PDF Service Manual Wacker Neuson 14504 Track Excavator - 6 MB
This comprehensive service manual provides all the technical details needed to service and repair the Wacker Neuson 14504 Track Excavator.
It is an essential guide for technicians, offering step-by-step instructions for troubleshooting, disassembly, and reassembly of all major components.
By using this manual, you can ensure repairs are done correctly, safely, and efficiently.
It covers everything from the hydraulic system to the engine, making it a complete resource for maintaining your excavator.
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--- Page 1 ---
Service Manual
Track excavator
Machine model 14504
Edition 1.3
Language en
Article number 1000263436
--- Page 3 ---
Table of contents
Wartung der Schnellkupplungen am H-Zylinder .................................................... 10-9
Nasenstützring der Kupplungsmuffe auswechseln .......................................... 10-9
Austausch von mit Seegerring gesicherten Schnellkupplungen .................... 10-10
Austausch von mit Nasenmutter gesicherten Schnellkupplungen ................. 10-11
Überprüfung des Geräterahmens ........................................................................ 10-12
Anlassen und Abstellen des Baggers bei Wartungsarbeiten ............................... 10-13
Fehlersuche und Fehlerbehebung ....................................................................... 10-14
Betriebsstörungen
Störungen am Motor .............................................................................................. 11-2
Störungen an der Hydraulik ................................................................................... 11-4
Störungen am Drehantrieb .................................................................................... 11-5
Motor dreht nicht .............................................................................................. 11-5
Falsche Drehrichtung ...................................................................................... 11-5
Anzahl der Umdrehungen entspricht nicht den Vorgaben ............................... 11-5
Bremskraft ist nicht ausreichend ..................................................................... 11-5
Motor dreht durch / rutscht .............................................................................. 11-6
Störungen an der Klimaanlage .............................................................................. 11-6
Fehlerquellen und Fehlersuche Kompressor ......................................................... 11-8
Fehlercode Betankungspumpe .............................................................................. 11-9
Störungen Betankungspumpe ............................................................................. 11-10
SHB 14504 en - Edition 1.3 * 14504s11IVZ.fm I-9
--- Page 4 ---
Operation
1.6 Cabin overview
20 22 23 21 16 8
11
19
12
17
1 8
2
8
15
7
4
3
13
24
14
27
31
6
5
32
25
10
18
9
8 33 29 28 26 30 8
SHB 14504 en – Edition 1.3 * 14504s110.fm 1-9
--- Page 6 ---
Technical data
Main data Model 14504 (rubber tracks)
Operating weight 15300 kg/(33730 lbs)
Transport weight 14450 kg/(31856 lbs)
Extra weight with long stick 50 kg/(110 lbs)
Height 2785 mm (9'-2")
Width 2490 mm (8'-2")
Transport width 2490 mm (8'-2")
7720 mm/7790 mm
Transport length, short/long stick (25'-4"/25'-7")
Max. digging depth 5000 mm (16'-5")
Max. digging depth (long stick) 5500 mm (18'-1")
Stick length (standard) 2070 mm (6'-9")
Stick length (long version) 2570 mm (8'-5")
Max. vertical digging depth 3100 mm (10'-2")
Max. vertical digging depth (long stick) 3600 mm (11'-10")
Max. digging height 8300 mm (27'-3")
Max. digging height (long stick) 8600 mm (28'-3")
Max. tilt-out height 5700 mm (18'-8")
Max. dump height (long stick) 6000 mm (19'-8")
Max. digging radius 8300 mm (27'-3")
Max. digging radius (long stick) 8800 mm (28'-11")
Max. reach at ground level 8100 mm (26'-7")
Max. reach at ground level (long stick) 8600 mm (28'-3")
Max. breakout force at bucket tooth 91 kN (20458 ft lbs)
Max. tearout force (standard stick) 69.2 kN (15557 ft lbs)
Max. tearout force (long stick) 60.1 kN (13511 ft lbs)
Min. tail end slewing radius 2015 mm (6'-7")
Max. boom displacement to bucket center (right side) 850 mm (2'-10")
Max. boom displacement to bucket center (left side) 640 mm (2'-1")
Ground clearance 480 mm (1'-7")
* Short stick
** Long stick
SHB 14504 en – Edition 1.3 * 14504s210.fm 2-11
--- Page 7 ---
Maintenance
3.2 Maintenance label
SHB 14504 en – Edition 1.3 * 14504s310.fm 3-5
--- Page 8 ---
Maintenance
➥ About 1 minute after the last work step, the fuel-filling pump goes into standby mode.
☞ Close and lock the filler cap.
1 ON/OFF
– Starts or stops refueling
4
2 RUN/ALARM (red LED)
3 – Red LED indicates start of delivery.
– Displays several alarm conditions
2 – see chapter 11.6 Error codes of fuel-filling pump on page 11-9.
1
3 FULL TANK/NO FUEL (yellow LED)
– Full tank, yellow LED illuminates permanently.
4 POWER/LOW TENSION (green LED)
Fig. 9: Fuel-filling pump – Fuel-filling pump is operational.
– Flashing green LED indicates insufficient power supply.
– see chapter 11.7 Troubleshooting the fuel-filling pump on page 11-10
SHB 14504 en – Edition 1.3 * 14504s312.fm 3-15
--- Page 9 ---
Maintenance
• Tighten oil filter cartridge A by hand or with an oil filter wrench
➥ Tighten to 25 Nm (18 ft lbs) or hand-tight
A
• Ensure that the oil level is correct!
• Completely remove all oil spills from the engine
• Allow the engine to warm up for about 5 minutes
• Stop the engine
• Check the seal of oil filter cartridge A and retighten by hand
• Check the oil level and add engine oil if necessary
Fig. 28: Tightening the filter cartridge
• Completely remove all oil spills from the engine
• Dispose of the used oil filter in an environmentally friendly manner
SHB 14504 en – Edition 1.3 * 14504s312.fm 3-25
--- Page 10 ---
Maintenance
3.13 V-belt
Danger!
Only check or retighten/replace the V-belt when the engine is stopped –
danger of serious injury!
☞ Stop the engine before performing inspection work in the engine compartment!
☞ Disconnect the battery.
☞ Let the engine cool down.
Caution!
Cracked and stretched V-belts cause engine damage.
☞ Replace the V-belt.
Check the V-belt once a day or every 10 operating hours, and retighten if necessary.
Retighten new V-belts after about 15 minutes of running time.
Checking V-belt tension
Checking the V-belt tension of the coolant and fuel pump
☞ Stop the engine.
2
☞ Raise the control lever base.
☞ Remove the key and carry it with you.
1 ☞ Let the engine cool down.
About 8 mm ☞ Open the engine cover.
☞ Disconnect the battery.
☞ Carefully check V-belt 1 for damage, cracks or cuts.
☞ Replace the V-belt if it touches the base of the V-belt groove or if the pulleys are dam-
Fig. 44: Checking V-belt tension
aged.
• If the V-belt is damaged:
☞ Replace the V-belt.
☞ Press with your thumb about 100 N (22.5 lbs) to check the deflection of the V-belt
between both pulleys.
A new V-belt should have a deflection of 6 to 8 mm (0.24 to 0.31") (see figure 2).
Otherwise, the deflection should be 7 to 9 mm (0.27 to 0.35") after about 5 minutes
running time (see figure 2).
☞ Retighten the V-belt if necessary.
SHB 14504 en – Edition 1.3 * 14504s312.fm 3-35
--- Page 11 ---
Maintenance
3.16 Pressure check
General
☞ Run the machine warm before checking the pressure! Hydraulic oil temperature: 50 °C/
122 °F min. (operating temperature)
➥ An infrared thermometer can be used for simple temperature checks on the machine.
☞ Pressure drop is checked by reducing engine speed from maximum to idling speed at
constant load
☞ Set the primary pressure limiting valves (PPLV) at maximum engine speed.
➥ Refer to chapter “Technical data” for the pressure settings – see Hydraulic system
pressures on page 2-3.
Caution!
Ensure utmost cleanliness of all measuring points, measurement connections,
micro measuring lines and pressure gages that are connected!
☞ Even the slightest traces of dirt can cause leaks.
☞ We recommend using the Wacker Neuson measuring kit:
• 6 pressure gages (2 x 60 bar/870 psi, 2 x 400 bar/5802 psi, 2 x 600 bar/8702 psi)
• Color-coded measuring lines
• Magnetic mounting plate for simple attachment to the machine
• Sturdy plastic case with additional storage space
☞ The Wacker Neuson threaded fitting set for measurement contains all standard
measurement connections and the necessary threaded fittings to make hydraulic
system checks easier.
☞ The Wacker Neuson vacuum pump is ideal for performing repair work on the hydraulics
to reduce hydraulic oil losses to a minimum.
SHB 14504 en – Edition 1.3 * 14504s312.fm 3-45
--- Page 12 ---
Maintenance
3.22 Air conditioning
Danger!
Switch on the air conditioning once a month to lubricate the compressor
components regularly.
Escaping refrigerant!
☞ The shaft seal in the compressor must become neither dry nor brittle.
.
Danger!
Proceed with extreme care when performing maintenance and repair work.
Work may be performed only if the fan is stopped. Disconnect the fan from the
electrical circuit!
Injury hazard!
☞ Wear protective equipment (leather gloves, safety glasses).
• The condensor and the heat exchanger have sharp-edged fins.
• Liquid refrigerant is harmful to the skin.
• Do not breathe in the vapors.
Danger!
Proceed with extreme care when performing maintenance and repair work.
Explosion hazard!
☞ No direct soldering or welding work on parts of the closed cooling circuit or
next to it.
☞ Do not throw refrigerant cylinders and/or do not expose them to direct sun-
light or other heat sources over a longer period of time when they are full.
Temperature of full refrigerant cylinder < 45 °C.
Notice!
Important information for maintenance and repair work:
• Use only R134a refrigerant for the compressor.
• Do not use refrigerant again that has been removed with a pump.
• Do not store any components of the refrigerant circuit without any appropriate
protection, lids, etc.
• There may be residual pressure in the system even if it is empty. Release this
pressure with extreme care as you remove the connections.
• When working on the cooling circuit, close all openings tightly to prevent
humidity from penetrating into the system.
• Do not open the cooling circuit outdoors in humid weather or rain.
• Always empty the system before performing maintenance on the cooling circuit.
• Have maintenance and repair work performed by specialized personnel only.
SHB 14504 en – Edition 1.3 * 14504s313.fm 3-55
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Maintenance
Lubrication points
4 13 13
6
14
3
7
8
15
12
4 3 6 1
10
11
10 2
10 11 16
2
17
9
1
5
SHB 14504 en – Edition 1.3 * 14504s313.fm 3-65
--- Page 15 ---
Engine
☞ Take the measure “L” and enter it in the table
– see Automatic engine speed setting on page 4-14
➥ Example: 125.28 mm
L
☞ Turn the dial gage to the zero position of the pointer by means of the outer ring
Important: Do not modify the direction of rotation when adjusting prestroke travel!
☞ Turn the crankshaft in the direction of rotation of the engine until the dial gage shows
the prestroke travel measure, see table 1
➥ Example: start of delivery 9°
Camshaft type L
Prestroke travel 3.95 mm
☞ Read off the actual start of delivery and enter it in the table
– see Automatic engine speed setting on page 4-14
➥ Example: 8°
☞ Measure “A” = read off the code for the injection pump length and enter it in the table
– see Automatic engine speed setting on page 4-14
➥ Example: 42
☞ Remove the measuring instrument
☞ Determine the correct shim thickness
– see Determining the shim thickness for start of delivery on page 4-13
☞ Place the correct shim on the roller tappet
Important: The measurement procedure described above must be performed for each
injection pump!
SHB 14504 en – Edition 1.3 * 14504s410.fm 4-11
--- Page 16 ---
Engine
Problem Possible causes
Lube oil level too high
Fuel grade does not comply with specifications
Dirty fuel filter
Dirty air filter
Insufficient engine output
Wrong valve clearance
Injection line leaks
Malfunctioning fuel injector
Air in fuel system
Injection line leaks
Engine does not run on all cylinders
Malfunctioning fuel injector/injection pump
Lube oil level too low
Insufficient or no engine oil pressure Engine inclination too high
Wrong SAE viscosity/oil grade of engine lubrication oil
Lube oil level too high
Engine inclination too high
Engine oil consumption too high
Wrong SAE viscosity/oil grade of engine lubrication oil
Worn oil scraper rings
Lube oil level too high
Engine inclination too high
Blue
Engine oil combustion (malfunctioning cylinder-head gasket)
Worn oil scraper rings
Engine starting temperature too low
Fuel grade does not comply with specifications
White Malfunctioning fuel injector
Engine smoke
Exteme misalignment of injection time
Coolant combustion (malfunctioning cylinder-head gasket)
Dirty air filter
Malfunctioning fuel injector (drips)
Black Wrong fuel injection pump setting
Wrong valve clearance
Dirty injection nozzle
SHB 14504 en – Edition 1.3 * 14504s410.fm 4-21
--- Page 17 ---
Hydraulic system
5.2 Gear pump
B3
Pos. Designation
B3 Positions of upper table page 5-4
A3 Gear pump output 3
a3 a3 Measurement connection MC3
DB3 Pressure limiting valve P3
DB3 A3
Design
• Axial piston pump
• Swash-plate design
• Add-on regulator
• 2 separate pumps (P1, P2) on one shaft
• 2 separate regulators (1 x per pump)
Control system
• Summation regulation
• Negative Control regulation
• Output regulation
• Oil flow regulation
Design
K1
6
Pos. Designation
K1 Pump control piston
1 Shaft
2 Cylinder
3 Piston
4 Slide
5 Swash plate
6 Control disc
1 2 3 4 5
SHB 14504 en – Edition 1.3 * 14504s510.fm 5-9
--- Page 18 ---
Hydraulic system
Tightening torques for front pump regulator
12 14 14
15 13 17 17
11 16 17
Pos. Thread size Tightening torque (Nm / ft lbs)
11 M8 15.7/11.6
12 M8 15.7/11.6
13 M6 11.8/8.7
14 M6 11.8/8.7
15 NPTF 1/16 8.8/6.5
16 M30x1.5 156.9/115.7
17 M8 15.7/11.6
SHB 14504 en – Edition 1.3 * 14504s510.fm 5-19
--- Page 20 ---
Hydraulic system
K
C
E
F
J B
G
H
A
SV
Pos. Designation Remarks
1 Connection
2 Connection
3 Connection
4 Connection
5 Connection
A Shuttle valve block
B Housing of pilot control unit
C Bellows
D Handle See electrical components
E Tappet
F lift
G Spring pile
H Control spool
J Spring guide
K Universal joint
P Connection P Wire filter in threaded connection
SV Shuttle valve in shuttle valve block A
SVE External shuttle valve accessed via floor panel in cabin
T Connection T
SHB 14504 en – Edition 1.3 * 14504s510.fm 5-29
--- Page 21 ---
Hydraulic system
5.12 Pilot oil supply unit
The pilot oil supply unit is located under the base cover in the cabin (D2).
The pilot control filter is integrated in the threaded connection in connection P1.
CT4 CT1 CT2 CT3
Y12 Y13 Y3
PA
P
P1
T
A B P2 C
Legend
Pos. Designation E connector Remarks
CT1 Solenoid directional valve (oil flow limit) Y12 Hydraulic pump
CT2 Solenoid directional valve (safety valve) Y13 Pilot control
CT3 Solenoid directional valve (high speed) Y3
CT4 Non-return valve
SHB 14504 en – Edition 1.3 * 14504s510.fm 5-39
--- Page 22 ---
Hydraulic system
Connections view E/view F
View E View F
PBo1s
PAo1
MR
P1
P4 P3