AGM ASCENSION PROTEGE 5442F Series User manual

PRODUCT MANUAL
ASCENSION PROTEGE
WHEELCHAIR LIFT
5442F MODEL SERIES
Patented – see ascension-lift.com/patents
By Philip Brobeck at 7:12 am, Dec 21, 2018

ASCENSION PROTEGE
WHEELCHAIR LIFT
5442F MODEL SERIES
PRODUCT MANUAL

Copyright © 2018 Ascension, a Division of AGM, Tucson, Arizona
This document, or parts thereof, may not be reproduced in any form, by any method, for
any purpose, without written permission from Ascension.

TABLE OF CONTENTS
INTRODUCTION ............................................................................................................. 1
About This Manual ....................................................................................................... 1
Additional Information .................................................................................................. 2
Getting Help ................................................................................................................. 2
Contacting Ascension .................................................................................................. 2
SECTION 1 General .................................................................................................... 3
1.1 Product Information ............................................................................................ 3
1.2 Terminology ....................................................................................................... 4
1.3 Important Safety Information .............................................................................. 5
1.4 Description of Operation .................................................................................... 6
SECTION 2 Operation ................................................................................................. 7
2.1 Standard Operation ............................................................................................ 7
2.2 Manual Operation ............................................................................................... 7
SECTION 3 Routine Maintenance ............................................................................... 9
SECTION 4 Mechanical Disassembly and Repair ..................................................... 10
4.1 Important Preliminary Information .................................................................... 10
4.2 Electrically Isolating the Lift .............................................................................. 10
4.3 Removing the Sheet Metal Skins ..................................................................... 11
4.4 Operating Station ............................................................................................. 12
4.5 On/Off Switch ................................................................................................... 13
4.6 Upper Stop Sensor ........................................................................................... 13
4.7 Lower Terminal Switch ..................................................................................... 15
4.8 Upper Platform Gate Switch ............................................................................. 16
4.9 Gate Interlock Switch ....................................................................................... 17
4.10 Hydraulic Valves ........................................................................................... 19
4.11 Windows ....................................................................................................... 21
4.12 Platform Floor Removal ................................................................................ 22
4.13 Gate Closer Adjustment ................................................................................ 24
4.14 Safety Pan Switches ..................................................................................... 28
4.15 Safety Pan Removal ..................................................................................... 30

SECTION 5 Electrical Testing .................................................................................... 32
5.1 Access to the Electrical Panel .......................................................................... 35
5.2 Testing the Switches ........................................................................................ 36
5.3 Testing the Smart Relay ................................................................................... 37
5.4 Testing the Power Supply ................................................................................ 38
5.5 Testing the Power Relays ................................................................................ 38
SECTION 6 Troubleshooting ...................................................................................... 40

Product Manual Introduction
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INTRODUCTION
This manual, along with the Installation Guide, is to be retained by the lift installer.
The purpose of this manual is to provide the necessary information to perform
maintenance and repairs on the Ascension PROTEGE wheelchair lift. This manual is
intended to be used by skilled technicians who have experience working on electro-
mechanical systems and devices. Furthermore, these personnel should be well-versed
in standard industrial safety practices and procedures. The appropriate sections should
be read through completely before any repairs are begun.
About This Manual
This manual is divided into six sections:
Section 1 contains general information and definition of terms that are used throughout
the remainder of this manual.
Section 2 covers operation of the lift.
Section 3 describes routine maintenance to be performed on the lift.
Section 4 covers mechanical repair. This includes component replacement, as well as
detailed procedures to disassemble, test, and reassemble major components.
Section 5 covers electrical testing.
Section 6 is a troubleshooting guide. It provides information for locating and correcting
any problems with the lift.

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Additional Information
Refer to the Owner’s Manual for instructions on routine maintenance and manual
operation, and for general safety precautions. Refer to the Installation Guide for
instructions on installing the lift. Refer to the detailed electrical schematic that was
included with the lift to perform additional electrical troubleshooting beyond what is
covered in this manual.
Getting Help
If you have a question or problem with the lift, please try to find the solution in this
manual. In particular, be sure to review the troubleshooting guide in Section 6. If you
are not able to resolve the problem, please contact Ascension as indicated below,
making sure that you have the serial number of your lift ready. The serial number can
be found on the data plate located inside the platform on the upper right rail. Also, it is
recommended that you contact Ascension while in the immediate vicinity of your lift, as
this will reduce the time required to properly diagnose the problem.
Contacting Ascension
Ascension's business hours are 8 a.m. to 5 p.m. Mountain Standard Time, Monday
through Friday.
Telephone: [phone] Mailing Address: Ascension
Fax: [phone] Customer Service
Email: [email protected] PO Box 40020
Website: ascension-lift.com Tucson, AZ 85717-0020

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SECTION 1 General
1.1 Product Information
Operational
 VERTICAL TRAVEL DISTANCE: 4" to 42"
 OCCUPANCY: 1 person
 MAXIMUM PASSENGER LOAD: 900 pounds1
 AVERAGE SPEED: 5 feet per minute
Physical
 INTERIOR DIMENSIONS: 36" wide x 48" high x 54" long (5442F model series)
36" wide x 48" high x 58" long (5442FG model series)
 MATERIALS: Platform, base frame, lifting device: Mild steel
Platform sheet metal, safety pans: Aluminum alloy
Windows: High impact strength clear thermoplastic
 FINISH: Platform: Powder coat
Lift base: Galvanized steel
 ELECTRICAL: 120 VAC, 60 Hz, Single Phase, 13 Amps
1 900 pounds where allowed by code, 750 pounds otherwise. See lift data plate for actual ratings.

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1.2 Terminology
To effectively use this manual, you need to be familiar with the following terms. Refer to
the figure on the following page for identification of components. Not all components
are shown in the figure.
Access Panel The hinged panels (four total) that provide access to the machinery
cabinets.
Back End The end of the lift where the upper platform gate is located.
Base The steel frame that rests on the floor when the casters are removed and
supports the operating mechanism.
Control Panel The electrical panel for the lift which contains the power supply, control
system relay, and the main power relay. The control panel is located inside the right-
hand machinery cabinet.
Dock Plate The hinged plate that bridges the gap between the platform floor and the
upper landing surface when the platform is at the upper landing.
Front End The end of the lift where the lower platform gate is located.
Lower Platform Gate The gate that serves the lower landing (ground level).
Machinery Cabinet The enclosures in which the lifting and control mechanisms are
located. There is one (1) cabinet on each side of the lift. The contents of the machinery
cabinets are accessible through the access panels.
Operating Stations The controls for raising and lowering the platform. The operating
station inside the platform has an emergency stop switch. The operating stations
outside the platform may be remotely mounted.
Platform The compartment in which the passenger rides.
Skins The sheet metal panels that enclose the operating machinery in the platform.
Upper Landing The stage, platform, or riser that the lift serves.
Upper Platform Gate The gate that serves the upper landing, or stage. The lift may
have an upper landing gate mounted to the upper landing sill that replaces the upper
platform gate.

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1.3 Important Safety Information
When using the lift, the following basic safety precautions and practices must be
observed:
 Read and understand all of the information contained in this manual.
 Do not overload the lift. The lifting capacity is stated on the lift’s data plate.
 Operate the lift only as described in Section 2 of this manual.
 Use the lift for movement of people only.
 Always close and lock all access panels and remove all keys before leaving the lift
unattended.
 Do not expose any part of the lift to a direct liquid stream or spray, such as a water
hose. This could create an electrical shock or fire hazard.
 Do not operate the lift in the presence of combustible or explosive gas or fumes.
The electrical components of the lift could cause ignition of these chemicals.

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1.4 Description of Operation
Two hydraulic cylinders raise and lower the platform. When the "Up" circuit is
energized, an electric motor operates a hydraulic pump which provides pressurized
hydraulic fluid to the cylinders, causing the cylinder rods to extend and raise the
platform. When the "Down" circuit is energized, a hydraulic valve is shifted so that the
fluid flows in the opposite direction through the hydraulic circuit and the platform is
lowered.
A gate at each end of the lift permits passengers to enter and leave the platform. The
lower platform gate will open only when the platform is lowered all the way. The upper
platform gate can be fully opened only when the platform is at the upper landing. Both
gates are self-closing.
The motion of the platform is controlled by any of the three (3) operating switches
located either in the platform or remotely mounted. These are constant-pressure type
switches, so that when a switch is released the platform stops. It takes approximately
40 seconds for the platform to move through its full range of 42 inches. These switches
are interlocked so that while a switch is activated, pressing another switch in the
opposite direction will not cause the lift to stop; the original action will continue.
The lift is equipped with an under-platform safety pan that will halt all downward motion
of the platform if it encounters an obstruction as it descends. If this occurs, the platform
can be operated upward to allow for the removal of the obstruction. The under-platform
safety pan completely covers the bottom and side edges of the platform.
The lift is equipped with a hand pump that can be used to raise or lower the platform in
an emergency, or when the casters are being put under the platform and power is not
available. The hand pump is located in the right-hand machinery cabinet.
The electrical control panel is located inside the right-hand machinery cabinet. This
panel includes the power supply, control system relay, and main power relay.

Product Manual SECTION 2
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SECTION 2 Operation
2.1 Standard Operation
 Both gates must be closed for the lift to operate.
 On/Off switch in right machinery cabinet must be set to ‘ON’ for lift to operate. This
switch may be set to “OFF” to prevent unwanted movement of lift.
 Move the platform by using any of the three (3) operating switches. The operating
switches must be held with constant pressure until the platform stops at the upper or
lower landing. Releasing a switch will immediately stop the platform.
 Push the emergency stop button to activate it. Push again to deactivate.
 If the platform is at the lower landing and the lower landing gate interlock prevents
the gate from being opened, hold an operating switch "Down" to disengage the
interlock.
 The under-platform safety pan will halt all downward motion if it encounters an
obstruction as it descends. If this occurs, the platform can be operated upward to
allow removal of the obstruction.
2.2 Manual Operation
The hydraulic hand pump can be used to move the platform manually when facility
power is unavailable. It may be operated from either the inner or the outer access panel
of the right-hand machinery cabinet.
Instructions for use:
1. Locate the 12" long hand pump handle stored just inside the outer access panel on
the right-hand machinery cabinet and remove it from its bracket.
2. Swivel the pump linkage outward and then insert the hand pump handle into it.
WARNING!
Only use the handle provided with the pump. If this handle does not
provide enough leverage to move the platform, immediately stop pumping
and contact a repair technician.

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Figure 2
3. To move the platform upward, pump the handle. Please note that the hydraulic
power unit is attached with flexible mounts to minimize noise and vibration, and
that it is normal for the unit to move around significantly when pumped by hand.
4. To move the platform downward, pump the handle while depressing the black
valve button located beside the hand pump.

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SECTION 3 Routine Maintenance
The owning facility is responsible for the proper maintenance of the lift. The following
checks must be performed every six (6) months:
1. Verify the operation of the lift per Section 2.
2. Verify that the platform will not operate with either gate open.
3. Verify that the emergency stop switch halts the movement of the platform.
4. Verify that the lower platform gate interlock engages before the platform has moved
more than 2" from the lower landing. For lifts that include the optional upper landing
gate, verify that the upper landing gate interlock engages before the platform has
moved more than 2" from the upper landing.
5. Verify that pushing upward on the under-platform safety pan halts the downward
movement of the platform.
6. Verify that the hydraulic fluid in the reservoir (inside the right, outside access panel)
is between the minimum and maximum levels when the platform is at the lower
landing. If you need to add hydraulic fluid to the lift, use an ISO 32 grade hydraulic
oil such as Texaco Rando HD32 or 76 Unax AW32 filtered to 10 microns for lifts
installed indoors. For outdoor lifts use a low-temperature ISO 15 grade hydraulic oil.
In order to add fluid to the reservoir, remove the reservoir cap located just above the
min-max marks on the reservoir and use a funnel and rubber hose to add the
hydraulic fluid.

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SECTION 4 Mechanical Disassembly and Repair
4.1 Important Preliminary Information
The repairs in this section are to be performed by a skilled technician who has
experience working on electro-mechanical systems. Furthermore, the technician should
be well-versed in standard industrial safety practices and procedures. In the United
States of America, electrical safety procedures are established in OSHA's
Lockout/Tagout – Hazardous Energy Sources Standard (29 CFR 1910.147).
Familiarity with the setup and operation of the lift is required to effectively perform the
repairs listed in this section. This information can be found in the Owner’s Manual
provided with the lift.
4.2 Electrically Isolating the Lift
To electrically isolate the lift, use the electrical disconnect installed with the lift.

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4.3 Removing the Sheet Metal Skins
For some of the repairs described in this manual, it is necessary to gain access to the
inner components of the lift beyond what is possible with the sheet metal "skins" still on
the lift. The figure below shows the skins and their positions.
All of the skins are attached to the frame with screws that can be removed with a
Phillips screwdriver. In addition, it may be necessary to first remove the grab bar or a
window before removing some of the skins. To remove the grab bar, remove the
Phillips head screws that secure it to the lift. To remove a window, refer to Section
4.11.

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4.4 Operating Station
The operating stations house the UP/DOWN rocker switches and, on the station inside
the platform, the emergency stop button. To test or remove either of these switches,
use a Phillips screwdriver to remove the two (2) screws that secure the switch plate to
the platform and pull the plate away from the platform. A standard multi-meter can be
used to test the switches.
To remove the rocker switch, depress the mounting tabs and push the switch out of its
mounting cutout.
To remove the emergency stop button, use the release lever on the contact block to
disengage the block from the back of the operator then pull it off. Remove the mounting
nut to free the operator from the switch plate.

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4.5 On/Off Switch
The On/Off rocker switch may be set to ‘OFF’ to prevent operation of the lift at the
owner’s discretion. The lift will only operate when the switch is set to ‘ON.’
The On/Off rocker switch is located in the right side machinery cabinet across from the
motor. To remove it, remove the (2) screws fastening the sheet metal switch mounting
bracket to the lift frame and snap the switch out of the bracket.
4.6 Upper Stop Sensor
The upper stop sensor sets the height at which the platform stops at the upper landing.
This section describes the procedures for adjusting the upper stop sensor in the case
that it has come out of adjustment. If you are only looking for instructions on setting up
the lift to stop at the correct height, refer to the Installation Guide.

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The optical beam must always pass through the area marked with the yellow decal,
shown in the figure above. The following procedure can be used if the optical sensor is
misaligned:
1. Remove the outer left sheet metal skin to gain access to the height sensor.
2. To adjust vertical alignment, loosen the two (2) screws holding the sensor bracket to
the frame and shift the sensor bracket until the beam passes through the area
marked with the yellow decal.
3. To correct horizontal alignment, gently bend the sensor bracket until the beam
passes through the area marked with the yellow decal.
The platform should stop when the optical beam strikes the lower edge of the optical
reflector. If the platform does not stop correctly, it may be necessary to adjust the gain
on the optical sensor so that the platform stops when the beam strikes the optical
reflector. The gain is a small black dial on the back of the sensor (see the figure on the
previous page) that can be adjusted with a small standard screwdriver.