ThyssenKrupp Access Citia BOS, Installation And Service Manual

Page: 5 / 22

5
A. TIME THE GEAR RACK
Note: Multiple sections of gear rack need be slid into
the track. This may cause the gear rack to not
be fl ush with the bottom end of the track. This is
fi ne, as long as the gear rack stop no less than
5 ⅝ from the bottom of the track. Any longer
is fi ne.
A short piece of gear rack
is provided in the small
parts kit to properly space
the gear rack splices.
Do not tighten gear rack until
the proper spacing has been
achieved.
There may be a gap between two pieces of gear
rack when spacing the splice. This is acceptable
as long as the distance between the teeth is
consistent.
Between each piece of gear rack, you will need to
"time" the teeth. To do this, use the short piece
of gear rack that comes in the small parts box.
Push the two pieces of gear rack close to each
other and then force the 4" piece of on top of
the gear splice, like this:
Note: There is not a top or bottom end of the gear
rack, however the gear rack will be needing to
face the wall, i.e., if it's a left hand installation,
the gear rack will need to face the left hand wall.
Make sure your track is oriented this way.
5⅝"
The gear rack needs to
extend into this range for
correct installation.
The gear rack MUST be
6" from the top of the track.
Make sure this measure-
ment is accurate.
6"
Slide the two pieces of track together so that only a
hairline joint remains between them. Center the splice
bars on the joint as shown below and tighten the splice
bars onto the track.
Note the small, hair-line
joint between the two
pieces of track.
The splice bars are
centerd on the joint
between the two pieces
of track.
Loosen the set screws in the top sections of gear
rack and slide them up until the gear rack in the
upper track section is 6' from the top.
When the gear rack is timed, use the 4mm
Allen wrench to tighten the gear into place.
Track at top of
staircase
(side view)
Track at bottom of
staircase
(side view)
If the splice bars do not slide in easily, use the
fl athead screwdriver and the mallet to gently tap
the splice bars into place.
Tip