Service Manual Wacker Neuson 28Z3 Track Excavator;
Notices on this service manual
Identification of warnings and dangers
Designated use and exemption from liability
Type labels and component numbers
Instrument panel overview
Instrument panel legend
Overview of open engine and valve compartment
Engine compartment: overview
Stop and park the machine
Parking the machine on slopes
Engine tightening torques
Auxiliary hydraulics oil flow 28Z3
Undercarriage and swivel unit
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
Dimensions model 28Z3 VDS
Lift capacity table 28Z3 (short stick)
Lift capacity table 28Z3 long stick (option)
Lift capacity table 28Z3 short stick and extra weight (option)
Lift capacity table 28Z3 long stick (option) and extra weight (option)
Lift capacity table 28Z3 VDS (short stick)
Lift capacity table 28Z3 long stick VDS (option)
Fluids and lubricants
Oil grades for the diesel engine, depending on temperature
Additional oil change and filter replacement (hydraulic system)
Oil grades for the hydraulic system, depending on temperature
Explanation of symbols on the maintenance label
Maintenance plan (overview)
Safety-relevant parts
Emptying the fuel tank
Stationary fuel pumps
Diesel fuel specification
Bleeding the fuel system
Replacing the fuel filter
Tank for washer system
Engine lubrication system
Checking the oil level
Filling up engine oil
Replacing the engine oil filter cartridge
Engine and hydraulics cooling system
Specific safety instructions
Checking/filling up coolant
Checking the coolant level
Replacing air filter elements
Change cab air filter
Checking V-belt tension
Retightening the V-belt
Overview of measuring ports (up to serial number AG02712)
Overview of measuring ports (from serial number AG02713)
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
Primary pressure limiting valves
Checking the hydraulic oil level
Filling up hydraulic oil
Changing hydraulic oil
Monitoring the hydraulic oil return filter
Replacing the hydraulic oil filter
Draining condensation water from the hydraulic oil tank
Important information for the use of biodegradable oil
Checking hydraulic pressure lines
Checking the oil level and filling up oil
Checking track tension
Adjusting track tension
Maintenance of attachments
Overview of lubrication points
Lubrication points on the stabiliser blade and stabiliser blade ram
Lubrication points on the swivelling console and slewing ram
Lubrication points on the boom, bucket and stick rams
Lubrication points on the boom and stick
Lubrication point on the joint rod
Lubrication point on ball bearing race of live ring
Lubrication point of live ring teeth
Lubrication point of VDS live ring teeth
VDS lubrication points (option)
Powertilt lubrication points (option)
Lubrication points of hydraulic quickhitch (option)
Lubrication points of mechanical quickhitch (option)
Service and maintenance work at regular intervals
Instructions concerning specific components
General maintenance work
General instructions for all areas of the machine
Cleaning the seat belt
Exterior of the machine
Screw connections and attachments
Preparatory work before taking out of service
Maintenance if the machine is out of service for a longer period of time
Putting into operation again
3TNV76-NNS engine overview
Checking and adjusting valve clearance
Lapping the intake and exhaust valves
Tightening order for cylinder head bolts
Order for removing the cylinder-head bolts:
Order for mounting the cylinder-head bolts:
Checking the injection nozzles
Checking the nozzle jet
Checking injection time
Setting injection time
Removing and installing the injection pump
Removing the injection pump
Fitting the injection pump
Measuring and adjusting the engine speed
Checking the coolant thermostat
Checking the thermal switch
Checking the coolant circuit
Cleaning the cooling water channels
Coolant and fuel hoses
Replacing the glow plugs
Service Manual Wacker Neuson 28Z3 Track Excavator;
Notices on this service manual
Identification of warnings and dangers
Designated use and exemption from liability
Type labels and component numbers
Instrument panel overview
Instrument panel legend
Overview of open engine and valve compartment
Engine compartment: overview
Stop and park the machine
Parking the machine on slopes
Engine tightening torques
Auxiliary hydraulics oil flow 28Z3
Undercarriage and swivel unit
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
Dimensions model 28Z3 VDS
Lift capacity table 28Z3 (short stick)
Lift capacity table 28Z3 long stick (option)
Lift capacity table 28Z3 short stick and extra weight (option)
Lift capacity table 28Z3 long stick (option) and extra weight (option)
Lift capacity table 28Z3 VDS (short stick)
Lift capacity table 28Z3 long stick VDS (option)
Fluids and lubricants
Oil grades for the diesel engine, depending on temperature
Additional oil change and filter replacement (hydraulic system)
Oil grades for the hydraulic system, depending on temperature
Explanation of symbols on the maintenance label
Maintenance plan (overview)
Safety-relevant parts
Emptying the fuel tank
Stationary fuel pumps
Diesel fuel specification
Bleeding the fuel system
Replacing the fuel filter
Tank for washer system
Engine lubrication system
Checking the oil level
Filling up engine oil
Replacing the engine oil filter cartridge
Engine and hydraulics cooling system
Specific safety instructions
Checking/filling up coolant
Checking the coolant level
Replacing air filter elements
Change cab air filter
Checking V-belt tension
Retightening the V-belt
Overview of measuring ports (up to serial number AG02712)
Overview of measuring ports (from serial number AG02713)
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
Primary pressure limiting valves
Checking the hydraulic oil level
Filling up hydraulic oil
Changing hydraulic oil
Monitoring the hydraulic oil return filter
Replacing the hydraulic oil filter
Draining condensation water from the hydraulic oil tank
Important information for the use of biodegradable oil
Checking hydraulic pressure lines
Checking the oil level and filling up oil
Checking track tension
Adjusting track tension
Maintenance of attachments
Overview of lubrication points
Lubrication points on the stabiliser blade and stabiliser blade ram
Lubrication points on the swivelling console and slewing ram
Lubrication points on the boom, bucket and stick rams
Lubrication points on the boom and stick
Lubrication point on the joint rod
Lubrication point on ball bearing race of live ring
Lubrication point of live ring teeth
Lubrication point of VDS live ring teeth
VDS lubrication points (option)
Powertilt lubrication points (option)
Lubrication points of hydraulic quickhitch (option)
Lubrication points of mechanical quickhitch (option)
Service and maintenance work at regular intervals
Instructions concerning specific components
General maintenance work
General instructions for all areas of the machine
Cleaning the seat belt
Exterior of the machine
Screw connections and attachments
Preparatory work before taking out of service
Maintenance if the machine is out of service for a longer period of time
Putting into operation again
3TNV76-NNS engine overview
Checking and adjusting valve clearance
Lapping the intake and exhaust valves
Tightening order for cylinder head bolts
Order for removing the cylinder-head bolts:
Order for mounting the cylinder-head bolts:
Checking the injection nozzles
Checking the nozzle jet
Checking injection time
Setting injection time
Removing and installing the injection pump
Removing the injection pump
Fitting the injection pump
Measuring and adjusting the engine speed
Checking the coolant thermostat
Checking the thermal switch
Checking the coolant circuit
Cleaning the cooling water channels
Coolant and fuel hoses
Replacing the glow plugs
