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Procedure, Field Replacement, Level Cage Kit, Base Exit 

 

Page

 

8

 

of

 

9

 

 

Document No 

135266 Rev B

 

Copyright © Sea Tel, Inc 2011 - The information contained in this document is proprietary to Sea 
Tel, Inc..  This document may not be reproduced or distributed in any form without prior written 

consent of Sea Tel, Inc.  

 

 

15.

 

Calibrating

 

the

 

Remote

 

Tilt

 

Setting:

    

This

 

procedure

 

is

 

required

 

to

 

calibrate

 

the

 

level

 

cage

 

so

 

that

 

all

 

the

 

sensors

 

will

 

be

 

accurately

 

aligned

 

to

 

their

 

axis.

 

The

 

fluid

 

filled

 

tilt

 

sensor

 

provides

 

a

 

two

 

dimensional

 

horizon

 

reference.

 

The

 

system

 

is

 

not

 

able

 

to

 

automatically

 

calculate

 

the

 

exact

 

center

 

value,

 

therefore

 

it

 

is

 

necessary

 

to

 

perform

 

this

 

procedure

 

to

 

manually

 

enter

 

any

 

offset

 

required

 

to

 

make

 

sure

 

the

 

PCU

 

receives

 

a

 

true

 

horizon

 

reference.

 

 

1.

 

Turn

 

dishscan

 

off:

    

Enter

 

into

 

the

 

Setup

 

Menu

 

by

 

pressing

 

and

 

holding

 

the

 

 

arrows

 

together

 

until

 

the

 

EL

 

Trim

 

or

 

Auto

 

Trim

 

parameter

 

is

 

displayed.

  

Use

 

the

 

 

arrow

 

key

 

to

 

scroll

 

through

 

the

 

menu

 

until

 

the

 

dishscan

 

window

 

is

 

displayed.

 

Press

 

the

 

 

arrow

 

to

 

activate

 

the

 

window

 

and

 

then

 

press

 

the

 

 

arrow,

 

followed

 

by

 

the

 

 

button

 

to

 

turn

 

dishscan

 

from

 

on

 

to

 

off.

 

*Note:

 

When

 

you

 

press

 

the

 

  

arrow

 

to

 

turn

 

dishscan

 

off

 

you

 

won’t

 

see

 

the

 

display

 

change

 

until

 

you

 

press

 

the

 

 

button.

 

 

(

Steps

 

2

7

 

requires

 

assistance

 

to

 

observe

 

and

 

operate

 

antenna

 

simultaneously

)

 

 

2.

 

Enter

 

into

 

the

 

Setup

 

Menu

 

by

 

pressing

 

and

 

holding

 

the

 

 

 

arrows

 

together

 

until

 

the

 

EL

 

Trim

 

or

 

Auto

 

Trim

 

parameter

 

is

 

displayed.

  

 

3.

 

Push

 

the

 

 

arrow

 

key

 

until

 

the

 

Remote

 

Tilt

 

window

 

is

 

displayed.

 

 

4.

 

Push

 

the

 

 

arrow

 

key

 

to

 

activate

 

the

 

Remote

 

Tilt

 

setting.

 

 

5.

 

   

Use

 

the

 

arrow

 

keys

 

to

 

position

 

the

 

bubble

 

as

 

close

 

to

 

the

 

center

 

as

 

possible.

 

Each

 

press

 

of

 

an

 

arrow

 

key

 

on

 

the

 

directional

 

pad

 

will

 

move

 

the

 

Remote

 

Tilt

 

½

 

a

 

degree.

 

It

 

is

 

advised

 

that

 

you

 

only

 

press

 

the

 

button

 

once

 

and

 

wait

 

for

 

the

 

axis

 

to

 

move

 

before

 

pressing

 

it

 

again.

  

 

When

 

standing

 

behind

 

the

 

antenna

 

looking

 

at

 

the

 

bubble,

 

if

 

the

 

bubble

 

is

 

over

 

to

 

the

 

right,

 

you

 

need

 

to

 

press

 

the

 

 

(right)

 

arrow

 

to

 

bring

 

the

 

bubble

 

into

 

the

 

center.

 

If

 

the

 

bubble

 

is

 

down

 

towards

 

you,

 

you

 

need

 

to

 

press

 

the

 

 

(down)

 

arrow

 

to

 

bring

 

it

 

towards

 

the

 

center.

 

If

 

the

 

bubble

 

is

 

to

 

the

 

left,

 

you

 

need

 

to

 

press

 

the

 

 

(left)

 

arrow

 

and

 

if

 

the

 

bubble

 

is

 

up

 

towards

 

the

 

top,

 

you

 

need

 

press

 

the

 

 

(up)

 

arrow

 

to

 

move

 

it

 

towards

 

the

 

center

.

 

 

 

 

Summary of Contents for Base Exit

Page 1: ......

Page 2: ...ystems remote tilt setting 4 Verify RemoteTilt If the pedestal is having stability problems firstly check the remote tilt setting by looking at the level bubble on top of the level cage note older systems didn t have a bubble installed on top of the level cage If the bubble isn t as close to central as possible the remote tilt setting isn t correctly calibrated meaning the rate sensors won t be co...

Page 3: ...acRemP trace returns or the systems axis returns back to its original position instantly without deviating or taking time to settle Now push the cross level beam down to the right and hold it in position Verify that the CL trace on DacRemP moves up an equal amount to the movement exerted on the axis Release the Axis and verify the DacRemP trace returns or the systems axis returns back to its origi...

Page 4: ...ed by the PCU A mechanical problem such as the belt skipping on the sprocket or another physical restriction could also cause this kind of error Skewing the antenna in azimuth by holding the right or left arrow key to drive the antenna slowly may also present an issue If the system keeps finding the satellite at different azimuth positions but at the same relative then the encoder is functioning c...

Page 5: ...l cage rectified the fault cleaning the pins on the PCU end of the reference harness is also advisable 11 Further Information Should the system fail to target the correct elevation physically pointing at a different position to the reading on the DAC or have issues driving past a certain elevation position then the most likely cause is a defective level cage motor If the system is displaying a ped...

Page 6: ... to side on the spindle not over tightened so it can move smoothly 14 Replacing the Level Cage Assembly 14 1 Tools 2mm Flat Blade Terminal Screw Driver 1 Phillips Screwdriver Wrench Spanner 14 2 Procedure Procedure for replacing the level cage assembly Sea Tel kit part number 135343 level cage assembly part number 122937 1 and tensioning the level cage belt The principal is the same for the XX06 l...

Page 7: ...he belt from level cage motor sprocket 4 Using a socket or wrench remove the Nylock nut securing the level cage to the spindle 5 Take care not to remove the level standoff spacer from the spindle 6 Install the replacement level cage onto the spindle slipping the belt over the level cage pulley and making sure its end stops are aligned correctly Secure it with the 1 2 Nylock nut tightened so it sli...

Page 8: ... of Sea Tel Inc 9 Tension the belt by sliding the motor assembly by hand away from level cage and tighten one of the four screws 10 Increase the belt tension until the belt can only be easily twisted just turn with your fingers 11 If the belt tension is too tight lose adjust until correct and then secure the motor 12 Plug the reference harness back into the level cage D Sub connector and tighten t...

Page 9: ...e window and then press the arrow followed by the button to turn dishscan from on to off Note When you press the arrow to turn dishscan off you won t see the display change until you press the button Steps 2 7 requires assistance to observe and operate antenna simultaneously 2 Enter into the Setup Menu by pressing and holding the arrows together until the EL Trim or Auto Trim parameter is displaye...

Page 10: ...row key to scroll through the menu until the dishscan window is displayed Press the arrow key to activate the window and then press the arrow key followed by the button to turn dishscan from off to on Note When you press the arrow to turn dishscan on you won t see the display change until you press the button 8 Save the Remote Tilt setting in the PCU Press the arrow key until the Remote Parameters...

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