MAHA Twin Series User manual

D1 5002BA1-GB01
Twin Scissors Lift
Twin F 3.0 A
Twin F 3.0 U
for vehicles up to 3,000 kg gross weight
Operation Manual
English

Twin F 3.0 A / Twin F 3.0 U
D1 5002BA1-GB01
EDITION
1st edition 2004-05-25
D1 5002BA1-GB01
©MAHA GMBH&CO.KG
All rights reserved. Any reproductions of this document, partial or complete, are only allowed
with prior consent of MAHA GmbH & Co. KG.
All rights reserved in cases of patent granting or registration of design.
The contents of this edition have been checked with great care. However, errors cannot be fully
excluded. Please contact MAHA should you find errors of any kind.
These instructions are intended for users with previous knowledge in the field of automotive
vehicle service lifts.
Subject to technical change without notice.
MANUFACTURER
MAHA Maschinenbau Haldenwang GmbH & Co. KG
Hoyen 20
D-87490 Haldenwang/Allgäu
Telephone: 08374 / 585-0
Telefax: 08374 / 585-499
Internet: http://www.maha.de
e-mail: [e-mail]
SERVICE
MAHA Maschinenbau Haldenwang GmbH & Co. KG
- Service Dept. -
Hoyen 20
D-87490 Haldenwang/Allgäu
Hotline: 08374 / 585 + extension
260 for brake testers, test lanes
280 for lifting technology
290 for performance testers, exhaust and air conditioning service equipment
Service: 08374 / 585-110 to -113, -115
Telefax: 08374 / 585-491

TWIN F 3.0 A / TWIN F 3.0 U
D1 5002BA1-GB01 I
DECLARATION OF WARRANTY AND LIMITATION OF LIABILITY
The manufactures has paid proper attention to the preparation of this manual.
However, nothing contained herein modifies or alters, in any way, the terms and
conditions of manufacturer agreement by which this lift was acquired, nor increase, in
any way, MAHA’s liability to the customer.
TO THE READER
Every effort has been made to ensure that the information contained in this manual is
correct, complete and up-to date. The manifacturer is not liable for any mistakes made
when drawing up this manual and reserves the right to make any changes due the
development of the product, at any time.

TWIN F 3.0 A / TWIN F 3.0 U
D1 5002BA1-GB01II

TWIN F 3.0 A / TWIN F 3.0 U
D1 5002BA1-GB01 III
PRINTING CHARACTERS AND SYMBOLS
Throughout this manual, the following symbols and printing characters are used to
facilitate reading:
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Indicates the operations which need proper care
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Indicates prohibition
!
!!
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Indicates a possibility of danger for the operators

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Indicates the direction of access for motor vehicles to the lift
BOLD TYPE Important information
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WARNING: BEFORE OPERATING THE LIFT AND CARRYNG OUT ANY
ADJUSTMENT,READ CAREFULLY CHAPTER 7“INSTALLATION”WHERE ALL
PROPER OPERATIONS FOR A BETTER FUNCTIONING OF THE LIFT ARE SHOWN

TWIN F 3.0 A / TWIN F 3.0 U
D1 5002BA1-GB01IV

TWIN F 3.0 A / TWIN F 3.0 U
D1 5002BA1-GB01 V
CONTENTS
1 CHAPTER 1 – GENERAL INFORMATION 1
2 CHAPTER 2 – PRODUCT IDENTIFICATION 3
3 CHAPTER 3 - PACKING, TRANSPORT AND STORAGE 5
4 CHAPTER 4 - PRODUCT DESCRIPTION 7
5 CHAPTER 5 - TECHNICAL SPECIFICATION 13
6 CHAPTER 6 - SAFETY 19
7 CHAPTER 7 - INSTALLATION 25
8 CHAPTER 8 - OPERATION AND USE 33
9 CHAPTER 9 - MAINTENANCE 37
10 CHAPTER 10 - TROUBLESHOOTING 39

TWIN F 3.0 A / TWIN F 3.0 U
D1 5002BA1-GB01VI

TWIN F 3.0 A / TWIN F 3.0 U
D1 5002BA1-GB01 VII
INDEX OF FIGURES
Figure 1 – PACKAGE AND HANDLING........................................................................ 6
Figure 2 - LIFT ............................................................................................................... 9
Figure 3 – CONTROL DESK ....................................................................................... 11
Figure 4 – LAYOUT ..................................................................................................... 13
Figure 5 – HYDRAULIC GROUP................................................................................. 15
Figure 6 – HYDRAULIC PLAN .................................................................................... 17
Figure 7 – WIRING DIAGRAM..................................................................................... 18
Figure 8 – SAFETY AREA........................................................................................... 19
Figure 9 – CRUSHING RISKS..................................................................................... 20
Figure 10 – BUMPING RISKS ..................................................................................... 21
Figure 11 – RISKS OF VEHICLE FALLING ................................................................ 21
Figure 12 - SLIPPING RISK ........................................................................................ 22
Figure 13 - OBSERVANCE OF TECHNICAL SPECIFICATIONS ............................... 22
Figure 14 - RISKS FOR UNAUTHORISED USES....................................................... 23
Figure 15 - SAFETY BLOCK....................................................................................... 25
Figure 16 - HYDRAULIC PIPES CONNECTION ......................................................... 27
Figure 17 - ELECTRICAL SYSTEM CONNECTION ................................................... 28
Figure 18 - FIXING ON THE GROUND ....................................................................... 29
Figure 19 - ADJUSTMENT OF MAXIMUM WORKING HEIGHT LIMIT SWITCH ....... 31
Figure 20 - ADJUSTMENT OF SAFETY HEIGH LIMIT SWITCH................................ 31
Figure 21 - ADJUSTMENT OF PLATFORM AUTOLEVELLING LIMIT SWITCHES .. 32
Figure 22 – MANUAL AND EMERGENCY LOWERING ............................................. 34

TWIN F 3.0 A / TWIN F 3.0 U
D1 5002BA1-GB01VIII

TWIN F 3.0 A / TWIN F 3.0 U
D1 5002BA1-GB01 1
1 CHAPTER 1 – GENERAL INFORMATION
This chapter contains warning instructions to operate the lift properly and prevent injury
to operators or objects.
THIS MANUAL HAS BEEN WRITTEN TO BE USED BY SHOP TECHNICIANS IN CHARGE OF THE LIFT
(OPERATOR)AND ROUTINE MAINTENANCE TECHNICIAN (MAINTENANCE OPERATOR).
THE OPERATING INSTRUCTIONS ARE CONSIDERED TO BE AN INTEGRAL PART OF THE MACHINE
AND MUST REMAIN WITH IT FOR ITS WHOLE USEFUL LIFE.READ EVERY SECTION OF THIS MANUAL
CAREFULLY BEFORE OPERATING THE LIFT AND UNPACKING IT SINCE IT GIVES HELPFUL
INFORMATION ABOUT:
-SAFETY OF PEOPLE
-SAFETY OF THE LIFT
-SAFETY OF LIFTED VEHICLES
THE COMPANY IS NOT LIABLE FOR POSSIBLE PROBLEMS,DAMAGE,ACCIDENTS,ETC.RESULTING
FROM FAILURE TO FOLLOW THE INSTRUCTIONS CONTAINED IN THIS MANUAL.
Only skilled technicians of AUTHORISED DEALERS or SERVICE CENTRES
AUTHORISED by the manufacturer shall be allowed to carry out lifting, transport,
assembling, installation, adjustment, calibration, settings, extraordinary maintenance,
repairs, overhauling and dismantling of the lift.
THE MANUFACTURER IS NOT RESPONSIBLE FOR POSSIBLE DAMAGE TO PEOPLE,VEHICLES OR
OBJECTS IF SAID OPERATIONS ARE CARRIED OUT BY UNAUTHORISED PERSONNEL OR THE LIFT IS
IMPROPERLY USED.
ANY USE OF THE MACHINE MADE BY OPERATORS WHO ARE NOT FAMILIAR WITH THE
INSTRUCTIONS AND PROCEDURES CONTAINED HEREIN SHALL BE FORBIDDEN.
1.1 Manual keeping
For a proper use of this manual, the following is recommended:
a) keep the manual near the lift, in an easily accessible place
b) keep the manual in an area protected from the damp
c) use this manual properly without damaging it
d) do not make changes to the manual; any changes and updating can be made
only by the manufacturer.
This manual is an integral part of the lift: it shall be given to the new owner if and when
the lift is resold.

TWIN F 3.0 A / TWIN F 3.0 U
D1 5002BA1-GB012
1.2 Obligation in case of malfunction
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IN CASE OF MACHINE MALFUNCTION,FOLLOW THE INSTRUCTIONS CONTAINED
IN THE FOLLOWING CHAPTERS
1.3 Cautions for the safety of the operator
Operators must not be under the influence of sedatives, drugs or alcohol when
operating the machine.
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BEFORE OPERATING THE LIFT,OPERATORS MUST BE FAMILIAR WITH THE
POSITION AND FUNCTION OF ALL CONTROLS,AS WELL AS WITH THE MACHINE
FEATURES SHOWN IN THE CHAPTER “OPERATION AND USE”.
1.4 Warnings
!
!!
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UNAUTHORISED CHANGES AND/OR MODIFICATIONS TO THE MACHINE RELIEVE
THE MANUFACTURER OF ANY LIABILITY FOR POSSIBLE DAMAGES TO OBJECTS
OR PEOPLE.DO NOT REMOVE OR MAKE INOPERATIVE THE SAFETY DEVICES,
THIS WOULD CAUSE A VIOLATION OF SAFETY AT WORK LAWS AND
REGULATIONS.
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ANY OTHER USE WHICH DIFFERS FROM THAT PROVIDED FOR BY THE
MANUFACTURER OF THE MACHINE IS STRICTLY FORBIDDEN
!
!!
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THE USE OF NON GENUINE PARTS MAY CAUSE DAMAGE TO PEOPLE OR
OBJECTS.
The lift has been designed and built as required by:
European Directives: 89/392 EEC, 93/44 EEC, 93/68 EEC
TECHNICAL RULES:
European rules: EN 291/1992, EN 292/1992
ELECTRICAL SYSTEM:
Italian rules: UNI 9584, UNI EN 60204 CEI/8

TWIN F 3.0 A / TWIN F 3.0 U
D1 5002BA1-GB01 3
2 CHAPTER 2 – PRODUCT IDENTIFICATION
The identification data of the machine are shown in the label placed on the frame and
indicated in the declaration of conformity.
TYPE CAPACITY
SERIAL NUMBER YEAR
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USE THE ABOVE DATA BOTH TO ORDER SPARE PARTS AND WHEN GETTING IN
TOUCH WITH THE MANUFACTURER (INQUIRY). THE REMOVAL OF THIS LABEL IS
STRICTLY FORBIDDEN.
Machines may be updated or slightly modified from an aesthetic point of view and, as a
consequence, may present different features from these shown, this without prejudicing
what has been described herein.
2.1 Warranty Certificate
The warranty is valid for a period of 12 months starting from the date of the purchase
invoice.
The warranty will come immediately to an end when unauthorised modifications to the
machine or parts of it are carried out.
The presence of defects in workmanship must be verified by the Manufacturer’s
personnel in charge .
2.2 Technical servicing
For all servicing and maintenance operations not specified or shown in these
instructions, contact your Dealer where the machine has been bought or the
Manufacturer’s Commercial Department.

TWIN F 3.0 A / TWIN F 3.0 U
D1 5002BA1-GB014

TWIN F 3.0 A / TWIN F 3.0 U
D1 5002BA1-GB01 5
3 CHAPTER 3 - PACKING, TRANSPORT AND STORAGE
ONLY SKILLED PERSONNEL WHO ARE FAMILIAR WITH THE LIFT AND THIS MANUAL SHALL BE
ALLOWED TO CARRY OUT PACKING,LIFTING,HANDLING,TRANSPORT AND UNPACKING
OPERATIONS.
3.1 Packing
The lift is supplied disassembled into sub-assemblies depending on the model ordered.
The model on-floor installation:
•No. 2 base units, each one with a platform and hydraulic cylinders
•No. 1 control box equipped with hydraulic unit
•No. 1 box containing hydraulic lines, connecting cables, four rubber blocks,
stickers and technical documentation
•No. 4 drive-on ramps (2 front and 2 rear ramps) equipped with protective
devices to connect platforms
The model in-ground installation:
•No. 2 base units, each one with a platform and hydraulic cylinders
•No. 1 control box equipped with hydraulic unit
•No. 1 box containing hydraulic lines, connection cables, four rubber brackets,
40 mm high, stickers and technical documentation
•No. 2 holes covers
If requested, optional accessories are available to satisfy each customer’s requirements
(Ref. accessories manual and price lists).
The lift is packed in a single box on a wooden bed, wrapped up in non-scratch
waterproof material and sealed with 2 straps.
The average of the package is 850 kg.

TWIN F 3.0 A / TWIN F 3.0 U
D1 5002BA1-GB016
3.2 Lifting and handling
When loading/unloading or transporting the equipment to the site, be sure to use
suitable loading (e.g. cranes, trucks) and hoisting means. Be sure also to hoist and
transport the components securely so that they cannot drop, taking into consideration
the package’s size, weight and centre of gravity and it’s fragile parts.
(Ref. Figure 1)
Figure 1 – PACKAGE AND HANDLING
!
!!
!
HOIST AND HANDLE ONLY ONE PACKAGE AT A TIME
3.3 Storage and stacking of packages
Packages must be stored in a covered place, out of direct sunlight and in low humidity,
at a temperature between -10°C and +40°C.
Stacking is not recommended: the package’s narrow base, as well as its considerable
weight and size make it difficult and hazardous.
Should this be necessary, never stack more than three packages a time and fix them
with straps, ropes or other suitable means to be sure they are firm.
3.4 Delivery and check of packages
When the lift is delivered, check for possible damages due to transport and storage;
verify that what is specified in the manufacturer’s confirmation of order is included. In
case of damage in transit, the customer must immediately inform the carrier of the
problem.
Packages must be opened paying attention not to cause damage to people (keep a
safe distance when opening straps) and parts of the lift (be careful the objects do not
drop from the package when opening).

TWIN F 3.0 A / TWIN F 3.0 U
D1 5002BA1-GB01 7
4 CHAPTER 4 - PRODUCT DESCRIPTION
4.1 LIFT
(Ref. Figure 2)
All models have been designed to lift motor-vehicles and make them stand at any level
between the minimum and maximum height.
The maximum lifting weight, including any additional load on the vehicle, is 3000 kg
(29400N).
All mechanical frames, such as platforms, extensions, base frames and arms have
been built in pressure bent plant to make the frame stiff and strong while keeping a low
weight.
The electrohydraulic operation is described in detail in chapter 8.
This chapter describes the lift showing the principal elements, so allowing the user to
be familiar with the machine.

TWIN F 3.0 A / TWIN F 3.0 U
D1 5002BA1-GB018
As shown in figure 2, the lifts are composed of two platforms, the platform 1 (1) and the
platform 2 (2) anchored to the ground by means of two base frames (3).
The lift is equipped with drive-up (4) and drive-down (5) ramps, placed at both ends, for
easy access of the vehicle which is lifted by placing the vehicle frame on four rubber
pads (6).
Platforms are linked to the base frame by means of a double scissors lifting system.
Platforms, 1540 mm long, can reach a length of 2100 mm with two extractable
extensions (7) to allow longer wheel base vehicles to be lifted.
The lifting system of each platform is composed of four arms, two lower (8) and two
upper (9) arms, as well as a pair of cylinders, one primary (10) and one secondary
cylinder (11).
Motion is transmitted from the cylinder to the arms through a lever system (12) .
Lift lowering and lifting are carried out by means of a control box (13) (fixed to the
ground) placed next to the lift.
A proximity switch (14) is installed inside the platform 1 scissors to stop the lift at a
height of 400 mm. A proximity switch (15) is installed inside the platform 2 scissors to
stop the lift at the maximum height.
Proximity switches (16) are placed at the base of platforms 1 and 2 to level the
platforms automatically.

TWIN F 3.0 A / TWIN F 3.0 U
D1 5002BA1-GB01 9
Figure 2 - LIFT

TWIN F 3.0 A / TWIN F 3.0 U
D1 5002BA1-GB0110
4.2 CONTROL DESK
(Ref. Figure 3)
The Control desk is composed of a frame (1) covered with panels (2) and a top panel
(3).
The control panel is placed on the front of the top panel and is equipped with:
•UP button (5)
•DOWN button (6)
•SAFETY BUTTON for lowering last 400mm (7)
•Emergency push button (8)
•Pilot lamp (9)
•Horn/signalling light (10)
The main switch (11), lift identification plates (12) and safety indicating labels are
placed on the side of the head.
The limit switch override button (13) is placed inside the control desk, under the electric
panel and on the printed circuit board, the oil discharge button (19).
The main hydraulic unit (14) and the connectors (15) are included in the lower part.
The hydraulic unit (14) is composed of the oil tank (16), the hydraulic pump the electric
motor (17) , the solenoid valves (18) and a series of hydraulic hoses.