Wacker Neuson 50z3 Track Excavator Service Manual
262 pages · Publication 1000129833
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- Models
- 50z3
- Manual type
- Service Manual
- Pages
- 262
- Publication
- 1000129833
- Condition
- Brand new
What's inside
From the manual's own table of contents: 52 sections, 264 entries. See sample pages (PDF, 697 KB)
General51 topics
- Important information on this service manual
- Identification of warnings and dangers
- Designated use and exemption from liability
- Type labels and component numbers
- Machine: overview
- Cab overview
- Cab (legend)
- Instrument panel up to serial no. AC02877: overview
- Instrument panel up to serial no. AC02877: legend
- Instrument panel from serial no. AC02893 to serial no. AD07125: overview
- Instrument panel from serial no. AC02893 to serial no. AD07125: legend
- Control elements 50Z3 (from serial no. AH00579)
- Engine compartment up to serial no. AD07125: overview
- Engine compartment (from serial no. AH00579): overview
- Chassis overview
- Tilting the cab
- Summer/winter operation
- Preheated fresh air
- Turning the auxiliary hydraulics/boom swivel pedal around
- Chassis
- Engine
- Fuel injection pump
- Engine capacities
- Engine tightening torques
- Hydraulic system
- Auxiliary hydraulics oil flow
- Screwable hose burst valve
- Undercarriage and swivel unit
- Stabiliser blade
- Electric system
- Fuse box in instrument panel
- Main fuse box with relays underneath the cab
- Relays
- Noise levels
- Vibration
- Coolant compound table
- Model-specific tightening torques
- General tightening torques
- Tightening torques for hydraulic screw connections (dry assembly)
- Tightening torques for high-resistance screw connections
- Dimensions model 50Z3
- Lift capacity table 50Z3
- Lift capacity table 50Z 3 with long stick
- Lift capacity table 50Z 3 with counterweight
- Lift capacity table 50Z 3 with long stick and counterweight
- Kinematics
- Attachments
- Fluids and lubricants
- Additional oil change and filter replacement (hydraulics)
- Maintenance label
- Explanation of symbols on the maintenance label
Service package2 topics
- Up to serial no.: AD07125
- From serial no.: AH00579
Fuel system8 topics
- Specific safety instructions
- Refuelling
- Stationary fuel pumps
- Diesel fuel specification
- Bleeding the fuel system
- Emptying the fuel tank
- Fuel prefilter with water separator
- Replacing the fuel filter
Engine lubrication system4 topics
- Checking the oil level
- Filling up engine oil
- Changing engine oil
- Replacing the engine oil filter cartridge
Cooling system2 topics
- Checking/filling up coolant
- Draining coolant
Air filter2 topics
- Replacing the filter
- Functional check once a week of the dust valve
V-belt4 topics
- Checking V-belt tension
- Retightening the V-belt
- Checking the V-belt of the air conditioning system
- Tightening the V-belt of the air conditioning system
Pressure check8 topics
- General
- Checking pilot control pressure
- Pressure check of variable displacement pump P1
- Pressure check of variable displacement pump P2
- Pressure check of gear pump P3
- Secondary pressure limiting valve of the gear motor
- Measuring ports: overview
- Primary pressure limiting valves
Hydraulic system5 topics
- Checking the hydraulic oil level
- Filling up hydraulic oil
- Changing hydraulic oil
- Monitoring the hydraulic oil reflux filter
- Checking hydraulic pressure lines
Travelling drive2 topics
- Checking the oil level and filling up oil
- Draining oil
Chains2 topics
- Checking chain tension
- Setting the chains
Lubrication work40 topics
- Lubrication points on the swivelling console
- Boom lubrication points
- Lubrication points on the stick
- Lubrication strip
- Maintenance of attachments
- Service and maintenance work at regular intervals
- Instructions concerning specific components
- Alternator
- Battery
- Replacing the cab filter
- General maintenance work
- Cleaning
- General instructions for all areas of the machine
- Inside the cab
- Exterior of the machine
- Engine compartment
- Screw connections and attachments
- Pivots and hinges
- Engine 4TNV88-PNS (up to serial no. AD07125): overview
- Fuel system
- Checking and adjusting valve clearance
- Tightening order for cylinder head bolts
- Checking the injection nozzles
- Pressure check
- Checking the nozzle jet
- Injection time
- Checking injection time
- Setting injection time
- Replacement of fuel injection pump
- Adjusting engine revs
- Compression
- Checking the coolant thermostat
- Checking the thermal switch
- Oil pressure switch
- Checking the coolant circuit
- Engine 4TNV88-PNS (from serial no. AH00579): overview
- Removing the valve cover
- Engine trouble
- Pump unit: exploded view
- Pilot oil supply unit
Main valve block5 topics
- Ports
- Legend
- Main valve block diagram
- Pressure limiting valves
- Pump assignment
Drive counterbalancing system1 topic
- Pump assignment for drive counterbalancing
Pilot valves4 topics
- Joystick
- Pilot valve (driving)
- Pilot valve for auxiliary hydraulics
- Pilot valve for stabiliser blade
Valves6 topics
- 7/2 directional valve (changeover valve)
- 4/3 directional valve
- Shuttle valve block
- Changeover valve for SAE/ISO controls (option)
- Function
- 2nd speed range function
Swivel unit1 topic
- Parking brake/multidisc brake function
Show all 53 sections
Relays1 topic
- Use, mode of function
Joystick tip switches51 topics
- Joystick (left)
- Joystick (right)
- Instrument panel overview
- Switch overview (up to serial no. AD07125)
- Switch overview (from serial no. AH00579)
- Starter
- Wiring diagram A4 legend up to serial no. AC02889
- Wiring diagram A4 up to serial no. AC02889
- Wiring diagram A4 legend from serial no. AC02890
- Wiring diagram A4 from serial no. AC02890
- Engine – chassis wiring harness A4 (legend)
- Engine – chassis wiring harness A4
- Wiring harness 1000109630 switches A4 up to serial no. AC02889: legend
- Wiring harness 1000109630 switches A4 up to serial no. AC02889
- Wiring harness switches A4 from serial no. AC02890 (legend)
- Wiring harness switches A4 from serial no. AC02890
- Cab roof wiring harness
- Armrest wiring harness
- Boom working light wiring harness
- Wiring diagram A3 up to serial no. AC02889 (legend)
- Wiring diagram A3 up to serial no. AC02889
- Wiring diagram A3 legend from serial no. AC02890
- Wiring diagram A3 from serial no. AC02890
- Engine – chassis wiring harness A3 (legend)
- Engine – chassis wiring harness A3
- Wiring harness 1000109630 switches A3 up to serial no. AC02889 (legend)
- Wiring harness 1000109630 switches A3 up to serial no. AC02889
- Wiring harness switches A3 from serial no. AC02890 (legend)
- Wiring harness switches A3 from serial no. AC02890
- Cab roof wiring harness A3
- Armrest wiring harness A3
- Boom working light wiring harness A3
- Air conditioning
- Specifications
- Installation overview
- Components
- Filling up the air conditioning system
- Maintenance
- Troubleshooting
- Air-suspension seat
- Counterweight
- Long stick
- Control circuit (pipework) connections for grab
- 3rd control circuit connections
- Auxiliary hydraulics connections
- Quickhitch couplings
- Fuel-filling pump
- Central lubrication system
- Position
- Adjusting breaks and lubrication times
- Repair in case of clogging
Safe load indicator D (safety valve for boom)1 topic
- Wiring diagram
3rd control circuit1 topic
- Diagram
Drive interlock (antitheft protection)3 topics
- Disabling the drive interlock
- Enabling the drive interlock
- Programming
Automatic idling speed feature1 topic
- Wiring harness
Proportional controls6 topics
- Overview
- Control unit
- Control valve plug assignment
- Safety features
- Measures to be taken in case of malfunctions
- Diagnosis display
Automatic revs setting (Tier 3A from AH00579)1 topic
- Installation
Inside this manual
Real pages from this service manual (262 pages). Open the sample pages (PDF, 696 KB)
- Specifications, page 45: SERV-HB 50Z3 EN – Edition 2.0 * 5003s210.fm
- Repair procedure, page 113: SERV-HB 50Z3 EN – Edition 2.0 * 5003s410.fm
- Diagram, page 205: Electric system
- Color page, page 140: SERV-HB 50Z3 EN – Edition 2.0 * 5003s510.fm
- Color page, page 26: SERV-HB 50Z3 EN – Edition 2.0 * 5003s110.fm
- Foldout diagram (color): Hydraulic system
Other manuals for this machine
Save 10% on 2 manuals, 15% on 3 or more. Other manuals for the 50z3 are listed below. Editions cover different serial number ranges: check the serial coverage and tick only the ones that match your machine.
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This is a service manual
Here's how it compares to the other manual types.
Service manual
Factory repair procedures and technical information such as specifications, troubleshooting, and wiring and hydraulic diagrams, for the models and systems the manual covers. See What's inside for its topics.
Operator's manual
Safe operation, controls, maintenance schedules, lubrication points, inspections, and basic checks. Repair procedures are in the service manual.
Parts manual
Illustrated diagrams with factory part numbers for identifying components and ordering parts. Repair procedures are in the service manual.
Engine service manuals are sometimes sold separately, since certain machine models were offered with more than one engine option.
What it's used for
Factory manual for in-house farm and construction shop use. Straightforward, complete, and easy to follow. It contains the OEM information dealership service departments and parts counters use to diagnose problems, identify components, and perform maintenance or repairs correctly.
Service shops and owner/operators who repair their own equipment
Identifying correct parts and seeing how assemblies come apart and go back together
Keeping equipment running with less downtime
Factory manual, 262 pages
Quantity one is the manual described above.
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