This is the perfect time of year to perform the scheduled yearly maintenance to your Hobbing and Hob Sharpening equipment.

• The machine should be cleaned well.
• Clean the coolant sump and replace the coolant with fresh coolant.
• Verify that all lubrication lines are intact and that all designated points are receiving adequate lubrication.
• Clean the index worm gear case and replace the oil.
• Check that all drip lines to the change gears are hooked up and working.
• Check the level of the machine.
• Check alignments of the overarm and bedways.
• Check tailcenter alignments.
• Check hob spindle and work spindle runouts.
• Check tooling for damage.
• Check backlash of Index Worm and Gear.
• On sharpeners check condition of index plates and index ratchets.
• Verify that all the change gears do not have excessive wear.
• Verify straightness of hob arbors and hob sharpening arbors.
• Clean Hydraulic sumps, replace filters and replace hydraulic oil.
• Check electrical cabinet for tight connections or burned components.
• Check wires to all limit switches for tight connections.
• Check backlash of Feed worm and Gear.

It is a good idea to record all of your findings on these checks. In the future, maintenance can proceed a lot quicker when there are good records of these findings. I hope these tips that we have been publishing here on our web site have proved advantageous to you. If there are any subjects you would like covered next year, please let me know. I wish each of you a very Happy Holiday season and a excellent new year.

We hope this information is of use. If you have any questions or have a particular topic you would like to see discussed here, please contact us.