EH 9
Contents
1. Carbide tipped twist drill 58 0205334 en A a ENS i Plaster chisel 60 T 75 Asphalt cutter 55 EH 9 11 Maintenance 11 1 Maintenance schedule Maintenance Check all external screw connections for tight fit approx 8 hours after initial operation Component Feed line Maintenance work Check for perfect condition if cable is defective replace Miscellaneous Fan slits dirt free clean if necessary Tools Check the shafts and cutting edges if necessary sharpen reforge or replace Maintenance interval Miscellaneous Regrease via grease nipples 20 hours Tool holder bushing Check for wear change if necessary Monthly Miscellaneous Check cheese head screws of housing for tightness retighten if necessary 25 Nm 80 hours Miscellaneous Regrease crankshaft drive 11 2 Maintenance and lubrication 11 2 1 General instructions Keep hammer and tools clean For proper repair work it is necessary to remove old lubricant from all components 11 2 2 Mechanical part 600 hours Regreasing After every 20 hours of operation moderately grease crank mechanism and percussion system via lubricating nipple situated on crankcase Use special grease see technical data Check tool holder bushing for wear The tool may have a play of2. item 13 and the compression spring item 8 have been fitted the installed parts of the tool holder item 12 are subject to spring pressure without safeguarding The parts can be flung away from the tool holder item 12 0205334 en 26 EH 9 Disassembly Assembly 6 6 10 Attach the locking sleeve item 6 damping ring item 5 and the disc item 4 Secure mounted parts immediately with the snap ring item 3 Assembly can also be carried out with assembly pliers for snap rings Fa Hoffmann tool catalog 71 9960 6 6 11 Install sleeve item 2 and rubber cap item 1 eS Cr 0205334 en 27 Disassembly Assembly EH 9 6 7 Disassembly of tool holder hex 19x82 5 mm 3 Item Designation 1 Cheese head screw 2 Tool holder bushing 3 Tool holder 4 Stop sleeve 0205334 en 28 EH 9 Disassembly Assembly 6 7 1 Release the 4 cheese head screws item 1 with the hexagon socket screw key TX 40 and pull them out it 6 7 2 Release and remove tool holder item 3 The tool holder bushing item 2 and stop sleeve item 4 are pressed into the tool holder 6 7 3 If the tool holder bushing item 2 is worn maintenance check see 11 2 4 press out the tool holder bushing item 2 with stop sleeve item 4 using jig 0064986 bolt Remove stop sleeve item 4 ___ 0064986 j Y A y CONT IT PZA EL ER N 0205334 en Disassembly Assembly EHI 6 8 Assembly of tool holder hex 19x
3. piece item 3 This also removes the bushing item 10 the holding spring item 9 the clamping sleeve item 5 and both damping rings items 2 amp 4 The clamping piece item 3 can be removed via the tool holder bushing Turn the clamping wheel item 8 and remove the offset handle item 6 Assembly of supplementary handle hex 19x82 5 mm 6 4 1 6 4 2 6 4 3 6 4 4 Once the defective parts have been replaced assembly proceeds according to the following steps Slide the clamping piece item 3 over the tool holder bushing The clamping piece item 3 is locked with the hexagonal bolt item 1 bushing item 10 holding spring item 9 both damping rings items 2 amp 4 and clamping sleeve item 5 The radial handle item 7 is used to fasten the hexagonal bolt item 1 Check for 14 Nm with the torque wrench The offset handle item 6 and the clamping wheel item 8 can be unscrewed Screw both parts into the clamping piece item 3 with the radial handle item 7 20 EH 9 Disassembly Assembly 6 5 Disassembly of tool holder SDS max Item Designation Item Designation 1 Rubber cap 14 Tool holder bushing 2 Sleeve 15 Intermediate plate 3 Snap ring 16 Support 4 Disc 17 Intermediate piston 5 Damping ring 6 Locking sleeve 7 Holder 8 Compression spring 9 Adjusting ring 10 Seal 11 Cheese head screw 12 Tool holder 13 Lock 0205334 en 21 Disassembly Assembly EH 9 6 5 1 Carefully remo
4. B25 Sound pressure level at operator s station Sound power level The weighted effective acceleration value determined according to ISO 8662 Part 1 0205334 en 1 4 EHI 5 Special tools N 0015108 0064986 Item 0015108 0044738 0049773 0049774 0049775 0064380 0064986 6500021 0205334 en 0044738 6500021 Designation Striking pin Pipe Disc Pipe Support Extractor Bolt Ring 15 Special tools 0049774 0064380 0049773 0049775 Disassembly Assembly 6 Disassembly Assembly Item M O O1 BR ND gt _ 0205334 en All Designation Supplementary handle Tool holder cpl Percussion piston Cylinder housing Crank mechanism cpl Crankcase cpl Motor Inverter Handle Power cable with plug 16 EHI EH 9 Disassembly Assembly 6 1 Disassembly of supplementary handle SDS max 1 Item Designation 1 Hexagonal bolt Bushing Clamping piece Clamping sleeve Offset handle Radial handle Clamping wheel N DO oO fF WB N 0205334 en 1 7 Disassembly Assembly EH 9 6 2 0205334 en 6 1 1 Before the handle can be completely disassembled the steps from Chapter 6 5 Disassembly of the tool holder SDS max must be carried out Unscrew handle item 6 There is a key in the shaft for unscrewing the hexagonal bolt item 1 Release the hexagonal bolt item 1 and pull it out ofthe clamping piece ite
5. First carry out the instructions in section 6 16 Assembly of handle and inverter 0205334 en 39 Disassembly Assembly 6 13 Disassembly of crankcase 10 Item Designation 1 oO N QO A A O N 0205334 en Fillister head screw Bearing cover Deep groove ball bearing Needle sleeve O ring Crankcase Damping support Damping ring Crank mechanism 10 11 12 13 40 EHI Guide piston cpl Guide piston Piston pin Wire snap ring EH 9 Disassembly Assembly 6 13 1 Before the crankcase can be dismantled the steps for dismantling the attached tool holder sections 6 5 or 6 7 must be carried out 6 13 2 After that the steps for dismantling the cylinder housing section 6 9 must be carried out 6 13 3 Remove percussion piston from guide piston item 11 6 13 5 Press out piston pin item 12 0205334 en 41 Disassembly Assembly EH 9 Caution When pressing out the piston pin item 12 do not apply any pressure to the connecting rod as that will destroy it Position guide pistons item 11 evenly and press the piston pins item 12 out with a hand press 6 13 6 Remove the guide pistons item 11 6 13 7 Release the four fillister head screws item 1 TX 40 and remove them Turn and remove the bearing cover item 2 with the crank mechanism item 9 If the bearing cover item 2 is stuck in the housing loosen the bearing cover with a rubber mallet item 2 6 13 8 The
6. intermediate plate item 15 is fixed by means of a pin and can be removed from the tool holder item 12 Remove support item 16 from tool holder bushing Note The pin can become worn see Chapter 11 Maintenance 24 EH 9 Disassembly Assembly 6 6 Assembly of tool holder SDS max 6 6 1 Once the defective parts have been replaced assembly proceeds in the reverse order to disassembly 6 6 2 Insert tool holder bushing item 14 in the tool holder item 12 A 6 6 3 Place support item 16 and idler gear item 17 in the tool holder Follow the indicated assembly procedure i aw 6 6 4 When it has been assembled the unit consisting of items 12 14 17 and 16 should appear as it does in the illustration 6 6 5 Attach the tool holder to the cylinder housing with the intermediate plate item 15 0205334 en 25 Disassembly Assembly EH 9 6 6 6 Using the 4 cheese head screws item 11 attach the tool holder item 12 with the parts described above to the cylinder housing torque 25 Nm 6 6 7 Attach supplementary handle see Chapter 6 2 6 6 8 Slide the seal item 10 adjusting ring item 9 compression spring item 8 and holder item 7 over the tool holder bushing item 14 Make sure the adjusting ring item 9 is attached correctly gt Cog must engage in the groove 6 6 9 Press down the holder item 7 and assemble both parts of the lock item 13 Caution After the lock
7. max 6 mm at a distance of approx 200 mm from the entrance If the bushing is worn to a greater degree replace it to avoid damage and operational failure 0205334 en 59 Maintenance 0205334 en 11 2 3 11 2 4 EMO Percussion piston and guide piston The percussion piston must be replaced when approx 2 mm of the impacting tip has been worn away 116 new 114 min fl 7 B Measurement data for wearing limits of interior percussion piston and exterior guide piston are not possible since they are in the range of a hundred places and defects of ovality come into play Inspection of both parts in grease free state When plunging the guide cylinders into the percussion piston there must be a noticeable resistance in the lower area caused by a pent up air cushion Greased parts react better since the grease film provides additional sealing Tools The performance of the hammer is strongly influenced by the state of the breaking and drilling tools Therefore only sharp tools in perfect condition should be used Inappropriate tools dull tools or tools with worn shanks can lead to overload and consequent damage to the hammer 60 EH 9 Maintenance Check for worn tool shanks on a tool with a new tool holder and vice versa If the play is greater than 6 mm for a distance of 200 mm see illustration the worn part must be replaced 11 2 5 Dowel p
8. not use electric tools in damp or wet surroundings Safety checks 2 3 1 Drilling and breaking hammers may only be operated with all safety devices installed 2 3 2 Before starting operation the operator has to check that all control and safety devices are functioning properly 2 3 3 Before starting operation the overload clutch of the drilling hammers must be checked for proper functioning 2 3 4 Cables must be checked regularly for damage 2 3 5 If defects on the safety devices or other defects impairing the operational safety of the drilling and breaking hammers are observed the supervisor must be informed immediately 2 3 6 lfthere are defects jeopardizing operational safety the machine has to be switched off immediately 6 EH 9 2 4 2 5 2 6 0205334 en Safety instructions Maintenance 2 4 1 Only use original spare parts Modifications to this machine are subject to the express approval of Wacker In case of non observance all liability shall be refused 2 4 2 Disconnect the drilling and breaking hammer from the electric mains before carrying out maintenance and repair jobs 2 4 3 Work on the electric parts of the machines may only be carried out by skilled technicians 2 4 4 As soon as maintenance and repair jobs have been completed all safety devices must be properly re installed Transport 2 5 1 When drilling and breaking hammers are being transported in vehicles precautions have to be taken to ens
9. objects are avoided When carrying out demolition jobs at elevated places special care is required to prevent the machine and the operator from falling Avoid body contact with earthed components When breaking through connecting passages watch out for electric wires gas pipes and other similar objects No one may stay in the room to which a passage is broken through since there is a danger of injury from falling stones and tools During operation the tool holder must be closed Tools and tool holder must be checked for wear in order to guarantee the proper functioning of the holder The operation of this machine may cause broken off pieces to be flung away Therefore during operation no one except the operator is to come near the machine 5 Safety instructions EH 9 2 3 0205334 en 2 2 13 Drilling and breaking hammers have to be disconnected from the electric mains before changing tools 2 2 14 The tools must always be in perfect condition 2 2 15 Do not operate this machine in areas where explosions may occur 2 2 16 Donotuse the electric cable to pull or lift the machine Do not remove the plug from the socket by pulling on the cable Protect cable from heat oil and sharp edges 2 2 17 Electrical equipment and material may only be used if they comply with operational and local safety requirements They must be in proper condition and this condition is to be maintained 2 2 18 Do not expose electric tools to rain Do
10. 1 2 Minimum generator output requirement 3 3 for single connection Current consumption 13 Frequency 50 60 Percussion rate electronically adjustable in 1300 2150 Special lubricating grease Unirex N2 grease Shank for breaking tools SDS max 5 3 From motor via crank mechanism to air Power transmission percussion system percussion system Frequency converter driven three phase AC Dive Motor motor with protective insulation Single drill work 19 Breaking output concrete B25 Sound pressure level at operator s station The weighted effective acceleration value determined according to ISO 8662 Part 1 0205334 en 1 3 Technical data 45 EH 9 BLM 115 WC Item no 0008739 Length x width x height without tool 620 x 130 x 245 Operating weight mass without tool Voltage 110 127 17 Current consumption 1 2 Minimum generator output requirement 3 3 for single connection Current consumption 13 Frequency 50 60 Percussion rate electronically adjustable in 1300 2150 Special lubricating grease Unirex N2 grease Shank for breaking tools SDS max 5 3 From motor via crank mechanism to air Power transmission percussion system percussion system Frequency converter driven three phase AC Dive Motor motor with protective insulation Single drill work i 19 Breaking output concrete
11. 34 en 49 Disassembly Assembly EH 9 6 16 Assembly of handle and inverter 0205334 en 6 16 1 6 16 2 6 16 3 6 16 4 Once the defective parts have been replaced assembly proceeds in the reverse order Pull sealing member item 10 over the cable Insert the 4 pin plug of the inverter item 9 in the stator Attach the sealing member item 10 Attach the lower part of the handle item 1 to the crankcase Attach both electric cables of the inverter item 9 to the switch item 11 Attach both cables of the power supply line item 8 to the switch item 11 Place the switch item 11 in the handle back item 4 and attach both parts together to the handle item 1 6 16 5 Caution Make sure the cables are positioned correctly They must not be clamped down upon when closing the handle After attaching the handle back item 4 lay both cables carefully in the handle This also applies to the cables running from the inverter to the stator which must be positioned under the thumbwheel item 5 in the handle item 1 lt Attach handle here Lay cable correctly in handle 50 EH 9 Disassembly Assembly 6 16 6 Screw in cord grip with clamp item 13 and screws item 12 6 16 7 Install switch guide item 2 with the compression spring item 3 Insert thumbwheel item 5 6 16 8 Attach the upper part of the handle item 1 to the lower part Make sure the cables are not pinched Attach the
12. 6 screws items 6 amp 7 0205334 en 51 Electrical inspection EH 9 7 Electrical inspection Since the electric hammer is double insulated there is no green yellow grounded conductor in the power cable The hammer conforms to class rating Il According to DIN VDE 0701 and VDE 0113 the following inspections are required before after and during maintenance of Wacker electrical devices 1 Visual check 2 Measurement of insulating resistance 3 Electric strength test 4 Functional check The following is a detailed explanation of each test Visual check Make sure that important parts of the device are neither visibly damaged or manifestly inappropriate for the device These parts include the housing cover and connection points All operational equipment pertaining to the machine must be present The housing must be in perfect condition especially for devices with class rating II protective insulation Check flexible supply cables including supplied unit supply cables for external defects In addition the device must carry the required inscriptions e g nameplate Measurement of insulating resistance with testing instrument SK 21 Connect the device to be tested to the test line Insulation measurement must be carried out on the control panel after repairs and before connection The value may not be fallen below For devices of protection class Il double insulated 2 Mega Ohm The measuring device must show higher v
13. 82 5 mm 6 8 1 Once the defective parts have been replaced assembly proceeds in the reverse order 6 8 2 Ifthe tool holder bushing item 2 has been disassembled press in the tool holder bushing item 2 with jig 0064986 bolt as far as it will go i ai ca Ne SI N NSE j 6 8 3 Press on stop sleeve item 4 0205334 en 30 EH 9 Disassembly Assembly 6 9 Disassembling the cylinder housing Item Designation 1 Cylinder housing 0205334 en 31 Disassembly Assembly EH 9 6 9 1 Clamp the hammer in the vise It may only be clamped at the point intended for this purpose Use soft aluminium clamping jaws The lugs are for attaching the handle and may not be damaged Clamp hammer here 6 9 2 Depending on the tool holder mounted on the machine carry out the steps described in chapter 6 5 or 6 7 to disassemble the tool holder Remove the cylinder housing item 1 The cylinder housing item 1 is sealed to the crankcase During disassembly the sealant can cause sticking 0205334 en 32 EH 9 Disassembly Assembly 6 10 Assembling the cylinder housing 6 10 1 Replacement of the pin in the cylinder housing item 1 is described in Chapter 11 Maintenance 6 10 2 Push the cylinder housing item 1 over the percussion piston and attach to the crankcase 6 10 3 The surface between cylinder housing item 1 and crankcase is sealed using a s
14. alues Electric strength test with testing instrument UH 270 Carry out all tests with the switch switched on The test is carried out with approx 3 seconds of high voltage between touchable metal parts e g cylinder housing crankcase tool holder and the supply cables pins from plug not from pin to pin as that would destroy the inverter Test before repairs and before connecting to the control panel Device belonging to protection class II with 500 volts During repairs after cleaning before assembly Stator windings between packet and winding connection 1000 volts Rotor between aluminium packet and shaft 1000 volts Before repairs and before connecting to the control panel Device belonging to protection class II with 3500 volts 0205334 en 52 EH 9 Electrical inspection Functional check After maintenance has been performed a functional test must be carried out The unit must be operated according to the specifications set forth in the operating instructions Check current consumption After maintenance work is carried out all inscriptions must be present on the unit Final acceptance Observe the local rules and regulations 7 1 Electric wiring diagram Plug Pa Feed line White G RQ dtd J O Switch Black Brown Blue Engine Frequency converter The frequency converter was installed with a yellow cable This cable is no longer required 0205334 en 53 Sealant
15. ankcase face surface on cylinder housing with OmniVisc 1002 Remove excess sealing compound 0205334 en 55 Torques EH 9 9 Torques Type AN AN AN I ft Ib ft Ib ft Ib 1 N 14 9 TIZ ESS _ gt Oo gt N Pio N J ES gt ESS wo oa _ gt _ _ _ a a N gt o N _ N LL 5 30 169 Em EA 508 _ 427 580 ESS N _ gt 410 427 zinIb o 4 _ oa a N _ j a o o eo 3 8 o ao oi N a 3 4 13 16 _ IN _ _ _ b SQ w gt Je R BP OWN 56 ou N O1 N 159 216 15 16 1 1 8 1 ft Ib 1 357 Nm 1 inch 25 4 mm w rs N SQ _ 0205334 en 56 EH 9 10 Tools Tools 10 1 Forging When it becomes necessary to reforge the tools care should be taken that only that part of the tool that needs reforging is heated Moreover it is important that the heat is increased slowly and that it is constantly watched otherwise heat cracks are likely to occur on hardened tools Forging temperature 800 C 1000 C bright cherry red yellow The tool should be forged within these limits and if necessary heated repeatedly A temperature below 800 C may cause tension cracks wher
16. assembly Ol MOON tee ee 34 6 12 Assembly of MOIOR se eines 38 6 13 Disassembly of CranmkCASe seau nas ar SMART 40 0205334 en 1 Indice 10 11 12 13 14 6 14 Assembly of crankcase 6 15 Disassembly of handle and inverter 6 16 Assembly of handle and inverter Electrical inspection 7 1 Electric wiring diagram Sealants lubricants and adhesives 8 1 Lubricants enoaan 8 2 ACN SIVES 02cccceecceceeceeeceeaeeeeeees 8 3 Se alants 38250008 er Torques Tools 10 1 FORCING Ls nee 10 2 Hardening issues 10 3 Tempering eieiei 10 4 GIINdNG ee 10 5 Reforging of tools Maintenance 11 1 Maintenance schedule 11 2 Maintenance and lubrication Diagram Troubleshooting Notes 0205334 en 2 52 53 54 54 54 55 56 57 57 57 57 57 58 59 59 59 62 63 64 EH 9 1 Foreword 0205334 en For your own safety and protection from bodily injuries carefully read understand and follow the safety instructions in this manual All rights especially the right for copying and distribution are reserved Copyright by Wacker Construction Equipment AG No part of this publication may be reproduced n any form or by any means electronic or mechanical including photocopying without express permission in writing from Wacker Construction Equipment AG Any type of reproduction distributi
17. driven three phase AC Dive Motor motor with protective insulation Single drill work 19 Breaking output concrete B25 Sound pressure level at operator s station The weighted effective acceleration value determined according to ISO 8662 Part 1 0205334 en 1 1 Technical data 4 3 EH9BL 115WC Item no 0008734 Length x width x height without tool 560 x 130 x 245 Operating weight mass without tool 10 Voltage 110 127 1 Current consumption 1 2 Minimum generator output requirement 3 3 for single connection Current consumption 13 Frequency 50 60 Percussion rate electronically adjustable in 1300 2150 Special lubricating grease Unirex N2 grease Shank for breaking tools Hexagonal SW 19 x 82 5 5 3 From motor via crank mechanism to air Power transmission percussion system percussion system Frequency converter driven three phase AC Baye Motor motor with protective insulation Single drill work i 19 Breaking output concrete B25 Sound pressure level at operator s station Sound power level The weighted effective acceleration value determined according to ISO 8662 Part 1 0205334 en 1 2 Technical data 44 EH 9 BLM 115 Item no 0008738 Length x width x height without tool 620 x 130 x 245 Operating weight mass without tool Voltage 110 127 1 Current consumption
18. e prevention of accidents regarding emission of noise the employees have to wear ear protection if the sound level reaches 89 dB A or more This repair manual is intended for drilling and breaking hammers with 2 tool holder types ERS 2 2 0205334 en Safety instructions Operation 2 2 1 2 2 2 2 2 3 2 2 4 2 2 5 2 2 6 2 2 7 2 2 8 2 2 9 2 2 10 2 2 11 2 2 12 The function of operation levers or elements is not to be influenced or rendered ineffective Make sure that the machine is connected only to voltage and frequency as indicated on its name plate Choose correct cross section for extension cord See calculation example and diagram included in this manual Before leaving the drilling and breaking hammers or going on breaks the operator must switch off the machines disconnect them from the electric mains and store them securely Wear safety goggles to avoid injuries to the eyes We recommend wearing suitable working gloves Wear protective shoes while working with drilling and breaking hammers Drilling and breaking hammers are always to be operated with both hands on the handles provided for this purpose When working with drilling and breaking hammers especially when carrying out drilling jobs the operator must be positioned securely particularly when working on scaffolding and ladders Drilling and breaking hammers are to be guided in such a way that hand injuries caused by solid
19. ealant See Chapter 8 3 Sealants 6 10 4 The respective tool holder can be re attached See section 6 6 or 6 8 0205334 en 33 Disassembly Assembly 6 11 Disassembly of motor EHI Item Designation 1 ON OO 1 FW PDH 0205334 en Retaining clip Deep groove ball bearing Crankcase Retaining clip Fan wheel Rotor Inner ring Air conductor sleeve O ring 10 11 12 13 34 Stator Needle bearing End shield Screw EH 9 6 11 1 6 11 2 Disassembly Assembly First carry out the instructions in section 6 15 Disassembly of handle and inverter Release the 4 screws item 13 with hexagon socket screw key TX 40 and remove end shield item 12 oe LT ni ag An na f 6 11 3 Pull out stator item 10 On older machines the stator item 10 may stick if this is the case use a strap wrench 0094654 y SE 6 11 4 Remove O ring item 9 and air conductor sleeve item 8 Parts are 0205334 en placed separately in crankcase 35 Disassembly Assembly EH 9 6 11 5 6 11 6 6 11 7 0205334 en Remove retaining clip item 4 from the rotor shaft item 6 using pliers Use jig extractor 0064380 modified pin to pull rotor item 6 and fan wheel item 5 out of the crankcase The inner ring item 7 which is positioned on the rotor shaft is also removed Using a hand press the fan wheel item 5 can be separated from the rotor item 6 wi
20. eas when the temperature exceeds 1000 C the steel is overheated and ruined After forging the tools should be quenched in an ash or sandbox Do not harden the tools before they have cooled 10 2 Hardening Heat point or blade in direction of tool shank so that it becomes a cherry red colour 780 C 810 C over the shortest distance possible approx 30 40 mm then quench in water of approx 20 C while moving the tool to and fro 10 3 Tempering Smear blade with lubricating gel Heat shaft to approx 220 C The stored heat is transferred to the blade changing its colour Tempering colour golden brown for soft stone white yellow for hard stone When the tempering colour is reached immediately quench the tool in water 10 4 Grinding 0205334 en Sharpen the insert tools on grinding wheels preferrably sandstone employing sufficient cooling water The edges should not be allowed to turn blue as the hardness of the tools will be affected Take care to achieve the proper cutting edge and pointed angle The harder the material to be cut the greater the angle should be 57 Tools 10 5 Reforging of tools 50 60 lad gt Ue Je Ue Tools made of water temperable Point chisel Flat chisel Blank steel C70W2 can be forged hardened and ground Spade Pointed spade Tools with hard metal bits may only be sharpened on emerywheel machines
21. ect condition It is advisable to lightly grease or oil tool shanks and tool bushing to avoid dry running and premature excessive wear Connection The electric hammer is powered by A C single phase see technical data A suitable plug is provided for connection ERS 3 3 0205334 en Description During operation 3 3 1 3 3 2 3 3 3 3 3 4 3 3 5 Speed control Turn the thumbwheel in the handle anticlockwise as far as it will go reduced hammer power Operation at reduced power is necessary for spot drilling and for work on brittle material Turn the thumbwheel clockwise full power Handle system on tool holder consisting of two handle pieces Offset handle According to the application requirements this handle can be turned perpendicularly to the tool shaft direction by approx 270 Loosen the clamping wheel to turn the handle The handle can be adjusted in 22 5 steps by tightening the clamping wheel Radial handle This handle can be either be screwed into the supplementary handle or attached to the side of the housing The complete handle system can additionally be turned 360 perpendicularly to the tool shaft direction It must be tightened with the SW13 hexagonal bolt of the radial handle before starting any application approx 14 Nm Technical data EH 9 4 Technical data 4 1 EH 9BL 230 Item no 0008429 Length x width x height without tool 560 x 130 x 245 Operatin
22. entire crank mechanism item 9 can be removed Hammers of the 101 series have an O ring item 5 under the bearing cover for sealing Remove it 0205334 en 42 EH 9 Disassembly Assembly 6 13 9 In order to replace the deep groove ball bearing item 3 the bearing cover item 2 must first be removed To do this clamp the entire crank mechanism item 9 in the vise with soft aluminium clamping jaws Insert 2 large screwdrivers between bearing cover item 2 and crank mechanism item 9 and carefully press the crank mechanism item 9 upwards Adjust if necessary to prevent cant Support for both screwdrivers is provided by the vise The crank mechanism item 9 is released from the bearing cover item 2 PER D 6 13 10 Remove deep groove ball bearing item 3 from crank mechanism item 9 with 2 arm extractor 6 13 11 Remove needle sleeve item 4 with jig 2 arm extractor and e g kukko 21 5 6 13 12 Remove the damping support item 7 and damping ring item 8 from the housing if they are defective 43 0205334 en Disassembly Assembly EH 9 6 14 Assembly of crankcase 6 14 1 Turn housing around and press needle sleeve item 4 with jigs support 0049775 and disc 0099773 under a hand press as far as it will go 6 14 2 In order to press the deep groove ball bearing item 3 onto the crank mechanism item 9 the crank mechanism must be professionally installed under a hand press Create an
23. even base using parallel strips Press on deep groove ball bearing item 3 V2 0049775 0049773 NUN Nw 6 14 3 Carefully press bearing cover item 2 onto the deep groove bearing item 3 Make sure the base is even use parallel strips Note Bearing cover is a cast part do not cant when pressing 0205334 en 44 EH 9 Disassembly Assembly 6 14 4 Pull up the O ring item 5 on the cover of the crank mechanism item 9 lubricate insert in the crankcase item 6 Also see Chapter 11 Maintenance 6 14 5 Place guide piston item 11 on connecting rod Use piston pin item 12 to connect connecting rod to guide piston item 11 6 14 6 If the piston pin item 12 must be pressed into the guide piston item 11 no pressure may be applied to the connecting rod The crankcase with the crank mechanism must be set up under a hand press in such a way that the connecting rod is not destroyed 0205334 en Disassembly Assembly EH 9 6 14 7 Insert fillister head screws item 1 TX 40 and tighten them torque 10 Nm Fillister head screws item 1 are bonded see section 8 2 Note Lubricate crankcase see chapter 11 Push percussion piston onto guide piston item 11 Lightly grease percussion piston see section 8 1 6 14 8 Insert damping rings item 8 and damping supports item 7 6 14 9 Carry out the instructions in section 6 10 Assembly of cylinder housing 6 14 10 Carry out the instructions in sec
24. g weight mass without tool 10 Voltage f 220 240 1 Current consumption 1 38 Minimum generator output requirement 3 3 for single connection Current consumption 5 7 5 Frequency 50 60 Percussion rate electronically adjustable in 1300 2150 Special lubricating grease Unirex N2 grease Shank for breaking tools Hexagonal SW 19 x 82 5 TE From motor via crank mechanism to air Power transmission percussion system percussion system Frequency converter driven three phase AC pive motat motor with protective insulation Single drill work J 19 Breaking output concrete B25 kg h Sound pressure level at operator s station Lpa The weighted effective acceleration value determined according to ISO 8662 m s2 Part 1 0205334 en 1 0 EH 9 Technical data 4 2 EH 9BLM 230 Item no 0008732 Length x width x height without tool 620 x 130 x 245 Operating weight mass without tool H 10 7 Voltage 220 240 1 Current consumption 1 38 Minimum generator output requirement 3 3 for single connection Current consumption 7 5 Frequency 50 60 Percussion rate electronically adjustable in 1300 2150 Special lubricating grease Unirex N2 grease Shank for breaking tools SDS max 5 3 From motor via crank mechanism to air Power transmission percussion system percussion system Frequency converter
25. in in cylinder housing When the dowel pin is worn it must be replaced When replacing it pay attention to the depth of insertion as well as the bevel position See illustration Bevel EN Arra FAZZRZZA 9mm EZ ZZ lt 0205334 en 6 1 Diagram EH 9 12 Diagram Selection of required cross section for extension of cables and power lines This procedures takes into consideration The ohmic and inductive resistance of the line with an admissible loss of voltage of 5 und cos phi 0 8 as per voltage frequency curve The admissible warming up of the lines as per VDE standard table of required minimum cross section Voltage frequency curve Cross section area of cable in mm Length of cable in m Input cable cross section maximun E power supply 1 5 mm 26 m 2 5 mm 44 m 4 mm 70m 6 mm 104m 10 mm 171m Electric dimensioning current 7 5 A 0205334 en 62 EH 9 13 Troubleshooting Input voltage too high gt 300 V or too low lt 170 V Inverter temperature too high Supply cable interruption Troubleshooting Make sure to have the correct voltage Check extension cable for sufficient conductor cross section Let equipment cool off Check supply cable incl clamp contacts and replace if necessary Switch defective Replace Broken cable between inverter and switch Replace cable incl plug with inverter switch repair set No 0125290 Inver
26. m 3 This also removes the bushing item 2 and the clamping sleeve item 4 The clamping piece item 3 can be removed via the tool holder bushing Turn the clamping wheel item 7 and remove the offset handle item 5 Assembly of supplementary handle SDS max 6 2 1 6 2 2 6 2 3 6 2 4 Once the defective parts have been replaced assembly proceeds according to the following steps Slide the clamping piece item 3 over the tool holder bushing The clamping piece item 3 is locked with the hexagonal bolt item 1 bushing item 2 and clamping sleeve item 4 The radial handle item 6 is used to fasten the hexagonal bolt item 1 Check for 14 Nm with the torque wrench The offset handle item 5 and the clamping wheel item 7 can be unscrewed Screw both parts into the clamping piece item 3 with the radial handle item 6 18 EH 9 Disassembly Assembly 6 3 Disassembly of supplementary handle hex 19x82 5mm 1 LT V IL 7 KL i Item Designation Item Designation 1 Hexagonal bolt 9 Holding spring Damping ring 10 Bushing Clamping piece Damping ring Clamping sleeve Offset handle Radial handle oO N O 1 BB WO N Clamping wheel 0205334 en 1 9 Disassembly Assembly EH 9 6 4 0205334 en 6 3 1 6 3 2 6 3 3 Unscrew handle item 7 There is a key in the shaft for unscrewing the hexagonal bolt item 1 Release the hexagonal bolt item 1 and pull it out ofthe clamping
27. on or saving on data carriers of any type or method not authorized by Wacker represents an infringement of valid copyrights and will be prosecuted We expressly reserve the right to technical modifications even without express due notice which aim at improving our machines or their safety standards Safety instructions EH 9 2 Safety instructions 2 1 0205334 en for the use of drilling and breaking hammers with electric drive General instructions Drilling and breaking hammers may only be operated by persons who are at least 18 years of age are physically and mentally fit for this job have been instructed in the operation of drilling and breaking hammers and proven their ability to do the job to the employer and may be expected to carry out the job they are charged with carefully The persons must be assigned the job of operating drilling and breaking hammers by the employer Drilling and breaking hammers are to be applied for their proper use Both the manufacturer s operating instructions and these safety instructions must be observed The persons charged with the operation of drilling and breaking hammers must be made familiar with the necessary safety measures relating to the machine In case of extraordinary uses the employer shall give the necessary additional instructions It is possible that these drilling and breaking hammers exceed the admissible sound level of 89 dB A According to the rules for th
28. s lubricants and adhesives EH 9 8 Sealants lubricants and adhesives 8 1 Lubricants Crank mechanism lubricant Attach O ring see 6 14 item 5 to bearing cover see 6 14 item 2 and grease with approx 1 5 cm UNIREX N2 Grease crank mechanism see 6 14 item 11 through lubrication borehole in crankcase see 6 14 item 6 with UNIREX N2 and turn connecting rod several times Needle bearing see section 6 12 lubricate item 11 with Unirex N2 Lubrication percussion system Grease crankcase see 6 14 item 6 with UNIREX N2 approx 5 g in the area of the beveled gearing see 6 14 item 11 Grease guide piston borehole see 6 14 item 13 with UNIREX N2 Lightly grease cylinder housing borehole see 6 10 item 1 and percussion piston see 6 0 item 3 with UNIREX N2 assemble both parts and attach to guide piston see 6 4 item 13 Lubrication rotor Lightly grease thread in rotor with UNIREX N2 see 6 12 item 6 8 2 Adhesives 0205334 en 8 2 1 Adhesive for crankcase Lubricate bearing carrier for deep groove ball bearing see 6 12 item 2 with OmniFit 230 L and press deep groove ball bearing see 6 12 item 2 into crankcase see 6 12 item 6 with hand press Sprinkle the boreholes in the crankcase see 6 14 item 6 for the 4 fillister head screws see 6 14 item 1 with OmniFit 230 L 54 EH 9 Sealants lubricants and adhesives 8 3 Sealants 8 3 1 Sealant for cylinder housing Seal cr
29. ter electronics defective Replace inverter Broken cable between inverter and stator Replace cable incl plug with inverter stator repair set No 0125291 Stator defective Replace stator Blocked percusion system Due to high grease resistance because of low external temperature Due to over greasing Due to seizing of moving parts e g due to prolonged dry running Due to seizing of drill Irregular dropouts 0205334 en 63 Allow unit to warm up in warm environment e g heated rooms Remove excessive grease from percussion system Replace defective components Blow out borehole check for reinforcing steel Completely remove yellow cable from inverter Notes EH 9 14 Notes 0205334 en 64 Wacker Construction Equipment AG PreuBenstraBe 41 D 80809 M nchen Tel 49 0 89 3 5402 0 gt Fax 49 0 89 3 5402 3 90 Wacker Corporation P O Box 9007 Menomonee Falls WI 53052 9007 Tel 262 255 0500 Fax 262 255 0550 Tel 800 770 0957 Wacker Asia Pacific Operations Skyline Tower Suite 2303 23 F 39 Wang Kwong Road Kowloon Bay Hong Kong Tel 852 2406 60 32 Fax 852 2406 60 21
30. th the jig ring 650021 If the needle bearing item 11 is defective the needle bearing item 11 is pulled out of the end shield item 12 with a jig 2 arm extractor e g kukko 21 2 36 EH 9 Disassembly Assembly 6 11 8 Remove retaining clip item 1 with pliers Pull out deep groove ball bearing item 2 with jig 2 arm extractor e g kukko 21 5 0205334 en 3 7 0205334 en Disassembly Assembly EH 9 6 12 Assembly of motor 6 12 1 Once the defective parts have been replaced assembly proceeds according to the following steps 6 12 1 Press deep groove ball bearing item 2 with jig bolt 0015108 into the crankcase item 3 with hand press Make sure the base is even Insert retaining clip item 1 using pliers 0015108 Jig 0015108 III lt lt SN yss 6 12 2 Use jig pipe 0044738 under a hand press to press the fan wheel item 5 onto the rotor item 8 6 12 3 Press the rotor item 6 with fan wheel item 5 into the crankcase item 3 or deep groove ball bearing item 2 Insert retaining clip item 4 6 12 4 Insert air conductor sleeve item 8 O ring item 9 and stator item 10 6 12 5 If the needle bearing item 11 in the end shield item 12 has been removed press it in with the jig pipe 0049774 and hand press 38 EH 9 Disassembly Assembly 0049774 6 12 6 Attach end shield Fasten screws item 4 with 10 Nm 6 12 7
31. tion 6 6 or 6 8 Assembly of tool holder 0205334 en 46 EH Oi Disassembly Assembly 6 15 Disassembly of handle and inverter Item 1 O AN OA BB N _ 0205334 en Designation Paired handle 11 Switch guide 12 Compression spring 13 Handle back Thumbwheel Fillister head screw Screw Cable support sleeve Inverter Sealing member 47 Switch Fillister head screw Clamp Disassembly Assembly EH 9 6 15 1 Open the handle by means of 6 screws items 6 amp 7 screwdriver TX 25 Remove the upper part of the handle Remove thumbwheel item 5 oO O0 6 15 2 Remove handle back item 4 pull out the switch item 11 and disconnect from the inverter cables Release the fillister head screws item 12 from the cord grip and remove with clamp item 13 The lower part of the handle can be removed from the hammer Cable inverter 6 15 3 If the electric cable is defective it can be disconnected from the switch To do this release the two clamp screws in the switch item 11 6 15 4 The switch guide item 2 compression spring item 3 and lower handle can be removed Fu By Clamp screws electric cable in 48 0205334 en EH 9 Disassembly Assembly 6 15 5 Disconnect the inverter item 9 from the motor Carefully remove the inverter plug item 9 from the stator Remove the sealing member item 10 The inverter item 9 can be removed from the handle 02053
32. ure that they do not slip or fall over Maintenance checks 2 6 1 According to the conditions and frequency of use drilling and breaking hammers must be checked for safe operation at least once every 6 months by skilled technicians such as those employed by Wacker service stations and repaired if necessary Please observe the appropriate rules and regulations valid in your country Description 3 Description 3 1 3 2 0205334 en ENS Application 3 1 1 The Wacker drilling and breaking hammer is used in structural and civil engineering plant construction concrete works cast stone plants foundries by plumbing installation firms and municipalities It is particularly suited for use on natural and cast stone as well as for all types of brick and stonework A wide selection of easily interchangeable tools is available for drilling holes from 12 to 125 mm for breaking chiselling digging puddling hammering ramming and deburring Putting into operation 3 2 1 3 2 2 3 2 3 3 2 4 3 2 5 3 2 6 3 2 7 3 2 8 Attaching and removing the tool Pull mains plug out of electric socket Turn the tool until it audibly snaps in Lock using strong axial pressure Check to see if the tool is locked by pulling on the tool The tool is able to move several centimeters axially in the tool holder To remove the tool push back the sleeve and pull out the tool Only use sharp tools with tool shanks in perf
33. ve rubber cap item 1 from tool holder 6 5 2 6 5 3 Remove snap ring item 3 Disassembly can be carried out with assembly pliers for snap rings Hoffmann tool catlog 71 9960 Caution Once the snap ring has been disassembled the remaining parts of the tool holder are under spring tension without safeguarding The parts can be flung away from the tool holder Danger of injury 0205334 en 22 EH 9 Disassembly Assembly 6 5 4 The disc item 4 damping ring item 5 and locking sleeve item 6 can be removed from the tool holder item 14 6 5 5 Press down the holder item 7 and remove the lock item 13 both parts gt 6 5 6 Remove the holder item 7 compression spring item 8 adjusting ring item 9 and seal item 10 from the tool holder bushing item 14 6 5 7 Disassemble supplementary handle see Chapter 6 1 0205334 en 2 3 Disassembly Assembly EH 9 6 5 8 6 5 9 6 5 10 6 5 11 0205334 en The individual components of the tool locking device have been disassembled the tool holder item 12 and tool holder bushing item 14 can be disassembled Release the 4 cheese head screws item 11 with the hexagon socket screw key TX 40 and pull them out Remove tool holder item 12 from housing Remove tool holder bushing item 14 Caution The intermediate piston item 17 may stick in the tool holder bushing item 14 and fall out Cylinder housing may fall down The
34. www wackergroup com 0205335 0205 en Breakers EH 9 REPAIR MANUAL 0 2 0 5 3 3 5 EH 9 Contents 1 Foreword 3 2 Safety instructions 4 2 1 General instructions is 4 2 2 CPST ANON sata en drames 5 2 3 Safety bHecks anna eat 6 2 4 Maintenance engl 7 2 5 Transporte ara ne Eee 7 2 6 Maintenance Cheeks eroii croeer n einen 7 3 Description 8 3 1 ADDING AION Au ee ea 8 3 2 Putting into operation ziert asien saure 8 3 3 D ring Operaatio Mre irestart eee a him theme 9 4 Technical data 10 4 1 El Bc WA 80 8 EE E E EEE 10 4 2 EHSBEM 230 a srr ea en 11 4 3 FO BL EAA SE E ee raies 12 4 4 BOB a S Are en EEEE 13 4 5 EH 9 BLM 115 WO aaran rn 14 5 Special tools 15 6 Disassembly Assembly 16 6 1 Disassembly of supplementary handle SDS max 17 6 2 Assembly of supplementary handle SDS max 18 6 3 Disassembly of supplementary handle hex 19x82 5mm 19 6 4 Assembly of supplementary handle hex 19x82 5 mm 20 6 5 Disassembly of tool holder SDS max 21 6 6 Assembly of tool holder SDS max r 444444444 Henne 25 6 7 Disassembly of tool holder hex 19X82 5 MM 28 6 8 Assembly of tool holder hex 19x82 5 mm 30 6 9 Disassembling the cylinder housing 31 6 10 Assembling the cylinder housing ss 33 6 11 Dis
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