Meade SN-10 AT Instruction Manual download pdf (Page 2)

Assembling The Mount & Tripod ...

(con’t)

(the one with the star) is roughly pointing at your target

object. Remove the Polar Scope Cover (#18), loosen the

DEC Lock (#17) and turn the cradle base so it is pointing

east-west in relation to the north leg. Lock the Dec Lock.

Looking through the Polar Scope eyepiece, use the Azi-

muth Adjustment Knobs (#27) and the Latitude Ad-

justment handle (#26) to align the cross-hair on your tar-

get object.

Loosen the RA Lock (#33) and rotate the mount 90 de-

grees to your right so that the Counterweight Bar (#22)

is now pointing to the left of the mount - horizontal to the

ground. If the cross hair moved off of your target, you will

need to take a small allen wrench and adjust the three

small allen screws on the Polar Scope ring up against the

setting circles. Make small adjustments to remove HALF

of the error.

Now rotate the head 180 degrees to the left so that the

Counterweight bar is now pointing to your right and hori-

zontal to the ground. Again, adjust the screws to remove

HALF of the error.

Keep repeating the procedure - moving the head back and

forth and making fine adjustments - each time removing

HALF the error - until the cross hairs stay centered on

your target. Now your Polar Scope is aligned to your mount.

Tip: Replacing the tiny allen set

screws with longer, larger headed

screws of the same thread will make

adjustments a lot easier. Available at

most hardware stores. Alternate tight-

ening and loosening screws. Do not

overtighten.

Polar Home Position ...

Throughout the manual, you will be instructed to place

the mount in Polar Home position (Fig. 16a & 16b on

Page 17). This is the basic starting point for all setup and

GoTo alignment procedures. Here is a quick and easy way

to assure good alignments each and every time. Remove

the OTA / Rings assembly and counterweights before pro-

ceeding.

Tip: NEVER remove the counterweights while the OTA is

mounted. Always remove the OTA first when disassembling

your scope.

Your scope may have come with two pairs of small black

and white arrows stuck to your mount on the RA and DEC

axis pivot seams. They may or may not be accurately placed

- this procedure will insure that they are correct. You can

do this inside in the comfort of your home.

Remove the LXD55 head from the tripod. Adjust the legs

so that they are extended about halfway and the tripod is

level. The easiest way is to place a small torpedo level

across the head of the tripod. Adjust the legs until the

bubble indicates level. Rotate the level about the head 90

degrees and check again. Adjust the legs as necessary.

Keep doing this until the head is level in all directions.

Lock the legs in place.

Tip: A small Torpedo Level is

available from sears for under

$5.00. It’s the perfect size of 9”

x 1-5/8”. It has a magnetic strip on one edge and three bubble

vials. Once you have the tripod level, you can glue a small

round Bullet Level on the top of the

East or West or both legs. Use GE Sili-

cone Type II household cement - avail-

able at Home Depot and Lowe’s. This

will make set up a lot easier from now

on.

Reattach the LXD55 head / motor assembly to the tripod -

making sure it is tightened down snug. Do not attach the

ring assembly or OTA at this time. The counterweight bar

should be approximately centered over the North leg (the

one with the star). Loosen both the RA Lock (#33) and

DEC Lock (#17). Adjust the Latitude Adjustment

handles (#26) until the Counterweight Shaft (#22) is ex-

tending between the outer two

leg tubes of the North leg.

Now use the Azimuth Con-

trol Knobs (#27) to center the

shaft between the two outer

tubes. Pace an alignment ar-

row on the South side of the

mount below the Latitude Ad-

justment handle.

Tip: You can print out your own alignment arrows by down-

loading the file: Pointers.pdf available at the Yahoo Newsgroup:

LXD55telescopes (http://groups.yahoo.com/group/

LXD55telescopes/files/Pointers.PDF). This group always has

a lively discussion covering all issues - both pro’s and con’s -

along with many useful suggestions for getting the most en-

joyment out of your new telescope. If you have a question,

someone in the group will have an answer.

Holding the level against the Counterweight Shaft (#22),

adjust the Latitude Adjustment Handles (#26) until the

bar is vertical. Place the level in the Cradle Slot on the

top of the mount. This is the slot where the Cradle As-

sembly (#11) mounts. With your hand, rotate the head of

the mount until the slot and level are pointing in the north-

south direction. Adjust the Latitude Adjustment

Handles (#26) until the bubble is centered. With your

hands, rotate the head about the DEC axis 90 degrees until

the slot and level are pointing in a east-west direction.

Carefully rotate the head about the RA axis until the

bubble is centered. Repeat these two procedures until the

bubble stays centered throughout the DEC rotation. Once

it reads level throughout the rotation, Lock the RA Lock

(#33) and apply one set of alignment arrows along the RA

housing seam on the east side of the RA housing.

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Meade SN-10 AT Instruction Manual Page 2

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