Adjustments
Adjustments
Test the motion smoothness of the PORTA
II
/ MINI PORTA Mount with a balanced scope by moving the telescope
tube by hand in altitude and azimuth (without using the alt-azimuth handles). Depending on the length and weight
of the telescope, you may find too much or too little resistance to the motion. This resistance may also change
with use. Directions here are to adjust this motion tension to your preference.
You can change the orientation of the altitude handle relative to the optical tube to suit your observing preference.
You may also wish to do this to avoid confusing it with the dovetail lock screw knob.
①
Peel back the rubber cover
on the mount base and
remove the 4mm (smaller)
Allen wrench
①
Put the scope in a horizon
-tal position, grasp it with
one hand, back off the
safety screw and dovetail
lock knob.
Locate the two large Allen
head screws holding the
dovetail mounting block
onto the altitude axis plate.
Grasp the dovetail block
and back out the screws
with the Allen wrench.
Reorient the altitude axis
to place the altitude handle
in a desired position as
shown in the figure right.
Match the dovetail block
with an outer pair of thre
-aded holes on the altitude
axis plate.
Attach the dovetail block
with the previously remo
-ved Allen screws. Put the
Allen wrench back to the
tool compartment on the
mount base.
Remove the dovetail block
from the mount. Note the
outer ring of threaded holes
pairs on the altitude axis
plate. These will be used
to reorient the dovetail
block.
Peel back the rubber cover
on the base of the mount
and select the 3/16” (larger)
Allen wrench.
②
③
④
⑤
⑥
②
Locate the Allen screws
that control the tension of
the altitude or azimuth
motion in the picture at
right. These screws are
recessed on the stationary
part of each axis assembly.
Adjusting the Altitude/Azimuth Slewing Motion
Adjusting the Altitude Handle Position
Ⅱ
Adjust tension by rotating the screws and testing the motion by pushing/pulling on the tube.
Cover
Altitude
Allen Screw Hole
Altitude
Allen Screw Hole
Allen Wrenches
Cover
Azimuth Allen
Screw Hole
Azimuth Allen
Screw Hole
Allen Wrenches
3/16” Wrench
Cover
Cover
Dovetail Lock knob
Safety Screw
Dovetail Block
3/16” Wrench
3/16” Wrench
Dovetail Lock knob
Safety Screw
Dovetail Block
3/16” Wrench
3/16” Wrench
3/16” Wrench
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