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SM_MC_6P Ver.2.0_2021

Service / Repair

42

F

Pic. F14: Pressure and suction valves

Pic. F15: Pressure and suction valves

•

Lubricate by replacement of valves

Picture of piston guides

•

The pressure valves can easily be taken
out of the cylinder head.

•

Replace with new parts if necessary.

Pic. F16: Cylinder block

Cylinder Block

Pic. F17: Oil Seals

•

Removal of cylinder block

•

Disassemble the oil sleeves using an

adequate puller or a screwdriver.

•

Be careful not to damage the surface of

the cylinder block.

NEW !

Pump valves

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Содержание 107146750

Страница 1: ...MC 6P SERVICE MANUAL...

Страница 2: ...d 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 inform...

Страница 3: ...D E F G H I Special tools Spare parts Wiring diagrams Adjustment Test Service Repair Troubleshooting Function Construction Technical data Safety instructions 55 48 54 45 47 38 44 35 37 26 34 19 25 5...

Страница 4: ...ly allow the high pressure 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 an...

Страница 5: ...t voltage V 1500 HV insulation resistance min M 1 Earth circuit resistance max 0 2 Speed rpm 1740 Electric diagram item number 106420563 UNIT DATA Nozzle Size NT 0680 Max inlet temperature suction C F...

Страница 6: ...M 1 Earth circuit resistance max 0 2 Speed rpm 1450 Electric diagram item number 106420552 UNIT DATA Nozzle Size NT 0475 Max inlet temperature suction C 50 Max inlet temperature primed C 70 Max inlet...

Страница 7: ...ge test voltage V 1500 HV insulation resistance min M 1 Earth circuit resistance max 0 2 Speed rpm 1450 Electric diagram item number 106420552 UNIT DATA Nozzle Size NT 0700 Max inlet temperature sucti...

Страница 8: ...ltage test voltage V 1500 HV insulation resistance min M 1 Earth circuit resistance max 0 2 Speed rpm 1740 Electric diagram item number 106420556 UNIT DATA Nozzle Size NT 0700 Max inlet temperature su...

Страница 9: ...e test voltage V 1500 HV insulation resistance min M 1 Earth circuit resistance max 0 2 Speed rpm 1450 Electric diagram item number 106420552 UNIT DATA Nozzle Size NT 0950 Max inlet temperature suctio...

Страница 10: ...e test voltage V 1500 HV insulation resistance min M 1 Earth circuit resistance max 0 2 Speed rpm 1450 Electric diagram item number 106420552 UNIT DATA Nozzle Size NT 0475 Max inlet temperature suctio...

Страница 11: ...test voltage V 1500 HV insulation resistance min M 1 Earth circuit resistance max 0 2 Speed rpm 1450 Electric diagram item number 106420552 UNIT DATA Nozzle Size NT 0700 Max inlet temperature suction...

Страница 12: ...age test voltage V 1500 HV insulation resistance min M 1 Earth circuit resistance max 0 2 Speed rpm 1450 Electric diagram item number 106420556 UNIT DATA Nozzle Size NT 0700 Max inlet temperature suct...

Страница 13: ...voltage test voltage V 1500 HV insulation resistance min M 1 Earth circuit resistance max 0 2 Speed rpm 1450 Electric diagram item number 106420552 UNIT DATA Nozzle Size NT 0950 Max inlet temperature...

Страница 14: ...ltage test voltage V 1500 HV insulation resistance min M 1 Earth circuit resistance max 0 2 Speed rpm 1450 Electric diagram item number 106420552 UNIT DATA Nozzle Size NT 0700 Max inlet temperature su...

Страница 15: ...tage test voltage V 1500 HV insulation resistance min M 1 Earth circuit resistance max 0 2 Speed rpm 1450 Electric diagram item number 106420552 UNIT DATA Nozzle Size NT 0475 Max inlet temperature suc...

Страница 16: ...High voltage test voltage V 1500 HV insulation resistance min M 1 Earth circuit resistance max 0 2 Speed rpm 1450 Electric diagram item number 106420552 UNIT DATA Nozzle Size NT 1500 Max inlet tempera...

Страница 17: ...igh voltage test voltage V 1500 HV insulation resistance min M 1 Earth circuit resistance max 0 2 Speed rpm 1450 Electric diagram item number 106420552 UNIT DATA Nozzle Size NT 1500 Max inlet temperat...

Страница 18: ...A High voltage test voltage V 1500 HV insulation resistance min M 1 Earth circuit resistance max 0 2 Speed rpm 1450 Electric diagram item number 106420552 UNIT DATA Nozzle Size NT 1500 Max inlet tempe...

Страница 19: ...Overview MC 6P Lance Lance holder top Water inlet Filter ON OFF switch Lance holder bottom Water outlet Pressure gauge View for oil container Detergent valve Detergent Bottles Cabinet lock MC 6P Cabin...

Страница 20: ...et Filter Electrical box Water regulation D bearing cover Detergent valve ON OFF switch Pump oil lid Pump oil container Cylinder block Overview MC 6P 0 Stop I ON M Manual Manual means the Auto Start S...

Страница 21: ...nce holder top Water inlet Filter Water outlet In this case with hose reel a HP hose is going from pump outlet to hose reel View for oil container Detergent Bottles Cabinet lock Lance holder bottom ON...

Страница 22: ...lator D bearing cover ON OFF switch Pump oil lid with level sensor Pump oil container Cylinder block Overview MC 6P 120 1920FA Voltage switch The main differences between the three MC 6P 120 bar model...

Страница 23: ...6P Ver 2 0_2021 23 C Water regulator Flow piston By pass control pistion Injector non return valve NOT on 120 bar models Reed contact Unloader housing Pic C4 By pass valve MC 6P By pass valve FA Model...

Страница 24: ...ecial pi ston for 120 bar models Washer for spring Spring Special return spring for 120 bar models Cylinder block Thrust collar Oil seals Cylinder head Water inlet Pressure valve Secondary seal Suppor...

Страница 25: ...0_2021 25 C Motor complete Fan Oil container End bearing cover D bearing cover Lid for oil container Oil seal Oil plug Needle bearing Cylindrical roller bearing Bearing track Wobble disc Fan cover Bea...

Страница 26: ...26 SM_MC_6P Ver 2 0_2021 Function D Electrical System E box Contactor PCB Terminal block E box PCBA...

Страница 27: ...but no power on the PCB Machine is still off Main switch S1 turned into position 1 ON Spray handle is closed No water flow out of pump if B4 is low and MT motor winding temp below 160 C or 320 F is c...

Страница 28: ...28 SM_MC_6P Ver 2 0_2021 Function D Operation electrical System Datalogger connection...

Страница 29: ...29 SM_MC_6P Ver 2 0_2021 Function D By Pass valve system MC 6P By pass valve components for the MC 6P models not 120 bar models By pass valve for MC 6P has internal injector system...

Страница 30: ...SM_MC_6P Ver 2 0_2021 Function D By Pass valve system_MC 6P 120bar models By pass valve components for the MC 6P 120 bar models By pass valve for MC 6P 120 bar models do not have internal injector sys...

Страница 31: ...seat area This is where the water pressure is stopped from flowing from the pressurized side to the pump water inlet side When the by pass valve is in by pass mode the cone is lifted from the seat an...

Страница 32: ...re is lost on purpose so we can control the position of the stem lower piston Higher pressure before injector nozzle than after So the pressure in the channel area 5 below lower piston 10 is lower tha...

Страница 33: ...e the pressure in area 1 2 3 4 5 6 will be the same Because of a larger area on the lower side of piston 10 than on the upper side together with the area on the stem close to the cone seat 8 the lower...

Страница 34: ...re is no flow through the flow switch the flow piston will in this MC 6P design drop down due to gravity and the piston moves away from the reed switch and the reed switch will open and break the circ...

Страница 35: ...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 h...

Страница 36: ...ge 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 high pressure side...

Страница 37: ...om Irregular working pressure Cause Injector nozzle 4 is worn Remedy Replace injector nozzle Symptom Low working pressure Cause By pass valve kit 1 worn and leaks water Remedy Replace By pass valve ki...

Страница 38: ...NV14 14 Nm Detergent studs NV 17 20 Nm Venturi NV 8 1 4 Nm Cylinder Head 8 M10 screws for pump assy Unbracho 8 30 Nm Thrust collar Screw driver N A Outlet valves Pull out tool N A Inlet valves Mandrel...

Страница 39: ...chine ID Plate Pic F2 Cabinet Pic F3 E box 1 1 The lid for the electrical box is assembled with 2 x torx T20 screws Remove the screws and push the lid back wards to open the E box The oil container is...

Страница 40: ...not to damage the surface inside when disassembling the thrust collar Inspect the thrust collar for damages before assembling Pic F8 Thrust collar Pic F7 Valve housing Pic F9 Cylinder head Pic F10 Cy...

Страница 41: ...Drop do not knock it into the right position Pic F 11 Header ring If the header ring is mounted wrongly and not according to instruction there is a big risk of damaging the header ring and parts of i...

Страница 42: ...cture of piston guides The pressure valves can easily be taken out of the cylinder head Replace with new parts if necessary Pic F16 Cylinder block Cylinder Block Pic F17 Oil Seals Removal of cylinder...

Страница 43: ...sleeves with soapy water Assemble the sleeves using a box spanner Place seals pistons and springs as shown Wobble disc The woble disc is fastend to the motor shaft with a circlip Pic F20 Wobble disc...

Страница 44: ...n the bearing is damaged always replace the complete D bearing cover Pic F25 Woble disc system Motor shaft with lubrication holes for better lubrication of the woble disc system Make sure to clean the...

Страница 45: ...on test manometer MAKE SURE high pressure nozzle is new OK Check you have the correct pressure shown on the MAHCINES manometer Same pressure as written on the machine ID plate Read the working pressur...

Страница 46: ...with out pressure do the following to ad just the water regulator Turn gently the small brass shaft 1 counterclockwise until it JUST touches the surface of the plug 2 Push down the blue handle 3 on t...

Страница 47: ...venturi tube NV14 14 Nm Detergent studs NV 17 20 Nm Venturi NV 8 1 4 Nm Cylinder head 8 M10 screws for Unbracho 8 30 Nm Thrust collar Screw driver N A Outlet valves Pull out tool N A Inlet valves Man...

Страница 48: ...Wiring diagrams SM_MC_6P Ver 2 0_2021 48 H 106420544 1 ph 230V...

Страница 49: ...Wiring diagrams SM_MC_6P Ver 2 0_2021 49 H 106420552 3 ph STAR w PCBA...

Страница 50: ...Wiring diagrams SM_MC_6P Ver 2 0_2021 50 H 106420554 3 ph DELTA w PCBA...

Страница 51: ...Wiring diagrams SM_MC_6P Ver 2 0_2021 51 H 106420556 3 ph STAR or DELTA w PCBA...

Страница 52: ...Wiring diagrams SM_MC_6P Ver 2 0_2021 52 H 106420558 1 ph 230V w PCBA...

Страница 53: ...Wiring diagrams SM_MC_6P Ver 2 0_2021 53 H 106420559 1 ph Model...

Страница 54: ...Wiring diagrams SM_MC_6P Ver 2 0_2021 54 H 106420564 3 ph STAR DELTA...

Страница 55: ...Pressure Gauge Adjustment safety valve opening pres sure 301000383 DATALOGGER Pulling out data from PCBA Additional Materials 41455 Grease 15 C to 130 C Valve grease 31001229 Pump oil Alphasyn T 150...

Страница 56: ...56 SM_MC_6P Ver 2 0_2021 Notes Notes...

Страница 57: ...Nilfisk A S Industrivej 1 9650 Hadsund Denmark www nilfisk com...

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