5.Install Counterweight (CW) Shaft: (1) Remove CW Shaft Locking Screw from the CW Mounting Nose. (2) Insert CW shaft into the CW Mounting Nose as indicated in 2nd photo below. (3) lock it using CW Shaft Locking Screw from the other side of the CW Mounting Nose. Tighten the Front CW Positioning Screw which is located in front of the CW Mounting Nose.
CW Mounting Nose
(1)
CW Shaft Locking Screw
Front CW Position Screw
(3)
CW Shaft inserts into 
CW mounting nose.
(2)
If the latitude of the observation location is lower than 10º, thread in the Rear CW Position Screw (a hex head set screw) before tightening the Front CW Positioning Screw to avoid CW hit tripod legs. Then tighten the Front CW Positioning Screw.
Rear CW Position Screw
6.Install Counterweight: Mount the CW onto CW shaft. Tighten the CW Locking Screw to hold the CW in place. Tighten the CW Safety Screw. ZEQ25 comes
with a 10.4 lbs (4.7kg) counterweight. It should be able to balance a payload of about 13 lbs (6kg). An optional CW or Extension bar is available for heavier payload.
7.Attach and Balance an OTA on the Mount: After attaching an OTA and accessories to the mount, the ZEQ25 mount must be balanced in both R.A. and DEC to ensure minimum stress on the mount (such as gears and motors inside).
CAUTION: The telescope may swing freely when the R.A. or DEC Gear Switch is released. Always hold on to the OTA before you release the gear switch to prevent it from swinging. It can cause personal injury or damage to the equipment.
Release Gear Switch Locking Screw by turning it 2 turns counterclockwise. Turn Gear Switch Knob 90 degree to OPEN position to disengage the worm from the worm wheel.
Gear Switch Locking Screw
Gear Switch
LOCK | OPEN |
|
Rotate the DEC axis to horizontal position. Adjust the CW position to balance the mount in R.A. axis and move the OTA position to balance the mount along DEC axis.
R.A. balance
DEC balance
3
iOptron Corp. 6E Gill Street Woburn, MA 01801 USA (781)
