Nilfisk-Advance C 120.4 Operating instructions

Repair Manual
C 120.4 - C 120.4 X-Tra
E 130.2 - E 130.2 X-Tra
E 140.2 - E 140.2 X-Tra

2
2 Index
A. Saftey Issues 3
B. Technical data 4
C. Construction 5-9
D. Service /Repair 10-18
F.Diagram 29-30
E. Operation. 19-28

3
3 A
Safety Issues.
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
operate 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

4
4 B
Technical Data.
Product segment: Consu-
mer C 120.4 X-tra E 130.2 X-tra E 140.2 X-tra
Specification bar 120 130 140
Voltage V 230 230 230
Frequency Hz 50 50 50
Power consumption A 9 9,5 10
Power absorbed KW 1,7 2,1 2,1
Numbers of revolutions rpm./ min. 2800 2800 2800
Water volume, HP l / min. 6 6,9 6,5
Pump pressure bar 100 112 121
Nozzle pressure bar 94 106 115
Opening pressure bar 140 140 140
Retaining time min. 5 5 5
Oil contents ml 110 110 110
Oil type Bartran HV46 Bartran HV46 Bartran HV46
Max water inlet temperatu-
re C 40 60 60
Max water inlet pressure bar 10 10 10
High pressure hose length m 6m Textile 8 or 9m textile 9m textile or
10m steel
Suction height m 1m wet 1m wet 1m wet
Electric cable m 5m 5m 5m
Insulation class F F F
Tightness IPX5 IPX5 IPX5

5
5 C
Construction.
C 120.4 Construction of cabinet parts.

6
6 C
Construction.
E 130.2 X-tra - E 140.2 X-tra Construction of hose reel.

7
7 C
Construction.
E 130.2 - E 140.2 Construction of cabinet parts

8
8 C
Construction.
C 120.4 E 130.2 E 140.2 Construction of motor pump unit.

9
9 C
C 120.4 X-tra - E 130.2 X-tra - E 140.2 X-tra Construction of motor pump unit.
Construction.

10
10 D
Service / Repair.
Dismounting / mounting of front cabinet and front chassis.
Remove 4 torx Screws (TX 20 )(fig.1) and then 2 torx Screws (fig.2).Then use a small
screwdriver to tip out the cabinet. (fig.3).Remove 6 torx screws in the front chassis (fig.4)
and 2 screws at the bottom (fig.5)
Fig.1 Fig.2
Fig.3
Fig.4
Fig.5

11
11 D
Service / Repair.
Fig.2 Fig.3
Dismount / Mounting of Motor cover.
Remove 4 torx (TX20) screws . (fig.1 ) When mounting the motor cover
and front chassis be sure that the wire are in the right position. (fig.2 and 3)
Fig.1

12
12 D
Service / Repair.
Fig.1 Fig.2
Fig.4
Fig.3
Dismounting / Mounting of S/S valve.
Remove micro switch box carefully with 2 screw driver ( fig.1) and then
the S/S valve (fig.2.) Mount the micro switch (fig.3) and press down the
micro switch arm with a screwdriver (fig 4).

13
13 D
Service / Repair.
Fig.1
Dismounting / mounting of oil seal.
Tip up the oil seal with a screwdriver and discard (fig.1).
Clean up and lubricate.
Mount a new oil seal.

14
14
Use loctite 271— torque 20 Nm
Torque 16 Nm
Torque 10 Nm
D
Service / Repair.
Fig.2Fig.3
Dismounting / mounting of suction and pressure valves.
Remove valve seat with tool and discard them (fig.1 and 2). Mount new valves
with a slight finger pressure and special tool no.1220103 (fig 3 and 4).
Clean up and lubricate before mounting.
Fig.3 Fig.4
1
2
3
4
When mounting the
cylinder head you
have to tighten the
bolts in this order see
(fig.5)
Fig.5

15
15 D
Service / Repair.
Wobble Disc marking and assembling
120 bar ”1-1” or ”6,6°-1”
130-140 bar ”2-1” or ”7,5°-1”
Fig.1
Fig.2
Fig.3
Bearing track on fig.1 and fig 2 are different.
(inner diameter are different)
Bee sure it fits to the. wobble disc.

16
16 D
Service / Repair.
Dismounting / Mounting of Easy start valve.
Remove the easy seat with a small hook (fig.1) then remove the
o-ring underneath the seat ,with a small screwdriver .
Mounting : place the ball on the end of the spring (fig.2), be sure
the the ball are in the right position when mounting plug.
Regarding the mark on the seat,
See section ”Operation guide”
2.5 Handle release
Fig.1 Fig.2
Fig.1

17
17 D
Service / Repair.
Torque.

18
18
Nilfisk D
Service / Repair.
2,1 KW Motor
1. 7,1 ohm.
2. 8,9 ohm.
3. 1,8 ohm.
1,7 KW Motor
1. 6,1 ohm.
2. 8,9 ohm.
3. 2,8 ohm.
Guidance of measuring of electrical motor.
32
1
Capacitor Plug. Power supply Plug.

19
19 E
Operation guide.
In this situation the position of the parts are following:
The none return valve( A) is closed by the spring (B) as there is no pressure
on either of the sides. The easy start ball valve (C) is pressed against the up-
per seat by the easy start spring (D) The s/s spring pressed the s/s piston,
and the Activation arm (E) is taken to the front position the micro switch (F) at
the “switch on” position, the motor (G) will start. The handle (H) is released,
No water flow from the nozzle.
Water flow: None

20
20 E
Operation guide.
1. The none return valve (A) is closed by the spring (B) as the pressure on the front
side is still not high enough to open it.
2. The easy start ball valve (C) moves a little from the upper seat as the easy start
spring (D) is pressed a little.
3. The s/s spring pressed the s/s piston, and the Activation arm (E) is taken to the
front position, the micro switch (F) at the “switch on” position, the motor (G) is running.
4. the handle (H) is released, and no water flow from the nozzle.
Water flows:
1. From the water inlet to the pump.
2. From the pump through the ball valve to the water inlet.