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Orion AccuFocus 7395 Manual

Orion AccuFocus 7395 Manual

Electronic focuser

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Orion AccuFocus
Electronic Focuser
#7395
The AccuFocus Electronic Focuser makes achieving a sharp
focus much easier, as no vibrations are imparted to the telescope
when the focusing shaft is rotated. Focusing, especially at high
magnifications, becomes simple and more precise. In fact, you
may even see image detail you have never seen before due to
"shaky" focusing by hand!
The AccuFocus fits most Orion refractors and reflectors. It also
fits several of the focusers Orion sells separately.

Parts List

Refer to Figure 1.
Qty
Description
1
Control box
1
Motor assembly
(with shaft coupler for Crayford focuser attached)
1
Cable
1
Shaft coupler for rack-and-pinion focuser
1
Focuser bracket for rack-and-pinion focuser
1
Focuser bracket for Crayford focuser
2
Thumb screws
2
Washers
4
Phillips head screws
2
Hex keys
1
Nylon "hook and loop" adhesive strip
Installation for Crayford
Focusers
If you have an Orion Crayford focuser, follow these simple steps
to install the AccuFocus. In addition to the provided hex keys, you
will need a Phillips head screwdriver.
1. Remove the focus knob from the right-hand side of the fo-
cuser. This is done by loosening the set screw that connects
the knob to the focusing shaft (Figure 2). Use the supplied
1.5mm hex key to do this. After the set screw is loosened,
simply pull the knob off of the focusing shaft.
2. Remove the focuser's locking thumb screw. This is the chrome,
knurled thumb screw that locks the focuser drawtube in place
(see Figure 2).
3. Position the focuser horizontally, as shown in Figure 3.
4. Remove the four Phillips head screws from the focusing shaft
cover plate. Use your thumb to maintain downward pressure
on the cover plate so it does not fall off when the screws are
removed (Figure 3). If the focuser drawtube rotates, that is OK.
Providing Exceptional Consumer Optical Products Since 1975
1
Nylon
"hook
and loop"
adhesive
strip
Focuser bracket for
rack-and-pinion focuser
Washers (2)
Thumb screws (2)
Shaft coupler for rack-
and-pinion focuser
Figure 1.
The parts included with the AccuFocus.
Focus lock
thumb screw
Figure 2.
To remove the focus knob from the focusing shaft, first
loosen the set screw on the knob's stem.
Focusing shaft
cover plate
Phillips head screws
Figure 3.
When removing the Phillips head screws, use your thumb
to apply downward pressure on the focusing shaft cover plate; this
prevents the cover plate (and focusing shaft) from falling off the focuser.
Customer Support (800) 676-1343
Email: support@telescope.com
Corporate Offices (831) 763-7000
89 Hangar Way, Watsonville, CA 95076
Cable
Shaft coupler for Crayford focuser
Motor assembly
Control box
Focuser bracket for Crayford focuser
Phillips head screws (4)
Hex keys (2)
Set screw
Focus knob
IN 246 Rev D 06/11

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Summary of Contents for Orion AccuFocus 7395

  • Page 1: Parts List

    Figure 2. To remove the focus knob from the focusing shaft, first If you have an Orion Crayford focuser, follow these simple steps loosen the set screw on the knob’s stem. to install the AccuFocus. In addition to the provided hex keys, you will need a Phillips head screwdriver.
  • Page 2 Rack-and-Pinion Focusers end of shaft If your telescope has an Orion rack-and-pinion focuser, follow coupler these simple steps to install the AccuFocus. In addition to the pro- vided hex keys, you will need a Phillips head screwdriver. 1. Remove one of the focus knobs from the focuser. This is done by removing the knob’s central Phillips-head screw, and then...
  • Page 3 Smaller opening Shaft coupler for in shaft coupler rack-and-pinion focuser Pinion gear cover Focuser bracket Set screw Flat area of motor's shaft Figure 7. The end of the shaft coupler with the smaller opening goes over the motor’s shaft. Register the set screw with the flat area of the motor’s shaft, and tighten the set screw with the 2mm hex key.
  • Page 4: Specifications

    Orion rack-and-pinion focusers have two of these set screws, while Orion Crayford focusers have either one or two of these set screws. Adjusting these set screws requires a hex key.