iOptron GEM28 Adjustment Download Page 9 | Manualshive

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For iOptron Internal Use Only

9

32. Check the play with worm/ring gear engaged

while rotating the ring gear.

33. Follow steps 10-12 to put the motor, control

board and cover back.

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Summary of Contents for GEM28

Page 1: ...nt 1 The DEC unit is connected to the RA axle via 4 socket screws Two is on side the DC unit One is on bottom of the DEC unit The fourth one is inside the mount Remove front polar scope cover and look...

Page 2: ...and control board to access the top screw 6 Remove mount DEC motor cover 7 Carefully unplug the motor cable from the DEC control board 8 Unscrew the screw post and two screws that hold the plastic ba...

Page 3: ...xam the worm assembly movement when hold and rotating the ring gear 1 If the whole worm assembly moves up and springs back down this is normal for a spring loaded worm gear system 2 If the whole worm...

Page 4: ...king screws Make sure they are tightened 7 Release hinge bearing end cap locking screw half turn 8 Turn the brass end cap clockwise all the way in using a pair of strong tweezers or a screw driver Rot...

Page 5: ...lateral movement is cause by a loose worm bearing end cap It is not accessible without remove the worm assembly from the mount Follow Step 2 to Step 4 to remove motor cover cable control board and mo...

Page 6: ...ashers as well Pull the worm assembly from top of the ring gear compartment 18 Tap the bearing out of the housing if needed The following is a set of a bearing a washer and a hinge pin The following s...

Page 7: ...n the shaft and tighten the set screw onto it Make sure that the worm shaft end if aligned flash to the pulley surface 23 Before install the worm assembly insert one hinge bearing into the bearing hou...

Page 8: ...9 Now install the gear switch back 30 Insert the spring into the gear switch hole Put the ball bearing on top of it Insert gear switch into the worm assembly while align the ball bearing to the slot P...

Page 9: ...For iOptron Internal Use Only 9 32 Check the play with worm ring gear engaged while rotating the ring gear 33 Follow steps 10 12 to put the motor control board and cover back...

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