Shaft Repair Service Manual - Ustun
Contents
1. e Eliminate the micro movement that leads to keyway wallow and fretting e Prevent keyway wear Po e Prevent corrosion es e Ease disassembly Repair Worn Keyways Loctite 660 Quick Metal and n Loctite Fixmaster Superior Metal e Repair and restore wallowed keyways without a major overhaul e Prevent corrosion e Eliminate the micro movement that leads to fretting Shaft Repair Application Diagram en ra Secure Fixed Spline Assemblies Lubricate and Protect amp Loctite 660 Quick Metal Spline Assemblies e Eliminate micro movement Loctite Moly Paste that leads to wear e Prevent wear caused by friction e Prevent corrosion LE ons e Prevent corrosion e Withstands extreme pressure and heavy loads roo Sleeving a Worn Shaft ge A ZOTE Loctite 609 Retaining J Compound e For badly worn shafts e High load applications Additional Loctite Products Loctite ODC Free Cleaner amp Degreaser e Use with all repair methods for cleaning Secure Cylindrical amp Taper Joints Loctite Retaining Compounds parts prior to adhesive bonding e Recover worn or incorrectly machined components Loctite 7649 Primer N e Prevent corrosion e Use in combination with Loctite e Create 100 contact load and stress Retaining Compounds distributed evenly over the joint e Increase cure speed on passive e High and moderate strength products Stace such T re a c2. Introduction This guide has been designed to provide quick and easy assistance to the professionals responsible for the maintenance and repair of shaft assemblies With the help of this guide you can e Easily select the right way to repair a variety of shaft assemblies e Pinpoint the most suitable repair method for worn parts or prevent wear proactively e Determine the best Loctite product for your particular maintenance or repair problem Most shaft assemblies are incorporated into systems carrying a significant capital equipment value It is therefore vital to maximize their useful lives and ensure reliable performance Proactive maintenance can reduce downtime enhance reliability and dramatically cut costs There is a comprehensive range of Loctite products to e Repair and prevent common failures to extend end product life and minimize downtime e Reclaim worn or damaged assemblies to avoid scrap and replacement costs e Assist in assembly installation and disassembly e Help ensure reliability and smooth running by restoring performance to as new condition Profit from reliability At Henkel we understand the problems you face in ensuring reliability safety and durability We provide a wide range of industry leading products for cost efficient easy and effective shaft maintenance and repair When equipment fails the greatest concern is getting it running again Loctite products not only provide reliable on site r
3. Loctite ODC Free Cleaner amp Degreaser 2 Apply Loctite Fixmaster Superior Metal into the keyway of both the shaft and collar Fill all the available space Allow to cure 3 If a rounded surface is required machine the repair to the original dimensions of the shaft and bore of the collar 4 Machine a new keyway in the shaft and collar opposite the Original keyway 5 Re clean parts with Loctite ODC Free Cleaner amp Degreaser 6 Apply several drops of Loctite 243 Threadlocker directly into the new keyway and insert key 7 Wipe off any excess adhesive 8 Assemble the components 9 Allow to cure Restores assembly so it is ready for service without a major overhaul e Secures the key in the keyway e Eliminates micro movements that lead to fretting Prevents corrosion Ores N Reliably securing fixed spline assemblies CAUSE e Qut of tolerance machining of components leads to micro movement and wear e Alternating loads e Worst case combined loading e Damage during assembly e Incorrect assembly due to contamination of the parts e Incorrectly specified spline drive producing overload during operations Secure fixed spline assembly with Loctite 660 Quick Metal STEPS 1 Create a chamfer on the leading edges of the socket if there isn t one using a file or grinding wheel 2 Abrasive blast the surface of the splines 3 Clean parts with
4. Loctite ODC Free Cleaner amp Degreaser 4 Apply Loctite 660 Quick Metal to the shaft Do not apply product into the socket 5 Immediately push the spline toothed shaft into the socket and remove excess adhesive 6 Allow the adhesive to cure before returning to service e Restores assembly so it is ready for service without a major overhaul e Reduces scrap and costs by salvaging components e Reduces downtime Spline Assemblies CHALLENGE Lubricate and protect sliding spline assemblies from unnecessary fretting and wear CAUSE e Wear will occur where there is friction and movement in the spline coupling e Contamination between shaft and socket Emm Apply Loctite Moly Paste to splines during assembly to reduce friction STEPS 1 Clean mating surfaces before application with Loctite ODC Free Cleaner amp Degreaser 2 Coat mating surfaces with Loctite Moly Paste 3 Assemble parts e Withstands extreme pressure and heavy loads e Prevents wear caused by friction for long lasting assemblies e Prevents corrosion Application Repairing badly worn shaft Sleeving Loctite Solution Loctite Fixmaster Superior Metal Loctite 609 Retaining Compound Benefits Non rusting ferro silicone filled epoxy Extremely high compressive strength and wear resistance Sets in 20 minutes General purpose low viscosity adhesive for
5. movement between the parts Oil resistant removable strength Non rusting ferro silicone filled epoxy Extremely high compressive strength and wear resistance Sets in 20 minutes 50 ml 24078 19 g stick 37087 50 ml 66040 50 ml 60931 50 ml 24078 1 Ib Kit 97473 4 kg Kit 40900 10 11 Securing fixed spline assemblies Protect sliding spline assemblies from fretting and wear Loctite 660 Quick Metal Retaining Compound Loctite Moly Paste CLEANER AND PRIMER A creamy non running gel ideal for filling surface imperfections and worn areas Ideal for gaps up to 0 020 Metal free general purpose lubricant Lubricates and protects especially well during break in and under high loads up to 750 F 400 C 50 ml 66040 8 oz brush 51048 top can 1 Ib brush 51049 top can 12 13 Cleaning and degreasing prior to bonding Priming components Loctite ODC Free Cleaner amp Degreaser Loctite 7649 Primer N Non aqueous hydrocarbon based solvent for cleaning and degreasing surfaces to be bonded with adhesives as well as any general purpose industrial cleaning Use with Loctite Retaining and Threadlocking products to speed the cure on active metals or to ensure cure on inactive metals stainless steel aluminum plated parts etc 15 oz net wt 29355 aerosol 1 75 fl oz bottle 38402 25 g net wt 21347 aerosol can At Henkel Corporation we invent mor
6. an carry high loads aluminium and plated metals e Eliminate fretting e Prevent bearing spinout Repairing a badly worn shaft CAUSE e Qut of tolerance machining results in loose components this leads to micro movement and wear e Load produces axial forces that are higher than original calculations e Insufficient interference or inappropriate loads lead to spun bearings e Use of components in aggressive environments and at elevated operating temperatures Rebuilding the damaged shaft with Loctite Fixmaster Superior Metal STEPS 1 Using a lathe undercut the shaft in the worn area as follows Shaft diameter 13 mm 25 mm desired undercut 1 5 mm Shaft diameter 25 mm 75 mm desired undercut 3 mm 2 Dovetail the ends of the worn area to anchor the application into place 3 Finish undercutting by machining a rough cut surface e g RZ 100 pm The larger the shaft diameter the coarser the cut fa 4 Clean parts with Loctite ODC Free Cleaner amp Degreaser 5 Apply a very thin layer of Loctite Fixmaster Superior Metal and force it into the rough surface finish Turn the shaft at a very low speed and continue to apply adhesive using a putty knife or similar Build the surface above the final desired level 6 Allow the adhesive to cure for 12 hours at room temperature If necessary apply dry heat to the repair area to speed the cure 7 Machine the repair to the required dimensions 8 Cut t
7. aps up to 0 020 Low viscosity adhesive for bonding cylindrical assemblies Ideal for gap distances up to 0 005 diametral clearance Fixtures in 10 minutes A retaining compound tolerant of oil and other contamination Seals and secures gaps up to 0 005 diametral clearance Fixtures in 10 minutes 1 Ib Kit 4 kg Kit 50 ml 50 ml 19 g stick 50 ml 50 ml 50 ml 50 ml 50 ml 50 ml 97473 40900 60931 21441 39148 60931 62040 68035 66040 60931 21441 Application Loctite Solution KEYED ASSEMBLIES Loctite 243 Prevent Threadlocker keyway wear Loctite QuickStix 248 Medium Strength Threadlocker Loctite 660 Quick Metal Retaining Compound Loctite 609 Repair Retaining Compound worn keyways Loctite 243 Threadlocker Loctite Fixmaster Superior Metal SPLINE ASSEMBLIES Benefits Anaerobic adhesive fills airspace eliminating any micro movement between the parts Oil resistant removable strength Convenient semisolid anaerobic adhesive fills airspace eliminating any micro movement between the parts Removable strength A creamy non running gel ideal for filling surface imperfections and worn areas Ideal for gaps up to 0 020 Low viscosity adhesive for bonding cylindrical assemblies Ideal for gap distances up to 0 005 diametral clearance Fixtures in 10 minutes Anaerobic adhesive fills airspace eliminating any micro
8. bined loading results in micro movement wear and loose parts e Over time wear can cause keys to loosen leading to damage of the keyway e Qut of tolerance machining SOLUTION 1 Loctite 660 Quick Metal Retaining Compound is a very thick product allowing it to fill large gaps STEPS 1 Clean shaft keyway and key stock with Loctite ODC Free Cleaner amp Degreaser 2 Apply Loctite 660 Quick Metal Retaining Compound into the worn keyway 3 Insert the key into the keyway wipe off excess and allow to cure 4 Assemble component as usual 0 Repairing badly worn keyed assemblies by resizing the existing keyway STEPS 1 Resize the worn keyway Select proper keystock to fit the new keyway Machine a step in the new key to fit the female component Clean parts with Loctite ODC Free Cleaner amp Degreaser Apply Loctite 609 retaining compound to the keyway of the shaft where there is a high power application apply Loctite 609 onto the whole shaft at the engagement area oo Aa WwW N 6 Assemble the key into the shaft 7 Wipe off excess adhesive 8 Allow product to cure Keyed Assemblies SOLUTION 3 Alternate solution for badly worn keyway fill in worn keyway and cut new keyway lf parts are very badly worn it may be necessary to cut new keyways In this situation the old keyways can be filled as described below STEPS 1 Clean parts with
9. bonding cylindrical assemblies Ideal for gap distances up to 0 005 diametral clearance Fixtures in 10 minutes SECURING CYLINDRICAL amp TAPER JOINTS Press Fit Mounting components to shaft Slip Fit Mounting components to shaft Mount components requiring medium to large gap fill Prevent bearing spinout corrosion and component damage Loctite 603 Retaining Compound Loctite QuickStix 668 Retaining Compound Loctite 609 Retaining Compound Loctite 620 Retaining Compound Loctite 680 Retaining Compound Loctite 660 Quick Metal Retaining Compound Loctite 609 Retaining Compound Loctite 603 Retaining Compound A retaining compound tolerant of oil and other contamination Seals and secures gaps up to 0 005 diametral clearance Fixtures in 10 minutes Convenient semisolid formula Withstands temperatures to 400 F 204 C Ideal for gaps up to 0 005 in diameter Low viscosity adhesive for bonding cylindrical assemblies ideal for gap distances up to 0 005 diametral clearance Fixtures in 10 minutes High temperature resistance up to 450 F High viscosity securing cylindrical assemblies up to 0 015 diametral clearance A high strength retaining compound capable of filling diametral gaps up to 0 015 Allows for more relaxed machining tolerances A creamy non running gel ideal for filling surface imperfections and worn areas Ideal for g
10. e assembly distributing load evenly e Prevent downtime and scrap costs e Protect new components against wear abrasion and chemical attack CHALLENGE Reliably secure components to shaft CAUSE e Qut of tolerance machining results in loose components this leads to micro movement and wear e Load produces axial forces that are higher than original calculations e Insufficient interference or inappropriate loads lead to spun bearings i e Use of components in aggressive environments and at elevated operating temperatures Mount components to shaft using Loctite Retaining Compounds STEPS Select the proper repair adhesive according to the extent of component wear or gap fill required Loctite Cure Time Type or mt Retaining Compound penei enepar an Setup Full Strength Loctite 603 Oil Tolerant up to 0 005 0 1 mm 10 min 24 hrs Press Fit Loctite QuickStix 668 up to 0 005 0 1 mm 30 min 24 hrs Loctite 609 General Purpose up to 0 005 0 1 mm 10 min 24 hrs TER Loctite 620 High Temp up to 0 015 0 4 mm 30 min 24 hrs ip Fi Loctite 680 High Strength up to 0 015 0 4 mm 10 min 24 hrs Medium to Large Gaps Loctite 660 Quick Metal Restore Worn Parts up to 0 020 0 5 mm 20 min 24 hrs 1 Clean parts with Loctite ODC Free Cleaner amp Degreaser 2 Roughen the shaft mounted component and shaft with abrasive paper at the bonding area RESULTS e Adhesive fills airs
11. e than just quality Loctite brand products we provide solutions to industries biggest challenges Whether looking to reduce costs increase the reliability of equipment or assist in product application Henkel is dedicated to earning and keeping the trust of our customers Here are just a few Loctite tools and services you may be interested in Loctite Maintenance Workshop Two hours of on site training reviewing common maintenance challenges and the appropriate Loctite product solution customized to the needs of your plant Visit our website to learn more download Literature LT 3690 or contact your local Loctite Specialist to schedule a workshop Loctite Industrial Pump Rebuild and Maintenance Guide This comprehensive guide details the assembly and repair steps that can be taken to increase efficiency and reduce or even eliminate common failures with centrifugal pumps To get a copy of this guide visit our website or call us and reference LT 4047 Loctite Industrial Gearbox Service Manual This guide is designed to provide quick and easy assistance to professionals who service industrial gearboxes and look for reliability longevity and cost reduction To get a copy of this guide visit our website or call us and reference LT 4872 Henkel Your worldwide partner Canada a Henkel Corporation Henkel Canada Corporation Engineering Adhesives Engineering Adhesives 1001 Trout Bro
12. epair capability but emergency repair and service solutions that last or even extend the lifetime of your equipment Our focus on increasing reliability through the protection of our customers equipment facilities and people delivers maximum value to the maintenance process Table of Contents Introduction i Repainng a badly wonashalt e aa oe cae ee ees eee ee eee 4 Securing Cylindrical amp Taper Joints Reliably secure components to shaft 0 0 0 eee 6 Preventing bearing spinout and component damage 02 00 eee eee eee T aN TAM 2 aw ala a y Te Po i we w g Fakaj AAN T Preventing kKeyway Weak foe oneen te art Ae tea nares a care Na a pale ae nee ele 8 Repairing worn keyed assemblies 0000 cece eee eee eens 9 Reliably securing fixed spline assemblies 0 000 cee eee 12 Lubricate and protect sliding spline assemblies 00000 13 Additional Services To speak with someone in our technical service department or to contact your local Loctite product specialist call 1 800 LOCTITE 562 8483 or 1 800 263 5043 in Canada Rebuild Worn Shafts TES Loctite Fixmaster Superior Metal e Rebuild worn surfaces with metal filled epoxy e Machine the shaft after repair to the original diameter e Return to service quickly without major overhaul Prevent Keyway Wear Loctite 243 and QuickStix 248 Threadlockers
13. he material with the component dry using carbide or high speed steel If polishing is required use an abrasive paper Note When mounting components to the rebuilt surface with Loctite Retaining Compounds Loctite 7649 Primer N is required e Prevent downtime and scrap costs by reparing worn shaft e Epoxy solution uses standard machine tools no special equipment or training required Sleeving Reliably with Loctite Retaining Compounds STEPS 1 2 10 Determine appropriate size of sleeve Create a transition fit joint between shaft and sleeve for tapered joints create a press fit Ensure the outside diameter is the specified shaft diameter for a taper joint the outside diameter should be the nominal diameter of the original cone Roughen the surface Clean parts with Loctite ODC Free Cleaner amp Degreaser Apply a bead of Loctite 609 Retaining Compound to the circumference of the shaft at the leading edge of the component to be inserted Apply the adhesive to both parts of the assembly In the case of a shrink fit using thermal energy for assembling apply the adhesive onto the cold part coating the complete engagement area Assemble sleeve in some cases heat should be applied to the fit Wipe off excess adhesive Allow adhesive to cure Follow the same procedure for press fit joints between the sleeve and bearing V RESULTS e Repair worn shaft e Unitiz
14. nce of the shaft at the leading area of the component NO e Reduces shaft and or bearing housing damaged Fills airspace sealing from leaks rust and corrosion Eliminates micro movement between bearing and shaft that could lead to fretting damage Provides 100 contact distributing loads and stress evenly oO Press the bearing onto the shaft using normal techniques Bas Wipe off excess material CHALLENGE Preventing keyway wear CAUSE In a new assembly the fit between the key and keyway is usually tight however over time wear can cause this fit to loosen leading to damage to the keyway SOLUTION Loctite Medium Strength Threadlocker is appropriate for the gap fill and will provide the needed strength while allowing easy removal for servicing STEPS 1 2 O Aa Clean the keyway and key with Loctite ODC Free Cleaner amp Degreaser Apply several drops of Loctite 243 Medium Strength Threadlocker into the keyway or apply Loctite QuickStix 248 to the key Insert the key into the keyway Wipe off excess adhesive Allow to cure before assembling the shaft mounted component Eliminates micro movements that can lead to fretting Prevents keyway wear Prevents corrosion Eases disassembly Keyed Assemblies CHALLENGE Repairing worn keyed assemblies CAUSE e Alternating loads and com
15. ok Crossing 2225 Meadowpine Blvd Rocky Hill CT 06067 Mississauga Ontario LN 7P2 Tel 1 800 562 8483 Tel 1 800 263 5043 within Canada Tel 860 571 5100 Tel 905 814 6511 Fax 860 571 5465 Fax 905 814 5391 Henkel Corporation Engineering Adhesives 1001 Trout Brook Crossing Rocky Hill CT 06067 U S A www henkelna com mro and designate trademarks except where noted below of Henkel Corporation or its affiliates registered in the U S and elsewhere Henkel Corporation 2008 www loctite com All rights reserved 5544 LT 5338 12 08
16. pace sealing from leaks rust and corrosion e Eliminates micro movement between component and shaft e Provides 100 contact distributing loads and stress evenly 3 Re clean parts 4 Apply a bead of the repair adhesive to the circumference of the shaft at the leading edge of the component Apply the adhesive to both parts of the assembly In the case of a shrink fit using thermal energy for assembling apply the adhesive onto the cold part coating the complete engagement area 5 Assemble shaft mounted component in some cases heat should be applied to the transition fit 6 Wipe off excess 7 Allow to cure Securing Cylindrical amp Taper Joints CHALLENGE Prevent bearing spinout corrosion and component damage CAUSE e Bearings are prone to spinning either on their shafts or within their housings This results in damage to these parts regardless of whether or not they are a press shrink or slip fit e The airspace that exists between a bearing and shaft is an area where rust can form and cause damage to the parts and can also be a leak path for fluids e Airspace allows micro movement leading to fretting and corrosion OEM Retain joints using Loctite 609 General Purpose or Loctite 603 High Strength Retaining Compounds STEPS 1 Clean parts with Loctite ODC Free Cleaner amp Degreaser Apply a bead of Loctite Retaining Compound to the circumfere
Download Pdf Manuals
Related Search