Gas Spring Removal And Replacement; Replacing The Linear Bearings - Accuprint AP42CL 8000 Service Manual

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94MS42 Rev.B1 S/W Ver 2.06

Gas Spring Removal and Replacement

Each frame assembly has two gas springs to support the top cover sheet
frame when it is opened.
Open the frame with the spring to be replaced.
Cl The glass frame assembly is heavy, make sure you support
it well before removing the gas spring.
Remove the retainer from both ends of the spring.
Pull the spring from the retaining ball mounts.
Install the new spring in the reverse order.

Replacing the Linear Bearings

There are two linear bearings on the left-hand side of each exposure
frame, one in the front and one in the rear. They move along the shaft
when the frames move in and out of the AP 42CL 8000. Check the linear
bearings if frame transport becomes noisy.
To replace the lower frame front bearing see Tray Assembly Drawing
Remove all the mounting bolts from the left rail cover and slide it forward
about 3" to 4" (76mm to 102mm).
Remove both linear bearing retainer block screws, using a
wrench.
Lift up the frame assembly about 2" (51 mm) and slide the bearing block
assembly forward off the shaft, support the frame to prevent contact with
the shaft.
Remove the bearing from the retainer block (see Tray Assembly Drawing
Detail B)
Install in reverse order.
To replace the upper front bearing: (see Tray Assembly Drawing)
Open the upper frame.
Remove the left light-block rail and then close the upper frame
Unplug the drive motor electrical connector from the control box and
slide the top frame back about 10" (254 mm).
Remove both of the linear bearing retainer block screws, using a
Allen wrench.
Lift up the frame assembly about 2" (51 mm) and slide the bearing block
assembly forward off the shaft, support the frame to prevent contact with
the shaft.
Remove the bearing from the retainer block.
Install in reverse order.
To replace either of the rear bearings:
Remove the left gas spring mount from the Mylar® frame.
Remove the left side panel.
5
/
" Allen
32
5
/
"
32
10-7

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