Wacker Neuson WL28 Wheel loader Service Manual – PDF DOWNLOAD
IMAGES PREVIEW OF THE MANUAL:
DESCRIPTION:
Wacker Neuson WL28 Wheel loader Service Manual – PDF DOWNLOAD
Use of the service manual
- The purpose of this service manual is to help maintain the constant operation readiness of the machine. This ensures the high value of the machine through careful maintenance and after-sales monitoring. The experiences of our factory personnel and service technicians are summarized in this service manual.
- Every sequence of images shows the procedure of a repair process. The provided text contains necessary instructions for adjustment, application of special tools, etc. Major repair procedures are described in such a way that smaller subtasks can also be performed individually following the respective procedures. The manual is appended according to further technical
- development of the machines and therefore is kept up-to-date to serve as a reference. For reasons of safety and security, always compare the specified values and capacities with the latest Operator’s Manual of the respective machine. Technical data, dimensions and weights are only given as an indication. Responsibility for errors or omissions not accepted. Deviations of images are possible.
Information
Careful and prudent working is the best way to avoid accidents!
TABLE OF CONTENTS:
Wacker Neuson WL28 Wheel loader Service Manual – PDF DOWNLOAD
E Introduction
E1 Notice on this service manual E-1
Use of the service manual E-2
Explanation of symbols and abbreviations E-3
Repair instructions E-4
E2 Technical data E-5
Engine E-5
Permissible inclination E-5
Electrical system E-5
Axles E-5
Machine-travel hydraulics E-6
Operating hydraulics E-6
Brakes E-6
Tires E-7
Steering system E-7
Noise emissions E-7
Vibration E-8
Weights E-8
Payload/load-carrying capacity/axle load E-9
Dimensions E-10
E3 Tightening torques E-12
General tightening torques E-12
Specific tightening torques E-12
Torque values for metric coarse-pitch thread E-13
Torque values for metric fine-pitch thread E-14
Tightening torques for hydraulic screw connections and climate screw fixtures with taper
connections and O-rings DIN 3865 E-15
Tightening torques for hydraulic screw connections with cutting ring DIN 3861 E-16
Tightening torques for hydraulic screw struts SDS E-17
Tightening torques for hydraulics rotating threaded fittings E-20
Tightening torques for hollow screws DIN 7643 E-20
Tightening torques for adjustable hydraulic screw struts SDE E-21
Tightening torques for brake line threaded fittings E-23
Tightening torques for worm drive hose clamps E-23
Tightening torques for spring-loaded worm drive hose clamps E-23
E4 Safety instructions E-24
Pay particular attention to the following E-24
Safety symbols and signal words E-24
Safety and Accident Prevention Regulations E-25
Safety instructions for repair work E-26
Safety instructions for work on the engine E-29
Safety instructions for work on the hydraulic system E-30
Safety instructions for work on the air conditioning system E-32
Safety instructions for work on traveling drive and axles E-32
Safety instructions for work on the braking system E-32
Safety instructions for work on the frame E-32
Safety instructions for work on the electrical system E-34
Safety instructions for work on the wheels E-34
E5 Special tools E-35
Claws and extractors E-35
Clamp E-35
I-2 SHB WL28 * 10 * [en]
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B Operation
B1 Overview of control elements B-1
Control and display elements B-2
Indicating instruments B-3
Loader unit control lever B-4
Overview of switch panels B-5
B2 Indicator lights and warning lights (overview) B-6
1 Maintenance
11 Information on maintenance 1-1
Responsibilities and prerequisites 1-1
Safety instructions 1-1
Battery master switch 1-5
12 Maintenance overview 1-6
Daily/weekly maintenance 1-6
Inspection schedules 1-7
Inspection intervals 1-10
13 Lubrication plan 1-13
14 Fluids and lubricants 1-15
Fluids and lubricants (overview) 1-15
15 Maintenance accesses 1-16
Opening the engine cover 1-16
Raising the control stand sideways 1-16
16 Cleaning and maintenance 1-19
Information on cleaning and maintenance 1-19
Information on cleaning 1-20
General safety check 1-20
17 Lubrication work 1-21
Lubrication 1-21
Lubricating with the central lubrication system (option) 1-21
Central lubrication system diagram 1-24
Installing the high-pressure hoses on the central lubrication system 1-25
Instructions for troubleshooting in case of central lubrication system blocking 1-26
Repairing a blocking distributor of the central lubrication system 1-27
Troubleshooting table for central lubrication system 1-28
18 Fuel system 1-29
Information on the fuel system 1-29
Fuel system 1-30
Refueling with diesel fuel 1-30
Maintenance fuel filter 1-32
Replacing the fuel filter element 1-33
Replacing the fuel filter 1-35
Bleeding the fuel system 1-35
19 Engine lubrication system 1-36
Replace the engine oil and engine oil filter 1-36
110 Cooling system 1-37
Information on the cooling system 1-37
Information on the coolant 1-37
Checking/adding coolant 1-38
Checking the antifreeze mixture 1-38
Cleaning the cooling system 1-39
111 Air filter 1-40
Information on the engine air filter system 1-40
Engine air filter dust valve 1-40
Engine air filter 1-41
SHB WL28 * 10 * [en] I-3
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112 V-belt/toothed belt 1-43
Information on the V-belt 1-43
Checking the V-belt tension/tensioning the V-belt 1-44
113 Hydraulic system 1-45
Information on the hydraulic system 1-45
Change the ventilation filter 1-46
Information on hydraulic oil 1-47
Checking the hydraulic oil level 1-47
Adding hydraulic oil 1-48
Changing hydraulic oil 1-48
Replacing the hydraulic oil filter element 1-49
Replacing filter insert of high-pressure filter Z3 1-49
Bleeding the hydraulic system 1-50
114 Electrical system 1-51
Information on the electrical system 1-51
Fuses 1-51
Information on the battery 1-51
Removing the battery 1-52
Starting aid and jump-starting 1-54
115 Heating and ventilation 1-56
Heating maintenance 1-56
Maintenance of cabin breather filter 1-56
116 Washer system 1-57
Filling up the washer system reservoir (option) 1-57
117 Axles/travel drive 1-58
Check / change axle oil (axle with planetary drive) 1-58
Check / change axle oil (axle without planetary drive) 1-59
118 Braking system 1-61
Information on the braking system 1-61
119 Tires 1-62
Information on tires 1-62
Inflating the tires 1-63
Wheel change 1-64
120 Maintenance and servicing work on attachments 1-65
Information on attachments 1-65
121 Maintenance of options 1-66
Automatic trailer coupling 1-66
2 Engine
21 Perkins engine 404D-22 (357 kW) 2-1
Overview 2-2
Removing/installing the engine 2-5
22 Alternator 2-8
Removing the alternator V-belt 2-8
Removing the alternator 2-8
23 Starter 2-9
Removing/installing the starter 2-9
3 Cooling
31 Removing/installing the radiator 3-1
32 Removing/installing fan blades 3-3
I-4 SHB WL28 * 10 * [en]
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4 Travel drive
41 Traveling drive hose routing 4-1
42 Variable displacement pump 4-2
Overview 4-2
Pressures 4-3
Checking/adjusting the pressure cutoff 4-4
Checking/adjusting the inching 4-5
Checking/adjusting the starting speed 4-5
Checking low pressure (supply pressure) 4-6
Checking the high pressure of the variable displacement pump 4-6
Checking the setting pressure of the variable displacement pump 4-7
Checking/adjusting the mechanical zero position 4-8
Removing/installing the variable displacement pump 4-9
43 Variable displacement motor M20 4-12
Variable displacement motor screw connection (overview) 4-12
Checking and adjusting the control initiation of the variable displacement motor 4-13
Removing/installing the variable displacement motor 4-14
44 Hydraulic oil reservoir 4-16
Removing/installing the hydraulic oil reservoir 4-16
Removing/installing the return filter 4-18
Removing/installing the temperature switch 4-18
45 Removing/installing the cardan shaft 4-19
46 Removing/installing check valve V72 4-21
47 Troubleshooting 4-23
No forward or reverse travel 4-23
Machine travel starts too early 4-24
Machine travel starts too late 4-25
Severe engine droop 4-26
Not enough traction force 4-27
Travel speed is not reached 4-28
5 Axles
51 Front axle 5-1
Overview 5-1
Removing/installing the front axle 5-2
52 Rear axle 5-5
Overview 5-5
Removing/installing the rear axle 5-5
53 Type label – front/rear axle 5-9
6 Brake
61 Brake system overview 6-1
62 Removing/installing the brake pedal 6-2
63 Removing/installing the parking brake 6-3
64 Removing/installing the parking brake Bowden cable 6-4
65 Master brake cylinder 6-5
Overview 6-5
Removing/installing the master brake cylinder 6-6
7 Steering system
71 Steering orbitrol S4 7-1
Overview 7-1
Removing/installing the steering orbitrol 7-3
72 Removing/installing the steering wheel 7-5
73 Removing/installing the steering column 7-7
74 Removing/installing the steering column gas strut 7-8
75 Removing/installing steering cylinder A21 7-10
76 Checking the steering hydraulics 7-12
SHB WL28 * 10 * [en] I-5
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8 Work hydraulics
81 Overview 8-1
82 Hose routing lift and tilt rams 8-2
83 Gear pump P37 8-3
Overview 8-3
Checking the gear pump 8-3
Removing/installing the gear pump 8-5
84 Removing/installing lock cylinder A4 8-6
85 Removing/installing the lock pin 8-9
86 Removing/installing the tilt cylinder 8-10
87 Removing/installing the loader unit 8-12
88 Removing/installing the lift cylinder 8-15
89 Removing/installing the reversing lever / traction bar 8-17
Removing/installing the reversing lever 8-18
Removing/installing the traction bar 8-19
810 Removing/installing solenoid valve V30 8-20
811 Removing/installing the quickhitch 8-22
812 Removing/installing the control valve 8-23
813 Designation of hydraulic components 8-25
814 Hydraulic diagram – HDM19/4 8-27
815 Hydraulics diagram – HDM19/3 with HDS15/1 8-29
816 Hydraulic diagram – HDM19/3 8-31
817 Hydraulics diagram – HDM19/3 with SD11/1 8-33
818 Hydraulic diagram – HDM19/4 with rear hydraulics 8-35
819 Hydraulics diagram – HDM19/3 with SD11/1 8-37
9 Electrical system
91 Overview 9-1
92 Fuses 9-2
Fuse boxes 9-2
Fuse assignment 9-2
93 Joystick 9-4
Overview 9-4
Removing/installing the joystick 9-5
94 Removing/installing the battery master switch 9-6
95 Electrical diagram – power supply engine (FG01-01) 9-7
96 Electrical diagram – Instrument (FG02-01) 9-8
97 Electric diagram – Traveling drive, A6VM, parking brake (FG03-02) 9-9
98 Electrical diagram – Tool locking, horn (FG04-01) 9-10
99 Electric diagram – Lighting, cab and protective roof (FG05-01) 9-11
910 Electric diagram – Lighting, protective roof eps (FG05-02) 9-12
911 Electric diagram – Lighting 1 StVZO (FG06-01) 9-13
912 Electric diagram – Lighting 2 StVZO (FG06-02) 9-14
913 Electrical diagram – Turn indicator/horn (FG06-03) 9-15
914 Electric diagram – Electric connection 12V (FG07-01) 9-16
915 Electric diagram – 3-pole electric connection comfort (FG07-02) 9-17
916 Electric diagram – Window wiper for protective roof LK182 (FG08-02) 9-18
917 Electric diagram – Hydraulic control circuits, differential lock (FG09-01) 9-19
918 Electrical diagram – Electric lock block (FG10-01) 9-20
919 Electrical diagram – Loader unit stabilizer (FG11-01) 9-21
920 Electrical diagram – Operator’s seat comfort (FG12-01) 9-22
921 Electrical diagram – Telematics module (FG13-01) 9-23
922 Electric diagram – Cab 1 – Heater (FG15-01) 9-24
923 Electric diagram – Cab 2 – Window wiper (FG15-02) 9-25
924 Electric diagram – Cab 3 – Radio (FG15-03) 9-26
925 Designation of electrical components 9-27
Component list 9-27
Cable colors 9-31
10 Trim
101 Removing/installing the engine cover 10-1
102 Removing/installing the base plate / base weight 10-2
103 Installing / removing rear weight 10-3
11 Cab
111 Removing/installing the operator seat 11-1
112 Removing/installing the indicating instrument 11-2
113 Removing/installing the starter 11-3
114 Removing/installing the 12 V connector 11-5
115 Removing/installing the control lever console 11-7
116 Radio 11-8
Removing/installing the radio 11-8
Removing/installing the radio console 11-9
Removing/installing the loudspeakers 11-10
117 Removing/installing the armrest 11-11
118 Removing/installing the heating 11-12
119 Removing/installing the cabin 11-13
1110Removing/installing the base plate 11-16
12 Malfunctions
121 Towing a machine 12-1
Preparations for towing 12-1
Towing the machine 12-2
After towing 12-3
13 Installation position
131 Hydraulic system 13-1
V15 / V22 / V27 – Control valve 13-1
V30 – 2/2-directional valve (lock cylinder) 13-1
V35 – 6/2 directional valve (comfort steering) 13-2
V50 – Inching valve 13-2
V72 – Solenoid valve (differential lock) 13-3
V114 – Non-return valve 13-3
132 Electrical system 13-4
B006 – Temperature sensor engine 13-4
K001, K010, K026, K058, K061, K073, K136 – Relay 13-4
K021 – Relay differential lock 13-5
N003 – Preheating relay 13-5
S002 – Engine oil pressure switch 13-6
S005 – Hydraulic oil filter clogging pressure switch 13-6
S006 – Hydraulic oil temperature switch
VIDEO PREVIEW OF THE MANUAL:
PLEASE NOTE:
- This is not a physical manual but a digital manual – meaning no physical copy will be couriered to you. The manual can be yours in the next 2 mins as once you make the payment, you will be directed to the download page IMMEDIATELY.
- This is the same manual used by the dealers inorder to diagnose your vehicle of its faults.
- Require some other service manual or have any queries: please WRITE to us at [email protected]
S.M