CaterWil GTS3 User manual

Caterwil LLC www.caterwil.com instruction version 2.0.7 from 05.07.2021

Caterwil LLC www.caterwil.com instruction version 2.0.7 from 05.07.2021
Contents
1. General information ....................................................................................4
1.1. General description .................................................................................4
1.2. Product purpose.......................................................................................4
1.3. Application area .......................................................................................5
1.4. Service ......................................................................................................5
2. Safety............................................................................................................6
2.1. Meaning of symbols ........................................................................6
2.2. General information on rules and safety.........................................6
2.3. Safety requirements for the operation of the wheelchair.................7
2.4. Safety rules for maintaining the wheelchair in working order.
Maintenance and disposal............................................................................13
2.5. Requirements for the user............................................................14
2.6. Safety features...............................................................................14
3. Product description ...................................................................................15
4. Transportation and preparation of the Product for use ..........................18
4.1. Delivery set.....................................................................................18
4.2. Start of operation...........................................................................20
5. Transport and storage...............................................................................21
5.1. Preparing for transportation .........................................................21
5.2. Storage ...........................................................................................22
6. Service........................................................................................................23
6.1. Adjustment options........................................................................23
6.1.1. Adjusting the wheelchair backrest ...........................................23
6.1.2. Armrest height adjustment .......................................................24
6.1.3. Headrest height adjustment.....................................................25
6.1.4. Adjusting the position of the remote control ...........................25
6.1.5. Adjusting the footrest................................................................27
7. Control........................................................................................................29
7.1. Remote controller..........................................................................29
7.1.1. Standard remote controller ......................................................29
7.1.2 Remote controller with LCD display ........................................32
7.2. Drive range.....................................................................................37
7.3. Switching on and off......................................................................37
7.4. Wheelchair movement ..................................................................38
7.5. Wheelchair movement in the pushing mode...............................39
7.6. Batteries specifications.................................................................40
7.7. Charging.........................................................................................42
7.8. Battery charger ..............................................................................43
8. Movement modes......................................................................................44
8.1. Movement “On tracks”..................................................................44
8.2. Movement on wheelchair GTS 4WD.............................................46
9. Additional options......................................................................................47
10. Safety features ......................................................................................52
11. Fault and troubleshooting.....................................................................53
12. Maintenance, cleaning and disinfection..............................................57
12.1. Drive wheel service .......................................................................58
12.2. Steering wheel service ..................................................................58
12.3. Tensioning the tracks....................................................................59
12.4. Chain lubrication ...........................................................................59

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12.5. Cleaning .........................................................................................60
13. Legal Notice ...........................................................................................61
13.1. Service life......................................................................................61
13.2. Responsibility.................................................................................61
13.3. Warranty conditions.......................................................................61
13.4. Warranty obligations......................................................................62
14. Warranty card ........................................................................................63

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1. General information
1.1. General description
This operating instruction offers the user and attendant all the necessary
information about the design, operation and maintenance of the electric
stair-climbing wheelchair Caterwil GTS (Product) manufactured by
Caterwil LLC (Manufacturer). The instructions contain information that
must ensure the safe operation of the Product, as well as help identify
the causes of possible malfunctions and solve them. The information
provided in this instruction is necessary for understanding, since the
electric wheelchair belongs to technically complex products and its
incorrect operation can affect the safety of either the user, or the people
around him. Particular attention should be focused on the chapter
"Safety".
1.2. Product purpose
The Product is designed for persons with disabilities, have problems with
the musculoskeletal system, central nervous system dysfunction and
other diseases that limit a person's ability to move independently. The
Product is also recommended for patients undergoing rehabilitation
after surgery and various traumas. To expand the functionality of the
Product, the Manufacturer provides a number of additional options, one
of which allows attendant persons to drive the wheelchair. Any use of
the Product beyond the scope of this instruction is considered as
improper use. In this case, the user is responsible for injuries, physical
and property damage. Before using the Product, the user must read the
instructions for the wheelchair in detail, as well as be instructed.

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1.3. Application area
The electric wheelchair can be used with partial or full loss of motor
functions of the human body due to:
paralysis;
limbs amputations (leg(s) amputation(s));
limbs defects or deformities;
contracture or joint damage;
other diseases.
The Product is designed primarily for patients who can move
independently using wheelchair.
When assembling individually, the following features should be
considered:
height and weight;
physical and mental condition;
user age;
living conditions;
ambient conditions.
1.4. Service
Only qualified personnel instructed by the Manufacturer carry out
maintenance and repair of the Products. In case of problems, please
contact the specialist who selected the Product for you.
If you have any questions or problems with the Product beyond the
scope of this operating instruction, please contact the Manufacturer's
service center (see the address on the last page of the instructions)
The Manufacturer makes effort to provide any assistance to its clients so
that they remain satisfied with this Product for a long time.

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2. Safety
2.1. Meaning of symbols
Warnings about possible risk of accident or serious injury.
Warnings about possible risk of accident or injury.
Warnings about possible technical damage.
Instructions for servicing the Product. Instructions for service personnel.
2.2. General information on rules and safety
Risk of accident or injury due to non-observance of the safety
instructions. All safety items are described in the manual must be
performed. The operating instructions must always be available to the
user.
Risk of accident or injury due to improper use of the Product. The
Product should only be used for its intended purpose. The Product can
be operated only after instruction.
Risk of burns when handling fire. Although the seat and back cushions
of the Products are made of fire-resistant material, they may catch fire.
Take extra care when handling fire. Do not smoke or light cigarettes near
the Product.
The Product can be equipped with additional options offered by the
Manufacturer only. The additional options can be installed either
independently, if allowed by the instructions, or at the Manufacturer, if
the installation requires the replacement of standard units with
modernized ones.

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2.3. Safety requirements for the operation of the wheelchair
Risk of accident or injury due to defective safety devices. Before each
use, the user has to check operative condition of the Product, especially
the safety device.
Operation of the Product is only possible if all safety devices, such as an
automatic brake, are functional. Defective brakes can cause serious
injuries with fatal outcome.
Risk of accidents due to operating the wheelchair without experience.
Movement in the wheelchair without sufficient experience can lead to
falls and other dangerous situations. Before using the Product, it is
necessary to practice on a flat and spacious ground.
Risk of accidents due to uncontrolled movement of the Product.
Faults arising during the operation of the Product can cause uncontrolled
movements. In this case, you should immediately contact the
Manufacturer. If you find faults and problems with the product, it is
necessary to stop using it, as this can be dangerous both for the user and
for the people around.
Risk of accident or injury due to improper sit in the chair or leave it.
Turn off the Product when sit in the chair or leave it. The footrests can
only be used to support the legs. Do not stand on the footrests!
Overload damage. The maximum passenger weight is limited to the
values given in the technical specifications of the Product (see 3,
table. 1).
Tire damage. High air pressure in tires can damage them. Do not exceed
the recommended tire pressure (see 12).
The system will generate an error of the speed sensor if you start to
move in idle mode of geared motors (see 7.5).
Damage caused by overheating of the wheelchair or exposure to low
temperatures. The Product functions normally only in a temperature
range of -15 °C to +40 °C. Do not use the wheelchair outside this
temperature range.
Risk of overturning Products using lifting platforms. Turn off the
Product when using lifting platforms or lifts and when traveling on buses
or trains.

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After each emergency stop, turn off and turn on the Product control
device. In case of errors, the system informs with a light code (see 11,
table 6) or shows a fault message on the display, stopping the execution
of uncontrolled functions. If, after restarting the control system, the
Product displays an error again, the user can unlock the electromagnetic
brakes of the wheelchair to transfer it in pushing mode (by attendant
person). If it is not possible to ensure the movement of the wheelchair
by muscular strength, or to ask for help from others, the Product can be
controlled in "manual mode" (the control system must not be de-
energized). Driving in "manual mode" ignores the sensor values and
allows you to reach your destination, despite the blocking of the motors.
However, certain faults may damage the Product.Evaluate the risks and
use this mode only in situations where no alternative solutions to
problems. After the appearance of such faults, contact the Manufacturer
for specialist consultation.
Risk of accident or injury due to incorrect lifting of the wheelchair.
Attendant persons should only lift the wheelchair using special handles
(fig. 2.1) or the front frame beam. Do not lift the wheelchair by the
footrest or armrest!
Fig. 2.1. Handles for transport

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Risk of injury if the wheelchair overturning while driving.
The Product can overcome slopes with an angle less than 15° (24 %) in
the "On wheels" mode (see fig. 2.5). Moving at angle of more than 15°
(24 %) is not allowed!
The Product is equipped with a track platform for climbing stairs with
angle of up to 35°, maximum step height —180 mm. The Product is not
intended for use on spiral stairs.
Risk of accidents due to the Product overturning while in movement.
When the Product moves slope, the speed should be reduced (for
example, put into 1st gear). On descent and climbs, it is forbidden to
overcome obstacles, leave and sit in a chair. Overcoming obstacles,
descents and climbs is allowed only with the vertical position of the
backrest.
Overcoming obstacles such as steps and curbs is possible only on tracks.
In this case, the obstacle should be perpendicular to the direction of
movement.
The movement on the stairs can be performed only by orienting the
Product in front of the descent (fig. 2.6). Descending the stairs only
forward. Climb stairs only backwards. In "on tracks" mode, the system
will automatically maintain the horizontal position of the chair by tilting
it back.
Driving on ramps on wheels is possible only at an inclination angle of
no more than 15 degrees. If this angle is exceeded, the wheelchair
should be moved on the tracks with its back to the incline. For stability
when lifting, you can tilt the chair position within 14 degrees.

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Fig. 2.2. Schematic image of wheelchair overcoming obstacle of the «step»type on the tracks
Fig. 2.3. Schematic image of wheelchair overcoming single obstacle on the tracks

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Fig. 2.4. Schematic image of wheelchair overcoming single obstacle on the wheels
Fig. 2.5. Maximum angles of climb and despent of Products at movement on wheels

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Fig. 2.6. Schematic image of the direction of movement of the wheelchair on the stairs
Fig. 2.7. Visual demonstration of the safety angle of stair slope

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2.4. Safety rules for maintaining the wheelchair in working
order. Maintenance and disposal
Risk of accident or injury due to improper maintenance, repair or
adjustment of the Product. Maintenance of the Product maintenance
must be performed by qualified personnel instructed by the
manufacturer.
Battery replacement and charger. The battery should only be replaced
by a qualified specialist. The battery must be charged exclusively with
the battery charger included in the kit with the Product.
Damage to electronic equipment due to water penetration. Never use a
water jet or high-pressure cleaning apparatus for cleaning the
wheelchair! Do not allow water to enter electronic equipment, motors
and batteries.
The operability of all systems of the product systems must be checked
once a year by a technician.
Defective batteries are disposed of in accordance with local
environmental regulations

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2.5. Requirements for the user
Risk of accident or injury due to unprofessional use of the Product.
Products operation should only trust a competent user. Therefore, the
user, and if necessary attendant persons, must be instructed either by
the Manufacturer or by persons authorized by the Manufacturer.
The user must read the operating instruction of the product and
understand the information contained therein.
Operation of the Product under excessive fatigue, under the influence of
alcohol or medications is not allowed!
The user should not suffer from mental disorders influencing the ability
to navigate in space when operating Product.
2.6. Safety features
In case of danger, the Product can be turned off at any time using the
"on / off" button.
When the button is pressed, the Product is immediately decelerated and
all electrical functions are disabled.
In case of faults (e.g., there is not power supply to the brake), they are
immediately identified by the software, then an emergency braking of
the Product occurs or the speed decreases. At the same time, a warning
beep sounds and the error message is displayed.

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3. Product description
The Product is designed for use in everyday life and empowering people
who have partially or completely lost the function of the musculoskeletal
system. The presence of the track platform and an automatic seat
deflection system allows the user to independently overcoming stairs
and curbs.
The Product is wheelchair based on two combined platforms - wheeled
and tracked. Wheels are used to move on flat ground, and track platform
is needed to climb stairs, curbs and other obstacles. The track platform is
activated using the control panel.
To control the Product, the Manufacturer has developed its own control
system. Depending on the model and individual wishes of the user, the
Product can be completed with a conventional remote controller, as well
as a remote controller with LCD display. The difference between the
remote controllers is the amount of information available to the user.
Any control panel displays information about the actual status of the
wheelchair: the selected mode, the selected maximum speed and
battery charge. In case of error, the control panel displays it with a code
light signal or message on the LCD display.
The control system allows you to customize the control system according
to the user's needs. The list of settings includes: setting the sensitivity of
the joystick, maximum speed, seat tilt in a limited range ("on wheels"
mode), as well as turning on and off the headlights.

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Table 1. Specifications of GTS Series Products
Characteristic
GTS3
GTS3
Export
GTS4
Lux
GTS5
GTS 4WD
Notes
Dimensions in working
state, mm (LхWхH)
(1020-1400)x650x1230
(1020-
1400)х650х
1400
(1020-1400)x650x1230
Length depends on legrest position
Dimensions in folded
state, mm (LхWхH)
1020х650х780
1020х650х
1400
1020х650х
780
920х650х750
The GTS4 Lux cannot be folded down for
transport
Seat height, mm
560
Seat width, mm
450
520
450
Seat depth, mm
450
500
450
Seat back height, mm
530
650
530
Armrest height, mm
150–300
Adjustable
Lower leg length, mm
380–540
Adjustable
Weight (with accumulator
batteries), kg
115
98
114
98
Max load capacity, kg
100
115
100
115
Front wheel size, mm
200
100
For the GTS 4WD, the diameter of the additional
wheels is specified for the rear-wheel drive
mode.
Drive wheel size, mm
320
355
Max speed on wheels, km/h
7
8
7
Max speed on tracks, km/h
0,7
0,8
Max mileage in mode "on
wheels", km
18
25
For GTS 4WD, mileage is indicated in rear-wheel
drive mode
Max mileage in mode "on
tracks", steps
600
900
50 % descent/50 % climb
Max stairs angle, deg
35
At step height 150 mm,
step rounding radius 10 mm
Max step height, mm
180
At stair angle 25 deg,
step rounding radius 10 mm
Max step rounding radius, mm
20
At stair angle 25 deg

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Characteristic
GTS3
GTS3
Export
GTS4
Lux
GTS5
GTS 4WD
Notes
Noise level, dBA
≤75
Operating temperature, °C
-15 …+40
Battery capacity, A*h
33
42
Battery type
AGM
Lithium
Drive motors voltage, V
24
Charger power requirements, V
220
Nominal charging current, A
5
Wheelchair protective system
IP54
Lighting equipment
None
Front and rear lights
Front wheel type
Foamed core
Pneumatic
Rear wheel type
Foamed core
Pneumatic
Speed sensor
—
—
Set
Seat back angle adjustment
Mechanical
Electric
Mechanical
Legrest angle adjustment
Mechanical
Electric
Mechanical

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4. Transportation and preparation of the Product for
use
4.1. Delivery set
All options included in delivery set depend on the model of the
wheelchair.
Delivery set included:
Electric stair-climbing wheelchair GTS series with main
components
Charger;
Operating instructions;
Options (see chapter 9).
The dealer delivers the Product in a ready-to-use condition. Individual
adjustments for a particular user must be carried out independently
before starting operation. The functions of individual components can be
checked using the instructions given in chapter 6. Chapter 11 contains
description of possible fault of the wheelchair.

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Fig. 4.1. Wheelchair front view:
1—headrest;
2—seat;
3—remote controller;
4—armrest;
5—legrest
Fig. 4.2. Wheelchair back view:
6—assistants handle;
7—pocket;
8—battery module

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4.2. Start of operation
Before using the Product, it is necessary to check the presence of all
items included in the standard set (see fig. 4.1, 4.2), estimate their
functional readiness and serviceability.
Before turning on the wheelchair, you must turn on the automatic switch
(fig. 4.3). The automatic switch turns off the wheelchair in case of short
circuit of overload. To turn on the wheelchair, you must turn the
automatic switch to the working position.
Make sure the emergency stop button is pressed (see fig. 7.1). If the
button is off, press it to activate the power of the wheelchair. Press the
power button on the remote control.
The wheelchair is ready for use in one second. The wheelchair is in safe
mode after starting until the drive mode is not selected ("on wheels" or
"on tracks").
Fig. 4.3. Automatic switch