This workshop service repair manual covers the Wacker Neuson 2503, 3003, 3503, and 3703 compact excavators. These machines are engineered for reliability and performance, featuring a robust Kubota 3-cylinder, 4-stroke, water-cooled diesel engine with a displacement of 1393 cc. The hydrostatic drive system, including the travelling drive and drive counterbalancing system, ensures efficient power transfer. The hydraulic system is comprehensive, incorporating main valve blocks, pilot valves, swivel units, and auxiliary hydraulics connections, supported by detailed diagrams. The electrical system includes various relays, sockets, switches, and wiring harnesses, alongside advanced features like proportional controls, an air conditioning system, and an air-suspension seat.
This manual provides essential information for maintaining and repairing your Wacker Neuson compact excavator. It details procedures for engine servicing, including adjusting valve clearance, checking injection nozzles, and setting injection timing. Coverage extends to the fuel system, coolant circuit, and oil pressure switch. Transmission and hydraulic system maintenance are thoroughly explained, with specific attention to components like the travelling drive and main valve block. Troubleshooting guidance for engine issues is included, alongside information on the electrical system and optional features such as the central lubrication system. This resource is designed to assist owners, mechanics, and technicians in keeping their equipment in optimal working condition.
WACKER NEUSON 2503 3003 3503 3703 COMPACT EXCAVATOR WORKSHOP SERVICE REPAIR MANUAL
ENGINE COVERED:
1393 cc 3-CYLINDER, 4-STROKE, WATER-COOLED, KUBOTA DIESEL ENGINE
CONTENTS:
OPERATION
SPECIFICATIONS
MAINTENANCE
ENGINE
FUEL SYSTEM
ADJUSTING VALVE CLEARANCE
CHECKING THE INJECTION NOZZLES
INJECTION TIME
FUEL INJECTION PUMP
COOLANT CIRCUIT
OIL PRESSURE SWITCH
ENGINE TROUBLE
HYDRAULIC SYSTEM
MAIN VALVE BLOCK
DRIVE COUNTERBALANCING SYSTEM
PILOT VALVES-VALVES
TRAVELLING DRIVE
SWIVEL UNIT-SWIVEL JOINT
BREATHER FILTER
HYDRAULICS DIAGRAM A4
OPTIONS DIAGRAM
ELECTRIC SYSTEM
RELAYS-SOCKET
JOYSTICK TIP SWITCHES
INSTRUMENT PANEL
ENGINE-CHASSIS WIRING HARNESS
CAB ROOF WIRING HARNESS
AIR CONDITIONING
AIR-SUSPENSION SEAT
COUNTERWEIGHT-LONG STICK
CONTROL CIRCUIT CONNECTIONS
AUXILIARY HYDRAULICS CONNECTIONS
CENTRAL LUBRICATION SYSTEM
SAFE LOAD INDICATOR
ELECTRIC AUXILIARY HYDRAULICS
DRIVE INTERLOCK (ANTITHEFT PROTECTION)
AUTOMATIC IDLING SPEED FEATURE
PROPORTIONAL CONTROLS
This is a very comprehensive manual (DOWNLOAD in PDF format) for WACKER NEUSON 2503 3003 3503 3703 EXCAVATOR, Features detailed exploded views. This is the same manual that technicians use to fix your vehicles. Manual covers detailed and complete step-by-step written procedures with pictures and diagrams, fully printable-selected pages or whole manual, illustrated. So, you will not be disappointed. This is the manual for Repairs, Maintenance & servicing.
WACKER NEUSON 2503 3003 3503 3703 COMPACT EXCAVATOR WORKSHOP SERVICE REPAIR MANUAL
ENGINE COVERED:
1393 cc 3-CYLINDER, 4-STROKE, WATER-COOLED, KUBOTA DIESEL ENGINE
CONTENTS:
OPERATION
SPECIFICATIONS
MAINTENANCE
ENGINE
FUEL SYSTEM
ADJUSTING VALVE CLEARANCE
CHECKING THE INJECTION NOZZLES
INJECTION TIME
FUEL INJECTION PUMP
COOLANT CIRCUIT
OIL PRESSURE SWITCH
ENGINE TROUBLE
HYDRAULIC SYSTEM
MAIN VALVE BLOCK
DRIVE COUNTERBALANCING SYSTEM
PILOT VALVES-VALVES
TRAVELLING DRIVE
SWIVEL UNIT-SWIVEL JOINT
BREATHER FILTER
HYDRAULICS DIAGRAM A4
OPTIONS DIAGRAM
ELECTRIC SYSTEM
RELAYS-SOCKET
JOYSTICK TIP SWITCHES
INSTRUMENT PANEL
ENGINE-CHASSIS WIRING HARNESS
CAB ROOF WIRING HARNESS
AIR CONDITIONING
AIR-SUSPENSION SEAT
COUNTERWEIGHT-LONG STICK
CONTROL CIRCUIT CONNECTIONS
AUXILIARY HYDRAULICS CONNECTIONS
CENTRAL LUBRICATION SYSTEM
SAFE LOAD INDICATOR
ELECTRIC AUXILIARY HYDRAULICS
DRIVE INTERLOCK (ANTITHEFT PROTECTION)
AUTOMATIC IDLING SPEED FEATURE
PROPORTIONAL CONTROLS
This is a very comprehensive manual (DOWNLOAD in PDF format) for WACKER NEUSON 2503 3003 3503 3703 EXCAVATOR, Features detailed exploded views. This is the same manual that technicians use to fix your vehicles. Manual covers detailed and complete step-by-step written procedures with pictures and diagrams, fully printable-selected pages or whole manual, illustrated. So, you will not be disappointed. This is the manual for Repairs, Maintenance & servicing.
