5–78
Replacement Procedures
Spring, Extension (Figure 5–33 )
CAUTION
Do not allow the hammer bank to rotate toward the platen during spring
replacement.
Removal
1.
Prepare the printer for maintenance (page 5–3).
2.
Open the printer cover.
3.
Remove the shuttle cover assembly (page 5–24).
4.
Unhook the extension spring (1) from the spring lugs (2) on the hammer
bank (3) and shuttle frame (4).
Installation
1.
Apply a dab of M–3 lubricant to both spring lugs (2).
CAUTION
Make sure the extension spring does not touch the MPU cable.
2.
Hook the extension spring (1) over the spring lugs (2).
3.
Install the shuttle cover assembly (page 5–24).
4.
Return the printer to normal operation (page 5–86).
Summary of Contents for P4280
Page 1: ...P4280 Line Matrix Printer Maintenance Manual R ...
Page 2: ......
Page 3: ...P4280 Line Matrix Printer Maintenance Manual R P N 155064 001 Rev B ...
Page 236: ...A 22 Configuring the Printer ...
Page 246: ...C 2 Torque Table ...
Page 263: ...D 17 Wire Data Cable No Part No Description W7 150649 001 Cable Assembly AC Ground PIN 1 ...
Page 296: ...8 Index Notes ...
Page 297: ......