Nilfisk-Advance C 125.4 Operating instructions

Repair Manual
C 125.4
C 130.2
C-PG 130.2 X-TRA

2
Index
A. Safety precautions 3
B. Technical data 4
C. Construction 5-6
D. Service / Repair 7-11
F. Operating supplies 16
E. Torque 14-15
G. Operation 17-19
H. Diagram 20

3
A
Safety precautions.
WARNING!
 High pressure jets can be dangerous. Never direct the water jet at persons
pets, live electrical equipment or the machine self.
 The operator and anyone in the immediate vicinity of the site of cleaning
should take action to protect themselves from being struck by debris dis-
lodged during operation. Wear goggles during operation.
 Never try to clean clothes or footwear on yourself or other persons.
 Do not let children or people who have not read the instruction manual op-
erate the machine.
 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.
 This 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 Data.
Product segment: Consumer C125.4 C130.2/C-PG 130.2
Specification bar Max 125 Max 130
Voltage V230 230
Frequency Hz 50 50
Power consumption A7,5 7,8
Power absorbed KW 1,7 1,8
Numbers of revolutions rpm./ min. 17500-18000 17000-18000
Water volume, HP l / min. 5,3-6,3 5,3-6,3
Pump pressure bar 85-100 90-105
Nozzle pressure bar 79-94 84-99
Opening pressure bar 115-140 115-140
Retaining time min. 55
Oil contents ml 80 80
Oil type LHM 32 LHM 32
Max water inlet temperature C40 40
Max water inlet pressure bar 10 10
High pressure hose length m6m Textile 8m Textile/soft
Suction height m0,5 0,5
Electric cable m5m 5m
Insulation class BB
Tightness IPX5 IPX5

5
C
Construction.
C 125.4 - C 130.2 - C-PG 130.2 X-TRA Construction of cabinet parts.
(!) Part 24, 25, 26 are on only used on PG versions
(!)

6
C
Construction.
C 125.4 - C 130.2 - C-PG 130.2 X-TRA Construction of pump unit.

7
D
Service / Repair.
Dismounting / mounting of front cabinet and accessory storage.
1. Tools: Torx 20 screwdriver and flat screw driver
2. Remove the handle by pressing the 2 * 2 snap locks (fig.2). Loosen one side first and
then the other side.
3. Remove the 2 torx (TX20) screws from the rear side (fig. 3)
4. Loosen the front cabinet from the accessories storage with a screw driver as shown on
fig. 4 from both sides. Take off the accessories storage.—When mounting the accesso-
ries storage to the front cabinet, there should be a “click” from the parts before to mount
the 2 screws.
5. Now the front cabinet can be lifted upwards to dismount it.
Fig. 1 Fig. 2
Fig. 3 Fig. 4 Fig. 5

8
D
Service / Repair.
Dismounting / mounting of Control Unit and/or Wireless Unit (Only PG version).
1. Tools: Torx 9 screwdriver
2. Controle Unit: Disconnect cable to Wireless Unit, Remove the 3 torx (T9) screws , ex-
change Controle Unit, dismount the 3 wires.
Mount and tighten the torx (TX9) screws Torque: max 0,8 Nm, and connect cable to Wire-
less Unit, check the circuit diagram and mount the 3 wires accordingly on the Control Unit
3. Wireless Unit: Disconnect cable to Wireless Unit, slide the Wireless Unit out, exchange
the wireless Unit, slide the Wireless Unit back, and connect cable to Wireless Unit.
Check how to reconfigure the pairing of the machine and the PowerGrip handle at page xx
Fig. 1
Fig. 2 Fig. 3

9
D
Service / Repair.
Exchange battery (cell type: CR 2032 ) in PowerGrip handle.
1. Dismount the screw (Phillips) and the cover to the battery. Dismount the old battery
2. Ensure that the new battery is mounted with the right polarity in the battery holder
3. Mount the battery cover and mount the screw
Pairing of the machine and the PowerGrip handle (Only PG version).
Pairing of the wireless devices is needed if:
 the PowerGrip has been exchanged
 the Wireless Unit in the PowerGrip has been exchanged
 the Control Unit in the machine has been exchanged
 the Wireless Unit has been exchanged in the machine
 Or if the user hasn’t paired the machine and the PowerGrip handle
Pairing of the machine and the PowerGrip handle:
1. Ensure that the machine is not turned on
2. Dismount the battery and mount the battery again
3. Orange indicator on the handle is now blinking in approx. 2 minutes, indicating that the
handle is in pairing mode.
4. Turn on the machine within the 2 minutes of pairing mode, when the orange indicator
stops blinking, the handle and the machine has been paired and can now be operated.

10
D
Service / Repair.
Fig. 1 Fig. 2
Fig. 4Fig. 3
Dismount / mounting of motor cover.
1. Place the cleaner on the side and remove the 5 torx 20 screws. Fig 1
2. Remove the wheel to remove the 5th. Screw if the torx screw dirver is too short. Fig 2
3. Now the cabinet can be removed and the motor / pump unit can be taken out. Fig 3 & 4
The micro switch box is removed by hand. It can be hard but it is just to be “broken” off!
When mounting the MPU again, first step is to mount the micro switch box. This can be done
by hand (alternatively use a plastic hammer), but be very careful to mount in the correct posi-
tion) Then place the MPU inside the cabinet.

11
D
Service / Repair.
Fig. 1
Dismounting / mounting of the start / stop valve.
Fig 1 is showing how the start / stop valve must be assembled.
A special tool is needed in order to take out the seat of the start / stop valve (fig 2)
Please use “Puller for valve seat M4” item number 31000189.
NOTE: the valve seat is no longer usable after using the puller.
Fig. 2

12
D
Service / Repair.
Fig. 1
Dismounting / mounting of water / oil seal and valves.
To change the oil seals, water seals and pressure valve, use a screw driver to dismount the
parts (fig 3 & 4).
Alternatively there is a puller number 1220103 to pull out the valves seats (pressure and
suction valves.
Note: the seat is no longer usable after using the puller
Cleanup and lubricate before mounting!
Fig 1 is showing the pump after opening the cylinder head from the cylinder block.
Fig 2 is showing how all the parts must be assembled into the cylinder head.
Fig. 4Fig. 3
Fig. 2

13
D
Service / Repair.
Fig. 2Fig. 1
IMPORTANT mounting information:
In order to optimize the self suction mode the valve bodies must be positioned correct ac-
cording to the water canals inside the cylinder head. The “leg” of the valve body must not be
placed in front of a canal. Fig 1 is showing the WRONG positioning and fig 2 is showing the
CORRECT positioning.

14
E
Torque.
Pump torque.

15
E
Torque.
Cabinet torque.

16
F
Operating supplies
Recommended oil types:
The pump is filled with 80 ml LHM 32 from the production.
In case of service where the oil must be changed Nilfisk-
Advance recommends to use 80 ml Bartran HV 46.
Alternative oil types that are allowed:
BP, Bartram HV 46
Shell, Tellus T 46
Exxon, Statoil Univis N 46
Mobil Oil Mobil DTE 25
Recommended lubrication:
White grease for o-rings, sealings etc.:
Silicone grease, DOW CORNING(R) 55 O-RING LUBRICANT
Recommended glue:
Loctite 680, alternatively Loctite 270 or 271
Special tools:
Puller for valve seat M4—item number 31000189 (Page 9).
Puller for valve seat (pressure and suction valve) - item number
1220103 (Page 10)

17
G
Operation.
3.0 Start stop System guide
3.1 No pressure in system
3.2 Start up-pressure build up
No pressure in system - except inlet pressure 3 bar. Machine switch off.
Outlet
Inlet
3 BAR
3 BAR
3 BAR
Non return valve
Pump
Outlet
Inlet
>5 BAR
3 BAR
>5 BAR
Machine switch on / Start up – Pressure build up
Non return valve
Pump

18
G
Operation.
3.3 Pressure build up-opening pressure / close gun
3.4 Motor stop – Standby pressure
Outlet
Inlet
130 BAR
3 BAR
130 BAR
Gun close. Pressure build up. Opening pressure. Micro switch is activated
Non return valve
Pump
Outlet
Inl
25 BAR
3 BAR
25 BAR
Gun close. Motor stops. Pressure in hose decreases to standby pressure.
Pump pressure is also standby pressure.
Non return valve
Pump

19
G
Operation.
3.5 Gun is activated
3.6 Machine run
Outlet
Inlet
98BAR
3 BAR
100 BAR
Machine runs (normal working pressure). Gun is open.
Non return valve
Pump
Outlet
Inlet
3 BAR
3 BAR
3 BAR
Gun is open - Control piston is closed. Micro switch is deactivated. Motor
starts.
Non return valve
Pump

20
Wiring Diagram H
Wiring Diagram C 125.4 - C 130.2