Manual - Henry Tools
Contents
1. N A q he S 5 v aM Q 4 Guard 501 4A 400 2 Gi22000RPm 400 2 15000RPm 500 G 42A lt EA al oI 9 aa fel E e io 5 gt agm fal e gt c ae S N ie a Email daviidh msn com e Website www Henrytools com Ph 216 291 1011 or 800 826 5257 e Fax 216 291 5949 or 800 303 2800 General Operators Instructions and Service Manual Part Number 002 diner ss000RPM OOOO 4003 d Rear PlatelStandard moos id Roto oz Seun SSS C 3 8 Threaded Spacer mono wear mona O merse wosa foses moan eearingrean ooann Extended Case Aluminum Wheel Washers for 4 Wheels son Tsenpo sorts OO feens 8A ee Models 42 GHL Description Part Number GUARDS 412888 3 Guard 501 3A and use an anti whip e Always turn off the air supply bleed the air pressure and disconnect the air supply hose before installing removing or adjusting any accessory on this tool or before performing any maintenance on this tool or any accessory Ensure that the grinding wheel or other abrasive accessory is correctly mounted and tightened before use Always replace a damaged bent or severely worn wheel guard Do not use a wheel guard that has been subjected to wheel failure e Guard opening must face away from the operator Bottom of wheel must not project beyond guard DO NOT MODIFY THE TOOL SAFETY DEVICES OR2. HENRY TOOLS ua Industrial Airtools at Work General Safety and Maintenance anosa ALLI Manual O sion Exhaust Throttle Speed Rated Case Length Diam Air coe Number Direction Type Power Material ee kad eter Front Consumption Thread coe Output Housing Loa GHL Side a Lever 15000 0 9 H P Alum 2 4 Ibs kal 5 8 1 50 Inch 25 cfm 3 8 24 X 1 0 22000 675 W 1 1kg Alum case only 219m 38 1 11 8 L S Inch K R P M mm Safety Lever THe HENRY TOOL CO MANUFACTURED BY HenRY TOOLS 498 So Belvoir Blvd South Euclid OH 44121 U S A Ph 216 291 1011 or 800 826 5257 e Fax 216 291 5949 or 800 303 2800 Email daviidh msn com e Website www Henrytools com General Operators Instructions and Service Manual Models 42 GHL GRINDER SAFETY ALWAYS COMPLY WITH 1 General Industry Safety amp Health Regulations Part 1910 OSHA 2206 available from Sup t of Documents Government Printing Office Washington DC 20402 2 Safety Code for Portable Air Tools ANSI B186 1 available from American National Standards Institute Inc 1430 Broad way New York NY 10018 3 State and Local regulations 4 Portions of the above codes and regulations are listed below for quick reference THESE EXCERPTS ARE NOT INTENDED TO BE ALL INCLUSIVE STUDY AND COMPLY WITH ALL REGULATIONS 1 Always turn off the air supply and disconnect the air supply hose before installing removing or adjusting any accessory on this tool or before performi
3. Run at full throttle for one minute Defective wheels usually come apart immediately When starting a cold wheel apply to the work slowly allow wheel to warm up gradually Model 42GH grinders are equipped with a guard from the manufacturer A guard is not needed for a mounted wheels two inches 50 mm or smaller b grinders used for internal work while within the work being ground 4 At least one half of the mandrel length i e mounted wheel burr etc must be inserted into the collet Secure collet chuck tightly 5 Before mounting or removing a wheel or carbide burr disconnect grinder from air supply The wheel should fit properly on arbor do not use bushings or wheel flanges to adapt a wheel to any arbor unless recommended by manufacturer Wheel flanges should be at least 1 3 the diameter of the grinding wheel 6 Wear safety goggles and other protective cloth ing Continuous exposure to vibration may cause injury to hands and arms 7 Properly maintained air tools are less likely to fail or cause accidents If tool vibrates unusually or produces an unusual noise repair immediately LUBRICATION Check for wet or dirty air Excessive moisture in the air supply tends to wash lubricant away from the working parts of the tool and rust or corrode the interior Grit will damage the interior by scoring closely fitted parts and impede the action of the tool If the above are found in order disconnect tool and pour a liberal
4. To make sure there are no air leaks in handle unscrew cap 869311 and lift out spring 400 G 34 and throttle valve 400 G 29 Remove oring 400 G 31 with a sharp tool and replace with a new O ring www HenryTools com Page 39 4 Z A bs lt T m 9 faj Z 5 2 D lt gt fee gt 9 jaa S D ies Oa lt Ph 216 291 1011 or 800 826 5257 e Fax 216 291 5949 or 800 303 2800 Email daviidh msn com e Website www Henrytools com
5. plate 400 7 7 Remove brass jaws from vise Clamp wrench flats of case 400 G 1 in vise Remove bearing cap 500 16B left hand thread Using an arbor press press on the front of the spindle This will enable the rear bearing 400 G 11 to drop out and the spindle to be removed 8 Using a 3 4 round bar tap out bearing 501 13 from case 400 GH 1 REASSEMBLY 1 Press bearings 501 13 into recess in front of the case 400 GH 1 3 Spin 500 16B back onto 400 GH 1 NOTE Left Hand Thread a Press spindle 400 GH 14 3 through bearings from the rear 2 Press bearing 400 G 11 into case from the rear and place the front thrust plate 400 7 over the bearing 3 Place case 400 GH 1 3 in vise by the flats Tighten bearing cap 500 16B Left hand thread Make sure 500 16B is tight 4 Replace key 400 10 and drop rotor 400 5 into place With BRASS jaws installed on vise grab hold of rotor 400 5 Replace flange 500 G 42A onto spindle 400 GH 14 and tighten 5 Place cylinder 400 2G over rotor 400 5 Place rear thrust 400 3 on cylinder make sure pin in cylinder lines up with hole in rear plate 400 3 Press bearing 400 9 into rear thrust with a suitable bearing driver 6 Place o ring 320 9R washer 320 9W in rear thrust Place snap ring 400 3 into groove 7 Place O ring 400 51 onto case 400 G 1 Place case 400 G 1 into sleeve 400 G 17 Slide this assembly onto case 400 GH 1 and hand tighten 8 Optionat Step
6. reaction torques can occur at or below the recommended air pressure 8 Tool accessories may continue to rotate briefly after throttle is released 9 Air powered tools can vibrate in use Vibration repetitive motions or uncomfortable positions may be harmful to your hands and arms Stop using any tool if discomfort tingling feel ing or pain occurs Seek medical advice before resuming use 10 This tool is not designed for working in explosive atmo spheres Do not use this tool on materials whose dust or fumes can cause a potentially explosive environment 11 12 This tool is not insulated against electric shock 13 Product Safety information When Placing the Tool in Service e NEVER MODIFY ANY PART OF THIS TOOL Always install operate inspect and maintain this product in accor dance with all applicable standards and regulations local state country federal etc e Always use clean dry air at 90 psig 6 2 bar 620 kPa maximum air pressure at the inlet Higher pressure may result in hazardous situations including excessive speed rupture or incorrect output torque or force e Be sure all hoses and fittings are the correct size and are tightly secured e Install a properly sized Safety Air Fuse upstream of hose Revised 12 12 09 www HenryTools com Page 37 wee W v 400 G 42 500 G 44 X 400 G 1 400 G 1 S 400 G 47 w lt 6 Wy 100 75 3 4 ee RS 400 51 Sh at 400 G 17 400 G 17 a 400 773
7. ACCESSORIES e Use accessories recommended by Henry tools Do not use this tool if the actual free speed exceeds the rated rpm Check the free speed of the Grinder before mounting a wheel after all tool repairs before each job and after every 8 hours of use Check speed with a calibrated tachometer without the abrasive product installed Do not use any wheel or other abrasive accessory whose maximum operating speed as defined by its manufacturer is less than the rated speed of the Grinder e Inspect all grinding wheels for chips or cracks prior to mounting Do not use a wheel that is chipped cracked or otherwise damaged Inspect arbor threads amp clamping devices for damage amp wear prior to mounting wheel or other abrasive accessory Do not use a grinding wheel that has been exposed to freezing temperatures extreme temperature changes high humidity solvents water or other liquids e Make certain grinding wheel or other abrasive accessory properly fits the spin dle The wheel should not fit too snugly or too loosely Plain hole wheels should have about 007 0 17 mm maximum diametral clearance Do not use reducing bushings to adapt a wheel to any arbor unless such bushings are supplied by and recommended by the wheel manufacturer e Always use the wheel flanges furnished by the manufacturer and appropriate for the wheel size and type Never use a makeshift flange or plain washer Flanges should be in good condition and fr
8. amount of recommended oil or an SAE 10 oil cut with an equal quantity of kerosene into the air inlet Operate the tool to allow lubricant to flush accumulated gum and grit out the exhaust If outside factors are not to blame dissassemble the tool clean and inspect all parts and replace those worn or broken Coat parts with airtool oil and reassemble Pour about 1 2 oz in air inlet and Revised 12 12 09 Models 42 GHL run tool to allow oil to be carried to interior DISASSEMBLY 1 DISCONNECT AIR SUPPLY and remove all wheels and accessories 2 Clamp wrench flats of case 400 GH 1 in vise and unscrew backhead 400 G 4 Unscrew case 400 G 1 and remove it Lift off exhause sleeve 400 G 17 3 Remove snap ring 400 39 and 320 9R and 320 9R 4 Remove assembly from vise Place brass jaws in vise Clamp cylinder and rear thrust assembly in vise Using a 3 16 punch tap out lightly on the end of the spindle 400 GH 14 3 This will allow the cylinder 400 2 G end plate 400 3 bearing 400 9 and blades 400 6 to be removed 5 Lightly grasp Cylinder 400 2G and endplate 400 3 in vise Using a 5 16 punch tap out bearing 400 9 from end plate 400 3 Being careful not to drop the entire assembly on the floor after freeing the bearing 6 Place rotor 400 5 whcih is stiill attached to the spindle in a vise with brass jaws Unscrew wheel flange 500 G 42A NOTE right hand thread Remove ro tor key 400 10 and front thrust
9. ee of nicks burrs and sharp edges Ensure that the thread type and size of the threaded abrasive product exactly matches the thread type and size of the spindle e Prevent the spindle end from touching the bottom of the hole of cups cones or plugs with threaded holes intended to be mounted on machine spindles by comparing dimensions and other relevant data for them Do not use an unguarded grinder unless used for internal work and only oper ated when the work offers protection Revised 12 12 09 z i lt k A x e ro gt fal 5 E e N 5 ae i om gt m c po S N e e eN Ph 216 291 1011 or 800 826 5257 e Fax 216 291 5949 or 800 303 2800 Email daviidh msn com e Website www Henrytools com General Operators Instructions and Service Manual This tool is designed to operate on 90 psig 6 2 bar maximum air pressure with 1 4 8mm hose Do not use any wheel having an operating speed lower than the actual free speed on grinder SAFETY 1 Check speed of tool with tachometer before ev ery wheel amp burr change If RPM excees rated speed stamped on tool servicing is required 2 Inspect grinding wheels for bends chips nicks cracks or severe wear If the wheel has any of these or has bee soaked in liquids do not use On brushes check for loose wires that may fly off in operation 3 Start new grinding wheels under a steel bench
10. ng any maintenance on this tool 2 After mounting a wheel or other abrasive accessory the Grinder shall be run in a protected enclosure at gradually increasing speed for at least 60 seconds When starting work with a cold wheel apply it gradually to the workpiece until it becomes warm Do not continue to use a grinder if e The speed rating of the accessory is less than the speed of the grinder Iftool vibrates repair immediately e You sense changes in tool speed or an unusual increase in noise that would indicate tool is running at excessive speed e You notice excessive end play in spindle e You hear any unusual sound from grinder RETURN THE TOOL TO THE TOOL CRIB FOR SERVICE IMMEDI ATELY 3 Make certain no one is in front of or in line with the wheel or other abrasive accessory Be aware that it may fail at this time if it is defective improperly mounted or the wrong size and speed Stop immediately if considerable vibration or other defects are detected Shut off the air supply and determine the cause 4 OPERATOR PROTECTIVE EQUIPMENT Wear goggles or face shield at all times tool is in operation Other protective clothing shall be worn if necessary SEE REGULATIONS 5 Keep hands loose clothing and long hair away from rotating end of tool 6 Anticipate and be alert for sudden changes in motion during start up and operation of any power tool 7 Keep body stance balanced and firm Do not overreach when operating this tool High
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