Wacker Neuson 28Z3 Track Excavator Service Manual 1000178347 PDF

Description

Wacker Neuson 28Z3 Track Excavator Service Manual 1000178347 – PDF DOWNLOAD

FILE DETAILS:

Wacker Neuson 28Z3 Track Excavator Service Manual 1000178347 – PDF DOWNLOAD 

Language : English
Pages : 192
Downloadable : Yes
File Type : PDF

IMAGES PREVIEW OF THE MANUAL:

DESCRIPTION:

Wacker Neuson 28Z3 Track Excavator Service Manual 1000178347 – PDF DOWNLOAD 

Important information on this service manual:

• This service manual contains important information on how to service your machine safely,
  correctly and economically. Therefore, it aims not only at new operators, but it also serves
  as a reference for experienced ones. It helps to avoid dangerous situations and reduce
  repair costs and downtimes. Furthermore, the reliability and the service life of the machine
  will be increased by following the instructions in the service manual.
• Careful and prudent working is the best way to avoid accidents!
• Operational safety and readiness of the machine do not only depend on your skill, but also
  on maintenance and servicing of the machine.
• Insist on using original spare parts when carrying out maintenance and repair work. This
  ensures operational safety and readiness of your machine, and maintains its value.
  will be pleased to answer any further questions regarding the machine or the service manual.
  Your Neuson dealer.

TABLE OF CONTENTS:

Wacker Neuson 28Z3 Track Excavator Service Manual 1000178347 – PDF DOWNLOAD 

Operation
Important information on this service manual 1-1
Identification of warnings and dangers 1-2
Designated use and exemption from liability 1-3
Type labels and component numbers 1-4
Machine overview 1-6
Cab overview 1-7
Cab: legend 1-8
Instrument panel overview 1-9
Instrument panel legend 1-10
Engine compartment: overview 1-11
Chassis overview 1-12
Valve compartment 1-13
Overview of open engine and valve compartment 1-14
Specifications
Chassis 2-1
Engine 2-1
Fuel injection pump 2-2
Engine capacities 2-2
Engine tightening torques 2-2
Hydraulic system 2-2
Work hydraulics 2-2
Auxiliary hydraulics oil flows 28Z3 2-3
Undercarriage and swivel unit 2-3
Stabiliser blade 2-3
Electric system 2-3
Fuse box 2-4
Noise levels 2-5
Vibration 2-5
Coolant compound table 2-5
Model-specific tightening torques 2-6
General tightening torques 2-6
Tightening torques for hydraulic screw connections (dry assembly) 2-6
Tightening torques for high-resistance screw connections 2-8
Dimensions model 28Z3 2-9
Lift capacity table 28Z3 2-10
Lift capacity table 28Z3 long stick (option) 2-11
Lift capacity table 28Z3 extra weight (option) 2-12
Lift capacity table 28Z3 long stick (option) and extra weight (option) 2-13
Kinematics 2-14
Attachments 2-15
Maintenance
Fluids and lubricants 3-1
Additional oil change and filter replacement (hydraulics) 3-2
Maintenance label 3-3
Explanation of symbols on the maintenance label 3-3
Maintenance plan (overview) 3-5
Service package 3-9
Introduction 3-9
Fuel system 3-10
Specific safety instructions 3-10
Refuelling 3-10
Emptying the fuel tank 3-11
Stationary fuel pumps 3-12
Table of contents
I-2 SERV-HB 28Z3 EN – Edition 1 0 * 28z3s1_0IVZ fm
Table of contents
Diesel fuel specification 3-12
Bleeding the fuel system 3-12
Water separator 3-13
Replacing the fuel filter 3-13
Engine lubrication system 3-14
Checking the oil level 3-14
Filling up engine oil 3-15
Changing engine oil 3-16
Replacing the engine oil filter cartridge 3-17
Cooling system 3-18
Specific safety instructions 3-18
Checking / filling up coolant 3-19
Draining coolant 3-20
Air filter 3-21
Replacing the filter 3-22
Functional check once a week of the dust valve 3-23
V-belt 3-24
Checking V-belt tension 3-24
Retightening the V-belt 3-25
Pressure check 3-26
General 3-26
Checking pilot control pressure 3-26
Pressure check of variable displacement pump P1 3-27
Pressure check of variable displacement pump P2 3-28
Pressure check of gear pump P3 3-29
Secondary pressure limiting valve of the gear motor 3-30
Measuring ports: overview 3-30
Primary pressure limiting valves 3-31
Test report 3-32
Hydraulic system 3-34
Specific safety instructions 3-34
Checking the hydraulic oil level 3-35
Filling up hydraulic oil 3-36
Changing hydraulic oil 3-36
Monitoring the hydraulic oil reflux filter 3-37
Checking hydraulic pressure lines 3-38
Travelling drive 3-39
Checking the oil level and filling up oil 3-39
Draining oil 3-39
Chains 3-40
Checking chain tension 3-40
Setting the chains 3-41
Lubrication work 3-42
Stabiliser blade 3-42
Lubrication points on the swivelling console 3-42
Boom lubrication points 3-43
Lubrication points on the stick 3-43
Lubrication strip 3-44
Maintenance of attachments 3-44
Electric system 3-45
Specific safety instructions 3-45
Service and maintenance work at regular intervals 3-45
Instructions concerning specific components 3-46
Alternator 3-46
Battery 3-47
Cab 3-48
Replacing the cab filter 3-48
SERV-HB 28Z3 EN – Edition 1 0 * 28z3s1_0IVZ fm I-3
Table of contents
General maintenance work 3-49
Cleaning 3-49
General instructions for all areas of the machine 3-49
Inside the cab 3-50
Exterior of the machine 3-50
Engine compartment 3-50
Screw connections and attachments 3-50
Pivots and hinges 3-50
Engine
3TNV76-NNS engine overview 4-1
Fuel system 4-3
Checking and adjusting valve tip clearance 4-4
Tightening order for cylinder head bolts 4-4
Checking the injection nozzles 4-5
Pressure check 4-5
Checking the nozzle jet 4-5
Injection time 4-6
Checking and adjusting injection time 4-6
Replacement of fuel injection pump 4-7
Adjusting engine revs 4-8
Compression 4-8
Checking the coolant thermostat 4-8
Checking the thermal switch 4-9
Oil pressure switch 4-9
Checking the coolant circuit 4-10
Engine trouble 4-10
Hydraulic system
Hydraulic pump PVD-0B-23BP-8G3-5083A 5-1
Pump unit: exploded view 5-3
Pilot oil supply unit 5-4
Main valve block 5-5
Ports 5-5
Legend 5-6
Main valve block diagram 5-7
Pressure limiting valves 5-8
Pump assignment 5-9
Drive counterbalancing system 5-10
Pump assignment for drive counterbalancing 5-10
Regeneration – stick section 5-11
Bucket pre-tension 5-11
Flow rate adjustment of auxiliary hydraulics 5-12
Pilot valves 5-13
Joystick 5-13
Pilot valve (driving) 5-14
Pilot valve for auxiliary hydraulics 5-16
Changeover valve for SAE/ISO controls (option) 5-17
Proportional valve (option) 5-17
Travelling drive 5-18
Function 5-19
Swivel unit 5-21
Swivel unit brake 5-22
Swivel joint 5-25
Sealing 5-25
I-4 SERV-HB 28Z3 EN – Edition 1 0 * 28z3s1_0IVZ fm
Table of contents
Breather filter 5-26
Troubleshooting in the hydraulic system 5-27
Hydraulics diagram A4 5-28
Hydraulics diagram for options A4 5-29
Hydraulics diagram: legend 5-30
Hydraulics diagram 28Z3 A3 5-32
Hydraulics diagram for options 28Z3 A3 5-33
Main valve block diagram 28Z3 A3 5-34
Electric system
Ohm’s Law (current, voltage, resistance); power 6-1
Measuring equipment, measuring methods 6-1
Cable colour coding 6-3
Relays 6-3
Use, mode of function 6-3
Socket 6-3
Electric units 6-4
Fuse box 6-4
Switches: overview 6-5
Instrument panel legend 6-5
Alternator 6-6
Starter 6-6
Wiring diagram A4 28Z3: legend 6-8
Wiring diagram A4 6-9
Engine wiring harness: legend 6-10
Engine wiring harness A4 6-12
Cab wiring harness A4 6-13
Proportional controls A4 (option) 6-14
Wiring diagram A3: legend 6-17
Wiring diagram A3 6-18
Engine wiring harness A3: legend 6-19
Engine wiring harness A3 6-20
Cab wiring harness A3 6-21
Proportional controls A3 (option) 6-22
Options
Counterweight 7-1
Specifications 7-1
Long stick 7-1
Specifications 7-1
Grab pipework 7-2
Attachments 7-2
3rd control circuit connections 7-3
Auxiliary hydraulics connections 7-3
Safe load indicator DE (safety valve for boom) 7-4
Position 7-4
Setting the pressure switch 7-4
Function 7-5
Wiring diagram 7-5
Safe load indicator FR (safety valves for boom and stick) 7-6
Position 7-6
Setting the pressure switch 7-6
Function 7-7
Wiring diagram 7-8
SERV-HB 28Z3 EN – Edition 1 0 * 28z3s1_0IVZ fm I-5
Table of contents
Safety feature “Hose burst valve” (option) 7-9
Quickhitch facility (option) 7-10
Safe load indicator (option) 7-11
3rd control circuit 7-12
Function 7-12
Diagram 7-12
Drive interlock (antitheft protection) 7-13
Position 7-13
Disabling the drive interlock 7-13
Enabling the drive interlock 7-13
Programming 7-13
Proportional controls 7-15
Function 7-15
Ports 7-16
Measures to be taken in case of malfunctions 7-16
Left-hand side control lever 7-16
Boom swivel controls 7-17
Auxiliary hydraulics 7-17
Hammer operation 7-17
Adjusting control response 7-18
Characteristic curves – status display 7-18
Wiring harness 7-19
Control valve plug assignment 7-20
Safety features 7-21
Measures to be taken in case of malfunctions 7-21
Diagnosis display 7-21
Service valve 7-23
Function 7-23

S.V 02/01/2025