5–68
Replacement Procedures
Shaft, Splined (Figure 5–29 )
Removal
1.
Prepare the printer for maintenance (page 5–3).
2.
Open the printer cover.
3.
Remove the paper feed timing belt (page 5–4).
4.
Remove the screw (1) and ground clip (2).
5.
With grip ring pliers, remove the grip ring (3) from the splined shaft (4).
6.
Pull the bearing (5) and spring link (6) with the spring (7) off the
splined shaft (4).
7.
Unlock the left and right tractors (8 and 9) and slide them to the center.
8.
Remove the screw (10) and bearing clamp (11).
9.
Grasping the vertical adjustment knob (12), slide the splined shaft (4)
out of the left and right side plates (13 and 14) and the tractors (8 and 9).
Installation
1.
Open the doors on the left and right tractors (8 and 9). Position the
tractor belts so the alignment marks are at the top on both tractors.
2.
Grasp the vertical adjustment knob (12) and slide the splined shaft (4)
through the right side plate (14), tractors (8 and 9), and the left side
plate (13). Make sure the same spline passes the marked groove on each
tractor.
3.
Install the bearing clamp (11) and screw (10).
4.
Apply a thin film of M–3 grease to the bearing (5).
5.
Slide the spring link (6) and bearing (5) onto the splined shaft (4).
6.
Attach the spring (7) to the left side plate (13) and the spring link (6).
7.
Install the grip ring (3) on the splined shaft (4) with 0.010 inches of
clearance between the grip ring and the nylon bearing (5).
8.
Install the ground clip (2) and screw (1).
9.
Install the paper feed timing belt (page 5–4).
10. Set the paper feed timing belt tension (page 4–2).
11. Adjust splined shaft skew (page 4–20.)
12. 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: ......