{"id":1574,"date":"2021-03-24T18:12:48","date_gmt":"2021-03-24T18:12:48","guid":{"rendered":"http:\/\/www.astro-baby.com\/astrobaby\/?page_id=1574"},"modified":"2021-03-26T18:41:14","modified_gmt":"2021-03-26T18:41:14","slug":"supertune-the-eq6-addendum","status":"publish","type":"page","link":"https:\/\/www.astro-baby.com\/astrobaby\/help\/rebuilding-the-skywatcher-eq6orion-atlas-mount\/supertune-the-eq6-addendum\/","title":{"rendered":"Supertune the EQ6 -Addendum"},"content":{"rendered":"

\"EQ6<\/p>\n\r\n\r\n\r\n
Supertuning the Synta \/ Skywatcher EQ6 \/ Orion Atlas<\/strong><\/span><\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\n

This procedure is an addendum to the main strip down guide located\u00a0HERE<\/b> and will guide you towards Super-tuning the mount to get better results. This guide needs to be read in conjunction with the main strip down guide and shows how to get better tuning with the RA and DEC worm gears by using additional shims to set the worm gear to worm roller more accurately.<\/span><\/p>\n

This guide also includes a shim calculator so you can automatically calculate the shim sizes required when rebuilding.<\/span><\/p>\n

Notes:<\/span><\/b><\/span>
\nI am going to break with convention for super-tuning in this guide and NOT<\/b>\u00a0replace the main bearings. Much discussion about these has taken place in various guides and forums but the fact is the main bearings are perfectly adequately engineered for a mount like the EQ6. The only bearings I changed in this guide were worm roller end shaft bearings because these are generally pretty poor quality from the factory. The other bearings are more than adequate as the mount does not need high speed bearings and ceramic bearings are prone to potential problems in cold weather.<\/span><\/p>\n

The super-tuning element is concerned with the setting of more accurate worm gear alignment. Its assumed if you are carrying out this process you will have carried out all steps for improving the mount in the strip down and rebuild guide with regards to cleaning and de-burring components and replacing the factory lubricant with a lithium type grease.<\/span><\/p>\n

The EQ6 mount used for this guide was a new model and was probably manufactured around 2009. The overall machining was far better than on the earlier mount used for the strip down guide and engineering tolerances were significantly better. The mount showed a better quality lubrication although it was almost dry in places and a generally ‘cleaner’ level of engineering with none of the swarf and drek found in the earlier generation Synta mounts I have disassembled.<\/span><\/p>\n

Replacement parts required for this guide:<\/b><\/span>
\nThe only parts acquired for this guide were the worm roller end shaft bearings and some additional shims. Details of these are as follows along with a complete bearing list if you find any of your bearings have been damaged or are unfit for use.<\/span><\/p>\n

Shims<\/i><\/b><\/span>
\nPack of Delrin shims in assorted sizes. These can be acquired from;<\/span>
\n<\/span><\/p>\n

Bearings<\/i><\/b><\/span>
\nThese are fairly standard bearings and can be acquired almost anywhere. Mine were acquired from ebay relatively cheaply. A complete list is supplied for your information although for tuning only the worm roller end shaft bearings are worth replacing in my opinion. There are very many manufacturers of bearings, SKF bearings are relatively common in the market place and these were used. Other manufacturers part codes may differ slightly – if in doubt check with your supplier.<\/span><\/p>\n\n\n\n\n\n\n\n\n
\u00a0QTY<\/th>\nApplication<\/strong><\/span><\/th>\nManufacturer<\/strong><\/span><\/th>\nSKF Product Code<\/strong><\/span><\/th>\n\u00a0Replaced in this Guide<\/strong><\/th>\n<\/tr>\n<\/thead>\n
4<\/td>\nWorm Roller
\nEnd Shaft Bearings\u00a0<\/span><\/a><\/span><\/td>\n		SKF\u00a0<\/span><\/td>\n608 2RSH\u00a0<\/span><\/td>\nYES\u00a0<\/span><\/td>\n<\/tr>\n
6<\/td>\nMain Shaft
\nBearings (3 per axis)\u00a0<\/span><\/a><\/span><\/td>\n		SKF\u00a0<\/span><\/td>\n6008 2RSH (Equivalent 6008 2RS1)<\/span><\/td>\nNO\u00a0<\/span><\/td>\n<\/tr>\n
1<\/td>\nDEC Shaft
\nTaper Bearing\u00a0<\/span><\/a><\/span><\/td>\n		SKF\u00a0<\/span><\/td>\n30206 J2\/Q\u00a0<\/span><\/td>\nNO\u00a0<\/span><\/td>\n<\/tr>\n
1<\/td>\nRA Shaft
\nTaper Bearing\u00a0<\/span><\/a><\/span><\/td>\n		SKF\u00a0<\/span><\/td>\n32208 J2\/Q\u00a0<\/span><\/td>\nNO\u00a0<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Tools required for this guide:<\/b><\/span>
\nIn addition to the tools required to do the mount strip down for supertuning you will also require the use of a digital caliper<\/a>. These can be acquired readily at reasonable prices from sources such as Amazon<\/a> from around \u00a310 upwards.<\/span><\/p>\n\r\n\r\n\r\n
Shim Setting\/Calculations<\/strong><\/span><\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\n