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OVER AND UNDER TRAVEL
Run the elevator to the top and then to the bottom landing. Ensure that the platform will reach
the floor level with at least 3" (76 mm) of ‘runby’ at the top floor and 3" of ‘runby’ at the bottom
floor. This may vary by jurisdiction.
Unless otherwise ordered, based on the travel distance supplied with the order, Concord
provides 3" of extra travel at the top and 3" of extra travel at the bottom. If the travel is more
than 6" higher than the travel distance supplied, the jack will not work. Shimming the jack will
not help and a new jack will have to be ordered.
INSTALLING THE RAIL STOPS
Before working under the platform, install the rail stops that have been supplied. The rail stops
are two (2) sections of 3" long, 1/4" iron with approximately two feet of light chain attached.
Position the two sections on the rails and drill two holes in the rails for attachment.
Typically, the rail stops are set approximately 4' 6" (1372 mm) above the pit floor. The light
chain is attached to the wall with a small screw. When not in use, the rail stops with nuts and
bolts hang freely against the shaft wall and are available for use, whenever required.
ADJUSTING THE CABLES
IF CABLE ADJUSTMENT WITHIN THE WEDGE
ASSEMBLY IS REQUIRED, MAKE SURE THE PLATFORM
IS BOTTOMED OUT OR ON THE SAFETIES BEFORE
RELEASING THE CABLE WEDGE AND CLAMPS.
There may be instances where the platform will not be able to reach the top landing, but the
jack can still handle the travel. When this happens, it usually means that the rope wedge
terminations have not been correctly adjusted. If the rope wedge terminations are not properly
adjusted and if the pit is deep enough, the elevator may descend 6" below the bottom floor
level, but not be able to reach the top landing. To correct this problem, shorten the cables by
tightening the nuts on the 1/2" threaded rods. Each cable should be shortened evenly to
ensure that the elevator will reach the top landing and the terminal ‘runbys’ with equal tension.
MAKE SURE THERE IS GOOD COMMUNICATION
BETWEEN YOU AND YOUR CO-WORKER. DO NOT
PLACE YOURSELF IN AN UNSAFE POSITION DURING
THIS PROCEDURE. ATTACH THE RAIL SAFETY STOPS.
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