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Adjusting the Altitude Thrust Bearings
| 6 – Synta HEQ5 -Adjusting the Altitude Motion |
My own HEQ5 suffered from excessive play in the altitude bearings. Even with the altitude bolts are done up tight the mount could still rock slightly to and fro.
Here’s how to eliminate play the altitude bearings of the HEQ5/Sirius mount.
| Setting the altitude thrust bearings |
Remove Latitude ScaleRemove the latitude scale from the mount. This can be removed using a sharp craft knife to prise it away from the mount, Mine came away quite easily but they can be very tough to remove.
WARNING - you can easily damage this beyond repair so exercise judgment and due caution.
WARNING - you can easily damage this beyond repair so exercise judgment and due caution.
Adjust Allen Headed ScrewsBehind the RA scale you will see a large bolt which holds the mount to the altitude unit. Around the bolt are three Allen headed set screws. Turn each of these a 1/4 turn until the play in the altitude goes away.
Replace RA ScaleReplace the RA scale using a few small drops of Superglue. You may want to use a spirit level to ensure the scale is as accurate as possible.