Shuttle Frame Assembly - Printronix P7000 Series Maintenance Manual

Shuttle Frame Assembly

Removal
1. Prepare the printer for maintenance (page 230).
2. Remove the ribbon. (Refer to the User's Manual .)
3. Remove the shuttle cover assembly (page 280).
4. Disconnect the MPU cable connector P03 and shuttle motor cable
connector P02 (page 346, items 5 and 6).
CAUTION
To prevent electrostatic damage to electronic components, always wear
a properly grounded static wrist strap when you handle the shuttle
frame assembly.
5. Disconnect the hammer drive and hammer logic cable connectors from
the terminator board on the shuttle frame assembly. (See page 342.)
6. Loosen the side 5/32 inch socket head clamp screws on each end of the
shuttle and pull the clamps back and off the guide shaft. Do not remove
the clamps. Hand tighten the clamp screws to hold the clamps back.
7. Loosen the center 5/32 inch socket head screw enough to release the
shuttle frame assembly from the base casting.
8. Unlock and slide the tractors outward as far as they will go on the tractor
support shaft.
9. Open the forms thickness lever all the way.
10. Grasp the support legs cast on both sides of the shuttle motor and lift the
shuttle frame assembly out of the base casting. Lift it slowly and carefully:
the shuttle frame assembly is heavy.
Shuttle Frame Assembly
321