User Manual
Contents
1. SPR 8 OPERATION MANUAL Ropka tee 28 Tartu ESTONIA WWW spraytec ee Cu spraytecAneti ee 1 INTRODUCTION Spray unit SPR 8 is an airless high pressure device for spraying of finishing plasters viscous paints and adhesives with a maximum grain size of 0 2 0 3 mm The device can be used to spray both ready made putty and putty mixed on site from powder The spray unit includes a bag wringer for emptying of ready made putty bags Benefits of an airless high pressure spray no compressed air is needed e less dust is generated while spraying e alight and comfortable hose and plaster gun e low noise level e simple to operate 2 SAFETY REQUIREMENTS 2 1 You must read the user manual prior to putting the device into operation 2 2 Only a properly trained operator can use the device Contact the company that sold you the device for information about terms and conditions of such training 2 3 Only a properly trained specialist can perform maintenance of the electrical system of this device 2 4 When the device is in operation no irrelevant persons must be allowed near it 2 5 The device must be operated in compliance with all requirements listed in this user manual 2 6 During operation of the device the employees using it must precisely agree on the division of their functions 2 7 If the device is not in the same room as the spraying operator she he must be notified about container filling and other actions performed w2. tri 7 PR8 00 24 PR8 08 10 PR8 08 01 10128 02 SPR8 08 02 17JSPR8 08 13 Sea SPR8 08 14 SPR8 08 15 1 SPR8 11 01 Pressure release valve bod O na tem 4 2 3 _ 4 6 8 im M 14 15 16 17 18 19 20 21 22 23 24 25 Power transmission ASPR8 00 02 q plate 2 5PR86 00 03 Stator housing 3 5PR8 00 06 _ 6IA22 060 03 Sealing 1 SPR8 00 09 BISPR8 00 10 SISPR8 05 00 10 SPR8 06 00 11 SPR8 07 00 QISPR8 12 01 Rotor 13 5PR8 12 02 Stator 14 SPR8 13 00
3. Install the necessary tip on the spray gun The recommended tips are 645 647 651 Follow the advice of the manufacturer of the material 6 4 Fill the container with the material To empty the bag of putty turn the bag wringer roller to the rear position place the bag on the bag wringer with the bottom toward the roller Turning the roller shaft squeeze the bag end between the roller and the chassis of the wringer Holding on with one hand to the bag handle cut the bag open right underneath the handle Turning the roller shaft squeeze the bag until empty Turn the roller shaft back into the rear position and remove the empty bag Depending on the bag volume 3 4 bags of material will fit in the container During the operation keep constantly track of the amount of material in the container and add material if needed 6 5 Connect the power cable to the mains power with 16 A line protection 6 6 Before starting up the device for the first time as well as after changing the tips the spray pressure and switch off pressure have to be adjusted It is easier to make the adjustments with two people One worker sprays and the other makes the needed adjustments 6 7 When turning on the device turn the reversing switch figure 2 pos 3 to position 1 and press the spray gun s trigger 6 8 The device will start and the pressure will start rising When the manometer figure 3 position 11 shows pressure under 75 80 bar increase the material
4. hose and the pump see point 7 5 2 19 Put the cover on the device container to prevent external items from falling into the container 2 20 Clean the device in due time 2 21 Perform device maintenance and repairs in accordance with the recommendations listed in the user manual Address any guestions you may have to the seller company 2 22 When repairing the device use original spare parts to ensure safe device operation and preserve its warranty 2 23 Have the seller company take care of larger scale repairs 3 TECHNICAL DATA Motor 2 2 kW Electrical requirement 230 V single phase Fuse 16A Speed by frequency inverter changeable Capacity 4 8 l min Pump pressure Max 80 bar Hose 5 8 15m Nozzle standard 647 possible 541 651 Container volume 561 Length 1200 mm Hight 950 mm Width 590 mm Weight 80 kg 4 STANDARD DELIVERY 1 device SPR8 2 material hose 5 8 15 m 3 spray gun SP25 000 4 nozzle 647 5 bag wringer 5 DESCRIPTION OF THE UNIT The housing of the unit is made from stainless steel and the housing of the bag wringer is made from glass fibre The materials used ensure long term durability of the unit For comfortable transportation the unit is equipped with large pneumatic tyres and handles which can be turned downwards to reduce the overall measures of the unit The main assembly units of a plaster spray are the housing of the unit a trans
5. Remove the rotor figure 4 pos 12 and the stator figure 4 pos 13 Use a lubricious substance glycerine at the assembly the new stator and rotor Assemble the elements in reverse order 10 TROUBLESHOOTING Problem Reason Actions When switching on the device the motor has no power to rotate the rotor The motor makes attempts to turn and moves for some degrees and stops The rotor of the pump has stuck in the stator Try switching shortly the device in both directions by turning the reversing switch figure 2 pos 3 into position 1 and thereafter into position 2 When an overload protection activates a red signal lamp will switch on figure 2 pos 5 Disconnect the power cable of the device from the mains power wait 10 seconds and re connect the cable Try starting once again If after several attempts the rotor does not move demount the screw pump from the device clean it place in the vise and try unscrewing manually During assembly of the pump use sliding liquids When pressing on the trigger of the gun the device connected to the mains power will not start The reversing switch figure 2 pos 3 is in the wrong position The plug of the cable of the pressure sensor is not connected to the electric box The system is pressurised the pressure sensor is activated Turn the reversing switch to position 1 Insert the plug of the cable of the pressure sensor into the socket fi
6. ger has been released and shortly after re starts for a moment by itself a ball valve must be cleaned figure 3 pos 20 Disconnect the unit from the power supply press the spray gun trigger and let the material under pressure out from the system To remove residual pressure remaining in the system open the pressure release valve figure 3 pos 23 After having ensured that the system is not under pressure any longer remove the plaster hose from the unit Next unscrew the valve figure 3 pos 13 and remove the spring from the valve figure 3 pos 21 and ball figure 3 pos 20 Clean the ball valve housing figure 3 pos 12 and all disassembled elements Check the condition of the ball and ball seating figure 3 pos 15 16 If needed replace the elements In connection with the above the pressure releasing valve should also be cleaned Unscrew the pressure releasing valve knob figure 3 pos 23 and remove the ball figure 3 pos 24 Clean the valve channels Assemble the elements in reverse order 8 CLEANING 8 1 In the course of operation clean the bag wringer constantly to keep dry material from accumulating there It is easiest to use a damp sponge Keep the exterior surface of the device clean as well It is not allowed to clean the device by pressure washing as the stream of water may damage electrical components 8 2 When you are done working clean the device Clean the container s inside walls with a damp sponge Po
7. gure 2 pos 7 The nozzle of the gun is clogged proceed as described in article Tl The device starts in the condition of insufficient spray pressure The rotation speed of the motor is slow The spray nozzle is big The stator of the pump is worn out The properties of the material do not match the device Increase the speed by turning the speed adjustment knob figure 2 pos 2 clockwise until the required pressure is achieved Install a smaller nozzle Install a new stator Use different material The maximum permitted grain size of the material is 0 2 0 3 mm The device starts the spray pressure exceeds the maximum permitted pressure 80 bar The speed of the motor is too high The spray nozzle is small Reduce the speed of the motor by turning the knob figure 2 pos 2 anti clockwise Install a bigger nozzle The flat spray yet is not continuous Little material in the tank of the device Incorrectly adjusted switch off pressure The spray nozzle is clogged A dd material Adjust see article 6 9 Clean the spray nozzle see article 7 1 When releasing the trigger of the spray gun the pressure increases over the permitted value see article 6 9 Incorrectly adjusted switch off pressure Adjust see article 6 9 The red signal lamp of the electric box figure 2 pos 5 flashes Difficult to start The power cables of t
8. he device are too long and the cross section of the cable is too small The material does not match the device Proceed as described in article 8 6 Use cables 3 x 2 5 mm Use as short power cables as possible Use different material 11 WARRANTY TERMS AND CONDITIONS The producer warrants eguipment produced by it to bee free from defects in material and producing process Producer will for period of one year from the date of sale repair or replace any part of the eguipment proven defect This warranty applies only when the eguipment is installed operated and maintained in accordance with operation manual This warranty does not apply damages or wear caused by abrasion nozzles hoses rotor stator damages caused by misuse accident or negligence during the operation the eguipment foreign substance has fallen into container damage caused by faulty installation of the eguipment damage caused by operating the frozen eguipment damage caused by the pump that has not been cleaned the other malfunctions caused by the user ignoring the requirements stated in this operation manual Serial no Date of sale Figure 1 pressure sensor lubrication nipple pressure release valve support Locknut Figure 2 Electric box Figure 3 Article number PR8 00 01 PR8 00 11 PR8 00 12 PR8 00 16 PR8 00 17 PR18 00 18 PR8 00 19 PR8 00 20 PR8 17 00 w 3 G 6 G 2 4 9 9 6 6 0 R
9. in the container between the seal and the shaft boot of the reduction gear unit Lubrication should be done twice a week Waterproof lubricants are suitable 9 2 The pressure sensor figure 3 pos 10 hose figure 3 pos 9 must be filled with lubricant From time to time lubricant should be added using the same lubricant you used to lubricate the shaft boot of the reduction gear unit Remove the hose from the device screw the lubrication tool included with the device into one end of the hose Pump the lubricant using the lubricator until clean lubricant emerges from the other end of the hose Reassemble the hose 9 3 Axial play between the rotor of the pump figure 4 pos 12 and cardan shaft figure pos 11 shall be 2 3 mm Play can be adjusted by means of a support figure 4 pos 7 Briefly start the unit with an empty tank To do this turn the reversing switch figure 2 pos 3 to position 1 Stop the unit Release the locknut figure 4 pos 8 fixing the support and turn the support so that it touches the end of the rotor Now turn the support in the opposite direction 1 5 turns and fix with a locknut Play has to be adjusted in connection with installing a new screw pump 9 4 Clean the container before you dismantle the screw pump Disconnect the unit from the power supply and release the pressure from the hose and the pump see point 7 5 Screw out the bolts figure 4 pos 10 and remove the stator housing front figure 4 pos 2
10. ith the device 2 8 Only materials specified for the purpose can be used for spraying If necessary address your questions to the material manufacturer 2 9 Means of protection goggles gloves proper work clothing must be used when operating the device 2 10 Never point the spray gun at people 2 11 Having completed the work release pressure from the hose and the spray gun and lock the spray gun trigger follow the instructions in the user manual see point 6 10 Do not leave the pressurised device unsupervised 2 12 If the spray tip of the gun becomes clogged follow the instructions in the user manual see point 7 5 2 13 Prior to putting the device into operation make sure that its hose spray gun tip and other parts are securely attached 2 14 When connecting the unit to the power supply ensure that all network parameters meet the requirements stipulated in the user manual and technical data 2 15 The device can only be connected to the electrical grid using such components that comply with the manufacturer s technical specifications If different standards are in use please contact the product seller 2 16 In case of an emergency stop the unit immediately and disconnect the power cable of the unit from the power supply 2 17 Before performing maintenance and repair work the unit must be disconnected from the power supply 2 18 For the duration of the device maintenance and repairs you must release pressure from the
11. mission system an electrical system a valve system a hose with a spray gun and bag wringer The transmission system consisting of a reduction gear unit cardan shaft and screw pump with fastening elements The system use a screw pump for generating pressure The valve system consisting of a ball valve a pressure release valve a manometer and a pressure sensor The pressure sensor starts and stops the unit automatically The manometer monitors the pressure of the material The electrical system of the unit consists of an electric box with control buttons and a freguency inverter A freguency inverter makes it possible to easily adjust the output of the unit The function of a bag wringer is to press the ready plaster bags empty 6 HIGH PRESSURE SYSTEM DEVICE START UP 6 1 Place the device on a horizontal surface in the area where the work is taking place so that there is access to the controls on the device and so that it is as convenient as possible to fill the device with material When installing the power cable make sure it isn t in the way of other employees on the site 6 2 Visual inspection of the device e make sure the hoses are securely fastened e make sure there are no unnecessary parts in the material container e the reversing switch figure 2 pos 3 on the cover of the electric box must be in position 0 e turn the speed adjustment knob figure 2 pos 2 on the cover of the electricbox to position 50 6 3
12. rials may result in a need to make adjustments 6 10 When halting the device for a short interval turn the reversing switch figure 2 position 3 into position 0 by pressing the spray gun s trigger release the pressure on the system Lock the spray gun trigger using the safety 7 RECOMMENDATIONS FOR SPRAYING 7 1 If the application of the spray becomes uneven stop the device Turn the spray nozzle 180 degrees anti clockwise and depress the trigger of the spray gun for an instant The device will start up some of the material will flow through the tip flushing it Release the trigger and turn the spray nozzle back clockwise into operating position 7 2 If the spray nozzle clogs very frequently try a larger tip 7 3 Try to keep plaster removed from the wall from getting into the device container The used and removed material may contain larger particles which will clog the tip 7 4 If the spray pressure is not sufficient for a proper spread try a smaller tip 7 5 If the device clogs and also when replacing the tip there may be a need to decrease the pressure in the material hose To do so use the pressure release valve figure 3 pos 22 23 To open the valve unscrew the valve knob figure 3 pos 23 the material will flow out from the opening in the valve body 7 6 Keep track of the spray pressure on the manometer figure 3 pos 11 and if necessary adjust it 7 7 In case the unit stops after the spray gun trig
13. s pressure by increasing the device rotation speed turn the speed adjustment knob figure 2 position 2 slowly clockwise After turning the knob there will be a lag time before the pressure rises If you have increased the pressure beyond 80 bar immediately lower the pressure by turning the knob anti clockwise It is prohibited to operate it at a higher spray pressure than 80 bar as this will result in very rapid wear on the screw pump Keep an eye constantly on the spray pressure the manometer figure 3 pos 11 and if needed perform an adjustment 6 9 When you have achieved the right spray pressure release the spray gun trigger The device must switch off immediately at a pressure of 85 90 bar If the pressure rises higher the device s switch off pressure must be adjusted The switch off pressure can be regulated by turning the manual nut on the pressure sensor figure 3 pos 10 For stabilising the position of the nut there is a locknut that has to be loosened before making the adjustment and then secured again after the adjustment If you turn the nut clockwise the device will switch off at a higher pressure and if you turn it anticlockwise the switch off pressure will fall The pressure adjustment has to be repeated several times to achieve the optimum result If you turn the pressure too high some of the material will ooze out through the screw pump back into the container This will increase wear on the pump Use of different mate
14. ur about a 1 cm layer of clean water on to the material and cover it with plastic film 8 3 Wash the spray gun tip and tip holder separately You can place the spray gun s end in water 8 4 If there is a longer pause in work a week or more the container should be emptied of material and cleaned Pump the contents of the container out unplug the device from the mains power and wash the container out Pump the contents of the container out To keep the pump from getting stuck some conservation fluid should be added to the pump e g glycerine Don t leave the pump standing in water as this will cause corrosion of the motor and it will be very hard to start In the case of breaks of several days it is advisable to leave some material in the device pour some water in and cover with film 8 5 If there is a danger of the device freezing all of the liguid should be drained from the device Hoses can be cleaned with pressurised air It is recommended to dismantle the pump from the device and screw the rotor out of the stator 8 6 From time to time the ball valve of the device will have to be cleaned see point 7 7 9 MAINTENANCE 9 1 The seals figure 4 pos 3 5 6 on the shaft boot of the reduction gear unit figure 4 pos 4 have to be kept lubricated The lubrication nipple is located under the electrical box on the mounting plate of the reduction gear unit figure 4 pos 1 Use a lubricator Fill it until you see lubricant oozing out
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