Molift Quick Raiser 2+ User manual

-a patientlifter from
TECHNICAL MANUAL
TM04301 Molift Quick Raiser 2+ 09 English

Page 2 of 24 TM04301 Molift Quick Raiser 2+ 09 English - Rev B 01/2011
Contents
General advice ....................................................... 3
Explanation of symbols ................................... 3
Safety regulations ............................................ 3
Liability .............................................................. 3
Technical description ......................................... 4
Chassis ............................................................. 4
Lifting column ................................................... 5
Service ...................................................................... 6
Service .............................................................. 6
Troubleshooting ............................................... 6
Equipment and special tools ........................... 7
Equipment ........................................................ 7
Special tools ..................................................... 7
Replacement of parts ........................................ 7
Lifting motor, removing ................................... 7
Lifting motor, tting .......................................... 7
Wheels, removing and tting ......................... 8
Replacing the electronics ............................... 8
Replacing the contact points in the lifting
column ............................................................. 9
Replacing the contact points in the chassis 9
Replacing the column wiper-brushes ........... 9
Faults in the lifting column .............................. 9
Completing the job ............................................ 10
Safety checks ................................................. 10
Logging ........................................................... 10
Inspection Diagram after Service and
Repair .......................................................................11
Service: ............................................................11
Safety Inspection ............................................11
Parts catalogue ................................................... 12
Molift Quick Raiser 1 09 ............................... 12
Main Components ......................................... 13
Appendix A ............................................................ 14
Chassis w/ legs .............................................. 15
Appendix B ............................................................ 16
Lifting column ..................................................17
Handle QR/QR2/QR2+ ..................................17
Appendix C ............................................................ 18
Cover with electronics QR2 ......................... 19
Appendix D ............................................................ 20
Battery holder ................................................. 21
Appendix E ............................................................ 22
Knee support complete ................................. 22
Appendix F ............................................................ 23
Electrical Diagram ......................................... 23
IMPORTANT!
The patient lifter is only meant to be used by
qualied personnel.
The manual shall not be handed over, or made
available to, any unauthorised third party, wit-
hout a prior written consent from Molift Group
AS. Existing laws, conventions and agreements
protects all documents. No extract of this do-
cumentation can be reproduced, used or trans-
ferred without prior written consent from Molift
Group AS. Violation of these regulations may
lead to judicial repercussions and economic
responsibility. Industrial rights are reserved.
Molift Group AS
Ole Deviksvei 44
0668 OSLO, Norway
Teleph: ([phone] www.molift.com
Fax: [phone] [email protected]

Page 3 of 24
General advice
This technical manual contains important informa-
tion about the lifter, including safety instructions.
It is therefore essential to read it carefully before
using and repairing the patient lifter.
Explanation of symbols
Locations in diagrams are referred as follows:
A
1
A1 refers to Appendix A, position 1.
This symbol appears in the user manual next
to all the information which concerns safety
in the work-place and the risk of injury. Always
follow these instructions carefully, paying due
attention and caution.
This symbol indicates important information
regarding the correct use of the equipment
as described in this technical manual. If this
information is not taken into account, mal-
function or damage to the equipment may
result.
This symbol draws your attention to especi-
ally useful information, which could help the
user of this equipment to work more effici-
ently. This information may simplify procedu-
res or clarify complications.
Safety regulations
Heavy, long and/or sharp objects will have to be
lifted and handled when repairing the lifter. When
assembling and removing parts, the lifter’s stabi-
lity may be aected with the risk of it overturning
or falling over.
You are therefore advised to be attentive and
careful!
Liability
Please read these operating instructions care-
fully before putting the product into opera-
tion. We assume no liability for damage or mal-
functions resulting from failure to comply with
the instructions. Warranty claims must be made
immediately on detecting the defect. Remember
to quote the serial number. Consumable parts are
not subject to the warranty.
All technical information, data and instructions
for operation contained in these operating
instructions were up-to-date at time of print and
are compiled on the basis of our experience and
to the best of our knowledge. We reserve the right
to incorporate technical modications within
the scope of further development of the product
described in this manual. No claims can be derived
from the information, illustrations or descriptions
contained in these instructions. We assume no lia-
bility for any damage or malfunction caused by
operating errors, non-compliance with these ope-
rating instructions or inappropriate maintenance.
We expressly point out that only genuine Molift
Group AS spare parts and accessories approved
by us may be used. For safety reasons, the tting
and use of spare parts or accessories, which have
not been approved, and unauthorised modi-
cation or conversion of the product, are not per-
mitted. Molift Group AS will accept no liability for
damages resulting from such acts.
With the exclusion of product liability, Molift Group
AS is liable for faults or omissions on its part within
the scope of the warranty obligations stated in the
purchase contract. Claims for damages are exclu-
ded, irrespective of the legal reason from which
such claims are derived. Only documentation
belonging to the actual equipment is valid.
Any failure to comply with the safety regulations
and precautionary measures stated in these ope-
rating instructions renders the declaration of con-
formity supplied with the system in accordance
with Council Directive (93/42/EEC) concerning
medical devices invalid.

Page 4 of 24 TM04301 Molift Quick Raiser 2+ 09 English - Rev B 01/2011
Do not activate the emergency stop with your
foot. This could damage the emergency stop
switch!
Battery lamp and service indicator
On the right side of the chassis, in front of the
emergency stop button, there are two LED (Light
Emitting Diodes). One Service lamp which indica-
tes when the lifter needs service (see Chapter on
Service on page 8). The other LED is a Battery Lamp
which lights up when the battery voltage drops
below 12.2 volts. The diode will normally give
no light, and will only light up when the battery
needs charging.
Wheels
The lifter has three types of wheel. None requires
lubrication:
Front wheels on the legs
There are 2 Ø50 mm wheels on each leg. The
wheels are mounted to the chassis with a screw
stud.
Back wheels
One wheel on each side, diameter 115mm. These
wheels are tted to the chassis with stud screws.
They can be locked by a push-button.
Support wheels
One central wheel on each side of the lifter, diame-
ter 100mm. These wheels are tted to the chassis
with straight-through screws.
Technical description
Chassis
The chassis consists of a steel-tube and steel-plate
frame with a polyester seal, including legs. The
side housings are constructed in vacuum-moul-
ded ABS.
The chassis consists of:
• Motor with mounting plate and coupling
• Motor control card (PCB)
• Contacts for battery power
• Contact switch for manual control
• Emergency stop
• Charging indicator
• Wheels
• Side housings
Motor with mounting plate and coupling
Motor with worm gear (12 V DC) mounted inside
the chassis. The coupling between the motor and
column is engaged when the red arrow on the
lower part of the column is in line with the upper
part of the chassis. The motor must not be lubrica-
ted after leaving the factory.
Motor control
The motor control (electronic) has integrated
overload protection, which will cut the power in
the event of overloading. The overload protection
stops the motor with a vertical load of approxi-
mately 160 kg, which corresponds to a user weight
of 200 kg.
Hand control
The contact switch for hand control unit is of the
DIN type with special cables. This is located on the
back of the right side housings.
Emergency stop
The emergency stop, which is located on the top
right side on the chassis, cuts the power supply
to the motor. The button is pushed straight down
to activate the emergency stop and is released by
turning it clockwise.
Emergency stop
Service lamp
(green light)
Battery lamp
(no light)

Page 5 of 24
Lifting column
The lifting column consists of:
• Aluminium section
• Column brushes
• Linear ball screw
• Ball nut (with integral ball bearings)
• Trolley
• Bearing race
• Motor coupling
• Contact for battery current
• Aluminium battery holder
• Fastening knob with lock-screw
The motor transfers power to the ball screw via
the motor coupling. A ball nut runs along the ball
screw. The trolley is attached to this ball nut, and
the lifting arm is attaced to the trolley. When the
motor turns the ball screw via the coupling, the
ball screw moves the ball nut plus trolley upwards
or downwards. There are tracks in the aluminium
section for the wheels on the trolley to follow. The
ball screw is factory-lubricated and requires no
further lubrication. It is protected from dirt by two
column wiper-brushes.
Battery holder and batteries
The battery pack is placed in a special alumi-
nium holder on the lifting column. See also the
instructions for the charger. Only use original
Molift Batteries for Molift lifters.
Operating handle
The height of the operating handle (which con-
sists of a curved steel tube) can be adjusted by
means of a special bolt and knob so as to suit dif-
ferent users.
Hand control
The hand control has two buttons, for operating
the lifter ‘up’ and ‘down’. There is also a LED light
which indicates when the batteries needs char-
ging. If the diode lights up when the lifter is being
operated, the battery needs charging. But there
will still be sucient remaining battery capacity
for 1-3 normal lifts of 75 kg and there will always
be sucient remaining current for lowering the
patient.