Applicable to all of WO R&P focusers with modular focusing mechanism, including:
- WIFD R&P Focuser (recommended)
- 2” R&P Focuser
- 3.3” R&P Focuser
- 3.7” R&P Focuser
- Turn the telescope over and remove the Tension screw.
- Remove the top cover screw near the temperature gauge with 2mm Allen key.
Starting from June 2025, new telescope models no longer include the top cover screw. (Skip Step 2)
- Release (don’t remove) two inner knob screws.
- Remove the temperature gauge knob.
- Find the flat side (D-cut profile) on the shaft and turn it to face the hole.
- Put the timing pulley (large) on the shaft and lock the two inner screws (2mm Hex wrench)
- Put the timing pulley (small) on the shaft of EAF and lock the two inner screws (2mm Hex wrench)
On Step 6 & 7:
Please make sure one of the screws is lock on the flat side (D-cut profile)
- Slide the mounting bracket over the focuser, position it vertically, and tighten the screw. (2.5mm Hex wrench)
- Put on the EAF, tilt it downward, and loop the belt over both pulleys.
- Lift the EAF upward to tension the belt, and simultaneously tighten the two M4 bracket screws (3mm Hex wrench)
Notes for New EAF Model [ EAFN / EAF Pro (2025) ]
- The new EAF now has a 4 mm motor shaft, different from the older 5 mm version, but the installation steps remain the same.
- On some new EAF units, the stainless plate surface is flat, which may leave a small gap. If there’s any looseness, insert the included 0.2 mm aluminum shim between the bracket and EAF.
