iOptron SkyGuider Pro User manual

HowtoRotateorReplaceaSkyGuiderProPolarScope(9/1/2017)
Thisinstructionisnotforpolarscopealignment,norfor
polar scope reticle adjustment. This is for those who
want to rotate the polar scope to align the 12 o’clock
marktotheDECbracketorientation.
Toolneeded:1.5mm,2mmand2.5mmAllenwrenches,
Phillipsscrewdriver
1. Loosentwoscrewsatthefrontofthemountand
two others on the top of a SkyGuider Pro main
boardcoverandremovetheblackcover.

2. Remove the black plastic cover. Remember how
wiresarewrapped.

3. Pullthebeltoffthewormpulley.Thenremovethe
beltfromthesmallmotorpulley.

4. Removethesmallmotorpulleyfromthemotoraxle
byreleaseasetscrewusinga1.5mmallenwrench.
Ifthesetscrewisnotaccessible,youmaygently
turntheblackencoderwheelwithyourfingerto
rotatethemotoraxle.Youneedbeverycarefulnot
to bend the black ticks!Itmayalsoneedalotof
turns.

5. Disconnectbothmotorandbatterycables.

6. RemovethemotorbyreleasetwoPhillipsscrews.

7. Remove two screws that secure the circuit board.
Gently pull the circuit board out of the mount
compartment. There is a LED connection
underneath.

8. DisconnectthepolarscopeLEDcable.


Wirewrapping

9. Removepolarscopecoverandbase.

10. Release RA Clutch Disk slightly so the polar scope
canberotated.

11. RotatingRAaxistolocatetwosetscrewsthathold
the polar scope inside RA axle. Use a 1.5mm Allen
wrenchtounthreadthesetscrewsslightly.Soitcan
berotatedinsidetheRAaxlefreelybutnotfallout.

If you are replacing the polar scope, or need to
adjust the objective lens, release the set screw a
littlemoresoyoucanpulloutthepolarscope.
DO NOTmixthemwiththepolarscopealignment
screws.
12. Now rotate and hold the front adapter, which is
used for mounting a Camera Mounting Block/DEC
MountingBracket,toyourdesired position.Rotate
the polar scope so the 12 o’clock/illumination
openingisatthetop.Tighten,butNOTovertighten
twosetscrewstosecurethepolarscope.

13. Put the battery back into the compartment.
Connect the LED cable to the board first. While
installboardbackintothecompartment,makesure
thattheLEDcableisnotjammedbetweenthe
boardandthecase.

14. Gentlypush the board downwiththe power cable
goesthroughthesmallcutontheboard,andallthe
ports are aligned. Secure the board to the mount
usingtwoscrews.


15. Slidethemotorintothemountingbracketandhold
itinplacelooselywithtwoPhillipsscrews.


16. Wrap the belt over both pulleys and slide motor
pulley onto the motor axle, very carefully! Make
surethebeltisnotjammedunderthelargeworm
pulley.

17. Tightenmotorlockingscrewswhilepushthemotor
againstwormassembly.

18. Alignthesetscrewofthesmallmotorpulleyontop
oftheflatsurfaceofthemotoraxle.

19. Tightenthesetscrew.Makesurethatbothpulleys
are aligned and not touch the motor/worm
assembly.

20. Plug in the power cable and motor cable. Refer to
step2towrapthewireproperly.Putthecoveron
withpushbuttonsinstalledproperly.
21. Now follow the Polar Scope Alignment instruction
tocheckifthepolarscopeisalignedtotheRAaxis.
Ifitisnot,followtheinstructiontoadjustit.
http://www.ioptron.us/Support/SGP_PolarScopeAlign.pdf