GR30 Service Manual updated.cdr
Contents
1. 28409 Composite Sticker All stickers plaques and decals shown above are located on the wheel guard of the grinder Not all stickers are furnished on all tool models Consult parts list and model number for details The SAFETY TAG P N 15875 shown at right smaller than actual size is attached to the tool when shipped from the factory Read and understand the safety instructions listed on this tag before removal We suggest you retain this tag and attach it to the tool when notin use od y 1 FAILURE TO USE HYDRAULIC HOSE LABELED AND CERTI FIED AS NON CONDUCTIVE WHEN USING HYDRAULIC TOOLS OR NEAR ELECTRICAL LINES MAY RESULTIN DEATH OR SERIOUS INJURY BEFORE USING HOSE LABELED AND CERTIFIED AS CONDUC ON OR NEAR ELECTRIC LINES BE SURE THE HOSE IS MAINTAINED AS NON CONDUC TIVE THE HOSE SHOULD BE REGULARLY TESTED FOR ELECTRIC CURRENT LEAKAGE IN ACCORDANCE WITH YOUR SAFETY DEPARTMENT INSTRUCTIONS 2 A HYDRAULIC LEAK OR BURST MAY CAUSE OIL Ke THEBODYOR GAUSEOTHER SEVERE PERSONAL A DO NOT EXCEED SPECIFIED PRESSURE FOR THIS TOOL EXCESS PRESSURE MAY CAUSE A LEAK OR BURST DO NOT EXCEED RATED WORKING PRESSURE OF HYDRAULIC HOSE USED WITH THIS TOOL mE PRESSURE MAY CAUSE A LEAK OR IMPORTANT READ OPERATION MANUAL AND SAFETY INSTRUCTIONS FOR THIS TOOL BEFORE USING IT USE ONLY PARTS AND REPAIR PROCEDURES APPROVED BY STANLEY AND DESCRIBED IN THE OPERATION MANUAL2. Cleaning and Inspection Cleaning Clean all parts with a degreasing solution Blow dry with compressed air or use lint free cloths Gear Chamber Motor Cap The chamber bores and bottoms around the shaft 15 Service Instructions bushings should be polished and not rough or grooved If the bushing bores are yellow bronze replace them and investigate the cause of wear The flat surfaces around the chamber and bolt holes should be flat and free of nicks or burrs that could cause misalignment or leaks Bushings The inside of the bushings should be gray with some bronze showing through If significant yellow bronze shows replace the bushings Inspect the motor shaft and idler shaft for corresponding wear and replace as required Gears The drive and idler gears should have straight tips without nicks square tooth ends and a smooth even polish on the teeth and end faces Replace the gear if cracks are present Main Housing Assembly The surface near the gears should show two interconnecting polished circles without a step Shafts The shaft diameter at the bearing and seal locations must be smooth Grooves roughness or a reduced diameter indicate fluid contamination or damaged bushings Grit particles may have been imbedded in the bushings grinding into the hardened shaft If abnormal shaft wear as noted above occurs more than normal polishing replace both the shaft and associated bushings Also check th
3. 3 Clean the surfaces of the tool to remove any dirt or grease Important Never use a chipped damaged or worn 10 grinding wheel 4 Check the grinding wheel Make sure the correct wheel is selected for the job The wheel must conform to the specifications listed in this manual Make sure the wheel is free of dirt and other foreign particles especially the surfaces that contact the tool and jam nut Check the wheel for damage or wear 5 Ifthe wheel does not include an integral thread use a depressed center wheel adapter in the hole on the wheel Important Never over tighten the grinding wheel jam nut by impacting either wrench with a mallet or hammer Sufficient torque is attained by hand tightening the nut with two open end wrenches 6 Install the grinding wheel Thread the grinding wheel or adapter on the shaft and tighten using appropriate wrenches Screw the jam nut on the output shaft Tighten the nut securely using two open end wrenches Place one wrench on the flats of the output shaft and the other on the jam nut Hydraulic Hose Connection Proper installation of the hydraulic hoses is extremely important for safe reliable operation of the tool Make sure the hoses are securely attached to the tool before turning on the hydraulic power Note If possible connect the free ends of the hoses together when not in use The pressure increase in uncoupled hoses left in the sun may make
4. NT CLOTH TO REMOVE DIRT AND MOISTURE AND TEST HOSE FOR MAXIMUM ALLOWABLE CURRENT LEAKAGE IN ACCORDANCE WITH SAFETY DEPARTMENT INSTRUCTIONS 6 AFTER EACH USE STORE IN A CLEAN DRY AREA DO NOT EXCEED HOSE WORKING PRESSURE OR ABUSE HOSE IMPROPER USE OR HANDLING OF HOSE COULD RESULT IN BURST OR OTHER HOSE FAILURE KEEP HOSE AS FAR AWAY AS POSSIBLE FROM BODY AND DO NOT PERMIT DIRECT CONTACT DURING USE CONTACT AT THE BURST CAN CAUSE BODILY INJECTION AND SEVERE PERSONAL INJURY SEE OTHER SIDE BE NENNEN SEE OTHER SIDE BE fo DO NOT REMOVE THIS TAG OVL SIHL SAOWSY LON OG V Side 1 Side 2 This Tag attached to Conductive hose shown smaller than actual size p n 29144 DANGER ET 1 DO NOT USE THIS HYDRAULIC HOSE ON OR NEAR ELECTRIC LINES THIS HOSE IS NOT CHECK ENTIRE HOSE FOR CUTS CRACKS LEAKS ABRASIONS BULGES OR DAMAGE TO LABELED OR CERTIFIED AS NON CONDUCTIVE USING THIS HOSE ON OR NEAR ELECTRIC LINES COUPLINGS IF ANY OF THESE CONDITIONS EXIST REPLACE THE HOSE IMMEDIATELY MAY RESULT IN DEATH OR SERIOUS INJURY NEVER USE TAPE OR ANY DEVICE TO ATTEMPT TO MEND THE HOSE FOR PROPER AND SAFE OPERATION MAKE SURE THAT YOU HAVE BEEN PROPERLY TRAINED IN CORRECT PROCEDURES REQUIRED FOR WORK ON OR AROUND ELECTRIC LINES AETEREACHUSE STORE IN ACEEAN DRYARER DO NOT EXCEED HOSE WORKING PRESSURE OR ABUSE HOSE IMPROPER USE OR HANDLING OF HOSE COULD RESULT IN BURST OR OTHER HOSE FAILURE KEEP HOSE AS FAR AWAY A
5. and install trigger assembly to main housing with capscrews 9 and lockwashers 31 16 Service Instructions Valve Spool 1 Lubricate and install a new o ring 21 on the valve spool 62 before installing valve spool into the main housing from the spring cap end Do not install the valve spool from the trigger side of the main housing as this will result in spool seal damage Ensure that the tab on the valve spool nose is aligned with the slot in the trigger 2 Install spring 76 behind valve spool Using Loctite 242 install the spring cap 67 to the main housing Gear Housing 4 Lubricate and press the shaft seal 27 into the gear housing 68 5 Install the bearing 25 on the lubricated output shaft 66 and secure with the retaining ring 26 6 Press the output shaft with attached parts into the gear housing 68 7 Install the thrust support 65 in the gear housing and the seal gasket 70 around the thrust support 8 Install the gear chamber and attached parts to the main housing using capscrews 30 and lockwashers 31 Wheel Guard For non CE Certified Grinders complete the following steps 1 Install the wheel guard 29 on gear housing and secure by tightening the capscrew on the guard Orient the wheel guard so it is between the operator and the working part of the wheel For CE Certified Grinders complete the following steps 1 Install wheel guard 29 on gear housing and sec
6. port Connect output return to OUT port Trigger difficult to Hoses connected to wrong ports on Connect input supply line to IN operate tool port Connect output return to OUT port Excessive back pressure If back pressure is greater than 250 psi 17 bar correct the return line obstruction or restriction Fluid gets hot Open center tool on closed center Tool designed for open center power unit circuit hydraulic system working hard Too much fluid going through tool Adjust flow for 9 gpm 34 Ipm maximum Circuit generating high heat with Use pump and rpm for producing flow controls open relief valve etc needed flow only Curcuit contaminants caused pump Contact your authorized Stanley and valve wear and high heat distributor for pump and valve operation replacement Install large clean filter and keep circuit fluid clean Grinding wheel Porting spool incorrectly installed Contact your authorized Stanley comes to abrupt distributor stop after release of trigger Mechanical failure Contact your authorized Stanley distributor 19 GR30 Parts Illustration Item O O1 F ND Part Qty 2 6 1 1 2 2 1 1 2 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 3 5 1 1 1 1 1 1 1 1 1 2 6 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 GR30 Parts List Description O ring 3 16 x 5 16 x 1 16 008 Lockwasher 5 16 I D
7. 0 Do not operate the tool unless thoroughly trained or under the supervision of an instructor 0 Always wear safety equipment such as goggles head protection and safety shoes at all times when operating the tool 0 Do not inspect or clean the tool while the hydraulic power source is connected Accidental engagement of the tool can cause serious injury 0 Do not operate this tool without first reading the Operating Instructions 0 Do not install or remove this tool while the hydraulic power source is connected Accidental engagement of the tool can cause serious injury 0 Never operate the tool if you cannot be sure that underground utilities are not present Underground electrical utilities present an electrocution hazard Underground gas utilities present an explosion hazard Other underground utilities may present other hazards Do not operate this tool in a potentially explosive environment 0 Do not wear loose fitting clothing when operating the tool Loose fitting clothing can get entangled with the tool and cause serious injury 0 Supply hoses must have a minimum working pressure rating of 2500 psi 175 bar 0 Be sure all hose connections are tight 0 The hydraulic circuit control valve must be in the OFF position when coupling or uncoupling the tool Wipe all couplers clean before connecting Failure to do so may result in damage to the quick couplers and cause overheating Use only lint free cloths 0 Do not op
8. 2138 bar HTMA Class Il 7 9 gpm 2000 psi EHTMA Category 30 Ipm 138 bar Sound Power Level 113 3 dBA Vibration Level Throttle Handle 3 6 m s Vibration Level Support Handle 2 6 m s This tool is for land use only Contact your authorized Stanley distributor for information about the GR29 underwater model General Safety Instructions Always observe safety symbols They are included for your safety and the protection of the tool A WARNING CAUTION This safety symbol may appear on This safety symbol appears in these This safety symbol appears in these the tool It is used to alert the instructions to identify an action instructions to identify an action or operator of an action that could that could cause bodily injury to the condition that could result in place him her or others in a life operator or other personnel damage to the tool or other threatening situation equipment This tool will provide safe and dependable service if operated in accordance with the instructions given in this manual Read and understand this manual and any stickers and tags attached to the tool and hoses before operation Failure to do so could result in personal injury or equipment damage 0 Operator must start in a work area without bystanders The operator must be familiar with all prohibited work areas such as excessive slopes and dangerous terrain conditions 0 Establish a training program for all operators to ensure safe operations
9. 25 on the output shaft The bearing should turn smoothly To replace the bearing first remove the retaining ring 26 then support the outer race and press down on the output shaft from the threaded end Do not reuse the ball bearing once it has been removed from the output shaft Motor Cap 1 Remove the capscrews 42 and lockwashers 2 securing the motor cap assembly 47 to the main housing assembly and lift off the motor cap assembly Do not in any way excessively force the motor cap off the main housing assembly 2 Remove the o ring 10 from the motor cap Main Shaft and Idler Shaft 1 Tap on the spline end of the main shaft 49 and push the shaft from the main housing 2 Remove the idler gear 46 and idler shaft 48 3 Remove the retaining ring 18 and then pick out the seal washer 45 back up ring 37 and o ring 4 from the main housing Valve Spool 1 Unscrew the spring cap 67 pick out the spring 76 and push the valve spool 62 out the spring cap end of the main housing Trigger 1 Remove the trigger 74 by first removing the capscrews 9 and lockwashers 31 and removing the trigger and trigger mount 75 as an assembly 2 Drive out the roll pin 23 Check Valve 1 Remove hex head plug 41 from each side of the main housing 2 Remove check valve 53 12 79 54 from main housing Note the orientation NOTE Make sure the idler shaft has been removed prior to completing this step
10. 3 Make sure the hydraulic power source has a relief valve set at a minimum of 2100 psi 145 bar 4 Check the tool and hydraulic system for proper operation and performance If the 12 equipment does not appear to operate properly have it serviced before use Cold Weather Operation Important Use an oil with the recommended specifications listed Using oil that is too viscous thick can damage the hydraulic system or tool Before using the tool in cold weather preheat the hydraulic fluid by operating the power unit at a low speed The oil should be at or above 50 F 10 C with a viscosity of 400 SSU 82 cs before operating the tool Open Center Closed Center Setup OC CC This tool can be configured to run on both open center and closed center systems Set for proper system before use 1 Determine system type 2 Remove hex plug 78 from spring cap using a 3 16 in Hex Closed Center Using a 3 16 in Hex reach through the hole in the spring cap and turn the selector screw fully clockwise When the selector screw bottoms closed center operation is selected Open Center Using a 3 16 in Hex reach through the hole in the spring cap and turn the selector screw counter clockwise until meeting resistance from the retaining ring Turn the selector clockwise and then counter clockwise to be sure the selector is being stopped by the retaining ring Do not force the selector screw Open center Operation is n
11. FIRST It is the responsibility of the operator and service technician to read rules and instructions for safe and proper operation and maintenance A cautious worker using common sense is the greatest safety device Certificate of Conformity CERTIFICATE OF CONFORMITY BEREINSTIMMUNGS ZERTIFIKAT CERTIFICAT DE CONFORMITE CEE D UN MARTEAU PIQUEUR OU D UN BRISE BETON EXAMINE STAN LEY 7 CERTIFICADO DE CONFORMIDAD CERTIFICATO DI CONFORMITA Hydraulic Tools I the undersigned Ich der Unterzeichnende Bu rrows J ames Je soussign 7 El abajo firmante Surname and First names Familiennname und Vemamen Nom et pr noms Nombre y apellido Cognome e nome lo sottoscritto hereby certify that the construction plant or equipment specified hereunder best tigt hiermit da die Konstruktion und Ausr stung wie folgt spezifiziert ist atteste que le brise b ton por el presente certifico que la fabrica o el equipo especificado a continuacion certifico che l impianto o l attrezzatura sotto specificata 1 Category Grinder Kategorie Cat gorie Categoria Categoria 2 Make Ausf hrung Marque Marca Fabbricazion Stanley 3 Type Typ Type Tipo Tipo GR3070101 4 Type serial number of equipment Typ und Serien Nr der Ausr stung ALL Num ro dans la s rie du type de mat riel Numero de serie tipo del equipo Matricola dell attrezzatura 5 Year of manufacture Baujahr ann e de fabrication A o
12. Roll Pin 1 8 O D x 625 Lg O ring 1 2 x 11 16 x 3 32 112 Rivet 1 8 42 Dowel Pin O ring 1 4 x 3 8 x 1 16 010 Setscrew 1 4 20 x 3 8 HSHCS 10 24 x 5 8 O ring 1 3 4 x 1 7 8 x 1 16 031 Cap amp Plug 1 2 Steel Ball 5 16 Hex Nipple 3 8NPT Cap amp Plug 3 8 O ring 441 x 558 x 072 905 Bushing Hose 451tc 01 05 06 08 08 12 5 Hose 471st 05 01 08 06 08 12 5 Retaining Ring Flow Control Label Hose 381 05 01 08 06 08 18 Hose 471st 05 01 08 06 08 18 O ring 1 2 x 5 8 x 1 16 014 O ring 5 8 x 3 4 x 1 16 016 Roll Pin 3 16 O D x 1 375 Lg Handle Bearing Retaining Ring Shaft Seal Hex Jam Nut 5 8 11UNC Wheel Guard Wheel Guard CE Hshcs 10 24 x 1 1 4 Lockwasher 10 Circuit Type D Sticker OC CC Sticker Clamp Screw Thumb Plate Stud 5 16 18UNC x 1 750 Back up Ring 112 Retaining Ring Drive Flange Hub Nut Hollow Hex Plug 10 SAE HSHCS 5 16 18 x 1 3 4 Bushing Bushing Seal Back up Washer Idler Gear Assy Motor Cap Assy Idler Shaft Main Shaft 3 8 Flushface Coupler Body 3 8NPT 3 8 Flushface Coupler Nose 3 8NPT GR30 Model No Sticker Check Valve Housing Check Valve Plug Railroad Help Desk Sticker Flow Control 8 5 GPM Sticker CE 25mm Composite Sticker Torsion Spring Information Plaque Roll Pin 3 16 O d x 1 000 Lg Valve Spool Selector Screw Seal Wiper Thrust Support Output Shaft 21 Notes Model GR3070101 Only Model GR3070101 Only Model GR3070101 Only Model GR30701SUP On
13. conductive Viscosity at min and max operating temps NOTE When choosing hydraulic fluid the expected oil temperature extremes that will be experienced in service determine the most suitable temperature viscosity characteristics Hydraulic fluids with a viscosity index over 140 will meet the requirements over a wide range of operating temperatures SSU Saybolt Seconds Universal C 20Lpm at 138bar BHTMA CATEGORY Typel 4 6 gpm 15 23 Ipm 2000 psi 138 bar 2100 2250 psi 145 155 bar 200 psi 14 bar 400 ssu 82 centistokes 140 F 60 C 3 hp 2 24 kw 40 F 22 C 25 microns 18 gpm 68 Ipm 100 400 ssu 20 82 centistokes Tool Category D 30Lpm at 138bar BHTMA CATEGORY Type Il 7 9gpm 26 34 Ipm 2000 psi 138 bar 2100 2250 psi 145 155 bar 200 psi 14 bar 400 ssu 82 centistokes 140 F 60 C 5 hp 3 73 kw 40 F 22 C 25 microns 30 gpm 114 Ipm 100 400 ssu 20 82 centistokes 40Lpm at 138bar EHTMA CATEGORY 10 5 11 6 gpm 36 44 Ipm 2000 psi 138 bar 2100 2250 psi 145 155 bar 200 psi 14 bar 400 ssu 82 centistokes 140 F 60 C 6 hp 4 47 kw 40 F 22 C 25 microns 35 gpm 132 Ipm 100 400 ssu 20 82 centistokes Type Ill 11 13 gpm 42 49 Ipm 2000 psi 138 bar 2100 2250 psi 145 155 bar 200 psi 14 bar 400 ssu 82 centistokes 140 F 60 C 7 hp 5 22 kW
14. de fabricacion Anno di fabbricazione 2003 Has been manufactured in conformity with EEC Type examination as shown wurde hergestellt in bereinstimmung mit EEC Typ Pr fung nach est fabriqu conform ment au x type s examin s comme indiqu dans le tableau di apr s ha sido fabricado de acuerdo con tipo examen EEC como dice stata costruita in conformit con le norme CEE come illustrato Approved body Date of expiry Pr fung durch Ablauf datum Directives particuli res Organisme agr Date d expiration Directriz Aprobado Fecha de caducidad iretti Collaudato Data di scadenza 6 SpecialProvisions None Spezielle Bestimmungen Dispositions particuli res Provisiones especiales Misure special Done at Ort Fait Dado en Fatto a Stanley Hydraulic Tools Milwaukie Oregon USA Date Datum le Fecha Data 7 23 03 Pos di Signature Unterschrift Signature Firma Firma P di CE Leur I Position Position Fonction Puesto Posizione Engineering Manager 3 Specifications Flow range 7 9 gpm 26 34 lpm Optimum flow 8 gpm 30 Ipm Pressure 1000 2000 psi 70 140 bar RPM 5800 at 8 gom 5800 at 30 lpm Porting size 8 SAE Weight with wheel guard 12 lbs 5 7 kg Length 8 in 20 3 cm Width 10 in 25 4 cm Grinding Wheel Diameter maximum 9 in 229 mm Thickness 5 32 in 4 mm Arbor hole 5 8 11THD 5 8 11THD Rated speed minimum 6500 rpm HTMA Class 4 6 gpm 2000 psi EHTMA Category 20 Ipm
15. 40 F 22 C 25 microns 40 gpm 151 Ipm 100 400 ssu 20 82 centistokes NOTE These are general hydraulic system requirements See tool Specification page for tool specific requirements Operating Instructions Pre Operation Procedures The GR30 Hydraulic Grinder Requires minimum setup for operation When the installation and operation instructions are carefully followed the tool will provide years of efficient and reliable service Grinding Wheel Replacement Always disconnect the hydraulic power source from the grinder before replacing the grinding wheel Tools Parts and Materials open end or spanner wrenches two sizes 5 8 in and lin grinding wheel refer to the Specifications section depressed center wheel adapter if required refer to Parts List WARNING Inspecting the tool or installing parts with the hydraulic hoses connected can result in severe personal injury or equipment damage To prevent accidental start up disconnect the hyaraulic power before beginning any inspection or installation task 1 Ifthe hydraulic hoses are connected to the tool Turn the hydraulic system control valve OFF Disconnect first the hydraulic input supply hose then the output return hose 2 Remove the old grinding wheel if any Place a 5 8 in open end wrench on the flats of the output shaft Remove the jam nut from the output shaft Unscrew the old grinding wheel
16. JUA Service Manual GR30 Hydraulic Grinder SERIOUS INJURY OR DEATH COULD RESULT FROM THE IMPROPER REPAIR OR SERVICE OF THIS TOOL REPAIRS AND OR SERVICE TO THIS TOOL Copyright 2002 The Stanley Works MUST ONLY BE DONE BY AN AUTHORIZED AND USA amp CE Version CERTIFIED DEALER 60790 8 2003 Ver 1 Table of Contents GHR3O Hydraulic Grinder SERVICING THE Certificate of Conformity 3 GR30 Hydraulic Grinder This manual contains Safety Specifications 4 Operation and Troubleshooting information Stanley Hydraulic Tools General Safety Instructions 5 recommends that servicing of hydraulic tools other than routine Saf 6 maintenance must be performed by afety Instructions an authorized and certified dealer Please read the DANGER warning Tool Decals and Tags T on the cover and the SAFETY warning Below Hydraulic Hose Requirements 8 HTMA Requirements 9 Operating Instructions 10 Service Instructions 14 Troubleshooting 18 Parts Illustration 20 Parts List 21 Accessories 22 Warranty 23 Copyright O 2003 The Stanley Works All rights reserved Under copyright law this document may not be copied in whole or in part without the prior written consent of The Stanley Works This exception does not permit copies to be made for others whether or not sold Under the law copying includes translating into another language format or medium This copyright notice must appear on any permitted copies SAFETY
17. S POSSIBLE FROM BODY AND DO NOT PERMIT CONTACT DURING USE CONTACT AT THE BURST CAN CAUSE BODILY INJECTION AND SEVERE PERSONAL INJURY HANDLE AND ROUTE HOSE CAREFULLY TO AVOID KINKING ABRASION CUTTING OR CONTACT WITH HIGH TEMPERATURE SURFACES DO NOT USE IF KINKED DO NOT USE HOSE TO PULL OR LIFT TOOLS POWER UNITS ETC SEE OTHER SIDE DE es SEE OTHER SIDE SE fo DO NOT REMOVE THIS TAG OVL SIHL SAOWSY LON OG KE Side 1 Side 2 HOSE PRESSURE RATING The rated working pressure of the hydraulic hose must be equal to or higher than the relief valve setting on the hydraulic system HTMA Requirements Hydraulic System Requirements Flow rate Tool Operating Pressure at the power supply outlet System relief valve setting at the power supply outlet Maximum back pressure at tool end of the return hose Measured at a max fluid viscosity of at min operating temperature emperature Sufficient heat rejection capacity to limit max fluid temperature to at max expected ambient temperature Min cooling capacity at a temperature difference of between ambient and fluid temps NOTE Do not operate the tool at oil temperatures above 140 F 60 C Operation at higher temperatures can cause operator discomfort at the tool Min full flow filtration Sized for flow of at least For cold temp startup and max dirt holding capacity id Petroleum based premium grade anti wear non
18. TAG TO BE REMOVED ONLYBY TOOL OPERATOR SEE OTHER SIDE 15875 D DO NOT LIFT OR CARRY TOOL BY THE HOSES DO NOT ABUSE HOSE DO NOT USE KINKED TORN OR DAMAGED HOSES MAKE SURE HYDRAULIC HOSES ARE PROPERLY D TO THE TOOL BEFORE PRESSURIZING HOSE MUST ALWAYS x SYSTEM WAYS BE CONNECTED AT T REVERSING CONNECTIONS MAY CAUSE REVERSE TOOL OPERATION WHICH CAN CAUSE SEVERE PERSONAL INJURY DO NOT CONNECT CLOSED CENTE OPEN CENTER HYDRAULIC SYSTEM CAUSE EXTREME SYSTEM HEAT PERSONAL INJURY DONOTCONNECTOPEN CENTERTOOLSTO CLO SE D CE NT ER HYDRAULIC SYSTEMS THIS MAY RESULT IN LOSS OF OTHER HYDRAULIC FUNCTIONS POWERED BY THE SAME SYSTEM AND OR SEVERE PERSONAL INJURY BYSTANDERS MAY BE INJURED AREA KEEP BYSTANDERS CLEAR WEAR HEARING EYE FOOT HAND AND HEAD PROTECTION 7 TO AVOID PERSONAL INJURY OR EQUIPMENT DAMAGE ALL TOOL REPAIR MAINTENANCE AND RVICE MUST BE PERFORMED BY AUTHORIZED AND PROPERLY TRAINED PERSONNEL IMPORTANT READ OPERATION MANUAL AND SAFETY INSTRUCTIONS FOR THIS TOOL BEFORE USING IT USE ONLY PARTS AND REPAIR PROCEDURES APPROVED BY STANLEY AND DESCRIBED IN THE OPERATION MANUAL TAG TO BE REMOVED ONLYBY TOOL OPERATOR SEE OTHER SIDE 15875 Hydraulic Hose Requirements HOSETYPES Hydraulic hose types authorized for use with Stanley Hydraulic Tools are as follows Certified non conductive Wire braided conductive Fabric braided not certified or labeled non conductive Hose list
19. al Wiper 58635 Seal Gasket 350770 O ring 351 x 393 x 072 904 Accessories Part Description Grinding Wheels for Metal 9 in dia x 5 8 11 THD Arbor for Masonry 9 in dia x 5 8 11 THD Arbor general 7 in dia x 5 8 11 THD Arbor Wheel Adapter Depressed Center 22 Warranty Stanley Hydraulic Tools hereinafter called Stanley subject to the exceptions contained below warrants new hydraulic tools for a period of one year from the date of sale to the first retail purchaser or for a period of 2 years from the shipping date from Stanley whichever period expires first to be free of defects in material and or workmanship at the time of delivery and will at its option repair or replace any tool or part of a tool or new part which is found upon examination by a Stanley authorized service outlet or by Stanley s factory in Milwaukie Oregon to be DEFECTIVE IN MATERIAL AND OR WORKMANSHIP EXCEPTIONS FROM WARRANTY NEW PARTS New parts which are obtained individually are warranted subject to the exceptions herein to be free of defects in material and or workmanship at the time of delivery and for a period of 6 months after the date of first usage Seals and diaphragms are warranted to be free of defects in material and or workmanship at the time of delivery and for a period of 6 months after the date of first usage or 2 years after the date of delivery whichever period expires first Warranty for new parts is limited to rep
20. e hydraulic system for excess contamination in the fluid and for filter condition Operating conditions may require changing from a 25 micron filter to an oversized 10 micron filter Tool Reassembly Check Valve 1 Install the check valve housing 53 12 79 54 into the main housing assembly Insert the housing with the hex plug 54 to the right when viewed from the back of the tool The central small diameter hole must align with the assembly of the tip of the idler shaft 48 2 Insert the idler shaft 48 to prevent the check valve housing from turning 3 Install hex plug 41 into each side of the main housing Main Shaft and Idler Shaft 1 Lubricate and install a new o ring 4 and back up ring 37 into the main housing Install the seal back up washer 45 and retaining ring 18 2 Lubricate seal area of main shaft 49 and install it into the main housing Install the idler gear 46 onto the idler shaft Motor Cap 1 Lubricate and install a new o ring 10 onto the motor cap 47 2 Lubricate capscrew threads 42 with an antiseize compound and install the motor cap with the capscrews and lockwashers 2 Tighten bolts to 15 17 ft lb 20 23 N m in a cross pattern A CAUTION Do not force parts together Trigger 1 Lubricate and install a new o ring 22 in the main housing and a new seal wiper 64 in the trigger mount 75 2 Secure trigger 74 to trigger mount with roll pin 23
21. ed above is the only hose authorized for use near electrical conductors Hoses and listed above are conductive and must never be near electrical conductors HOSE SAFETY TAGS To help ensure your safety the following DANGER tags are attached to all hoses purchased from Stanley Hydraulic Tools DO NOT REMOVE THESE TAGS If the information in a tag is illegible because of wear or damage replace the tag immediately A new tag may be obtained at no charge from your Stanley Distributor This Tag attached to Certified Non Conductive hose shown smaller than actual size p n 27987 DANGER DANGER 3 HAT TO USE HYDRAULIC HOSE LABELED AND CERTIFIED AS NON CONDUCTIVE WHEN USING 4 HANDLE AND ROUTE HOSE CAREFULLY TO AVOID KINKING ABRASION CUTTING OR CONTACT DRAULIC TOOLS ON OR NEAR ELECTRIC LINES MAY RESULT IN DEATH OR SERIOUS INJURY WITH HIGH TEMPERATURE SURFACES DO NOT USE IF KINKED DO NOT USE HOSE TO PULL OR FOR PROPER AND SAFE OPERATION MAKE SURE THAT YOU HAVE BEEN PROPERLY TRAINED IN LIFT TOOLS POWER UNITS ETC CORRECT PROCEDURES REQUIRED FOR WORK ON OR AROUND ELECTRIC LINES CHECK ENTIRE HOSE FOR CUTS CRACKS LEAKS ABRASIONS BULGES OR DAMAGE TO BEFORE USING HYDRAULIC HOSE LABELED AND CERTIFIED AS NON CONDUCTIVE ON OR NEAR COUPLINGS IF ANY OF THESE CONDITIONS EXIST REPLACE THE HOSE IMMEDIATELY ELECTRIC LINES WIPE THE ENTIRE LENGTH OF THE HOSE AND FITTINGS WITH A CLEAN NEVER USE TAPE OR ANY DEVICE TO ATTEMPT TO MEND THE HOSE
22. er to verify the hoses are connected correctly 1 Move the hydraulic system control valve to ON 2 Squeeze the grinder trigger momentarily If the tool operates properly move the hydraulic system control valve to OFF Operation Pre operation Checkout Careful inspection of the tool and hydraulic system before startup is important for safe reliable operation of the tool Daily Inspection The following items should be checked daily at the start and the end of each work shift WARNING Maintaining or repairing the tool with the hydraulic system before startup is important for safe reliable operation of the tool To prevent accidental startup while maintaining or servicing the tool disconnect the hydraulic power before beginning task Make sure the hydraulic system control valve is in the OFF position and the hoses are disconnected before inspecting the grinder 1 Inspect the grinding wheel and guard a Make sure the correct grinding wheel is installed for the job If not follow the instructions for the Grinding Wheel Replacement Refer to the Specifications Section for the grinding wheel requirements b Inspect the wheel for chips cracks or other damage For maximum tool performance replace the wheel if it is worn or defective c Inspect the wheel guard for cracks or other structural damage and replace if necessary d If necessary adjust the position of the wheel guard by loosening the c
23. erate the tool at oil temperatures above 140 F 60 C Operation at higher oil temperatures can cause operator discomfort and may cause damage to the tool 0 Do not operate a damaged improperly adjusted or incompletely assembled tool 0 To avoid personal injury or equipment damage all tool repair maintenance and service must only be performed by authorized and properly trained personnel 0 Do not exceed the rated limits of the tool or use the tool for applications beyond its design capacity Always keep critical tool markings such as labels and warning stickers legible Always replace parts with replacement parts recommended by Stanley Hydraulic Tools Check fastener tightness often and before each use daily 5 Safety Instructions This tool will provide safe and dependable service if operated in accordance with the instructions given in this manual Read and understand this manual and any stickers and tags attached to the tool and hoses before operation Failure to do so could result in personal injury or equipment damage L E Do not tighten or loosen the wheel nut by impact Hold the shaft with a second wrench on the flats behind the wheel and tighten securely Do not over reach Maintain proper footing and balance at all times Always connect hoses to the tool hose couplers before energizing the hydraulic power source Make sure all hose connections are tight Always hold the tool with both hands when the un
24. imum limit replace the flow control Refer to the Periodic Maintenance procedure at the beginning of the Service section for the drive shaft speed test DANGER Do not operate the grinder without the flow control installed Cross Handle 1 Remove the cross handle 24 by unscrewing it from the gear housing 68 Grinding Wheel and Guard For non CE Certified Grinders complete the following steps 2 Remove the jam nut 28 from the output shaft 66 using two open end wrenches 3 Remove the grinding wheel from the output shaft 14 Service Instructions 4 Loosen the capscrew on the wheel guard 29 and remove from the gear housing 68 For CE Certified Grinders complete the following steps 1 Remove the hub nut 40 using a spanner wrench and an open end wrench 2 Remove the grinding wheel from the output shaft 3 Remove the setscrew 8 from the drive flange 39 and remove the drive flange from the output shaft 4 Loosen the thumb screw 35 on the wheel guard 29 and remove from the gear housing 68 Gear Housing Remove the capscrews 30 and the lockwashers 31 and remove the gear housing 68 and attached parts from the main housing 73 2 Remove the seal gasket 70 and the thrust support 65 from the gear housing 3 Push the output shaft 66 and attached parts out of the gear housing 4 Press the shaft seal 27 from the gear housing 5 Spin the ball bearing
25. it is running Use a firm grip Keep all parts of your body away from the rotating wheel Keep the wheel off all surfaces when starting the grinder Always carry the tool with the wheel stopped Make sure the wheel has stopped before setting down the tool Keep the handles clean and free of fluid at all times Always inspect wheels for possible damage before installation Never transport or store the tool with the wheel mounted on the grinder Never cock jam or wedge the wheel during operation Never cause sparks in the vicinity of flammable materials Do not operate the tool with the wheel guard removed Do not start grinding until you have a clear work area and secure footing Do not allow other persons near the tool when starting or grinding Never operate the tool when you are tired or fatigued Do not use a wheel that 1s cracked or otherwise damaged Always use wheels that conform to the specifications given in the Operation section of this manual Do not reverse wheel rotation direction by changing fluid flow direction Do not operate the grinder unless the speed limiter is installed in the hose assembly at the IN port of the tool Tool Decals amp Tags A Name Tag Sticker is attached to the tool Never exceed the flow and pressure levels specified on this sticker The information listed on the name tag sticker must be legible at all times Replace this sticker if it becomes worn or damaged A replacement is available from
26. lacement of defective parts only Labor is not covered FREIGHT COSTS Freight costs to return parts to Stanley if requested by Stanley for the purpose of evaluating a warranty claim for warranty credit are covered under this policy if the claimed part or parts are approved for warranty credit Freight costs for any part or parts which are not approved for warranty credit will be the responsibility of the individual SEALS amp DIAPHRAGMS Seals and diaphragms installed in new tools are warranted to be free of defects in material and or workmanship for a period of 6 months after the date of first usage or for a period of 2 years from the shipping date from Stanley whichever period expires first CUTTING ACCESSORIES Cutting accessories such as breaker tool bits are warranted to be free of defects in material and or workmanship at the time of delivery only ITEMS PRODUCED BY OTHER MANUFACTURERS Components which are not manufactured by Stanley and are warranted by their respective manufacturers a Costs incurred to remove a Stanley manufactured component in order to service an item manufactured by other manufacturers ALTERATIONS amp MODIFICATIONS Alterations or modifications to any tool or part All obligations under this warranty shall be terminated if the new tool or part is altered or modified in any way NORMAL WEAR Any failure or performance deficiency attributable to normal wear and tear such as tool bushings retaining pins wear p
27. lamp e Check the capscrew s on the wheel guard for tightness 2 Inspect the cross handle 11 Operating Instructions a Make sure the cross handle in screwed tightly into the main body housing b Clean any oil from the cross handle to ensure a firm grip 3 Check the trigger mechanism a Make sure the trigger operates smoothly and is free to travel between the ON and OFF positions b Make sure the grinder stops when the trigger is released 4 The tool should be clean with all fittings and fasteners tight 5 Check the tool for oil leaks If leaks are observed do not use the tool have the equipment serviced before use Important Check the speed of the motor output shaft after every 100 hours of operation Hydraulic Power Source Check 1 Connect the hydraulic hoses in accordance with the instructions for Hydraulic Hose Connection Wipe all hose couplers with a clean lint free cloth before making connections Dirty couplers can contaminate the hydraulic circuit and prevent a good seal at the connection 2 Using a calibrated flowmeter and pressure guage check the hydraulic power source at the tool s input port Make sure the system provides the following flow requirements e operating flow of 7 9 gpm 26 34 Ipm e at 2000 psi 140 bar pressure The hydraulic fluid temperature should be at least 80 F 27 C for this test Refer to the Hydraulic System Requirements section for more information
28. lates bumpers retaining rings and plugs rubber bushings recoil springs etc INCIDENTAL CONSEQUENTIAL DAMAGES To the fullest extent permitted by applicable law in no event will STANLEY be liable for any incidental consequential or special damages and or expenses FREIGHT DAMAGE Damage caused by improper storage or freight handling LOSS TIME Loss of operating time to the user while the tool s is out of service IMPROPER OPERATION Any failure or performance deficiency attributable to a failure to follow the guidelines and or procedures as outlined in the tool s operation and maintenance manual MAINTENANCE Any failure or performance deficiency attributable to not maintaining the tool s in good operating condition as outlined in the Operation and Maintenance Manual HYDRAULIC PRESSURE amp FLOW HEAT TYPE OF FLUID Any failure or performance deficiency attributable to excess hydraulic pressure excess hydraulic back pressure excess hydraulic flow excessive heat or incorrect hydraulic fluid REPAIRS OR ALTERATIONS Any failure or performance deficiency attributable to repairs by anyone which in Stanley s sole judgement caused or contributed to the failure or deficiency MIS APPLICATION Any failure or performance deficiency attributable to mis application Mis application is defined as usage of products for which they were not originally intended or usage of products in such a matter which exposes them to abuse or accident with
29. ll balance before starting the grinder s plane of rotation Shutdown 1 Move the hydraulic system control valve to the OFF position 2 Disconnect the hydraulic hoses from the tool first the input supply hose then the output return hose 3 Place dust plugs on the couplers as applicable 4 Wipe the tool thoroughly with a clean dry cloth 5 Clean any foreign matter from the grinding wheel surfaces Care and Storage Clean and inspect the wheel and tool before storing Grinding Wheels All grinding wheels are breakable Exercise care in handling and storage to prevent damage Clean used wheels to remove any dirt debris or grease 2 Inspect the wheel for chips cracks or other damage For maximum tool performance replace the wheel if it is worn or defective Tool 1 Clean the tool to remove any dirt debris or grease Dry with compressed air or clean dry cloths 2 Replace any damaged or missing safety labels and tags before storing the tool Otherwise the tool might be improperly used by someone who is not familiar with the safety requirements 3 Store the tool in a clean dry safe place 13 Service Instructions Periodic Maintenance Drive Shaft Speed Check Check the speed of the motor shaft at least every 100 hours of operation The test should be performed only by a trained experienced technician 1 Maintain a record of the speed checks 2 The maximum rated speed of the GR30 i
30. ly Model GR30701SUP Only Model GR30701 GR3070101 Only Model GR30701S GR30701SUP Only Model GR30701 GR3070101 Only Model GR30701S GR30701SUP Only Model GR30701 GR30701S GR30701SUP Only Model GR30701 GR30701S GR30701SUP Only Model GR3070101 Only Model GR3070101 Only Model GR3070101 Only Model GR3070101 Only Model GR3070101 Only Model GR3070101 Only Model GR3070101 Only Includes 44 Includes 6 16 Part Of Set 24069 Part Of Set 24069 Model GR30701S GR30701SUP Only Model GR3070101 Only Model GR3070101 Only GR30 Parts List Description Notes 56758 1 Spring Cap 58458 Gear Housing Machining 58462 Relief Cartridge Plug Assy Includes 7 15 58635 Seal Gasket 58862 Warning Sticker Pressure Model GR30701 GR30701S GR30701SUP Only 58863 Warning Sticker Grinding Wheel Model GR30701 GR30701S GR30701SUP Only 59049 Main Housing Assy Includes 16 43 60677 Trigger Casting 60678 Trigger Mount Casting 60679 Spring 60681 Trigger Lock Casting 350041 Hollow Hex Plug 4 SAE 350770 O ring 351 x 393 x 072 904 Seal Kit P N 60793 00026 O ring 3 16 x 5 16 x 1 16 008 00354 O ring 1 2 x 11 16 x 3 32 112 00717 O ring 1 4 x 3 8 x 1 16 010 01262 O ring 1 3 4 x 1 7 8 x 1 16 031 NOTE 03364 O ring 441 x 558 x 072 905 07626 O ring 1 2 x 5 8 x 1 16 014 Use Part Number and 07627 O ring 5 8 x 3 4 x 1 16 016 Description when ordering 08177 Shaft Seal 13995 Back up Ring 112 49139 Se
31. out first obtaining the written consent of Stanley PERMISSION TO APPLY ANY PRODUCT FOR WHICH IT WAS NOT ORIGINALLY INTENDED CAN ONLY BE OBTAINED FROM STANLEY ENGINEERING WARRANTY REGISTRATION STANLEY ASSUMES NO LIABILITY FOR WARRANTY CLAIMS SUBMITTED FOR WHICH NO TOOLREGISTRA TION IS ON RECORD In the event a warranty claim is submitted and no tool registration is on record no warranty credit will be issued without first receiving documentation which proves the sale of the tool or the tools first date of usage The term DOCUMENTATION as used in this paragraph is defined as a bill of sale or letter of intent from the first retail customer A WARRANTY REGISTRATION FORM THAT IS NOTALSO ON RECORD WITH STANLEY WILL NOT BE ACCEPTED AS DOCUMENTATION NO ADDITIONAL WARRANTIES OR REPRESENTATIONS This limited warranty and the obligation of Stanley thereunder is in lieu of all other warranties expressed or implied including merchantability or fitness for a particular purpose except for that provided herein There is no other warranty This warranty gives the purchaser specific legal rights and other rights may be available which might vary depending upon applicable law 23 For additional Sales amp Service information contact STANLEY Stanley Hydraulic Tools Division of the Stanley Works 3810 SE Naef Road Milwaukie OR 97267 USA Tel 503 659 5660 Fax 503 652 1780 www stanley hydraulic tools com
32. ow selected 3 Reinstall hex plug Failure to install plug may introduce contaminants to the spool bore resulting in replacement of the valve spool and main Housing Operating Instructions A CAUTION To prevent damage to the retaining ring do not attempt to force the beyond the point of initial resistance Tool Operation WARNING Improper operation of this tool can cause severe personal injury death or equipment damage Read the safety guidelines and instructions in this manual before operating the tool Observe all safety precautions when operating the tool Read the Safety and the HTMA Requirements sections before operating the tool for the first time Failure to do so can result in severe eye injury or injury to other parts of the body Startup At the beginning of each shift or after a new wheel is installed run the grinder at operating speed for at least one minute before starting work Move the hydraulic system control valve to the ON position Slowly squeeze the trigger e Run the grinder at least one minute Release the trigger If excessive vibration or any other defect is detected stop the tool immediately and determine the cause Do not use the tool until the problem is corrected General Procedure 1 Grip the tool with both hands at all times during start up and operation 2 Always start the grinder with the wheel away from the work surface 3 Make sure you have fu
33. s 6500 rpm 3 The rated speed of the grinding wheel must be equal to or be greater than that of the tool to ensure the integrity of the wheel at the maximum tool speed 4 Use the hydraulic power supply normally used with the grinder when conducting the test 5 Excessive speed may be caused by excessive hydraulic fluid flow to the tool 6 Ensure the flow control is installed and functioning properly Bearing Check Periodically inspect the bearings and associated parts for proper orientation A worn or damaged bearing can lead to further part damage Periodically repack the bearing with grease Tool Disassembly Reassembly Note For orientation of parts in the following procedures refer to the parts drawing later in this manual Prior to Disassembly 1 Clean the exterior of the tool and place on a clean work surface 2 Obtain the seal kit listed on the PARTS LIST so all seals exposed during disassembly can be replaced Prior to Reassembly 1 Clean all parts with a degreasing solution 2 Blow dry all parts or use lint free cloths 3 Ensure that all seals exposed during disassembly are replaced with new parts 4 Apply clean grease or o ring lubricant to all parts during assembly Tool Disassembly Flow Control 1 The tamper proof flow control valve 56 located on the end of the hose whip 17 is preset at the factory and is not field serviceable If the drive shaft speed exceeds the 6500 rpm max
34. th the hydraulic oil temperature at least 80 F 27 C Symptom Possible Cause Solution Tool does not Hydraulic control valve OFF Turn the hydraulic system control operate valve ON Hydraulic hoses not connected Make sure the hoses are connected properly and the couplers are tight Hydraulic system not functioning Check power unit for proper flow and pressure 7 9 gpm 26 34 lpm 1000 2000 psi 70 140 bar Couplers or hoses blocked Mechanical failure Disassemble and ea for damage Tool operates in Hoses connected to wrong ports Connect input supply line to IN reverse on tool port Connect output return to OUT port Low performance Incorrect hydraulic flow Check power unit for proper flow and pressure 7 9 gpm 26 34 lpm 1000 2000 psi 70 140 bar Defective quick disconnects Check quick disconnects Fluid leak at motor Capscrews loose Contact an authorized Stanley cap face distributor to seal and tighten to recommended torque value Face o ring worn or missing Replace as required Motor cap or main body assemblies Replace as required damaged Grinding wheel should rotate CCW when viewed from the shaft end continued 18 Troubleshooting Symptom Possible Cause Solution Fluid leaks Damaged o rings Contact an authorized Stanley distributor Wrong hydraulic fluid Circuit too See HTMA Requirements section hot Hoses connected to wrong ports on Connect input supply line to IN tool
35. them difficult to connect Operating Instructions Connecting hydraulic hoses to the tool while the hydraulic power source in ON can cause personal injury or damage to the equipment Make sure the hydraulic power source is OFF before connecting or disconnecting the hydraulic hoses 1 Make sure the hydraulic system control valve is in the OFF position when coupling or uncoupling the hoses Failure to do so may result in damage to the quick couplers and cause overheating of the hydraulic system 2 Before installing the hoses wipe the fittings with a clean dry lint free cloth to remove any dirt or moisture Dirty connections can contaminate the hydraulic fluid causing rapid wear and early failure of internal parts WARNING Reversing the direction of hydraulic flow to the tool can Cause severe personal injury or damage to the equipment Make sure the input and output hoses are connected to the correct port on the tool 3 Ifhose couplers are used check the flow indicators arrows stamped on the couplers to ensure oil flows in the proper direction The female coupler on the tool is the inlet coupler 4 Itis a good practice to connect the output return hose first and disconnect it last to minimize or avoid trapped pressure within the tool a Connect the output hose to the OUT port on the tool b Connect the input hose to the IN port c Be sure all hose connections are tight Test Test the grind
36. ure by tightening the thumbscrew 35 on the guard Orient the wheel guard so it is between the operator and the working part of the wheel Grinding Wheel Refer to the Operating Instructions for Grinding Wheel Installation Cross Handle 1 Install the cross handle 24 into the gear housing 68 The cross handle may be installed on either side of the tool for right or left handed use Flow Control 1 Install flow control 56 onto hose whip 17 Refer to the Periodic Maintenance procedure at the end of the Service section for the drive shaft speed test Do not operate the grinder without the flow control installed 17 Troubleshooting This section describes how to find and resolve problems users may experience Ifa situation occurs that is not covered call your Stanley Customer Service representative for assistance WARNING Inspecting the tool or installing parts with the hydraulic hoses connected can result in severe personal injury or equipment damage To prevent accidental startup disconnect the hydraulic power before beginning any inspection or installation task If symptoms of poor performance develop the following chart can be used asa guide to correct the problem When diagnosing faults in operation of the tool always check that the hydraulic power source is supplying the correct hydraulic flow and pressure to the tool as listed in the table Use a flowmeter known to be accurate Check the flow wi
37. your local Stanley distributor AWARNING Correctly connect hoses to tool ports Do not exceed specified flow or pressure Improper handling use or y maintenance can cause a leak or burst that can result in oil injection to the body Failure to observe these precautions may result in serious personal injury 58862 Warning Pressure cE 28322 CE Decal AWARNING Always wear eye protection while grinding Use only must be tightened before use Failure to observe these precautions may result in serious personal injury undamaged reinforced resinoid wheels rated at 6500 rpm min 9 in dia by 1 4 in max Inspect wheel guard for signs of damage after any wheel failure Wheel and jam nut a 58863 Warning Grinding Wheel WHEEL SIZE RPM SPINDLE O PRESS BAR PSI O FLOW LPM GPM ene 28811 Information Plaque RAILROAD HELP DESK 1 800 549 0517 FOR CUSTOMER SERVICE OR TECHNICAL QUESTIONS 25610 Railroad Help Desk Stanley Hydraulic Tools 3810 SE Naef Rd Milwaukie Oregon 97267 26 34 Ipm 7 9 gpm 70 140 bar 1000 2000 psi 60808 GR30 Model Sticker 11207 D Circuit Type 30Lpm at 138bar D Decal BHTMA CATEGORY OC CC FOR USE ON OPEN CENTER AND CLOSED CENTER HYDRAULIC SYSTEMS SET FOR PROPER SYSTEM BEFORE USE 11354 OC CC Sticker
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