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1. Housing Exhaust Rear View of Motor in Housing Fig 4 FINAL SPEED ADJUSTMENT Check the free speed of the tool with a dependable tachometer with the grinding wheel removed To make an adjustment turn the air supply off and remove us ing a 9 64 hex wrench the spindle plug No 622060 and in sert the governor adjustment wrench No 204729 to engage the governor adjustment nut No 204730 Looking from the front of the spindle a clockwise adjustment will increase the rpm and a counterclockwise adjustment will decrease the rpm Replace the spindle plug before turning the air supply on Check the rated rpm of the tool stamped on the governor housing and set the free speed to a speed less than the rated rpm at 90 psig ALWAYS USE A GUARD Install the proper wheel guard see page 6 Tighten the wheel guard retainer nuts to the proper torque as shown on page 3 Read the Safety Recommendations before mounting a wheel and operating this tool OPTIONAL EQUIPMENT PARTS LIST MUFFLER ASSEMBLY MUFELER am 1700 V 867945 1900 V 867943 202112 Muffler Screw self tapping 202113 Muffler incl 867947 202114 Muffler incl 867948 867943 Baffle Plate 867945 Baffle Plate 867947 Muffler Gasket 867948 Muffler Gasket 1700 V 867947 1900 V 867948 1700 V 202113 1900 V 202114 RARA RARA ITA R TAGA naa tH HH HIHI Y The complete muffler subassembly can be purchased as a subas sembly 1700 V Part No 86199
2. If a grinder is used for wire brushing applications the same problems of balance roundness and trueness as experienced with abrasive wheels prevail Use quality wire brushes USE A PREVENTIVE MAINTENANCE PROGRAM Tool abuse or poor maintenance procedures can amplify and contribute to the vibration produced by the abrasive wheel A preventive maintenance program featuring scheduled periodic inspections and proper maintenance is the best way to assure safety in your portable grinding operations A well managed program can detect such things as speed variations dueto wear flanges or spindles that have been damaged from abuse or bad bearings damaged by foreign matter or lack of lubrication Problems such as these can affect the wheel trueness when the grinder is running and contribute to the vibration Rotor blades that are worn or chipped can lock up motor and result in grinding wheel spinoff and should be replaced Rotor blades should be checked periodically and replaced if they measure less than 7 16 11mm at either end Replace if 7 16 11mm or less at either end t PROPER LUBRICATION An automatic in line filter regulator lubricator is recommended to increase tool life and keep the tool in service The in line lubricator should be regularly checked and filled with a good grade of 10W machine oil Proper adjustment of the in line lubricator is performed by placing a sheet of paper next to the exhaust ports and holding the throt
3. 832899 a INS 842341 844287 867504 842341 1900 867503 867747 867764 204636 C Model Only f 204635 Wheel Retainer Kit 201787 813041 i Instruction Tag 204732 included 204663 m VERTICAL GRINDERS HANDLE SUBASSEMBLIES LOCK OFF LEVER HANDLE 867769 4 S 845322 Lern ei 864620 867758 1 467756 em S 869889 acoso 9 5 N 869429 869539 413056 867753 as 833961 SELF CLOSING THUMB LEVER amp QUICK RELEASE THUMB LEVER HANDLE 1489729 IH Self Closing Thumb Throttle Quick Release Thumb Throttle 61 413255 4 415330 867768 867758 844323 867732 867756 867 29 813041 0 2 am 0 539 867753 861009 NAME OF PART 413056 413255 415330 813041 833961 844323 844912 845228 845322 861009 864620 867729 867731 867732 867753 867755 867756 867758 867768 867769 869429 869539 869838 869839 883729 Throttle Valve Spring Lever Bushing Self Closing Thumb Throttle Socket Head Cap Screw O Ring 13 16 x 1 O Ring 1 1 4 x 1 1 2 Lock Washer Throttle Lever Pin Pawl Pin Throttle Valve incl 869539 Pawl Spring Air Screen Pawl O Ring 1 1 8 x 1 5 16 Throttle Valve Cap Throttle Pin Throttle Pin Bushing Inlet Bushing Quick Release Thumb Throttle Lock Off Lever Throttle Pin Throttle Valve Seal Throttle Handle incl 867756 Throttle Handle incl 867756 Throttle Lever Screw espresse pe
4. Institute Inc 11 West 42nd Street New York NY 10036 A CAUTION Personal hearing protection is recommended when operating or working near this tool Hearing protection is recommended in high noise areas above 85 dBA Close proximity of additional tools reflective surfaces process noises and resonant structures can substantially con tribute to the sound level experienced by the operator Excessive air pressure greaterthan 90 psig or worn components can also increase sound level emitted by the tool Proper hearing conser vation measures including annual audiograms and training in the use and fit of hearing protection devices may be necessary For additional information on hearing protection referto Federal OSHA Regulations 29 CFR Section 1910 95 Occupational Noise Exposure and American National Standards Institute ANSI S12 6 Hearing Protectors Gloves and other protective clothing should be worn as required Do not wear clothing that may restrict movement become entangled or in any way interfere with the safe operation of grinders WARNING Wear respirator where necessary Grinding or other applications of this tool may produce hazard ous fumes and or dust To avoid adverse health effects utilize adequate ventilation and or a respirator Respirators should be selected fitted used and maintained in accordance with Occu pational Safety and Health Administration and other applicable regulations
5. Thickness 204644 Rotor Blade 1700 869608 1525 1520 204645 Rotor 1700 869609 1 1515 1510 204646 Rotor 1900 869610 1505 1500 204663 Adaptor Screw 869892 1495 1490 204732 Instruction Tag 869893 1485 1480 622060 Spindle Plug 813041 Dead Handle Bolt Governor 832899 FlatWasher Assembly 834228 Drive Screw See Page 10 a 834619 O Ring 13 16 x 15 16 Overspeed Shut off Disc 842341 Hex Nut and Related Components 844287 Lock Washer See Page10 set 847548 Cylinder Pin 869820 E 863925 Wavy Washer 863925 867503 Motor Housing 1900 867749 gt gt 867504 Motor Housing 1 700 867746 Housing Bolt 1700 869819 867747 Dead Handle Gasket 847548 1 gt 867749 Rotor Collar Rear 867764 Dead Handle 1700 867776 3 867776 Oylinder 1700 incl 847548 1900 867825 G 867822 Housing Bolt 1900 867825 Cylinder 1900 incl 847548 1700 204644 867832 Governor Housing 1900 204643 incl 202020 203208 869608 Rotor Collar Front 1700 204645 869814 Front Bearing Plate 1900 204646 869817 Spring Washer R 869818 Front Rotor Bearing 869608 869819 Rear Bearing Plate 869814 869820 Rear Rotor Bearing 867832 869818 202020 867746 e 200208 SODE 869817 ES 622060 2 bata Rae Ss Ss A ACOH MAND HH HH AH Aa KR ld as bo oo ll gt 203011
6. hex wrench clamped in a vise Install the rotor blades cylinder rear rotor collar rear bearing plate wavy washer and rear rotor bearing drive on the bearing s inner race If disassembled earlier install the O ring No 867745 onto the disc seal plate No 867765 and press the seal plate No 867765 undercut side up onto the rear bearing plate Before reassembly the overspeed shut off disc should receive a close inspection for wear and or damage Also check the rpm rating etched on the disc against the rpm rating stamped on the tool they must be the same The complete overspeed shut off disc assembly must be as sembled to the rotor shaft using a suitable flat driver 7 8 22 5mm O D min resting against the assembly Drive the disc assembly down until it stops against the rear bearing inner race See Fig 3 OVERSPEED SHUT OFF DISC DRIVER mp BEARING Fig 3 GOVERNOR REASSEMBLY It is imperative that all parts be clean and free of foreign mate rial A new governor cone pin No 413047 should be installed and both ends of the pin must be upset to secure it The gover nor cone No 413048 should be checked to be sure that it moves freely on the governor spider No 869099 after installation of the cone pin Check the fit between the governor weights and governor weight pins No 413050 and replace all parts that show excessive wear Install the governor spring on the governor spide
7. torqued to 144 156 in Ibs Safety Recommendations 203011 74 202408 WARNING TAG WARNING TAG WARNING AND INSTRUCTION LABEL TACHOMETER 203208 SPEED RATING AND WARNING TAG Speed rating warning tags and warning labels should be main tained or replaced for legibility in the event of damage Speed rating warning tags and warning labels are available from the manufacturer Before mounting a wheel after all tool repairs and whenever a grinder is issued for use check the free speed of the grinder with atachometerto make certain thatthe actual free speed at 90 psig 6 2 bar does not exceed the rated free speed stamped on the tool Grinders in use on the job must be checked at least once every twenty hours of operation or once every week whichever is more frequent Checking free speed after the removal of each worn wheel and before mounting a new wheel is highly recom mended INSPECT THE GRINDING WHEEL Check the maximum safe RPM marked on the wheel Never use a wheel rated below the actual tool speed Inspect the wheel for cracks or chips water stains or signs of abuse or improper storage Cracked chipped or faulty grinding wheels are dangerous and must not be used They must be destroyed rather than risk their use by someone who may not notice that they are damaged WARNING Fragments from an abrasive wheel can cause serious injury or death Do not operate without proper
8. 0 seconds The lubricator is properly set when a light stain of oil collects on the paper Excessive amounts of oil should be avoided STORAGE In the event that it becomes necessary to store the tool for an extended period of time overnight weekend etc it should receive a generous amount of lubrication at that time and be run for several seconds to distribute the oil before disconnect ing from the air supply SERVICE INSTRUCTIONS DISASSEMBLY GENERAL Disconnect the tool from the air supply and remove the grinding wheel and guard from the front of the tool REMOVING THE MOTOR UNIT FROM THE MOTOR HOUSING Insert a 5 16 hex wrench clamped in a vise in the spindle shaft and unscrew the driving flange Removing the housing bolts will allow the governor housing 867832 to be removed from the housing Remove the motor unit from the rear of the motor housing DISASSEMBLY OF THE MOTOR UNIT Unscrew the governor assembly left hand threads from the rear of the motor unit Clamping on the cylinder hold the motor unit in the vise with the rear bearing plate up Using a soft 1 4 6 5mm rod and a suitable hammer drive the rotor shaft out of the overspeed shut off disc and rear rotor bearing 869820 This will allow the various motor unit components to be removed from the rotor IMPORTANT NOTE The overspeed shut off disc is an assembly and must not be disassembled Do not remove the disc seal plate unless the rear bearing plate needs
9. 6 1900 V Part No 861997 INSTALLATION PROCEDURE The muffler is installed on the tool by aligning the muffler assembly over the exhaust and screwing the two 2 self tapping screws into the mat ing exhaust holes PARTS LIST PIPED AWAY EXHAUST SYSTEM PIPED AWAY EXHAUST m 1700 V 867946 Exhaust Cover Screw 1900 V 867948 867947 Cover Gasket 1700 V 869248 867948 Cover Gasket 1900 V 869249 869246 Socket Head Cap Screw 869247 Gasket 869248 Exhaust Cover 1700 V incl 867947 869249 Exhaust Cover 1900 V incl 867948 c 869829 Housing Adapter 869830 C i 869830 Muffler Adapter 869831 Muffler 869832 Exhaust Hose 10 869833 Hose Clamp Dad i i i No ND The complete piped away exhaust system can be purchased as a subassembly 1700 V Part No 861917 1900 V Part No 861918 INSTALLATION PROCEDURES Align the exhaust cover over the exhaust holes and screw the two 2 self tapping screws into the mating exhaust holes Remove the dead handle and dead handle gasket from the tool Drill 5 8 hole in motor housing to align with housing adapter Install the piped away exhaust gasket housing adapter original gasket and dead handle Connect the hose to the housing adapter and the muffler adapterand tighten the hose clamps securely VERTICAL GRINDERS GOVERNOR 8 SHUT OFF DISC Name of Part Quantity 204187 SE 13041 Governor Spring Green 1 418042 Governor Sp
10. Read the material safety data sheet of any materials involved in the grinding process Cleco grinders should be operated with 90 psig 6 2 bar max air pressure Excessive air pressure increases the loads and stresses on the tool parts and may result in breakage Installation of a filter regulator lubricator in the air supply line is highly recom mended Never use the air hose for supporting lifting or lowering the tool Use a safety line or cable on the tool when working in elevated areas Before tool is connected to air supply check throttle for proper operation i e throttle moves freely and returns to closed posi tion Being careful not to endanger adjacent personnel clear air hose of accumulated dust and moisture Use protective barriers where necessary hot sparks can burn Barriers also help reduce noise levels Before removing tool from service or chang ing accessories make sure air line is shut off and drained of air to prevent the tool from operating if the throttle is accidently engaged The use of a self relieving valve for this purpose is highly recommended Wheel guards are used to prevent serious injury to the operator in the event of wheel failure and must not be modified in any way Any wheel guard that is damaged or bent must be replaced Grinders must be held so that the opening in the guard is away from the operator The guard must be attached to the grinder with all bolts nuts and lockwashers in place and
11. be paid to the rotor blades and rotor bearings as failure of these parts could cause dam age to more expensive components Rotor blades should be replaced at every repair cycle or if they measure 7 16 11 mm or less at either end See Fig 1 Rotor bearings should be re placed if they are rough or show excessive looseness p Fig 1 Replace if 7 16 11mm or less at either end MOTOR UNIT REASSEMBLY During reassembly of the motor unit the rotor must be posi tioned by the front rotor collar No 869608 so that when as sembled the rotor will have 0015 038mm to 0025 063mm clearance between it and the front bearing plate Install the front rotor bearing No 869818 in the front bearing plate No 869814 and measure the depth of the bearings inner race from the face of the bearing plate Select or fit by sanding a rotor collar 0015 025mm to 0025 062mm larger than this dimension See Fig 2 SELECT OR SAND ROTOR COLLAR TO THIS MEASUREMENT PLUS 0015 038mm FRONT OOOO ai BEARING PLATE N N N N N N N E INNER RACE OF BEARING ROTOR COLLAR 0015 038mm Clearance ASS FRONT OOOO lt BEARING PLATE N N N N N N N INNER RACE OF BEARING Fig 2 Slip the rotor collar chamfered side first on the rotor spindle and drive the bearing plate and bearing drive on the bearing s inner race down on the rotor Place the assembly on a 5 16
12. e and tendonitis may be caused or aggravated by repetitious forceful exertions of the hands and arms Vibration may contribute to a condition called Raynaud s Syndrome These disorders develop gradually over peri ods of weeks months and years It is presently unknown to what extent exposure to vibrations or repetitive motions may contribute to the disorders Hereditary factors vasculatory or circulatory problems exposure to cold and dampness diet smoking and work practices are thought to contribute to the conditions Tool operators should be aware of the following warning signs and symptoms so that a problem can be addressed before it becomes a debilitating injury Any user suffering prolonged symptoms of tingling numbness blanching of fingers clumsiness or weakened grip nightly pain in the hand or any other disorder of the shoulders arms wrists or fingers is advised to consult a physician If it is deter mined that the symptoms are job related or aggravated by movements and postures dictated by the job design it may be necessary for the employer to take steps to prevent further occurrences These steps might include but are not limited to repositioning the workpiece or redesigning the workstation reassigning workers to other jobs rotating jobs changing work pace and or changing the type of tool used so as to minimize stress on the operator Some tasks may require more than one type of tool to obtain the optimum operator too
13. e overspeed shut off disk Have the tool serviced and check for an overspeed condition After a problem causing overspeed is corrected the disc must be reset by clicking it to its normal position This information is a compilation of general safety practices obtained from various sources available at the date of produc tion However our company does not represent that every acceptable safety practice is offered herein or that abnormal or unusual circumstances may not warrant or require additional procedures Your work may require additional specific safety procedures Follow these procedures as required by your com pany For more information see the latest edition of ANSI B186 1 Safety Code for Portable Air Tools and ANSI B7 1 Safety Requirements for the Use Care and Protection of Abrasive Wheels available from the American National Standards Insti tute Inc 11 West 42nd Street New York NY 10036 GUARD DEPRESSED CENTER WHEEL GUARDS WHEEL CAPACITY Size Type 27 Type 28 WRENCHES AND ADAPTORS 7 867740 867740 7 Dia x 1 4 Thick Max 175mm x 6 4mm 9 867741 869067 9 Dia x 1 4 Thick Max 225mm x 6 4mm m ID OS 6 i f E E GUARD CUP WHEEL CAPACITY WARNING RE 5 861892 5 Dia x 2 Height 125mm x 50mm Type 6 or 11 LABEL 7 E je 861893 6 Dia x 2 Heigh
14. l task relationship The following suggestions will help reduce or moderate the effects of repetitive work motions and or extended vibration exposure Use a minimum hand grip force consistent with proper control and safe operation Keep body and hands warm and dry cold weather is reported to be a major factor contributing to Raynaud s Syndrome Tasks should be performed in such a manner that the wrists are maintained in a neutral position which is not flexed hyperextended or turned side to side Avoid anything that inhibits blood circulation Smoking Tobacco another contributing factor Cold Temperatures Certain Drugs Avoid OK Avoid Avoid OK Avoid VA A L I Extension Neutral Flexion Radial Deviation Neutral Ulnar Deviation Stressful postures should be avoided select a tool appropriate for the job and work location Avoid highly repetitive movements of hands and wrists and continuous vibration exposure after each period of operation exercise to increase blood circu lation Use quality abrasive wheels Keep tool well maintained and replace worn parts Work gloves with vibration reducing liners and wrist supports are available from some manufacturers of industrial work gloves Tool wraps and grips are also available from a number of different manufacturers These gloves wraps and wrist sup ports are advertised claiming to reduce and moderate the effects of extended vibration exposure and
15. p Operation 8 Service Manual COOPER Tools 823008 2 01 Cleco 1700 amp 1900 Series Vertical Grinders Series 17 1700 Wheel Type 19 1900 07 7 Type 27 or 28 Depressed Center Wheel 09 9 Type 27 Depressed Center Wheel RPM 11 9 Type 28 Depressed Center Wheel Ei 9p i 05 5 Cup Type 6 or 11 Generation 06 6 Cup Type 6 or 11 B Second ss Sanding Shroud Type V Vertical Throttle Terminations Quick Release L Lever Lock Off S Self Closing Thumb For additional product information visit our website at http www clecotools com NORTH AMERICA EUROPE CooperTools Cooper Power Tools GmbH amp Co P O Box 1410 Postfach 30 Lexington SC 29071 D 73461 Westhausen Safety Recommendations For your safety and the safety of others read and understand the safety recommendations before operating any grinder Always wear protective equipment and clothing A WARNING Impact resistant eye protection must be worn while operating or working near this tool Caution Faceshields do not provide unlimited protection against flying particles and are not to be considered as eye protection ANSI Z87 1 states that separate eyewear shall be used For additional information on eye protection refer to Federal OSHA Regulations 29 CFR Section 1910 133 Eye and Face Protec tion and ANSI Z87 1 Occupational and Educational Eye and Face Protection This standard is available from the American National Standards
16. pe qe sepes pee pes ges pene p es pe ee e o e oe un om ER ee eH ER ER EC ERI jefe plo ej ocr laa pe p e e pee e e ae eje os pe e p s ee MS WI e SES Denotes parts not included in subassemblies listed Be low The complete throttle handles can be purchased as a subassembly using the code numbers listed below Self Closing Thumb Throttle 861898 Quick Release Thumb Throttle 861897 Lock Off Lever Throttle 861896 COOPER Tools CooperTools 670 Industrial Drive Lexington SC 29072 Phone 803 359 1200 Fax 803 359 2013 www clecotools com
17. r being sure the tang on the spring engages the hole in the spider Screw the governor adjusting nut No 204730 on the governor screw ap proximately six 6 turns Final speed adjustment is made after the tool is completely assembled using the governor adjustment wrench No 204729 IMPORTANT After the governor is completely assembled in stall it left hand threads on the rear of the rotor shaft and torque to 40 45 ft Ibs 54 60 Nm In cases where a torque wrench is not available the governor should be hand tightened to a snug position then tightened by going beyond the hand tight condition 180 MOTOR INSTALLATION The spring washer No 869817 should be placed in the housing with the large diameter against the motor housing cone side up Slip the motor into the housing making sure the rear cylin der pin and motor air inlet are positioned as shown in Fig 4 This positions the exhausts slots for minimum sound level The O ring No 834619 should be inserted into the governor hous ing and the governor housing placed on the motor housing Insert the four casing bolts and tighten the nuts snugly but not to full torque Install the driving flange No 204636 torque to 50 60 ft lbs 68 80 Nm Attach the air hose and run the tool The spindle must turn freely Tighten the housing bolts to 60 70 in Ibs 6 8 7 9 Nm and run the tool again checking to see that the spindle turns freely Motor Air Inlet Cylinder Pin
18. repetitive wrist trauma Since they vary widely in design material thickness vibration reduction and wrist support qualities it is recommended that the glove tool wrap or wrist support manufacturer be consulted for items designed for your specific application WARNING Proper fit of gloves is important Improperly fitted gloves may restrict blood flow to the fingers and can substantially reduce grip strength USE QUALITY ABRASIVE WHEELS The primary source of vibration when using a portable grinder is an abrasive wheel that is out of balance out of round untrue or possibly any combination of all three The use of quality abrasive wheels which are well balanced round and true is highly recommended as they have been found to significantly reduce vibration Some abrasive wheels lose their balance roundness and trueness as they wear from use Because of the abusive nature of the vibration caused by out of balance out of round and untrue condition of some abrasive wheels itis felt that these wheels are more susceptible to failure Excessive vibration may signal imminent wheel failure Flat spotting of the abrasive wheel caused by grinding the wheel to a stop after the power has been shut off can result in changes to the balance and shape of the wheel Be sure the grinding wheel has stopped before setting the tool down Set the tool in a tool rest or tool holder when not in use EE EEE aa Safety Recommendations WIRE BRUSHES
19. ring No Colo 11 PARTNO 413210 GovemorWeight 212 413270 Govemorweignt _ 2 2 867770 Governor Pin Retainer 869099 Governor Spider Jess EENEEEE FER ees PE loess 413048 204187 y 2941 87 GOVERNOR WEIGHT RPM PART NO DIMENSION X 4 500 413270 3 4 19mm 6 000 413270 3 4 19mm T se a 7 200 413210 1 2 12 7mm 204187 as R a 7 700 413210 1 2 12 7mm 0 204187 GOVERNOR SPRING RPM PART NO COLOR 4 500 413041 GREEN OVERSPEED SHUT OFF DISC 6 000 413042 NONE RPM PART NO 7 200 413041 GREEN 4 500 869834 7 700 6 000 869835 7 200 869836 7 700 869837 PART LIST OVERSPEED SHUT OFF DISC AND RELATED COMPONENTS 865520 PART NO NAME OF PART 865520 O Ring 2 1 4 x 2 3 8 4 500 RPM Overspeed Shut off Disc lt 413041 GREEN esse 867765 869835 6 000 RPM Overspeed Shut off Disc 869836 7 200 RPM Overspeed Shut off Disc 869837 7 700 RPM Overspeed Shut off Disc IMPORTANT NOTE The RPM rating and part number are etched on the surface of the disc VERTICAL GRINDERS MOTOR UNIT PartNo Name of Part Qty 201787 Wheel Retainer Kit incl 204635 204732 amp 204663 202020 Drive Screw 203011 Instruction Plate 203208 Instruction Plate 204635 Adaptor Available 204636 Driving Flange Rotor Collars 204643 Rotor Blade 1900 Part No
20. t 4j L 7 or 9 DEPRESSED CENTER Type 27 or 28 WHEEL GUARD and ADAPTOR KIT NOTE For wheels with throw away adaptors No 843851 spacers should be used to properly space the wheel within the guard Oo 3 y GUARD Size Type27 WARNING 7 867740 LABEL 202408 9 867741 844287 Lockwasher 843851 aD aD 842341 0 Spacer 2 Required Hex Nut 843586 Adaptor A X 843587 Adaptor Nut 849834 Wrench STACKED ABRASIVE DISCS M o DRIVING FLANGE WRENCH Part No 889381 GOVERNOR ADJUSTING WRENCH Part No 204729 OPERATING INSTRUCTIONS READ SAFETY RECOMMENDATIONS BEFORE CONNECTING TOOL The 1700 and 1900 Series Grinders are designed to operate on 90 psig 6 2 bar maximum air pressure using a 3 4 hose up to 8 in length If additional length is required the next larger hose size may be connected to the 8 whip hose LUBRICATION An automatic in line filter lubricator is recommended as it in creases tool life and keeps the tool in sustained operation The in line lubricator should be regularly checked and filled with a good grade of 10W machine oil Proper adjustment of the in line lubricator is performed by placing a sheet of paper next to the exhaust ports and holding the throttle open approximately 3
21. t 150mm x 50mm Type 6 or 11 0 202405 844287 t gt 2 50mm MAX ALWAYS USE WHEEL RETAINER AND RETAINER BOLT Lockwasher ID 842341 z Hex Nut Wheel Retainer Kit for Type 6 or 11 Cup Wheels Part No 201787 x aaa i 204635 5 125mm or 6 150mm X3 Wheel Retainer Max CUP Type 6 or 11 With Stationary Guard lt x 204663 Retainer Bolt im tri WARNING LABEL 202405 ES aD GUARD Size Type 6 or 11 5 861892 ii 6 861893 844287 Lockwasher 842341 Hex Nut E 8 ITA ZA 7 7 7A n W PHAN N VILLA LL WIRE BRUSH GUARD SANDING SHROUD Size Type 27 203988 1 WARNING 7 867740 LABEL 202408 9 867741 844287 Lockwasher 843851 D_ UD 842341 Spacer 2 Required Hex Nut SANDING PAD Size Part No 5 125mm 849848 849259 Adapter Nut 7 175mm 849913 849834 A n 9 225mm 849914 Wrench 5 7 OR 9 SPIRAL COOL SANDING PAD WARNING LABEL 202408 844287 Lockwasher aD aD 842341 js e Hex Nut 849269 i Adapter Ki
22. the wheel When starting work with a cold wheel apply it gradually to the workpiece until the wheel becomes warm When the remaining portion of a Type 6 or 11 cup wheel can no longer be used do not use a hammer to break up the remaining rock sothatit can be removed This is a dangerous practice and can lead to spindle damage or breakage Instead use a back up wrench on the flange and a strap wrench DO NOT CONTINUE TO USE A GRINDER IF t is not equipped with the proper wheel guard The speed rating of the wheel is less than the speed of the grinder lt starts to vibrate You sense any changes in tool speed or an unusual increase in noise output that would indicate the tool is running at excessive speed You notice excessive end play in the spindle You hear any unusual sound from the grinder RETURN THE TOOL TO THE TOOL CRIB FOR SERVICE IMMEDIATELY Safety Recommendations WARNING Repetitive work motions and or vibration can cause injury to hands and arms Use minimum hand grip force Keep body and hands warm and dry Avoid anything that inhibits blood curculation Avoid continuous vibration exposure Keep wrists straight Avoid repeated bending of wrists and hands Some individuals may be susceptible to disorders of the hands and arms when performing tasks consisting of highly repetitive motions and or exposure to extended vibration Cumulative trauma disorders such as carpal tunnel syn drom
23. tle open approximately 30 seconds The lubricator is properly set when a light stain of oil collects on the paper Excessive amounts of oil should be avoided STORAGE In the event that it becomes necessary to store the tool for an extended period of time overnight weekend etc it should receive a generous amount of lubrication at that time and be run for several seconds to distribute the oil before disconnecting the air supply This will reduce the possibility of corrosion and displace any water that may be trapped in the tool Water trapped in the tool could cause the governor to freeze and malfunction if tool is exposed to freezing temperatures Note Water in the air system increases tool maintenance costs and can cause the tool to malfunction when it is stored and or operated in freezing conditions Proper repair procedures and the use of original Cleco service parts and bearings rather than substitutes will return the tool to factory specifications of precision and balance and minimize vibration The governor should be checked periodically to be sure the governor mechanism is clean in good operating condition and functioning properly The 1700 and 1900 Series grinders are equipped with the CLECO SHUT OFF disc which is designed to shut the tool down in the event of excessive overspeed Although it adds a measure of safety it should not be considered a substitute for a wheel guard If the tool fails to run it may be due to th
24. to be re placed DISASSEMBLY OF THE GOVERNOR Remove the governor pin retainer No 867770 and using a 3 32 2mm punch drive out the governor weight pins No 413050 After removing the weights and two washers the gov ernor cone pin No 413047 may be driven out using the 3 32 2mm punch It is important that a new governor cone pin is used during reassembly of the governor SEE GOVERNOR RE ASSEMBLY Unscrewing the governor adjusting nut No 204730 will allow the removal of the governor spring THROTTLE HANDLE MAINTENANCE Should the throttle valve seal No 869539 need replacing un screw the throttle valve cap No 867753 for removal of the throttle valve and components The tool is eguipped with two 2 air screens for protection of the internal motor parts from foreign material The air screen located in the inlet bushing may be removed for cleaning and inspection by unscrewing the inlet bushing No 867758 If the screen is torn or damaged the inlet bushing should be replaced The air screen No 867729 located between the throttle handle and motor housing may be removed for cleaning and inspection by unscrewing the two 2 socket head cap screws No 813041 If the screen cannot be cleaned or if it is torn it should be re placed REASSEMBLY GENERAL The tool is reassembled in the reverse order of disassembly All parts should be thoroughly cleaned and inspected before reas sembly Particular attention should
25. wheel guard in place Causes of abrasive wheel failures have been traced to such factors as Dropping bumping or abuse careless handling of the grinder or wheel Improper mounting Imbalance Improper shipment or storage Exposure to water solvents high humidity freezing and extreme temperatures Mismatched speed ratings Age Abrasive wheels known to have been subjected to any of the above conditions can violently disintegrate Never operate a vertical grinder without proper wheel guard in place CHECK FLANGE Check the grinder spindle and driving flange for signs of damage or abuse A vertical grinder driving flange must be flat unre lieved and free of nicks and burrs The spindle must not be bent and the threads should be free of any damage that might keep an abrasive wheel and its mount from locating centrally or seating properly against the driving flange ABRASIVE WHEEL MOUNTING amp BEGINNING GRINDING OPERATION Sufficiently tighten wheel to prevent spin off Do not over tighten and do not install wheel by spinning it on by throttling the tool This is a dangerous practice and can cause spindle damage or breakage Always use a wheel retainer on a Type 6 or 11 cup wheel Before beginning operations or after mounting a wheel run the tool for one 1 minute in a protected enclosure to check the integrity or the wheel During this time or any other time no one should stand in front of or in line of

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