
2.3.2 Distributor SM12, SX12 (load connection)
2.3.3 Control unit
2.3.4 Distributor SX14 (signal connection)
2.4 Gearing of the 2nd gear
2.5 Multifunctional electronic switch
2.5.1 Connection of adaptors
2.5.2 SB01 Multifunctional electronic substitution
3 Side gears
4 Oil specification
4.1 Engine oils
4.1.1 Viscosity classes
4.1.2 Load classes
4.1.3 Load classes for Diesel engines
4.2 Gear oils
4.2.1 Viscosity
4.2.2 Load classes
4.3 Hydraulic oils

Authorized service