2-2
3. Remove four button head screws securing top and rear of back cover to x-ray
tube and lift off cover.
4. Disconnect control cable leads from terminal block on tube cable bracket. ReĆ
cord and tag lead connections.
5. Remove cable clamp securing control cable to cable bracket by removing three
socket head cap screws.
6. Support the x-ray tube and remove the three hex socket flat head screws securĆ
ing each end of the tube to mounting plates on the yoke assembly.
7. Remove x-ray tube assembly from yoke assembly
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1. Support x-ray tube assembly in a position between mounting plates on yoke asĆ
sembly. See Illustration 2-1.
2. Attach each end of tube to mounting plates with three hex socket flat head
screws. Torque to 50 pound-inches (5.6 N-m).
3. Position control cable in tube cable bracket. Replace cable clamp and secure in
place using three socket head cap screws.
4. Connect control cable leads to terminal block on tube cable bracket in accorĆ
dance with connection data recorded and tagged on leads.
5. Position back cover on x-ray tube assembly and secure to tube with four 10-32
1/2 inch button head screws.
6. Cover anode and cathode HV connectors with Silicone Insulating Compound,
46-125224P3. Refer to Direction 46-013288 !.
7. Insert anode and cathode connectors into x-ray tube and secure firmly in place.
8. Check that tube rotates smoothly in yoke assembly when rotated forward and
backward between detent positions on yoke mounting plates.
9. Install collimator on x-ray tube. Refer to Section 1-2, steps 1 through 9.
10. If a new tube is installed, the field light must be checked for proper positioning.
Refer to Section 1-4, for this procedure.
If the tube being installed is a replacement, perform Beam Quality (Half
Value Layer)" in Direction 2173227-100 .
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