Barco SilverWriter 800 - Installation of Carriage on Granite; Assembling and Mounting of the Base Carriage and Linear Motor

Field Service Manual December 2003
Page 169 of 276
Installation of carriage on granite
Assembling and Mounting of the Base Carriage and linear motor.
Preparing the Base Carriage.
1. Check if the correct tips are mounted on the carriage and on the biggest air
bearing. If not, chang them with the correct tips (G140270 x 3)
2. Check the secure nut of the air bearings. These secure nuts may not be higher than
6 mm. This is used for adjusting the air bearings.
3. Mount the cotter pins 4 x 30 in the body of the base carriage.
4. The purpose of cotter pins is to secure the carriage to the granite surface.
5. Change the 4 hexagon socket head cap screws with brass screws M5 x 40
(G187470)
6. Assemble the magnets.
7. For the left and right side on the carriage use brass screws M5 x 50. The position
of the different magnets must be positioned as follows: 2 times N S S N. In the
middle of the carriage the position of magnets parts are: 1 time S N N S and 2
times S N
Mounting the Linear Motor & Base Carriage.
Linear Motor
1. Place the two PVC strips on the vertical weak iron so that the front of these PVC
strips are in the same plane as the weak iron.
2. Clean the granite and weak iron with aceton.
3. Check that the windings of the linear motor are correct. This is done by checking
if there is no short circuit between the different windings. Look for ‘Checking the
linear motor’ in the frame below.
4. Solder the 10 zero ohm straps on the linear motor.
5. Mount the linear motor connector support to the right hand side of the weak iron,
using 2 M6x20
6. Use ordinary tape to position the linear motor on the weak iron. The reference
start position are the holes of the connector of the linear motor to the holes of the
connector support plate.
7. Fix the connector to its support plate using 2 M3x20 + washer + spring washer +
nuts.
8. Remove the protection of the tape starting at the connector side and be sure that
the linear motor stays parallel to the weak iron.
9. Mount the 6 L-PVC strips using 24 M3x12.
10. Use nuts M12