Adding To An Existing Xpresschannel - Overland Data DLT LibraryXpress Series Service Manual

14. Locate the spring-loaded wheels of the car. Referring to Figure 2-9, engage the
spring-loaded wheels in the track, while positioning the car so the captive screws are
directly over the holes in the belt block. Note: Figure 2-9 omits the door on the car
for clarity. Do not remove the door.
15. To steady the belt block, grasp the belt several inches from the block and push
toward the back of the track until the block is pressed firmly against the back of the
track. While holding the belt with one hand, compress the springs and swing the car
downward until the remaining wheels are aligned with their groove in the track.
16. While continuing to press the belt block against the back of the track, release the car
so that the stationary wheels engage their groove in the track.
17. While continuing to press the belt block against the back of the track, begin to
tighten the captive screws. When both screws are partially threaded into the belt
block, release the belt and finish tightening the screws. Be sure that the block is
fully seated against the bracket on the car. Close and secure the door on the car.
18. Using nylon button rivets, install covers over any exposed XpressChannel sections
that are not covered by modules.
19. Proceed to the section titled 'Mounting the Module Rack Slides.'

Adding to an Existing XpressChannel

Before reading this section, it may be helpful to familiarize yourself with the parts and
procedures by reading the two preceding sections. To add to an existing XpressChannel, you
must first partly disassemble it, then make the necessary changes as described in the preceding
sections. Use the following procedure for disassembly.
1. Locate the covers over the drive motor section and the base assembly. Note that the
covers are held in place by nylon button rivet fasteners. Using a suitable thin-bladed
tool, pry up the cover until the fasteners can be removed. Set the covers aside, and
save the fasteners for re-use.
2. Place the XpressChannel on a suitable work surface with the motor at the left and
pointed upward.
3. Referring to Figure 2-9, open the door of the car to gain access to the captive screws.
Do not remove the door. Loosen the captive screws until they are disengaged from
the belt block.
4. Grasp the closed side of the car and pull it toward you so as to compress the springs
underneath the car. When the wheels on the closed side are clear of the track, lift the
car from the track and set it aside.
5. Referring to Figure 2-6, locate the tensioner ramp in the base section. Compress the
spring until the hole in the tensioner ramp is aligned with a hole in the base section.
Insert an 0.050" Allen wrench or a paper clip through the holes. This sets the idler
pulley for zero belt tension.
6. Referring to Figure 2-8, loosen the four screws on the belt block far enough to pull
the ends of the belt free of the block. Pull the belt free of the motor drive assembly
and the base section and set the belt aside.
7. Turn the XpressChannel over and support it so that neither the motor nor the flange
at the bottom of the base assembly is touching the work surface.
Chapter 2 - Installation 23