MH 6P - Pressure washer NILFISK - Free user manual and instructions

USER MANUAL MH 6P NILFISK

..................................................................................................................................................... 134Original instruction 3 1 Symbols used to mark instructions WARNING & Safety instructions in these operating instructions which must be ob- served to prevent risks to persons are marked with this danger symbol. Please note the warning signs placed on the machine. Before starting up your high- pressure washer for the first time, instructions must be read through carefully. Save all the instructions for later use. Instructions contains:

Part 1: Safety instructions. Part 2: Instructions for use.

This symbol marks safety instructions related to connection of the machine to water mains. Do not inhale fumes Rebounding object Hot surface Steam Electrical components Dangerous voltage The jet must not be directed at persons, animals, live electrical equipment or the cleaner itself. Do not direct the jet towards yourself or towards other persons in order to clean clothes or footwear. 2 Safety instructions. For your own safety WARNING! The high pressure washer may only be used by persons instructed in its use and who have been expressly authorised to do so.

• This machine is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities or lack of experience and knowledge.

• Machines shall not be used or maintained by children. Children should be supervised to en- sure they do not play with the appliance.

• Use of this machine is subject to the applicable local safety regulations and proper use. Please refer to Opera ting Instructions for recommended use, maintenance and problem solving.

• Never spray electrical equipment with water: danger for persons, risk of short-circuiting

• Never detach the high pressure hose while the machine is in operation. 150°COriginal instruction4 HOT WATER: Danger of scalding! Never dismount high-pressure hoses at water tempera- tures above 50°C.

• High temperature on the lance and hose after hot water use. 150°C IMPORTANT: Prior to dismounting of the high-pressure hose, the machine should be cooled down. After cooling down, stop the machine and disconnect the water supply. Then acti- vate the trigger of the spray handle to relieve the high-pressure hose of pressure.

• Beware of hot water and steam discharge up to 150°C when operating in steam stage.

• After use of the hot water/steam function the high-pressure cleaner must be flushed with cold water for about 1 min. High temperature on the lance and hose after hot water use. 3 Before starting the cleaner DO READ INSTRUCTIONS FOR USE BEFORE USE! Before use, check that the machine is safe and in proper condition and in upright posi- tion on a plain and stable ground to ensure stability. Regularly check whether the power cord is damaged or shows signs of ageing. WARNING! Do not use the machine if a supply cord or important parts of the ma- chine are damaged, e.g. safety devices, high pressure hoses , spray handle or lance.

• Check the rated voltage of the machine before connecting it to the mains power supply. En- sure that the voltage shown on the rating plate corresponds to the voltage of the local mains power supply.

• For safety reasons, hoses, spray lances and other accessories should always be thawed prior to use. MIN: 2°C/ 36°F. NOTE: If your 3-phase cleaner was supplied without a plug, have it fitted with a suitable 3-phase plug with earth conductor. WARNING! Before use of water jet, assure that the high pressure hose with the spray handle is safely connected by an audible click to the lance

• High-pressure water jets can be dangerous if misused. The jet must not be directed at per- sons, animals, live electrical equipment or the cleaner itself.

• Do not direct the jet towards yourself or towards other persons in order to clean clothes or footwear.

• Do not use the cleaner when other people without appropriate protective clothing are in the working area. Wear appropriate protective clothing, safety gloves, boots, hearing aids and hel- mets with visor and eye protection.

• When operating the spray handle, kickback forces are produced at the spraying device and when the spray lance is held at an angle, a torque is also created. The spray handle and spray lance must therefore be held firmly with both hands.

• Check that cleaning will not result in dangerous substances (e.g. asbestos, oil) being washed off the object to be cleaned and harming the environment.

• During use of high pressure cleaners, aerosols may be formed. Inhalation of aerosols can be hazardous to health. The employer shall perform a risk assessment in order to specify the nec- essary protective measures regarding aerosols, depending on the surface to be cleaned and its environment. Respiratory masks of class FFP 2, an equivalent or higher are suitable for the protection against hydrous aerosols.

• This machine has been designed for use with the cleaning agent supplied or recommendedOriginal instruction 5 by the manufacturer. The use of other cleaning agents or chemicals may adversely affect the safety of the machine.

• Risk of explosion – Do not spray flammable liquids. Do not clean delicate parts made of rub- ber, fabric, etc. with the jet nozzle. Keep some distance between the jet nozzle and surface in order to prevent the surface from damage. Combustion engine powered machines: Do not use combustion engine powered machines indoors unless adequate ventilation is assessed by national labour authorities.

• Ensure that any exhaust emissions are not in the vicinity of air intakes.

• Incorrect fuels shall not be used as they may prove hazardous.

• Do not operate belt-driven units without attached belt cover.

• The machine must not be used in flammable or explosive environments. When using the ma- chine, it must stand at least 1 m from buildings, etc. 4 Transport For safe transport in and on vehicles we recommend to prevent the equipment from sliding and tilting by fixing it with belts. For transport and storage at temperatures around or below 0°C, anti-freeze should be drawn into the pump beforehand (Please refer to Operating Instructions). 5 Water connection If the machine does not have a watertank, the machine is only allowed to be connect- ed with the potable water mains, when an appropriate backflow preventer has been installed, Type BA, according to EN 60335-2-79. The backflow preventer can be ordered through Nilfisk Servicecenter. The length of the hose between the backflow preventer and the machine must be at least 12 meters (min diameter 3/4 inch) to absorb possible pressure peaks. Operation by suction (for example from a rainwater vessel) is carried out without backflow preventer. The suction set can be ordered through Nilfisk Servicecenter. WARNING! Water that has flowed through backflow preventer and high pressure washer is considered to be non-potable. 6 Electrical connection The connection of the electrical supply must be performed by a qualified electrician and comply with IEC 60364-1. PLEASE NOTE: For machines above 16A select main circuit breaker ”C” or “D”, based on site installation. The earth wire must be connected to correct po- tential and it is recommended that the electric supply to this machine should include either a residual current device or another device that will protect the user against indirect contact. The electrical installation to the machine must be according to local regulations. Switching on the cleaner may cause voltage fluctuations. Voltage fluctuations should not occur if the impedance at the transfer point is less than 0.15. If in doubt ask your local electricity supplier. WARNING! Inadequate extension cords can be dangerous. If an extension cord is used, it shall be suitable for outdoor use, and the connection plug has to be kept dry and off the ground. It is recommended that this is accomplished by means of a cord reel, which keeps the socket atOriginal instruction6 least 60mm above the ground. Always unwind cord from the reels completely to prevent the power cord overheating. Disconnect the power cord from the power source by pulling the plug only (do not pull or tug the power cord). 7 Safety devices

• Thermal sensor: A thermal sensor protects the motor against overloading. The machine will restart after a few minutes when the thermal sensor has cooled.

• Locking device on spray handle: The spray handle features a locking device. When the pawl is activated, the spray handle cannot be operated. HOT WATER:

• Safety valve: Unacceptably high pressure is fed back without residual pressure via a bypass line into the intake line of the pump when the safety device is tripped. The safety valve is set and sealed at the factory and must not be adjusted.

• Thermal limiter: Self resettable temperature switch is mounted in the water tank. If tempera- ture exceeds 85°C (185°F), the machine will shut down. The machine can be restarted after cooling down.

• EXH thermal sensor: A thermal sensor is mounted in the exhaust pipe. If the temperature exceeds a pre-set temperature value, the heat function stops and a manual reset is needed. COMBUSTION ENGINE POWERED MACHINES:

• Thermal dump valve: Thermal valve set to open at 60°C/140°F. It will dump the water on the ground. It is to protect the pump and seals.

• Thermal switch: A thermal switch is mounted on the pump/valve. If it detect a temperature exceeding a pre-set value it will stop the engine. It is to protect the pump and seals. 8 Maintenance and repair WARNING! Always switch off the mains disconnecting switch when leaving the machine unattended.

• Always remove the plug from the mains plug socket before carrying out maintenance work or cleaning of the machine. Combustion engine powered machines: Note! Before cleaning and maintenance of the high pressure washer always remove the spark plug cable (gasoline) or cut off the fuel supply (die- sel) and when it applies disconnect the battery (gasoline and diesel). Carry out only the maintenance operations described in the operating instructions. To ensure machine safety, use only original Nilfisk spare parts. Do not make any technical modifications to the high-pressure washer. Ensure that the machine is regularly serviced by authorized Nilfisk dealers in accordance with the maintenance plan. Failure to do so will invalidate the warranty. If the battery is leaking return it to a Nilfisk Service Center. The battery must be removed from the machine before the machine is scrapped. The machine must be disposed of properly, because of the presence of toxic-harmful materials (batteries, etc.), which are subject to standards that require disposal in special centers.Original instruction 7 CAUTION! High-pressure hoses, fittings and couplings are important for the safety of the cleaner. Use only high-pressure spare parts approved by Nilfisk!