Page 1
POSEIDON 7 - C3
SERVICE MANUAL
ENGLISH
Page 2
POSEIDON 7 NEW-C3_en_Ver.1.0_33/12
Preface
This service manual contains detailed description of the main repair work on the cold HPW
POSEIDON 7.
Repair work requires a suitable testing workplace with the necessary water and power supply.
If operating errors are evident, refer the customer to the operating instructions.
A fault in the cleaner can have several causes as described in the section on troubleshooting.
Refer to the illustrated spare parts lists during repairs. They show the assembly position and the
sequence in which the individual components should be assembled.
See ”Technical Service Bulletin (TSB) sheets. They include information on technical
modifications that have been made after this repair manual was printed.
”Technical Service Bulletin” sheets are also valid as a supplement to the spare parts list until
publication of a new edition.
Repair manuals and ” Technical Service Bulletin” sheets should be available at the site
where repairs are carried out.
It is not permitted to give them to third parties.
Use original Nilfisk-ALTO spare parts only.
Page 3
A.
B.
C.
D.
E.
F.
G.
H.
I. Special tools /Spare parts
Wiring diagrams
Adjustment / Test
Service / Repair
Troubleshooting
Function
Construction
Technical data
Safety instructions
Page 4
Index
4
POSEIDON 7 NEW-C3_en_Ver.1.0_33/12
A. Safety instructions ................................................... 5
B. Technical data .......................................................... 6
C. Constrution
-Overview Unit: .......................................................... 17
- Overview Motor/pump .............................................. 19
D. Function
-Function By-pass system .......................................... 22
-Schematic function .................................................... 23
E. Troubleshooting
-Table ......................................................................... 24
F. Service / Repair
-Indification ................................................................. 26
-Chassis ..................................................................... 26
-Water outlet/ By-pass system ................................... 27
-Pump ........................................................................ 28
-Wobble disc / motor ................................................. 30
G. Adjustment / Test
- Safety valve ............................................................. 31
H. Wiring diagrams
- ................................................................................. 32
Page 5
POSEIDON 7 NEW-C3_en_Ver.1.0_33/12
Safety instructions
5
A
For your own safety
ESD measures
(electrostatic discharge)
Observe valid safety regulations
for electrical equipment. In
particular, observe the following
regulations:
IEC 60335-2-79
EN 60335-2-79
Additionally:
Also see national regulations
Before using the cleaner, always
read the operating instructions
and keep them readily available.
Repair work should be carried
out by persons instructed in
electrical installations or by
trained electricians only.
Take the following ESD precautions before carrying out any
repairs to the electronics:
Touch the earth conductor before repairing the cleaner
( to discharge electrostatic charge from your body ).
Wear wrist band if necassary.
Use a conductive floor covering or a conductive table cover.
Never touch the printed circuit board or electronic components
( always hold on to plastic ).
Transport electronic components in conductive packaging
( e.g. ESD bag ).
Page 6
Technical data
POSEIDON 7 NEW-C3_en_Ver.1.0_33/12
6
B
Parent item no: Descripon:
107146800 POSEIDON 7-67 FA 400/3/50 EU
Service data Unit Value
Model
POSEIDON 7-67 FA
Item no. →
107146800
Technical Data ↓
Pump:
Pressure pump head @ Qiec bar
184
Pressure pump outlet @ Qiec bar
183
Pressure gun outlet @ Qiec bar
150
Retaining pressure* bar
-
Flow. Qiec l/min
18,4
Suction height dry m
1
Suction height primed m
2,5
Pump type
C3
Number of pistons
4
Piston type
Full Ceramic
Stroke mm
0
Pump oil type
Castrol ALPHASyn 150
Pump oil amount l
1,1
Electric:
Electric data
Control voltage V
Highvoltage (HV) test voltage V
1,5
HV Insulation resistance
1
Earth circuit resistance
0,2
Pump revolutions
1450
Electrical diagram no.
106420552
Unit Data:
Nozzle size, water
NT 0680
Max. Inlet temp. (primed) °C
-
Max. Inlet temp. (suction) °C
70
Max. Inlet temp. (pressure fed) °C
85
Gun Type
ERGO 2000 STD INCL. SW IVEL NILFISK
Primary Lance Type
TORNADO PLUS LANCE 1120 BEND
Secondary Lance Type
None
Hose
DN10 x 10m - Black
Guarantied sound power
88
Impactfactor calculated
0
Vibration ISO 5349, lance 1 / lance 2
#REF!
Protection Class
IPX5
Machine incl. standard acc. kg
89
Size - Machine alone L x W x H mm
#REF!
Page 7
Technical data
POSEIDON 7 NEW-C3_en_Ver.1.0_33/12
7
B
Parent item no: Descripon:
107146801 POSEIDON 7-67 FAXT 400/3/50 EU
Service data Unit Value
Model
POSEIDON 7-67 FAXT
Item no. →
107146801
Technical Data ↓
Pump:
Pressure pump head @ Qiec bar
190
Pressure pump outlet @ Qiec bar
190
Pressure gun outlet @ Qiec bar
149
Retaining pressure* bar
-
Flow. Qiec l/min
18,3
Suction height dry m
1
Suction height primed m
2,5
Pump type
C3
Number of pistons
4
Piston type
Full Ceramic
Stroke mm
0
Pump oil type
Castrol ALPHASyn 150
Pump oil amount l
1,1
Electric:
Electric data
Control voltage V
Highvoltage (HV) test voltage V
1,5
HV Insulation resistance
1
Earth circuit resistance
0,2
Pump revolutions
1450
Electrical diagram no.
106420552
Unit Data:
Nozzle size, water
NT 0680
Max. Inlet temp. (primed) °C
-
Max. Inlet temp. (suction) °C
70
Max. Inlet temp. (pressure fed) °C
85
Gun Type
ERGO 2000 STD INCL. SW IVEL NILFISK
Primary Lance Type
TORNADO PLUS LANCE 1120 BEND
Secondary Lance Type
TURBOHAMMER PLUS 1040 STRAIGHT W/O
Hose
DN10 x 15m - Grey
Guarantied sound power
88
Impactfactor calculated
0
Vibration ISO 5349, lance 1 / lance 2
#REF!
Protection Class
IPX5
Machine incl. standard acc. kg
95
Size - Machine alone L x W x H mm
#REF!
Page 8
Technical data
POSEIDON 7 NEW-C3_en_Ver.1.0_33/12
8
B
Parent item no: Descripon:
107146802 POSEIDON 7-67 FFA 400/3/50 EU
Service data Unit Value
Model
POSEIDON 7-67 FFA
Item no. →
107146802
Technical Data ↓
Pump:
Pressure pump head @ Qiec bar
183
Pressure pump outlet @ Qiec bar
183
Pressure gun outlet @ Qiec bar
150
Retaining pressure* bar
-
Flow. Qiec l/min
18,4
Suction height dry m
1
Suction height primed m
2,5
Pump type
C3
Number of pistons
4
Piston type
Full Ceramic
Stroke mm
0
Pump oil type
Castrol ALPHASyn 150
Pump oil amount l
1,1
Electric:
Electric data
Control voltage V
Highvoltage (HV) test voltage V
1,5
HV Insulation resistance
1
Earth circuit resistance
0,2
Pump revolutions
1450
Electrical diagram no.
106420552
Unit Data:
Nozzle size, water
NT 0680
Max. Inlet temp. (primed) °C
-
Max. Inlet temp. (suction) °C
70
Max. Inlet temp. (pressure fed) °C
85
Gun Type
ERGO 2000 STD INCL. SW IVEL NILFISK
Primary Lance Type
TORNADO PLUS LANCE 1120 BEND
Secondary Lance Type
None
Hose
DN10 x 10m - Grey
Guarantied sound power
88
Impactfactor calculated
0
Vibration ISO 5349, lance 1 / lance 2
#REF!
Protection Class
IPX5
Machine incl. standard acc. kg
89
Size - Machine alone L x W x H mm
#REF!
Page 9
Technical data
POSEIDON 7 NEW-C3_en_Ver.1.0_33/12
9
B
Parent item no: Descripon:
107146803 POSEIDON 7-67 FA 230;400/3/50 NO
Service data Unit Value
Model
POSEIDON 7-67 FA
Item no. →
107146803
Technical Data ↓
Pump:
Pressure pump head @ Qiec bar
183
Pressure pump outlet @ Qiec bar
183
Pressure gun outlet @ Qiec bar
150
Retaining pressure* bar
-
Flow. Qiec l/min
18,4
Suction height dry m
1
Suction height primed m
2,5
Pump type
C3
Number of pistons
4
Piston type
Full Ceramic
Stroke mm
0
Pump oil type
Castrol ALPHASyn 150
Pump oil amount l
1,1
Electric:
Electric data
Control voltage V
Highvoltage (HV) test voltage V
1,5
HV Insulation resistance
1
Earth circuit resistance
0,2
Pump revolutions
1450
Electrical diagram no.
106420556
Unit Data:
Nozzle size, water
NT 0680
Max. Inlet temp. (primed) °C
-
Max. Inlet temp. (suction) °C
70
Max. Inlet temp. (pressure fed) °C
85
Gun Type
ERGO 2000 STD INCL. SW IVEL NILFISK
Primary Lance Type
TORNADO PLUS LANCE 1120 BEND
Secondary Lance Type
None
Hose
DN10 x 10m - Black
Guarantied sound power
89
Impactfactor calculated
0
Vibration ISO 5349, lance 1 / lance 2
#REF!
Protection Class
IPX5
Machine incl. standard acc. kg
90
Size - Machine alone L x W x H mm
#REF!
Page 10
Technical data
POSEIDON 7 NEW-C3_en_Ver.1.0_33/12
10
B
Parent item no: Descripon:
107146804 POSEIDON 7-67 FA 200/3/50 JP
Service data Unit Value
Model
POSEIDON 7-67 FA
Item no. →
107146804
Technical Data ↓
Pump:
Pressure pump head @ Qiec bar
183
Pressure pump outlet @ Qiec bar
183
Pressure gun outlet @ Qiec bar
150
Retaining pressure* bar
230
Flow. Qiec l/min
18,4
Suction height dry m
1
Suction height primed m
2,5
Pump type
C3
Number of pistons
4
Piston type
Full Ceramic
Stroke mm
0
Pump oil type
Castrol ALPHASyn 150
Pump oil amount l
1,1
Electric:
Electric data
Control voltage V
Highvoltage (HV) test voltage V
1,5
HV Insulation resistance
1
Earth circuit resistance
0,2
Pump revolutions
1450
Electrical diagram no.
106420555
Unit Data:
Nozzle size, water
NT 0680
Max. Inlet temp. (primed) °C
-
Max. Inlet temp. (suction) °C
70
Max. Inlet temp. (pressure fed) °C
85
Gun Type
ERGO 2000 STD INCL. SW IVEL NILFISK
Primary Lance Type
TORNADO PLUS LANCE 1120 BEND
Secondary Lance Type
None
Hose
DN10 x 10m - Black
Guarantied sound power
88
Impactfactor calculated
0
Vibration ISO 5349, lance 1 / lance 2
#REF!
Protection Class
IPX5
Machine incl. standard acc. kg
91
Size - Machine alone L x W x H mm
#REF!
Page 11
Technical data
POSEIDON 7 NEW-C3_en_Ver.1.0_33/12
11
B
Parent item no: Descripon:
107146805 POSEIDON 7-67 FA 200/3/60 JP
Service data Unit Value
Model
POSEIDON 7-67 FA
Item no. →
107146805
Technical Data ↓
Pump:
Pressure pump head @ Qiec bar
185
Pressure pump outlet @ Qiec bar
185
Pressure gun outlet @ Qiec bar
151
Retaining pressure* bar
230
Flow. Qiec l/min
18,5
Suction height dry m
1
Suction height primed m
2,5
Pump type
C3
Number of pistons
4
Piston type
Full Ceramic
Stroke mm
0
Pump oil type
Castrol ALPHASyn 150
Pump oil amount l
1,1
Electric:
Electric data
Control voltage V
Highvoltage (HV) test voltage V
1,5
HV Insulation resistance
1
Earth circuit resistance
0,2
Pump revolutions
1740
Electrical diagram no.
106420555
Unit Data:
Nozzle size, water
NT 0680
Max. Inlet temp. (primed) °C
-
Max. Inlet temp. (suction) °C
70
Max. Inlet temp. (pressure fed) °C
85
Gun Type
ERGO 2000 STD INCL. SW IVEL NILFISK
Primary Lance Type
TORNADO PLUS LANCE 1120 BEND
Secondary Lance Type
None
Hose
DN10 x 10m - Black
Guarantied sound power
88
Impactfactor calculated
0
Vibration ISO 5349, lance 1 / lance 2
#REF!
Protection Class
IPX5
Machine incl. standard acc. kg
91
Size - Machine alone L x W x H mm
#REF!
Page 12
Technical data
POSEIDON 7 NEW-C3_en_Ver.1.0_33/12
12
B
Parent item no: Descripon:
107146806 POSEIDON 7-67 FA 220;440/3/60 EXPT
Service data Unit Value
Model
POSEIDON 7-67 FA
Item no. →
107146806
Technical Data ↓
Pump:
Pressure pump head @ Qiec bar
185
Pressure pump outlet @ Qiec bar
195
Pressure gun outlet @ Qiec bar
151
Retaining pressure* bar
230
Flow. Qiec l/min
18,5
Suction height dry m
1
Suction height primed m
2,5
Pump type
C3
Number of pistons
4
Piston type
Full Ceramic
Stroke mm
0
Pump oil type
Castrol ALPHASyn 150
Pump oil amount l
1,1
Electric:
Electric data
Control voltage V
Highvoltage (HV) test voltage V
1,5
HV Insulation resistance
1
Earth circuit resistance
0,2
Pump revolutions
1740
Electrical diagram no.
106420556
Unit Data:
Nozzle size, water
NT 0680
Max. Inlet temp. (primed) °C
-
Max. Inlet temp. (suction) °C
70
Max. Inlet temp. (pressure fed) °C
85
Gun Type
ERGO 2000 STD INCL. SW IVEL NILFISK
Primary Lance Type
TORNADO PLUS LANCE 1120 BEND
Secondary Lance Type
None
Hose
DN10 x 15m - Black
Guarantied sound power
88
Impactfactor calculated
0
Vibration ISO 5349, lance 1 / lance 2
#REF!
Protection Class
IPX5
Machine incl. standard acc. kg
93
Size - Machine alone L x W x H mm
#REF!
Page 13
Technical data
POSEIDON 7 NEW-C3_en_Ver.1.0_33/12
13
B
Parent item no: Descripon:
107146808 POSEIDON 7-52 FA 220-240/1/60 USA
Service data Unit Value
Model
POSEIDON 7-52 FA
Item no. →
107146808
Technical Data ↓
Pump:
Pressure pump head @ Qiec bar
147
Pressure pump outlet @ Qiec bar
147
Pressure gun outlet @ Qiec bar
117
Retaining pressure* bar
200
Flow. Qiec l/min
17,2
Suction height dry m
1
Suction height primed m
2,5
Pump type
C3
Number of pistons
4
Piston type
Full Ceramic
Stroke mm
0
Pump oil type
Castrol ALPHASyn 150
Pump oil amount l
1,1
Electric:
Electric data
Control voltage V
Highvoltage (HV) test voltage V
1,5
HV Insulation resistance
1
Earth circuit resistance
0,2
Pump revolutions
1740
Electrical diagram no.
106420566
Unit Data:
Nozzle size, water
NT 0700
Max. Inlet temp. (primed) °C
-
Max. Inlet temp. (suction) °C
70
Max. Inlet temp. (pressure fed) °C
85
Gun Type
ERGO 2000 STD INCL. SW IVEL NILFISK
Primary Lance Type
TORNADO PLUS LANCE 1120 BEND
Secondary Lance Type
None
Hose
DN10 x 15m - Black
Guarantied sound power
88
Impactfactor calculated
0
Vibration ISO 5349, lance 1 / lance 2
#REF!
Protection Class
IPX5
Machine incl. standard acc. kg
94
Size - Machine alone L x W x H mm
#REF!
Page 14
Technical data
POSEIDON 7 NEW-C3_en_Ver.1.0_33/12
14
B
Parent item no: Descripon:
107146809 GERNI POSEIDON 7-67 FA 400/3/50
Service data Unit Value
Model
GERNI POSEIDON 7-67 FA
Item no. →
107146809
Technical Data ↓
Pump:
Pressure pump head @ Qiec bar
183
Pressure pump outlet @ Qiec bar
183
Pressure gun outlet @ Qiec bar
150
Retaining pressure* bar
-
Flow. Qiec l/min
18,4
Suction height dry m
1
Suction height primed m
2,5
Pump type
C3
Number of pistons
4
Piston type
Full Ceramic
Stroke mm
0
Pump oil type
Castrol ALPHASyn 150
Pump oil amount l
1,1
Electric:
Electric data
Control voltage V
Highvoltage (HV) test voltage V
1,5
HV Insulation resistance
1
Earth circuit resistance
0,2
Pump revolutions
1450
Electrical diagram no.
106420552
Unit Data:
Nozzle size, water
NT 0680
Max. Inlet temp. (primed) °C
-
Max. Inlet temp. (suction) °C
70
Max. Inlet temp. (pressure fed) °C
85
Gun Type
ERGO 2000 ST GUN W. HOSE SWIVEL -
GERNI
Primary Lance Type
TORNADO PLUS LANCE 1120 BEND
Secondary Lance Type
None
Hose
DN10 x 10m - Black
Guarantied sound power
88
Impactfactor calculated
0
Vibration ISO 5349, lance 1 / lance 2
#REF!
Protection Class
IPX5
Machine incl. standard acc. kg
89
Size - Machine alone L x W x H mm
#REF!
Page 15
Technical data
POSEIDON 7 NEW-C3_en_Ver.1.0_33/12
15
B
Parent item no: Descripon:
107146811 POSEIDON 7-67 FA 400/3/50 DK
Service data Unit Value
Model
POSEIDON 7-67 FA
Item no. →
107146811
Technical Data ↓
Pump:
Pressure pump head @ Qiec bar
183
Pressure pump outlet @ Qiec bar
183
Pressure gun outlet @ Qiec bar
150
Retaining pressure* bar
-
Flow. Qiec l/min
18,4
Suction height dry m
1
Suction height primed m
2,5
Pump type
C3
Number of pistons
4
Piston type
Full Ceramic
Stroke mm
0
Pump oil type
Castrol ALPHASyn 150
Pump oil amount l
1,1
Electric:
Electric data
Control voltage V
Highvoltage (HV) test voltage V
1,5
HV Insulation resistance
1
Earth circuit resistance
0,2
Pump revolutions
1450
Electrical diagram no.
106420552
Unit Data:
Nozzle size, water
NT 0680
Max. Inlet temp. (primed) °C
-
Max. Inlet temp. (suction) °C
70
Max. Inlet temp. (pressure fed) °C
85
Gun Type
ERGO 2000 STD INCL. SW IVEL NILFISK
Primary Lance Type
POWERSPEED VARIO PLUS 1090 BEND W/O
NOZZLE
Secondary Lance Type
None
Hose
DN10 x 10m - Black
Guarantied sound power
88
Impactfactor calculated
0
Vibration ISO 5349, lance 1 / lance 2
#REF!
Protection Class
IPX5
Machine incl. standard acc. kg
89
Size - Machine alone L x W x H mm
#REF!
Page 16
Technical data
POSEIDON 7 NEW-C3_en_Ver.1.0_33/12
16
B
Parent item no: Descripon:
107146812 POSEIDON 7-67 FBFA 400/3/50 EU
Service data Unit Value
Model
POSEIDON 7-67 FBFA
Item no. →
107146812
Technical Data ↓
Pump:
Pressure pump head @ Qiec bar
183
Pressure pump outlet @ Qiec bar
183
Pressure gun outlet @ Qiec bar
150
Retaining pressure* bar
-
Flow. Qiec l/min
18,4
Suction height dry m
1
Suction height primed m
2,5
Pump type
C3
Number of pistons
4
Piston type
Full Ceramic
Stroke mm
0
Pump oil type
Castrol ALPHASyn 150
Pump oil amount l
1,1
Electric:
Electric data
Control voltage V
Highvoltage (HV) test voltage V
1,5
HV Insulation resistance
1
Earth circuit resistance
0,2
Pump revolutions
1450
Electrical diagram no.
106420552
Unit Data:
Nozzle size, water
NT 0680
Max. Inlet temp. (primed) °C
-
Max. Inlet temp. (suction) °C
70
Max. Inlet temp. (pressure fed) °C
85
Gun Type
ERGO 2000 STD INCL. SW IVEL NILFISK
Primary Lance Type
TORNADO PLUS LANCE 1120 BEND
Secondary Lance Type
None
Hose
DN10 x 10m - Grey
Guarantied sound power
88
Impactfactor calculated
0
Vibration ISO 5349, lance 1 / lance 2
#REF!
Protection Class
IPX5
Machine incl. standard acc. kg
94
Size - Machine alone L x W x H mm
#REF!
Page 17
Construction
POSEIDON 7 NEW-C3_en_Ver.1.0_33/12
17
C
Overview Poseidon 7
Lance holder top
Water inlet + Filter
ON / OFF switch
Pic. C1: POSEIDON 7
Lance holder bottom
Water outlet
Pressure gauge
View for oil container
Detergent valve
Detergent Bottles
Cabinet lock
Pic. C2: POSEIDON 7 Cabinet & frame parts
Hose reel
Page 18
Construction
POSEIDON 7 NEW-C3_en_Ver.1.0_33/12
18
C
Overview Poseidon 7
Pic. C3: Poseidon 7 without cabinet
Pressure gauge
Reed switch
By-pass valve
Cylinder head
Water outlet
Water inlet
Electrical box
Water regulation
D-bearing cover
Detergent valve
ON-OFF switch
Pump oil lid
Pump oil container
Cylinder block
Oil level sensor
Page 19
Construction
POSEIDON 7 NEW-C3_en_Ver.1.0_33/12
19
C
C3 Water outlet
Reed switch
Water regulation
Safety valve
By-pass piston
Start/stop piston
Injector nozzle
By-pass housing
Injector valve
C3 By-pass system
Pic. C4: Water outlet
Pic. C5: By-pass system
Page 20
Construction
POSEIDON 7 NEW-C3_en_Ver.1.0_33/12
20
C
Overview C3 Pump
Pic. C6: Pump parts
Piston
Washer for spring
Spring
Cylinder block
Thrust collar
Oil seals
Cylinder head
Pressure valve
Secondary seal
Support ring
Back up ring
Primary seal
Header ring
Inlet valve
Page 21
Construction
POSEIDON 7 NEW-C3_en_Ver.1.0_33/12
21
C
Overview C3 Motor/Pump
Fan End bearing cover
D-bearing cover
Radial roller bearing
Pic. C7: Motor/pump unit
Oil seal
Cylindrical roller
bearing
Pressure disc
Wobble disc/
Radial
ball bearing
Fan cover
Cylindrical roller bearing
Motor bracket
Page 22
22
POSEIDON 7 NEW-C3_en_Ver.1.0_33/12
Function
D
The bypass valve has 4 functions:
1. Protect the machine against excess pressure.
2. Relieve the pressure in bypass.
3. Fast conversion to high-pressure.
4. Ensure 0 pressure when the machine is stopped.
Operation:
The water from the pump is led into chamber A of the bypass valve.
From there, the water passes through hole B in piston C and out of the machine.
This leads to a pressure imbalance in piston C, which keeps valve disc D closed to valve seat E.
Bypass:
When water consumption stops (the spray handle is released), pressure increases briefly until safety valve F opens upon reaching the pressure setting, which should be adjusted to 25-30 bars over
working pressure. This causes the pressure drop in piston C to disappear, and valve disc D moves
from valve seat E. The machine is now running in bypass.
A
B
C
E
D
F
Function By-pass system
Pic. D1: By-pass system
Page 23
23
POSEIDON 7 NEW-C3_en_Ver.1.0_33/12
Function
D
By-pass system, Pressure
By-pass system, By-pass
Pic. D2: By-pass system
Pic. D3: By-pass system
Page 24
Troubleshooting
POSEIDON 7 NEW-C3_en_Ver.1.0_33/12
24
E
Fig. E.1:Troubleshooting 1
Fault Cause Remedy
Pressure drop
- Air in the system.
- High pressure nozzle blocked /
worn.
- Pressure control on the spray lance
is not set correctly.
- Detergent container empty.
- Water inlet temperature too high.
- Vent the system by operating the spray gun
several times at short intervals .If necessarly
operate the cleaner for a short time without the
High pressure hose connected.
- Clean / replace the high pressure nozzle.
- Set the required working pressure.
- Change container or close detergent valve.
- See technical data part ”B”.
Pressure
fluctuations
- Lack of water
- Water inlet hose is too long
or its cross-section too small.
- Lack of water caused by
blocked water filter.
- Lack of water because max.
permissible suction height has
not been heeded.
-Pump sucks in air (suction mode)
- Open water tap.
- Use specified water inlet hose
(Refer to user manual).
- Clean the water filter in the water connection.
(Never work without water filter).
- See technical data part ”B”
- Check that the suction set is air tight.
The motor does
not start when
the machine is
switced on.
- The plug is not inserted
properly, i.e. there is no
current.
- The main fuse is switced off.
- Check the plug, lead and switch.
If necessary have them replaced by a trained
electrician.
- Switch on the main fuse.
General failures.
Page 25
Troubleshooting
POSEIDON 7 NEW-C3_en_Ver.1.0_33/12
25
E
Fault Cause Remedy
When the cleaner is
switched on the motor
buzzes without starting.
The main voltage is too low or
there is a phase failure
(3 ph model).
The pump is blocked or
frozen.
Incorrect cross-section or
lenght of the extension lead.
- Have the electrical connections checked.
- Pump needs service (see part ”F”).
- Use lead with correct cross section and
length.
The motor switches off.
The overload protection has
been activated due to overheating or overloading of the motor.
High pressure nozzle is dirty.
- Check that the main voltage and the cleaner
voltage are the same. Switch off the cleaner
and allow it to cool for at least 3 minutes.
- Change the high pressure nozzle.
Cleaner starts / stops
by itself.
Leakage on outlet side.
- Locate the leak and repair it.
No detergents drawn
in.
Injector is dirty or suction hose is
blocked.
Detergent container empty.
The cap on the nozzle is not set
at low pressure.
- Clean.
- Top up/change the container.
- Turn cap of the FlexoPower nozzle towards
”CHEM” up to the stop.
Working pressure too
low.
Working pressure too
low and loud noise
comming from pump .
- Suction - and pressure
valves leaking.
- Piston U-sleves in pump
worn.
- Piston stocked in pump.
- Replace parts.
- Check pump for damaged parts — demount
and reassemble pump housing with the right
torque.
General failures.
Page 26
POSEIDON 7 NEW-C3_en_Ver.1.0_33/12
Service / Repair
26
F
Pic. F4: Oil container
Identify the machine version at the
dataplate.
Find the techincal data for the machine
version in this manual chapter ”A”.
Pic. F1: Data Plate Pic. F2: Cabinet
Pic. F3: E– box
1
1
The lid for the electrical box is fitted with
2 x torx T20 screws.
Remove the screws and push the lid backwards to open the E-box.
The oil container is fitted to the pump by the 2x
Torx 20 screws.
The cabinet is demounted by turning the two
lock screws (1) on top of the cabinet.
Open the cabinet and pull forward.
Page 27
POSEIDON 7 NEW-C3_en_Ver.1.0_33/12
Service / Repair
27
F
C3 Pump
Water inlet filter is placed in the housing for
hose connector. Remove the circlip and filter
check for impurities.
Pic. F5: Water inlet filter
By-pass valve.
Pic. F6: Water outlet/ Injector
1. The injector nozzle is placed in the water
outlet and is dismounted with a 10mm
socket wrench.
2. Start/stop piston is placed behind the
out let coupling.
Pic. F7: By-pass system
1.
2.
All important wear parts in the by-pass system are available as spare
part kits.
Page 28
POSEIDON 7 NEW-C3_en_Ver.1.0_33/12
Service / Repair
28
F
C3 Pump
Pic. F8: Valve seats
Use an adequate tool to remove the valve
seats. In the picture puller 1216506 is used.
Pic. F9: Primary seals
Mounting of textile sleeves by means of tool
no. 1220090. It is an advantage if the sleeves
have been in a water bath for 3-4 hours before
mounting them. Do not forget to blow air
through the ducts.
Kenn ey
Pic. F10: Water seals
Be aware of the right direction and order of the
pump parts by replacement.
Spacer ring
O-ring Back-up ring
Secondary sleeve
Always replace secondary sleeves when replacing
pressure sleeves. Check that there is a free
passage from the drain holes.
Pic. F11: Water seals
Page 29
POSEIDON 7 NEW-C3_en_Ver.1.0_33/12
Service / Repair
29
F
Drain off the oil. Loosen the 8 bolts gradually (because of the spring load). Special box head
no.1206762 may be used.
Mount new O-rings on studs with tool no. 1206812.
Washer
O-ring
Thrust collar
Torque: 37 Nm
Oil sleeve
Secondary sleeve
Spacer ring (Crovn)
C3 Pump
Pic. F12: Water seals
Pic. F13: Oil seals
Carefully tip out the oil sleeves with an adequate screwdriver and discard them. Be careful not
to scratch the surface.
Pic. F14: Oil seals
Before mounting the new sleeves, it will be a
good idea to moisten the sleeves with soapy
water. Mount new oil sleeves with punch
no.1220429. Carefully knock or press them
home.
Page 30
POSEIDON 7 NEW-C3_en_Ver.1.0_33/12
Service / Repair
30
F
Dismount locking ring on the rotor shaft.
The wobble disc is easily dismounted with puller no. 1205715 and special legs no.
1206150/1206168. Do not forget to remove
the key before dismounting the D-bearing cover.
Check bearing surfaces for wear. If in doubt,
replace kit complete after approx. 2000 hours.
When mounting the D-bearing cover complete,protect the U sleeve with tool no. 1206598
which is placed on the shaft, before placing
the cover.
When mounting the wobble disc, lubricate the
bearings with oil. The big roller bearings are
identical. Do not forget to mount the circlip on
the rotor shaft. Refill with 1 l oil type Castrol
Alphasynt ISO 150.
Check the bearing surfaces for wear. As
long as the wear is even and shiny without
pittings or grooves, the wobble disc can be
re-used.
Pittings
C3 Pump
Pic. F15: Woble disc
Pic. F16: D-bearing cover
Pic. F17: Bearings and tracks
Pic. F18: Oil seals
Page 31
POSEIDON 7 NEW-C3_en_Ver.1.0_33/12
Adjustment / Test
31
G
Safety valve
Pic. G1: Safety valve
The safety valve’s factory setting for opening pressure = working pressure + 25 to +30 bars.
Upon each service inspection the setting must be tested and, if necessary, adjusted.
When mounting, affix ball and pressure plate to the spring with lubrication.
The seat is screwed on using a 10mm socket wrench (no gasket required).
Before testing with a pressure gauge, make sure that two threads are visible behind the locknut.
Warning: Before starting the pump, check that the test manometer valve is open. Close the valve
slowly;
pressure must never exceed 250 bars.
Pic. G2: Tool for Safety valve
6mm Allen wrench
10mm box spanner
no.: 1206754
Page 32
Wiring diagrams
POSEIDON 7 NEW-C3_en_Ver.1.0_33/12
32
H
Page 33
Wiring diagrams
POSEIDON 7 NEW-C3_en_Ver.1.0_33/12
33
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Wiring diagrams
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34
H
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Wiring diagrams
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35
H
Page 36
Wiring diagrams
POSEIDON 7 NEW-C3_en_Ver.1.0_33/12
36
H
Page 37
Special Tools / Spare Parts
37
POSEIDON 7 NEW-C3_en_Ver.1.0_33/12
I
Page 38
Notes
38
POSEIDON 7 NEW-C3_en_Ver.1.0_33/12
Page 39
Nilfisk - ALTO
Division of Nilfisk - Advance A/S
Industrivej 1
9650 Hadsund
Denmark
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