C 100.
7
                                                           C 105.7
                                                           C 110.7
                                                   C 120.7 - C 120.7 X-TRA
                                                   C 125.7 - C 125.7 X-TRA
                                          Repair Manual ver. 1.1
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                                                                       Index
                             A. Saftey precautions             3
                              B. Technical data                4-5
                              C. Construction                  6-8
                              D.        Service / Repair       9-18
                              E. Torque                        18-20
                              F. Operating supplies            21
                              G. Operation                     22-24
                              H. Diagram                       25
                                                           2
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                                                           Safety precautions.                       A
                                                                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 at temperatures below 0°C.
                       Never let any persons stay under the product when stored on the wall.
                                                                   3
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                                                            Technical Data.                                     B
                                                                                                   C110.7 /
            Product segment: Consumer                                C100.7          C105.7
                                                                                                  C110.7 X-tra
            Specification                                  bar      Max 100         Max 105         Max 110
            Voltage                                         V       220-240         220-240         220-240
            Frequency                                      Hz        50-60           50-60           50-60
            Power consumption                               A          6               6               6
            Power absorbed                                 KW          1,3             1,4             1,4
            Numbers of revolutions                   rpm./ min.   17.500-18.500   17.500-18.500   17.500-18.500
            Water volume, HP                           l / min.        5,3             5,2             5,2
            Pump pressure                                  bar         70              75              80
            Nozzle pressure                                bar       53-63           57-67           62-72
            Opening pressure                               bar       90-110          90-110          90-110
            Retaining time                                 min.        5               5               5
            Oil contents                                    ml         55              55              55
            Oil type                                                ARTL 32         ARTL 32         ARTL 32
            Max water inlet temperature                     C          40              40              40
            Max water inlet pressure                       bar         10              10              10
            High pressure hose length                       m     3m/5m Textile    5m Textile      5m Textile
            Suction height                                  m          0,5             0,5             0,5
            Electric cable                                  m          5m              5m              5m
            Insulation class                                           B               B               B
            Tightness                                                 IPX5            IPX5            IPX5
                                                                           4
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                                                           Technical Data.                                         B
           Product segment: Consumer                               C120.7 / C120.7 X-tra   C125.7 / C125.7 X-tra
           Specification                                   bar           Max 120                 Max 125
           Voltage                                          V            220-240                 220-240
           Frequency                                       Hz             50-60                   50-60
           Power consumption                                A                 6                     6,5
           Power absorbed                                  KW                 1,4                   1,5
           Numbers of revolutions                     rpm./ min.       16.500-17.500           16.000-17.000
           Water volume, HP                            l / min.               5,2                   5,4
           Pump pressure                                   bar                85                    95
           Nozzle pressure                                 bar             66-76                   75-85
           Opening pressure                                bar           110-130                 110-130
           Retaining time                                  min.               5                      5
           Oil contents                                     ml                55                    55
           Oil type                                                      ARTL 32                 ARTL 32
           Max water inlet temperature                      C                 40                    40
           Max water inlet pressure                        bar                10                    10
           High pressure hose length                        m            6m Textile              6m Textile
           Suction height                                   m                 0,5                   0,5
           Electric cable                                   m                 5m                    5m
           Insulation class                                                   B                      B
           Tightness                                                       IPX5                    IPX5
                                                                          5
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                                                           Construction.                          C
                                           C 100.7 - C 105.7 - C 110.7 C 120.7 - C 120.7 X-TRA
                                                           Construction of cabinet parts.
                                                                   (!)
                                            (!) Part 24, 25, 26 are on only used on PG versions
                                                                          6
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                                                           Construction.                    C
                                                             C 125.7 - C 125.7 X-TRA
                                                           Construction of cabinet parts.
                                                                   (!)
                                                                          7
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                                                           Construction.                       C
                                                           C 100.7 - C 105.7 - C 110.7
                                           C 120.7 - C 120.7 X-TRA - C 125.7 - C 125.7 X-TRA
                                                           Construction of pump unit.
                                                                        8
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                                                           Service / Repair.                                   D
                  Dismounting of cabinet rear part on following variants:
                  C 100.7 - C 105.7 - C 110.7 - C 120.7 - C 120.7 X-TRA
                  1.     Tools: Screwdriver PH2
                  2.     Remove the 2 screws (Long) fixing the handle
                  3.     Remove the 6 screws (Short) from the rear side (fig. 3)
                  4.     Don’t remove the accessory bracket and the wheels
                  5.     The cabinet rear part can be removed and there is now access to the motor pump unit
                                               Fig. 1
                                               Fig. 2
                                                                            Long screws
                                                                           Short screws
                                                                   9
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                                                           Service / Repair.                                   D
                  Dismounting of cabinet rear part on following variants:
                  C 125.7 - C 125.7 X-TRA
                  1.     Tools: Screwdriver PH2
                  2.     Remove the 2 screws (Long) fixing the handle (fig. 3)
                  3.     Remove the 6 screws (Short) from the rear side (fig. 4)
                  4.     Don’t remove the accessory bracket
                  5.     Remove the wheels and remove the 2 screws behind the wheel parts (fig. 5)
                  6.     The cabinet rear part can be removed and there is now access to the motor pump unit
                                                Fig. 3
                                                Fig. 4
                                                                            Long screws
                                                                           Short screws
                                                                                            Fig. 5
                                                                   10
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                                                           Service / Repair.                                      D
                  Dismount / mounting of switch box cover and switch box.
                  1.     Remove the 2 screws . Fig 1
                  2.     Release the snap on switch box form the hook on the switch box cover. Fig 2
                  3.     Release the hook on the switch box from the snap on the switch box cover by using a
                         small ordinary screw driver and remove the switch box cover Fig 3
                  4.     Assembly: Ensure that the cover/gasket on the on/off switch is correctly mounted in the
                         hole in the front part and the taps on the switchbox is fixed the slots in the ribs Fig. 4
                  5.     Click on the switch box cover on the switch box and mount the 2 screws
                                               Fig. 1                                           Fig. 2
                Fig. 3
                Fig. 4
                                                                   11
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                                                      Service / Repair.                                      D
                  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. 1
                                                           Fig. 2
                                                                    12
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                                                      Service / Repair.                                         D
                  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. 1                                          Fig. 2
                                        Fig. 3                                            Fig. 4
                                                                  13
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                                                      Service / Repair.                                       D
                  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.
                                     Fig. 1                                          Fig. 2
                                                                14
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                                                           Service / Repair.                                      D
                  Precaution when assembling the switch box.
                  1.     Ensure that the cable and the 2 wires are mounted in the groves Fig. 1
                  Precautions when assembling the machine.
                  1.     Ensure that the gasket for the water inlet is mounted correctly inside the front part before
                         mounting the motor pump unit in the front part Fig. 2
                  2.     Ensure the power cable is not placed on the internal ribs before assembly Fig. 3
                  3.     Ensure the cable relief is mounted correctly Fig. 3
                                                           Fig. 1                                     Fig. 2
                                                                    Fig. 3
                                                                                                      OK
                                               !
                                                                                               OK
                                                                      15
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                                                           Service / Repair.                                  D
                  Assembly of cabinet rear part on following variants:
                  C 125.7 - C 125.7 X-TRA
                  1.     Tools: Screwdriver PH2 Fig. 3
                  2.     Note that screws has different lengths:
                         Short type:8 pcs
                         Long type 2 pcs ( for handle):
                  3.     Mount 2 short screws behind the wheel parts (fig. 5)
                  4.     Ensure that the wheels are mounted correctly by sliding the parts together, before
                         mounting the screws Fig. 6
                  5.     Mount the wheels and mount 6 short screws on rear side (fig. 4)
                  6.     Mount the handle and the 2 long screws to fix the handle (fig. 4)
                                                   Fig. 3                                    Fig. 6
                                                Fig. 4
                                                                            Long screws
                                                                            Short screws
                                                                                                 Fig. 5
                                                                   16
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                                                           Service / Repair.                   D
                  Assembly of cabinet rear part on following variants:
                  C 100.7 / C 105.7 / C 110.7 / C 120.7 / C 120.7 X-TRA
                  1.     Tools: Screwdriver PH2
                  2.     Mount the 6 short screws from the rear side (fig. 3)
                  3.     Mount the handle and the 2 long screws to fix the handle
                                                      Fig. 1
                                                      Fig. 2
                                                                                    Xx/yy mm
                                                                                Xx/yy mm
                                                                   17
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                                                      Torque.                            E
                   Pump torque.
                                                           8 Nm
                                                18 Nm
                                                                  10 Nm          16 Nm
                                                                          8 Nm
                                                                    18
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                                                      Torque.                                          E
                   Cabinet torque.             C 100.7 - C 105.7 - C 110.7 - C 120.7 - C 120.7 X-TRA
                                                                                           2 Nm
                                                                    19
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                                                      Torque.                   E
                   Cabinet torque.             C 125.7 - C 125.7 X-TRA
                                                                         2 Nm
                                                                    20
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                                                           Operating supplies   F
                Recommended oil types:
                The pump is filled with 55 ml ARTL 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
                Special tools:
                Puller for valve seat M4—item number 31000189 (Page 12).
                Puller for valve seat (pressure and suction valve) - item number
                1220103 (Page 13)
                                                                  21
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                                                           Operation.                          G
                  3.0 Start stop System guide
                    3.1 No pressure in system
                    No pressure in system - except inlet pressure 3 bar. Machine switch off.
                                                 Pump
                                                 3 BAR
                 Non return valve
                                                                      Inlet     3 BAR
              Outlet       3 BAR
                    3.2 Start up-pressure build up
                    Machine switch on / Start up – Pressure build up
                                                 Pump
                                                 >5 BAR
                  Non return valve
                                                              Inlet           3 BAR
              Outlet       >5 BAR
                                                                        22
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                                                           Operation.                           G
                    3.3 Pressure build up-opening pressure / close gun
                    Gun close. Pressure build up. Opening pressure. Micro switch is activated
                                                 Pump
                                               100-125 BAR
              Non return valve
                                                                             Inlet      3 BAR
                   Outlet
                   100-125 BAR
                 3.4 Motor stop – Standby pressure
                    Gun close. Motor stops. Pressure in hose decreases to standby pressure.
                    Pump pressure is also standby pressure.
                                                 Pump
                                                15 BAR
                   Non return valve
                                                                         Inlet        3 BAR
              Outlet          15 BAR
                                                                                 23
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                                                           Operation.                            G
                 3.5 Gun is activated
                    Gun is open - Control piston is closed. Micro switch is deactivated. Motor
                    starts.
                                                 Pump
                                            3 BAR
                   Non return valve
                                                               Inlet        3 BAR
              Outlet     3 BAR
                 3.6 Machine run
                    Machine runs (normal working pressure). Gun is open.
                                                 Pump
                                               70-95 BAR
                  Non return valve
                                                                  Inlet     3 BAR
              Outlet     65-90BAR
                                                                       24
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                                                           Wiring Diagram               H
                                                  Wiring and Circuit Diagram
                                                   S1                               M
                                                                               S2
                                                                      25
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