Hoistway Equipment Installation; Tape Installation - O. Thompson Microflite Ultra 2000 Installation & Adjustment Manual

Section 5 Hoistway Equipment Installation
5.1

Tape Installation

Microflite Ultra 2000 uses a perforated steel tape in the hoistway. The tape and car top encoder
provide position, speed, and direction feedback to the control system.
Prior to the installation of the perforated tape, insure the location you choose will have adequate
clearance from shaft way beams, walls, counterweights, cabs, and terminal limit devices. Also,
make sure the stick is not placed too close to the governor lift arm so that when the car safeties
are activated, the stick assembly is damaged or the car safeties can not apply.
1. The tape should be hung high enough in the hoistway so that when the counterweight is
on a fully compressed buffer, the stick can continue to ride up high enough that it will not
be damaged by overhead obstructions. A bracket is provided to attach the tape to the rails.
The tape should be attached in the pit low enough so that when the car is on fully
2.
compressed buffer, the stick and any car devices do not come in contact with the tape hold
down assembly.
3. The tape spring tension should be adjusted to give adequate tension of the tape in the
hoistway such that the tape should not make noise as the car travels up the hoistway.
4. During installation, the edges of the tape sometimes become gouged. After the tape
installation is complete, as a preventative measure, the edges of the tape should be gone
over with a fine file to remove any burrs or gouges in the tape. This will lead to much
quieter operation of the encoder system as the car travels at contract speed.
5. After the tape edges are smooth, wipe off all excess oil and dirt from the face of the tape
prior to installing magnets. Do not use rags that will leave lint on the tape during cleaning.
6. Apply a light film of silicone lubricant to the stick guides every 6 months to prolong guide
life.
Revision: AA 2.2
Microflite Ultra 2000
Printed 03 - 15 - 03 5 - 1