The following cnecklist is what I use to rebuild a headstock. I will be happy to answer/clarify any questions about any of the items.
Re-reviewing my check list, I did not covered removing, cleaning and reinstalling the Quill Feed Assembly. I normally will only remove the Quill Feed Assembly if the quill spring is broken or unhooked after removing the quill housing. Let me know if it looks like I may have missed any other action/step on this updated check list. Thanks.
• Remove upper and lower metal spline hubs.
• Remove and clean belt cover. If inside is rusty, prime with Rusteoleum Rust Reformat paint.
• Turn Speed Control Handle to Fast setting.
• Remove Logo Cover.
• Remove ON-OFF switch nut and push inside headstock.
• Remove Drive Belt from motor sheave.
• Provide support, remove 5 screws from motor pan and remove from headstock.
• Remove 4 motor pan to motor screws and separate.
• Clean motor pan including removing any foreign objects (I've found nails, screws, clips, etc!!). If inside is rusty, prime with Rustoleum Rust Reformat paint.
• Visually inspect to see if motor windings are packed with sawdust and remove if necessary.
• Test on/off switch. Replace any 15 Amp switch with 20 Amp switch.
• Replace any wire with deteriorated insulation and replace ends with latest insulated connectors.
• Test the motor.
• Clean and lube floating sheave on motor.
• Check motor bearings and replace and test if needed.
• Replace motor mount screws with stainless steel bolts and lock washers.
• Remove, clean and inspect speed control handle gear. Replace if any missing or worn tooth/teeth. Remove spring behind Speed Control Dial.
• Remove, clean, inspect and lubricate speed control assembly and gears. Replace if needed.
• Clean and inspect speed control dial gears.
• Remove, clean and check control sheave and bearing.
• Lube control sheave.
• Remove and clean Eccentric Bushing.
• Remove, clean and check idler shaft and bearing. Replace if needed.
• Remove, disassemble and check bearing(s) in quill. Most quill bearings need replacement. Replace with a high quality C1 bearing(s) if needed.
• Check that the Quill Feed Assembly spring is not broken or unhooked. Remove the Quill Feed housing and replace and/or rehook spring and reinstall if needed. Clean and dry lube the Quill Feed gear teeth.
• Remove drive sleeve assembly and check both bearings. Most bearings need replacement. Replace with high quality C3 bearings if needed.
• Check torque on drive sleeve pulley setscrew and tighten if needed.
• Clean and inspect Poly-V or Gilmer belt for distortions, cracking or fraying and replace if needed.
• Clean interior of headstock casting, including removing impacted grease/dust in quill advance mechanism.
• Inspect headstock casting for cracks or breaks.
• Clean, check headstock lock mechanism & lube.
• Place Poly-V/Gilmer belt in housing and install drive sleeve assembly.
• Install Idler Shaft Assembly and idler sheave and adjust belt tension.
• Replace the motor belt with a new belt.
• Replace missing clips, screws, springs, bolts, etc.
• Replace all #8 steel screws with #10 stainless steel screws.
• Replace Speed Control Assembly and set to Fast.
• Replace spring behind and install Speed Control Dial. Set to Fast.
• Install quill and check quill return tension and set to factory specs.
• Check quill lock and feed stop functions and adjust if necessary.
• Install ON-OFF switch and motor pan.
• Connect drive belt.
• Test operation of headstock.
• Reset speed dial settings if needed so Slow = approx. 700 rpm and high = approx 5200 rpm.
• Install belt housing.
• Clean exterior of reassembled unit. Fill the quill and quill feed set screw holes with putty if needed.
Bill Mayo
Bill Mayo
http://www.billstoolz.com
psargeant wrote:I was recently given a complete headstock from my friend who lost his fingers in the accident I addressed in a previous thread. He purchased a brand new one from Shopsmith and didn't want the old one. I am considering rebuilding it for a spare or having it rebuilt by someone who is experienced at it. I would appreciate input on what might dissuade a novice from attempting such a project and if anyone knows of a reputable west coast Shopsmith headstock rebuilder in case I decide to have someone else do it.
Sarge