Wacker Neuson 28z3 Track Excavator Service Manual
192 pages · Publication 1000178347
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- Models
- 28z3
- Manual type
- Service Manual
- Pages
- 192
- Publication
- 1000178347
- Condition
- Brand new
What's inside
From the manual's own table of contents: 48 sections, 217 entries. See sample pages (PDF, 765 KB)
General55 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 overview
- Instrument panel legend
- Engine compartment: overview
- Chassis overview
- Valve compartment
- Overview of open engine and valve compartment
- Chassis
- Engine
- Fuel injection pump
- Engine capacities
- Engine tightening torques
- Hydraulic system
- Work hydraulics
- Auxiliary hydraulics oil flows 28Z3
- Undercarriage and swivel unit
- Stabiliser blade
- Electric system
- Fuse box
- 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 28Z3
- Lift capacity table 28Z3
- Lift capacity table 28Z3 long stick (option)
- Lift capacity table 28Z3 extra weight (option)
- Lift capacity table 28Z3 long stick (option) and extra weight (option)
- Kinematics
- Attachments
- Fluids and lubricants
- Additional oil change and filter replacement (hydraulics)
- Maintenance label
- Explanation of symbols on the maintenance label
- Maintenance plan (overview)
- Service package
- Introduction
- Fuel system
- Specific safety instructions
- Refuelling
- Emptying the fuel tank
- Stationary fuel pumps
- Diesel fuel specification
- Bleeding the fuel system
- 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-belt2 topics
- Checking V-belt tension
- Retightening the V-belt
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 work5 topics
- Lubrication points on the swivelling console
- Boom lubrication points
- Lubrication points on the stick
- Lubrication strip
- Maintenance of attachments
Electric system55 topics
- 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
- 3TNV76-NNS engine overview
- Checking and adjusting valve tip clearance
- Tightening order for cylinder head bolts
- Checking the injection nozzles
- Pressure check
- Checking the nozzle jet
- Injection time
- Checking and adjusting 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 trouble
- Hydraulic pump PVD-0B-23BP-8G3-5083A
- Pump unit: exploded view
- Pilot oil supply unit
- Main valve block
- Ports
- Legend
- Main valve block diagram
- Pressure limiting valves
- Pump assignment
- Drive counterbalancing system
- Pump assignment for drive counterbalancing
- Regeneration – stick section
- Bucket pre-tension
- Flow rate adjustment of auxiliary hydraulics
- Pilot valves
- Joystick
- Pilot valve (driving)
- Pilot valve for auxiliary hydraulics
- Changeover valve for SAE/ISO controls (option)
- Proportional valve (option)
- Travelling drive
- Function
- Swivel unit
- Swivel unit brake
- Swivel joint
- Sealing
Relays1 topic
- Use, mode of function
Show all 49 sections
Counterweight1 topic
- Specifications
Safe load indicator DE (safety valve for boom)3 topics
- Position
- Setting the pressure switch
- Wiring diagram
Safe load indicator FR (safety valves for boom and stick)22 topics
- Safety feature “Hose burst valve” (option)
- Quickhitch facility (option)
- Safe load indicator (option)
- 3rd control circuit
- Diagram
- Drive interlock (antitheft protection)
- Disabling the drive interlock
- Enabling the drive interlock
- Programming
- Proportional controls
- Measures to be taken in case of malfunctions
- Left-hand side control lever
- Boom swivel controls
- Auxiliary hydraulics
- Hammer operation
- Adjusting control response
- Characteristic curves – status display
- Wiring harness
- Control valve plug assignment
- Safety features
- Diagnosis display
- Service valve
Inside this manual
Real pages from this service manual (192 pages). Open the sample pages (PDF, 763 KB)
- Specifications, page 40: SERV-HB 28Z3 EN – Edition 1.0 * 28z3s210.fm
- Troubleshooting, page 134: SERV-HB 28Z3 EN – Edition 1.0 * 28z3s510.fm
- Diagram, page 150: SERV-HB 28Z3 EN – Edition 1.0 * 28z3s611.fm
- Color page, page 112: SERV-HB 28Z3 EN – Edition 1.0 * 28z3s510.fm
- Color page, page 22: SERV-HB 28Z3 EN – Edition 1.0 * 28z3s110.fm
- Foldout diagram (color), page 141: Hydraulic system
Other manuals for this machine
Save 10% on 2 manuals, 15% on 3 or more. Other manuals for the 28z3 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, 192 pages
Quantity one is the manual described above.
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Questions about model, serial number, engine coverage or contents? Contact us before purchasing and we'll help confirm it's the right manual. Please verify the manual type, machine model, serial number range and engine coverage before purchasing: manuals ordered in error carry a 20% restocking fee (return policy).