Nilfisk-ALTO POSEIDON 2-29 Operating instructions

Repair Manual
POSEIDON 2-29, 2-25 & 2-22
POSEIDON 2-29, 2-25 & 2-22 XT

2
Index
A. Safe y precau ions 3
B. Technical da a 4
C. S ruc ure 5-6
D. Service / Repair 7-23
F. Func ion 25-26
E. Tools 24
G. Elec ric digrams 27-28

3
A
Safe y precau ions.
Warning!
• High pressure jets can be dangerous. Never direct the water jet at persons, animals, live elec-
trical equipment or the machine itself.
• Never try to clean clothes or footwear on yourself or other persons.
• Hold the spray lance firmly with both hands. he spray lance is affected by a thrust of up to
24,1N during operation.
• he operator and anyone in the immediate vicinity of the site of cleaning should take action to
protect themselves from being struck by debris dislodged during operation. Wear goggles dur-
ing operation.
• his appliance has been designed for use with cleaning agents supplied or recommended by
the manufacturer. he use of other cleaning agents or chemicals may adversely affect the
safety of the appliance.
• Disconnect from electrical power supply before carrying out user maintenance.
• o ensure the appliance safety only use original spare parts from the manufacturer or ap-
proved by the manufacturer.
• High pressure hoses, fittings and couplings are important for the safety of the appliance. Only
use hoses, fittings and couplings recommended by the manufacturer.
• Do not use the appliance if a supply cord or important parts of appliance are damaged, e.g.
safety device, high pressure hose and trigger gun.
• he appliance is only intended for cleaning outdoors.
• Appropriate ear protection must be used.
• Never use the machine in an environment where there could be a danger of explosion. If any
doubt arises, please contact the local authorities.
• It is not allowed to clean asbestos containing surfaces with high pressure.
• his high pressure washer must not be used at temperatures below 0°C.
• Never let any persons stay under the product when stored on the wall.

4
B
Technical Da a.
Product segment: Consumer
POSEIDON 2-29
POSEIDON 2-29 XT
POSEIDON 2-25
POSEIDON 2-25 XT
POSEIDON 2-22
POSEIDON 2-22 XT
Specification ar Max 160 Max 150 Max 130
Voltage V 230 230 230
Frequency Hz 50 50 50
Power consumption A 14,5 12,6 10
Power a sor ed kW 3,3 2,9 2,3
Num ers of revolutions min-1 2800 2800 2800
Water volume, HP l / min. 8,8 8,4 7,2
Pump pressure ar 135 ±9 126 ±9 102 ±9
Nozzle pressure ar 114 ±9 105 ±9 82 ±9
Opening pressure ar 145 ±10 140 ±10 135 ± 15
Retaining time min. 5 5 5
Oil contents ml 80 80 80
Oil type BP Bartran HV68 BP Bartran HV68 BP Bartran HV68
Max water inlet temperature °C 60 60 60
Max water inlet pressure ar 10 10 10
High pressure hose length m 10m 10m 10m
Suction height m 0,5 0,5 0,5
Electric ca le m 5m 5m 5m
Insulation class F F F
Tightness IPX5 IPX5 IPX5

5
C
S ruc ure.
POSEIDON 2, CABINET PARTS OVERVIEW

6
C
S ruc ure.
Mo or / pump uni overview including assembly orque and glue
specifica ion.

7
D
Service / Repair.
Dismoun ing / moun ing of fron cabine .
1. Remove the 2 torx 20 screws from the hose reel (Fig 1)
2. Loosen the 2 torx 20 screws from the bottom of the machine and push them completely
in. (Fig 2)
NOTE: No electrical tool allowed to loosen the 2 screws from the bottom, as the thread /
slider can be damaged if too high torque is used.
he front cabinet can now be removed.
Note: press cabinet before tightening screw!
Fig. 1
Fig. 2

8
D
Service / Repair.
Disassembly / assembly of swi chbox and mo or cover.
1. Remove the torx 20 screw from the cable relief and the torx 20 screw from the electrical
box (Fig 1)
2. Remove the motor plug, capacitor plug and earth wire. (Fig 2)
Fig. 1
Fig. 2

9
Fig. 2
D
Service / Repair.
Disassembly / assembly of swi chbox and mo or cover.
1. he capacitor is fixed with cable tie. Marking has to be visible. he cable tie has to be
placed as indicated by the arrow (Fig. 1)
2. Cables and wires are mounted as shown (Fig. 2). he earth wire has to be attached as
shown and placed around the tube (Fig. 2)
Fig. 1

10
D
Service / Repair.
Fig. 2
Disassembly / assembly of swi chbox and mo or cover.
1. Remove the detergent hose from the hose connection (Fig 1)
2. Remove the internal high pressure hose and the 6 torx screws (Fig 2)
3. he motor cover can now be removed and the motor / pump unit can be lifted out of the
cabinet.
Fig. 1

11
D
Service / Repair.
Fig. 1 Fig. 2
Disassembly / assembly of he pump.
1. Remove the 3 pieces 6mm hex screws (Fig 1)
2. he pump can now be removed.
3. Oil level as shown (80ml—Fig 2)
4. Bearing and bearing disk can be mounted both sides up. (Fig 3)
5. hin disk directly on wobble disk, the bearing disk and on top the thick disk.
Fig. 3

12
D
Service / Repair.
Fig. 1
Disassembly / assembly of he pump.
When a failure on bearing parts is observed, it is important that all bad parts and debris from
the parts must be removed:
1. Dismount the wobble disc by loosening the screw. (Fig 1)
2. Examine all parts including D-bearing for damages, damaged parts must be replaced.
3. It is very important that the oil must be changed.
4. It is very important that the D-bearing in the motor must be cleaned with compressed air
or petrol to clean out parts/dust from the damaged parts, that can have been moved in
to the D-bearing.
5. When the D-bearing is cleaned it must be easy to rotate smoothly, without any peek-
friction when rotating slowly.
6. All parts must be clean when assembling, applies to both new and reused parts.

13
D
Service / Repair.
Fig. 1
Fig. 2
Disassembly / assembly of he pump.
he pump head can be removed from the cylinder block with a screw driver.
1. For the 3 valves in the cylinder head, orientation as shown on Fig. 1 must be made dur-
ing the mounting process
2. For the 3 valves in the cylinder block the ribs on the valve body must be oriented as indi-
cated on Fig. 2.

14
D
Service / Repair.
Fig. 1
Fig. 2
Disassembly / assembly of he pump.
1. After mounting, the oil-seal must be greased, with Silicone grease (Unisilkon) inside
Ø14 hole. (Fig. 1)
2. After the U-sleeve is mounted correctly inside the cylinder head the U-sleeve must be
greased with Silicone grease (Unisilkon) inside Ø14 hole where the piston is moving and
on the on plane surface of the U-sleeve (Fig. 2)
Note: Additional disk to be placed on top of water sealing if ceramic pistons are used.

15
D
Service / Repair.
Fig. 1
Fig. 2
Disassembly / assembly of he pump.
1. Mount the pistons
2. Gently place the o-ring around the pistons (Fig. 1)
3. Position the o-ring directly on top of the oil seal with a flat tool with no sharp edges
(Fig. 2).

16
D
Service / Repair.
Fig. 1
Disassembly / assembly of he pump.
1. Check that the o-ring is correctly placed around the piston.
2. Mount the thrust collar in the groove as shown in fig. 2.
Note: Remember to mount the o-ring around the piston before to mount the thrust collar.
Fig. 2

17
D
Service / Repair.
Fig. 1
Disassembly of he brass connec or (inside he ou le ).
1. Use M8 puller 1220103 to dismount the brass connector (Fig 1)
2. he injector can be removed with M6 puller, 31000190 (Fig 2)
Fig. 2

18
D
Service / Repair.
Fig. 1
Disassembly / assembly of s ar / s op valve.
1. Dismount the U-pin (Fig 1)
2. he start / stop valve can now be removed
3. Use the M8 puller, 1220103 to dismount the ball seat (Fig 2)
Note: his operation can be done without removing the motor / pump unit from the cabinet.
Fig. 2

19
D
Service / Repair.
Valve adjus ing
1. urn the flow regulation to maximum flow
2. Adjust the spring guide (13) by the following procedure until the test manometer shows a
standby pressure according to “ echnical data” page 4.
A. Adjustment of the standby pressure:
1. Let the machine be operating at the specified working pressure and
flow according to the “ echnical data” page 4.
2. Stop the machine by releasing the trigger and read the standby pres-
sure.
3. Start the machine again by activating the trigger.
4. hen adjust the spring guide (13) until the standby pressure is around
the nominal value according to the “ echnical data” page 4.
5.Repeat “1” to “4” Until the standby pressure is approximately the nomi-
nal value according to the “ echnical data” page 4.
6. Lock the adjustment with the counter nut (14).
3. Activate the trigger for 15 s, and let the machine operate according to data in the “ echnical
data” page 4.
4. Release the trigger, wait 5 s and read the standby pressure at the test manometer.
5. If necessary, repeat point A (1-6) in order to achieve the specified standby pressure.

20
D
Service / Repair.
Fig. 1
Micro switch adjustment
The micro switch system must be ad usted at working pressure according to the “Technical data”
Page 4 according to the below procedure to ensure full functionality and lifetime.
1. urn the flow regulation to maximum flow.
2. he machine must be running high pressure, and flow, according to the specification in the
“ echnical data” Page 4.
3. Screw the M5 nut on the adjustable key until there is a clearance between key and micro
switch (green), which can be felt by moving the arm backwards and forwards, with a light
touch from a finger (yellow arrow)
4. Unscrew the M5 nut (counter-clockwise) carefully, until the key just touches micro switch,
the clearance must only jus disappears = “0 preload and 0 clearance”.
5. Carefully turn the M5 nut 90°±30° clockwise. his will move the key approximately 0.2mm,
away from the micro switch.
6. Check that there is a clearance between the key and the micro switch.
7. Apply Loctite 454 on the key end to lock the M5 nut. hen the key adjustment is finished.
8. Check as last point that there still is clearance between the key and micro switch.
Fig. 2