Dormakaba SKYFOLD CLASSIC Series User manual
OWNER’S
MANUAL
CLASSIC™ SERIES
ZENITH®SERIES
ZENITH®PREMIUM SERIES
MIRAGE®
SKYFOLD CLASSIC, ZENITH AND MIRAGE RETRACTABLE WALLS 2
TRADEMARKS
Skyfold is a registered trademark of Skyfold Inc. and Skyfold Investments Ltd. Other products mentioned
in this manual are trademarks or registered trademarks of their respective owners. Skyfold is protected
by one or more of the following patents:
• #5,062,464 (USA) • #6,267,169 B1 (USA) • #6267169 (USA)
• #6,808,000 (USA) • #2,064,348 (CANADA) • #9045935 (USA)
• #0587572 (EUROPE) • #0587572 (GERMANY) • #2436866 (EUROPE)
• #653284 (AUSTRALIA) • #12/893119 (USA) • #2013327364 (AUSTRALIA)
• #2011226979 (AUSTRALIA) • #8327905 (USA) • #2912235 (EUROPE)
• #111863236.6 (EUROPE) • #2754227 (CANADA) • #6117363 (JAPAN)
• #12108530.6 (HONG KONG) • #8336257 (USA)
Other patents pending in various countries.
COPYRIGHTS
All rights reserved. Reproduction of this manual in whole or in part, by any means whatsoever, is prohibited
without the prior written consent of Skyfold Inc.
MAY 2018 EDITION
TABLE OF CONTENTS
TABLE OF CONTENTS
SKYFOLD CLASSIC, ZENITH AND MIRAGE RETRACTABLE WALLS 3
ABOUT YOUR SKYFOLD WALL SYSTEM 4
COMPONENTS 6
OPERATING SWITCHES* 6
LIFTING MECHANISMS AND PANELS 7
MOTOR UNITS 13
SKYFOLD WALLS IN OPERATION 16
OPERATING A SKYFOLD WALL 16
OPERATING A “T” CONFIGURATION APPLICATION 17
OPERATING MULTIPLE IN-LINE SKYFOLD WALL SECTIONS 17
BACK-UP OPERATING PROCEDURE 18
MAINTENANCE 19
PERIODIC MAINTENANCE 19
ADDITIONAL SERVICING 21
CLEANING 22
WARRANTY 23
* For simplicity, Skyfold’s standard keyed & push button switches and Skyfold’s optional
touch screen operator stations (standard with Zenith Premium only) are often referred
to as “switch(es)”.
TABLE OF CONTENTS
SKYFOLD CLASSIC, ZENITH AND MIRAGE RETRACTABLE WALLS 4
ABOUT YOUR SKYFOLD WALL
Before operating your Skyfold wall, read this manual carefully as it includes a description of
the wall’s major components, as well as procedures related to the operation of the wall, a
maintenance schedule and explanations regarding the warranty.
Your Skyfold wall is a fully automatic operable wall that is activated by applying pressure
to two (2) switches simultaneously. In addition to simplicity of operation, your Skyfold wall
was designed with safety as a primary concern. This is reected not only in the design
philosophy of the system, but also in specic subsystems and components as listed below.
➢The wall’s movement is stopped instantly when:
- Pressure is released from either switch;
- A loss of power occurs;
- A mechanical jamming occurs (upward direction only);
- Excessive current is being drawn by the motor;
- Pressure is applied on the obstruction sensor or when the infra-red sensor
(Mirage) detects an obstruction. If the sensor is triggered, the wall will reverse
automatically for three (3) seconds.
➢If the downward wall speed becomes substantially higher than normal, a hydraulic
checking device will lower the wall’s speed.
➢The cables used to lift and support your Skyfold wall(s) are of the highest
strength and quality. In the unlikely event that a cable fails, the other cables
will not be aected.
➢The programmable logic controller cuts o power if a short circuit is detected on
the 12V or 24V line or if polarity is reversed.
➢The electrical control box contains the latest in overload protection (models > 1hP)
and other electrical safeguards.
➢The interface between the gearbox and the line shaft ensures a high degree
of safety.
➢The movement of the wall is triggered by two switches, thereby increasing security.
Skyfold is pleased to be an ocial member of the U.S. Green Building
Council. Skyfold walls are constructed with up to 97% recycled materials.
If, for whatever reason, your Skyfold wall needs to be discarded, please
consult your local recycling and disposal regulations. You may also
contact your authorized local Skyfold dealer for assistance.
SKYFOLD CLASSIC, ZENITH AND MIRAGE RETRACTABLE WALLS 5
ABOUT YOUR SKYFOLD WALL
Warning
➢Two operators, one per switch on both sides of the wall, are required for the
duration of the wall’s operation.
➢Do not place objects between the panels, underneath the Skyfold wall, or in
the near vicinity of the Skyfold wall as this can damage the Skyfold wall when
it is in motion.
➢Skyfold walls could pose a pinching and/or crushing hazard. Do not operate
your Skyfold wall with persons or objects in the path or immediate vicinity of
the Skyfold wall and ensure that both sides of the Skyfold wall are clear of
obstructions.
➢In case of a malfunction, do not operate the Skyfold wall or attempt to repair it.
Call your authorized local Skyfold dealer for service.
➢Do not operate your Skyfold wall if it is making any abnormal noises or if the
Skyfold wall does not appear to be working properly. Contact your authorized
local Skyfold dealer immediately.
➢Do not operate your Skyfold wall if a panel is loose or displaced from its normal,
securely fastened position.
➢Do not operate your Skyfold wall if panels are missing as this can damage
the system.
➢Heat generated by lights inside the ceiling pocket can damage the panels.
Lights that are located inside the Skyfold ceiling pocket must be turned on only
when the wall is completely down and never when the wall is partially or fully
retracted into the pocket.
➢When an obstruction causes the Skyfold wall to halt its descent, the wall will
auto-reverse for three (3) seconds. The obstruction must be cleared prior to
resuming the wall’s descent.
➢Skyfold walls are intended only for interior use in which the room
is climate-controlled.
SKYFOLD CLASSIC, ZENITH AND MIRAGE RETRACTABLE WALLS 6
COMPONENTS
OPERATING SWITCHES
Before operating the switches, please read the safety precautions and the procedures
contained in the section, .
Figure 1a: Key Switch (Standard)
In an eort to optimize the safety features provided by the Skyfold wall, one switch is
installed on both sides of the Skyfold wall. These switches control the wall’s movement.
Both switches must be activated simultaneously for the wall to move upwards or
downwards while the key is turned to the desired position. This ensures that there
are two people present at all times during the operation of the wall.
When one of the switches is released, the wall stops immediately without coasting.
The keyed switch plate includes an illuminated push button that ashes fault codes if the
Skyfold wall does not work when activated. One to ten ashes represent ten dierent ash
codes (see
Figure 1a
).
North America
Europe & Asia
Illuminated
push button
Illuminated
push button
SKYFOLD CLASSIC, ZENITH AND MIRAGE RETRACTABLE WALLS 7
COMPONENTS
Figure 1b: Touch Screen Operator Station (Standard on Zenith Premium)
If your Skyfold system is equipped with the optional touch screens, please refer to the
issued separately. The touch screens must be activated
simultaneously to operate the wall. The 4.3” resistive LCD touch screens, with multilingual
capabilities and a 4-digit adjustable user pin, will display one to ten possible fault codes in
case of an electrical system failure.
For more on fault codes, please refer to the section, .
LIFTING MECHANISMS AND PANELS
Figure 2: Lifting Mechanisms and Panels
CLASSIC
TABLE OF CONTENTS
SKYFOLD CLASSIC, ZENITH AND MIRAGE RETRACTABLE WALLS 8
COMPONENTS
ZENITH PREMIUM
Cable drum Ceiling support
Hanger
Pocket closure panel
Lifting cable
Ring sheave
End seal cable
End seal
End seal actuator
Floor seal
Metal T-bar
Eye bolt
Panel
Panel arm
Sheaves
ZENITH
Figure 2: Lifting Mechanisms and Panels (cont’d)
SKYFOLD CLASSIC, ZENITH AND MIRAGE RETRACTABLE WALLS 9
MIRAGE (Glass Panels)
Figure 2: Lifting Mechanisms and Panels (cont’d)
Lifting Mechanisms
The internal skeleton of the Skyfold wall consists of a series of lifting mechanisms that are
made of structural grade aluminium and steel. For greater longevity and silent operation, all
mechanical pivot points are made of high strength steel bolts or pins on plastic bushings.
Aircraft-grade wire rope or cables, of the highest strength and quality, pass through the
mechanisms and fold and unfold the mechanisms as they wrap and unwrap on their
respective drums (see
Figure 2
).
Panels (All Models Except Mirage)
The panels are a composite construction with a heavy-gauge steel face sheet to resist
abuse. Your choice of nish was carefully applied to the panels. A removable protective
coating protects it from dirt and other debris (see
Figure 2
).
Glass Panels (Mirage Only)
Skyfold Mirage walls have a single laminated glass composition, which consists of 3/16” (5
mm) annealed glass + 0.060” (1.5 mm) lm + 3/16” (5 mm) annealed glass. Overall thickness:
approximately 7/16” (11.5 mm) (see
Figure 2
).
COMPONENTS
SKYFOLD CLASSIC, ZENITH AND MIRAGE RETRACTABLE WALLS 10
COMPONENTS
The glass panel’s construction also provides superior acoustic properties. According to
industry norms, the single laminated glass panels alone have a Sound Transmission Class
(STC) rating of 36 (Rw 36). The Mirage wall as a system has an STC rating of 33 (Rw 33) in
accordance with ASTM E90 (ISO 140-3).
Cables
The cables that lift and support the Skyfold wall are aircraft-grade wire cables of the highest
strength and quality. These cables are sized to oer a high factor of safety. Each of these
cables is attached to and lifted by a separate drum and each drum is keyed into the solid-
steel line shaft. In the unlikely event that a cable fails, the other cables will not be aected
(see
Figures 2 and 5
).
Sheaves (Pulleys)
As illustrated in
Figure 2
, the lifting cables wrap around the sheaves, thereby providing an
additional pick-up point
End seals
The exible end-seal membranes ll the vertical gap between the Skyfold panels and the
xed walls to form a tight acoustic seal (see
Figure 3a
). On the Mirage model, xed brush
and sweep seals glide on the wall track to close the gap between the wall track and the
lifting mechanisms, and thus provide a visual barrier (see
Figure 3b
).
The Skyfold wall halts its descent when the lower limit switch stops the lifting motor,
at which point the vertical end seals are activated automatically.
The end seals deploy and retract in approximately eight (8) seconds. The end seals retract
automatically when you raise the wall from its fully closed position. As a default setting,
the wall will not begin to rise until the end seals are completely retracted. At the time of
installation, the wall can be programmed to start rising once the end seals have cleared of
the xed walls (see
Figure 3a
). Conversely, the brush and sweep seals on the Mirage model
do not retract.
The Skyfold wall can lose some of its acoustic properties if a seal does not activate or if a
gap is still present after the seals were activated. Moreover, an un-retracted seal dragging
on the xed wall can cause damage to the seal (see
Figures 2
and
3a
).
Warning
➢Do not operate your Skyfold wall if some or all of the vertical end seals do not
retract. If either condition occurs, contact your authorized local Skyfold dealer
for service. Please note, on the Mirage model, the brush and sweep seals do
not retract.
SKYFOLD CLASSIC, ZENITH AND MIRAGE RETRACTABLE WALLS 11
COMPONENTS
Figure 3a: Vertical End Seals at Fixed Wall
Figure 3b: Vertical End Seals at Fixed Wall
Figure 4a: Obstruction Sensor and Floor Seals
CLASSIC/ZENITH/ZENITH PREMIUM
CLASSIC/ZENITH/ZENITH PREMIUM
MIRAGE
Floor Seals
On the Classic, Zenith and Zenith Premium models (
Figure 4a
) and on the Mirage model
(
Figure 4b
), exible bulb seals close the gap between the oor and bottom panel.
SKYFOLD CLASSIC, ZENITH AND MIRAGE RETRACTABLE WALLS 12
Obstruction/Infra-Red Sensor
On the Mirage model, an infra-red sensor is located on the bottom of the wall track. On
all other models, the bottom edge of the wall is equipped with an obstruction sensor (see
Figure 4a
) that runs the entire length of the wall. If the obstruction sensor comes in contact
with an obstruction—or if the infra-red beam is broken—while the wall is descending, then
the power is cut to the lifting motor, the electromagnetic brake engages, and the wall’s
descent instantly halts. The wall will then automatically reverse direction for three (3)
seconds (see
Figures 2
and
4a
).
Warning
➢The obstruction sensor on the Classic, Zenith and Zenith Premium models will
not detect any obstruction that is less than 3” (76 mm) from the ends of the wall.
➢After the wall reverses direction for three (3) seconds, you must remove the
obstruction prior to resuming the Skyfold wall’s descent.
➢If the wall has sustained damage, do not operate the wall. Call your authorized
local Skyfold dealer for an immediate inspection.
Note that the pneumatic sensor on the Classic, Zenith and Zenith Premium models is an
integral part of the obstruction sensor and is illustrated in
Figures 2
and
4a
.
Figure 4b: Floor Seals
MIRAGE
COMPONENTS
TABLE OF CONTENTS
SKYFOLD CLASSIC, ZENITH AND MIRAGE RETRACTABLE WALLS 13
COMPONENTS
MOTOR UNITS
Figure 5: Standard Drive Unit
Electromagnetic brake
Electric gear motor
(lifting motor)
Over-torque sensor
Lifting cable
Hydraulic checking
device (safety motor)
Optical encoder
Cable drum
Motor base
Line shaft
Output signal plug
Power switch
Electrical control box
Electric Gear Motor (Lifting Motor)
Your Skyfold wall system is equipped with a sealed, heavy-duty gear motor that powers the
entire system. This lifting motor is designed for hundreds of stops and starts an hour and is
rated for service several orders of magnitude more severe than the service it experiences
while operating your Skyfold wall.
The lifting motor is equipped with an electromagnetic brake. Power to the lifting motor is cut
and its electromagnetic brake engages automatically when one of the following occurs:
➢An operator switch is released;
➢The wall reaches its upper limit (fully retracted into the pocket);
➢The wall reaches its lower limit (fully closed position);
➢While descending, the obstruction sensor/infra-red beam (Mirage) is triggered;
➢While ascending, the over-torque sensor detects excessive torque on the motor;
➢The thermal-overload relay in models >1hP, which is located in the electrical control
box, detects excessive current being drawn by the motor;
➢A short circuit is detected on the 12V or 24V line or if the polarity is reversed;
➢The main power switch, breaker or fuse is tripped.
TABLE OF CONTENTS
SKYFOLD CLASSIC, ZENITH AND MIRAGE RETRACTABLE WALLS 14
COMPONENTS
Spring-Cushioned Torque Arm
A spring-cushioned torque arm supports the motor assembly in order to soften the starts
and stops of the system. As part of this assembly, a sensor on the torque arm detects higher
than normal torque levels. In the event of a mechanical jamming in the system, or if the
upper limit switch fails to operate, the over-torque sensor quickly cuts power to the motor
(see
Figure 5
).
Line Shaft
The line shaft that rotates all of the cable drums is continuous through the gear motor
without a coupling. A better interface between the gearbox and the line shaft ensures a
higher degree of safety (see
Figure 5
).
Hydraulic Checking Device (Safety Motor)
A hydraulic checking device, also known as a hydraulic parachute, is separate from the gear
motor assembly and is powered by the line shaft itself (see
Figure 5
).
When the wall is traveling downwards, this hydraulic checking device builds up a certain
hydraulic pressure that is dependent on the wall’s travel speed. In normal operation, the
pressure is very low, thus the checking device oers no appreciable braking force on the
wall. If the wall speed becomes substantially higher than normal, the checking device oers
sucient braking force to lower the wall at a speed of approximately 150% of the normal
operating speed.
Electrical Control Box
Skyfold’s electrical control box meets Underwriters Laboratories (UL), Canadian Standards
Association (CSA) and European Conformity (CE) requirements. The enclosure itself is
constructed of heavy-gauge steel. It is typically located within 15 feet (4.5 meters) of the
motor unit and is accessible via an access panel in the ceiling. For warranty protection, it has a
manufacturer’s seal, thereby deterring unauthorized tampering.
There is a main power switch on the cover of the electrical control box (see
Figure 5
).
TABLE OF CONTENTS
SKYFOLD CLASSIC, ZENITH AND MIRAGE RETRACTABLE WALLS 15
COMPONENTS
Upper (Open) and Lower (Closed) Limit Controls
Your Skyfold wall stops automatically upon reaching its upper limit (fully open) position or
its lower limit (fully closed) position. There is no need for the operator to carefully time the
release of the operator switches. These limits are set by the Skyfold installer at the time of
installation.
AV / Dry Contact for Linked Building Systems
For integration with other building systems, your Skyfold wall system is equipped with dry
contacts identifying when the wall is in the “up” or “down” position. The dry contacts are
sourced from the control box and are labelled as such (see
Figure 6
).
A maximum power supply of 24 volts is provided by the A/V system that is to be controlled
by these contacts. Skyfold provides a connector plug and a 6” (150 mm) long extension
cord to the A/V dry contacts found on the outside of the control box (see
Figure
6). The
extension cord comes with a male and female connector. A separate female connector is
supplied for the connection to the A/V system. The male connector on the extension cord
has the following wire designations:
• Black #1 – Wall Down Com1 • White #2 – Wall Down Dry Contact 250mA
• Red #3 – Wall Up Com1 • Green #4 – Wall Up Dry Contact 250mA
Using 18 or 22-gauge wires, the electrician connects the A/V system to the pins in the
separate female connector. Access to the interior of the control box is not required for this
hook-up and a manufacturer’s seal deters unauthorized entry.
Warning
➢Only qualied Skyfold personnel are authorized to perform any type of
maintenance and/or repair work on your Skyfold system. Unauthorized
work will void the Skyfold warranty, as stated in the warranty section
of this owner’s manual.
A/V Dry Contact
Connector Plug
Figure 6: A/V Dry Contact Plug (Position Signal)
Warning
➢Heat generated by lights
inside the ceiling pocket can
cause the Skyfold panels to
delaminate. Lights that are
located inside the Skyfold
ceiling pocket must be turned
on only when the wall is
completely down and never
when the wall is partially or
fully retracted into the pocket.
TABLE OF CONTENTS
SKYFOLD CLASSIC, ZENITH AND MIRAGE RETRACTABLE WALLS 16
SKYFOLD WALLS IN OPERATION
OPERATING A SKYFOLD WALL
The following procedures apply to normal operating situations.
Warning
➢Two operators, one per switch on both sides of the wall, are required for the
duration of the wall’s operation.
➢Do not place objects between the panels, underneath the Skyfold wall, or in
the near vicinity of the Skyfold wall as this can damage the Skyfold wall when
it is in motion.
➢Skyfold walls could pose a pinching and/or crushing hazard. Do not operate
your Skyfold wall with persons or objects in the path or immediate vicinity
of the Skyfold wall and ensure that both sides of the Skyfold wall are clear
of obstructions.
➢In case of a malfunction, do not operate the Skyfold wall or attempt to repair it.
Call your authorized local Skyfold dealer for service.
➢Do not operate your Skyfold wall if it is making any abnormal noises or if the
Skyfold wall does not appear to be working properly. Contact your authorized
local Skyfold dealer immediately.
➢Do not operate your Skyfold wall if a panel is loose or displaced from its normal,
securely fastened position.
➢Do not operate your Skyfold wall if panels are missing as this can damage
the system.
➢Heat generated by lights inside the ceiling pocket can damage the panels.
Lights that are located in the Skyfold ceiling pocket must be turned on only
when the wall is completely down and never when the wall is partially or fully
retracted into the pocket.
➢When an obstruction causes the Skyfold wall to halt its descent, it will auto-
reverse for three (3) seconds. You must clear the obstruction prior to resuming
the wall’s descent.
➢It is prohibited to use your Skyfold wall(s) to lift material, objects and/or persons
TABLE OF CONTENTS
SKYFOLD CLASSIC, ZENITH AND MIRAGE RETRACTABLE WALLS 17
SKYFOLD WALLS IN OPERATION
Standard Operation
1. Ensure that both operators of the Skyfold wall have an unobstructed view of the wall. The
Skyfold wall must be monitored from both sides of the wall for the duration of the wall’s
ascent or descent as this can prevent damage to the Skyfold wall, and/or injury.
2. At both switches, activate and maintain pressure simultaneously on the switches with the
key turned to the desired position. If your Skyfold system is equipped with the optional
touch screens, please refer to the
issued separately.
3. Release the switches once the desired position is reached or after the wall stops
automatically by its upper or lower limit controls.
OPERATING A “T” CONFIGURATION APPLICATION
The following procedures apply to situations wherein two Skyfold walls meet in a “T”
Conguration. In a “T” Conguration, one wall stacks above the other in the ceiling pocket.
The wall operating sequence is entirely controlled by the key switch (or touch screen) logic
circuit in the electrical control box.
1. Ensure that both operators of the Skyfold wall have an unobstructed view of the wall. The
Skyfold wall must be monitored from both sides of the wall for the duration of the wall’s
ascent or descent as this can prevent damage to the Skyfold wall and/or injury.
2. When deploying the Skyfold walls in the down position, ensure that the lower Skyfold
wall is in the fully closed position before bringing down the upper Skyfold wall.
3. When retracting the walls, ensure that the upper Skyfold wall is fully retracted into its
ceiling pocket before bringing up the lower Skyfold wall.
4. At both switches, activate and maintain pressure simultaneously on the switches with the
key turned to the desired position. If your Skyfold system is equipped with the optional
touch screens, please refer to the
issued separately.
5. Release the switches once the desired position is reached or after the wall stops
automatically by its upper or lower limit controls.
OPERATING MULTIPLE IN-LINE SKYFOLD WALL SECTIONS
Multiple Skyfold wall sections, controlled by a single pair of switches with their own
independent motor units, are used to create a monolithic Skyfold barrier across long
distances or over stepped or sloped oors.
There are mechanical acoustic
seals between each Skyfold wall section, similar to those found at the ends of the Skyfold
wall, which deploy and ll the gap between wall sections. The mechanical seals deploy
automatically once all wall sections reach their lower limits. When raising the Skyfold wall
sections from their completely closed positions, there is a default delay of approximately
eight (8) seconds while all the mechanical seals retract. At the time of installation, the wall
can be programmed to start rising once the end seals have cleared of the xed walls.
SKYFOLD CLASSIC, ZENITH AND MIRAGE RETRACTABLE WALLS 18
SKYFOLD WALLS IN OPERATION
On the Mirage model, regular xed sweep and brush seals are used to close the gap
between each Skyfold wall section.
All Skyfold wall sections operate simultaneously. However, the Skyfold wall sections
take dierent amounts of time to reach their upper and lower limits because of the
following factors:
➢There could be slight dierences in the motor speeds of these wall sections.
➢For sloped or stepped oors, there is a dierence in height between the upper and
lower limits of the Skyfold wall sections.
BACK-UP OPERATING PROCEDURE
In the unlikely event that the Skyfold wall does not respond to the key switch operation, it
could be operated by using a heavy-duty drill. A shaft extension through the fan cover of
the motor allows for an alternate method of raising and lowering the wall. The system must
be recalibrated before it can be used again. Leave the control box disconnect switch in
the OFF position until it can be recalibrated by a certied Skyfold installer. Please note, this
diagram is for illustration purposes only.
Please contact your authorized local Skyfold dealer for complete operating instructions.
UP
OFF
ON
Control box switch
in OFF position
Second shaft
Counter clockwise
rotation = wall UP
Skyfold motor with
second shaft
(up to 5 HP [3.73 kW])
1100 W, 1/2" drill
with socket extension
Brake release
lever
Brake release lever
Maximum ascent time ~ 15 minutes
SKYFOLD CLASSIC, ZENITH AND MIRAGE RETRACTABLE WALLS 19
Only qualied Skyfold personnel are authorized to perform any type of maintenance and/or
repair work on your Skyfold wall. However, as the owner of a Skyfold wall, you must assume
the basic cleaning responsibilities related to your Skyfold wall.
Warning
➢Unauthorized work will void the Skyfold warranty, as stated in the warranty
section of this owner’s manual.
Periodic servicing and inspection of certain components of the Skyfold wall must be
performed to ensure that its mechanical performance, acoustic properties and aesthetics
are prolonged and that it operates safely, as originally designed and installed. Contact your
authorized local Skyfold dealer for service as per the maintenance schedule outlined below.
PERIODIC MAINTENANCE
EVERY 500 CYCLES OR 1 YEAR
Wall Height Adjustment (Upper and Lower Limits)
Over time, the lifting cables may stretch. Consequently, the upper (open) position limit and the
lower (closed) position limit may need resetting.
➢The upper and lower limits must be veried, inspected and adjusted.
Warning
➢The Skyfold wall should automatically stop once it reaches either of these limits.
If it does not, do not operate the wall. Call your authorized local Skyfold dealer
for service.
Lifting Cables and Rigging Hardware
➢The lifting cables, drums, bearings, sheaves (pulleys), couplings, tie-os, and other rigging
hardware must be inspected for wear, alignment and t.
Lifting Motor Gearbox
➢Inspection of the lifting motor gearbox
Electromagnetic Brake
➢Inspection of the electromagnetic brake
EVERY 500 CYCLES OR 1 YEAR
Hydraulic Checking Device (Safety Motor)
The hydraulic checking device assembly includes a manifold, a reservoir, a pressure gauge, a
hydraulic motor, and a sprocket and chain. During normal operation, the gauge pressure should
be 0-100 psi (0-800 kPa) while the wall is ascending and 200-300 psi (15000-2000 kPa) while
the wall is descending.
➢The hydraulic checking device must be inspected, and its operating pressure veried.
MAINTENANCE
TABLE OF CONTENTS
SKYFOLD CLASSIC, ZENITH AND MIRAGE RETRACTABLE WALLS 20
MAINTENANCE
1 YEAR AFTER INSTALLATION
Electrical System
➢The entire electrical system must be tested, including the following: the control box, encoder,
over-torque sensor, lifting motor, electromagnetic brake, obstruction/infra-red sensor, end
seals, switches, and all plugs and cables.
Lifting Mechanisms
The lifting mechanisms require little maintenance over their 10,000-cycle life span.
➢The lifting mechanisms must be inspected for defects and abnormal wear.
EVERY 500 CYCLES OR 2 YEARS (STARTING ONE YEAR AFTER INSTALLATION)
Hydraulic Checking Device (Safety Motor)
➢The hydraulic oil must be visually inspected and, if necessary, changed.
EVERY 1000 CYCLES OR 2 YEARS (STARTING ONE YEAR AFTER INSTALLATION)
Electrical System
➢The entire electrical system must be tested, including the following: control box, encoder,
over-torque sensor, lifting motor, electromagnetic brake, obstruction/infra-red sensor, end
seals, switches, and all plugs and cables.
EVERY 1000 CYCLES OR 2 YEARS (STARTING ONE YEAR AFTER INSTALLATION)
Lifting Mechanisms
The lifting mechanisms require little maintenance over their 10,000-cycle life span.
➢The lifting mechanisms must be inspected for defects and abnormal wear.
EVERY 10 YEARS
Lifting Motor Gearbox
➢The gearbox lubricant must be changed.
Hydraulic Checking Device (Safety Motor)
➢The hydraulic oil must be changed.
This manual suits for next models
3
Table of contents
