MB 20N SERIAL No. 0001 TO CURRENT
MB 26 SERIAL No. 0001 TO CURRENT
WARNING
All personnel shall carefully read, understand and follow all safety rules and operating instructions
before operating or preforming maintenance on any UpRight aerial work platform.
SAFETY RULES
Safety Rules and Operating Instructions
Safety Rules and Operating Instructions
THIS MACHINE IS NOT
INSULATED.
Operation of this machine within 3 metres of
power lines or cables is
PROHIBITED .
PROHIBITED: Use of this machine without tting of the fall restraint to the person and anchor point and use of the
machine with the platform safety drop-bar in the raised position.
PROHIBITED: All persons, other than those in the platform, from approaching within 1 metre of the machine.
DO NOT operate this machine without rst having surveyed the work area for surface hazards such as holes, kerbs,
bumps and debris.
PROHIBITED: Platform working loads in excess of 215 kg , (max. 2 persons ).
DISTRIBUTE all loads evenly on the platform.
PROHIBITED: Fitting of such items as sign-boards, ags or ropes etc. to the cage or jib.
PROHIBITED:Operation of the machine without prior safety training , use by medically unt persons or by persons
who have not read and fully understood the operating instructions in this manual.
PROHIBITED: Driving of this machine on soft, uneven ground or on oors with a localised bearing capacity of less
than 15 kg/cm2 (213 psi).
PROHIBITED: Use of this machine in winds exceeding 27 mph (12.5 m/s - Beaufort Force 6)
PROHIBITED: Use of ladders or scaolding on the platform.
PROHIBITED: Attachment of overhanging loads; size increasing of the working platform; use of this machine as a
crane or for any other application involving additional loads or forces.
PROHIBITED: Any changes or modifactions to the operating or safety systems.
INSPECT the machine thoroughly for missing decals, cracked welds, loose hardware, hydraulic leaks, damaged cables,loose wire connections or wheel bolts. DO NOT use damaged equipment. (Contact UpRight Irl. Ltd. for instructions).
PROHIBITED: Climbing down any elevating assembly with the platform elevated.
PROHIBITED: Servicing while the platform is elevated unless rst blocking/supporting the elevating assembly.
PROHIBITED: Recharging of batteries near open ames or at a source of sparks.
PROHIBITED: Replacement of any component or part with anything other than original UpRight replacement parts
(unless specically agreed by the manufacturer.
PROHIBITED: Unattended storage (long or short term) of the machine with the Platform in the raised position or with
the Brakes disengaged.
PROHIBITED:Use, other than emmergency down functions, of the machine while the alarm sounds.
DO NOT operate the
mast or drive with the
platform elevated unless
on a rm and level
surface.
NEVER position the
platform without rst
checking for overhead
obstructions or other
hazards.
Sitting, standing or
climbing on the platform
rails is PROHIBITED .
Page 2
Introduction
SCOPE
This manual includes the procedures and
responsibilities for the inspection, transportation,
preparation and safe operation of the MB20N &MB26 Work Platforms. The Maintenance & Spare
Parts Manual covers preventative maintenance and
trouble-shooting. The term MB20/26 is used
throughout the text of this manual.
MB 2O/26 PURPOSE & LIMITATIONS
The purpose of this machine is to provide fast and
safe access to difficult-to-reach areas. The machine
may be used only on firm and level ground. Refer to
the Specifications section at the back of this
document for the machines parameter and access
limitations.
DO NOT use on soft ground or on slopes greater
than 2 degrees.
DO NOT use the lifting mechanism to raise or lower
goods or persons except within the cage and subject
to the weight limitations.
DO NOT enter the platform from a structure, rack or
other platform.
PLATFORM
The MB20/26 is a self propelled, fast acting aerial
work platform, designed to raise persons to a platform floor height of 6.00 m (~ 20 ft.). The accessible
height however is approximately 8.00 m. The platform upper payload limit is 215 kg. The unit offers the
ability to reach over obstacles but must be used on
firm and level ground. The platform is large enough
for two operators and has a free-draining perforated
floor with 150 mm toeboards. Hand-rails are constructed from aluminium alloy tubing and a safety
drop-bar is provided at the entrance. Safety harness
anchor points are also fitted in the floor of the platform.
UPPER CONTROL BOX
The upper control box or primary control box is fitted
to the front of the platform. It features a Joystick
which provides proportional control from zero to preprogrammed maximum for all functions including
drive and steer.
A safety Interlock Switch or deadman grip is
1.0
incorporated into the Joystick . It must be activated at
all times in order to operate any function. This feature
allows for one-handed operation. A complete
explanation of control functions can be found in the
section headed Operation.
LOWER CONTROL BOX
The lower control box or secondary control box is
fitted to the mast cover at arm level. It features a
deadman toggle switch and selector toggle switches
to provide pre-programmed speeds for all functions
except drive and steering. This control station is
used primarily for service-type operations including
pre-operation inspection. It should never be used to
position a manned or unmanned platform. It may be
used in the event of emergency, however, to lower
the manned platform.
ELEVATING ASSEMBLY
The platform is raised and lowered by a combination
of jib and telescoping mast actions. The main
hydraulic cylinder, mounted within the masts, lifts the
first mast directly. The other masts are connected by
a system of heavy duty plate chains and pulleys to
ensure sequential lifting. A parallel system of heavy
duty straps ensures that the masts descend in the
proper sequence and also ensures that any one mast
cannot be held in suspension by an obstacle during
descent.
The jib cylinder provides a lifting arc to the jib and
platform. All hydraulic functions are carried out using
remote solenoid-operated control valves. Each
cylinder features an integral holding valve to prevent
uncontrolled descent in the case of a hose burst.
ROTATION GEAR
The complete mast, jib and platform can be rotated to
provide up to 2.6 m (8.5 ft.) of working outreach. This
dimension is measured from the centreline of
rotation. Rotation is carried out by means of an
integral hydraulic motor driving a worm drive unit
about a heavy duty slewing gear.
MB20N/MB26
Page 1
Page 3
1.2
Introduction
DRIVE & STEER SYSTEM
An electronic controller, mounted in the chassis, is
pre-programmed to adjust the upper speed limits of
each individual function.
The controller limits the rotational speed of the
electric motor and oil pump, thereby limiting the
maximum oil flow rate.
The following functions are controlled and driven by
the electrohydraulic system:-
The following functions are gravity operated and are
determined by built-in flow orifices:-
Jib Descent
POWER SYSTEM
The power system (prime mover) incorporates four
6V batteries driving a 4kW electrohydraulic pump.
The pump drives all hydraulic cylinders and the
traction drive motors. A single multi-valve control
block divert oil pressure to the actuators. The oil flow
rate is limited by the pre-programmed speed setting
on the motor but is determined by the position of the
joystick in the Upper Control Box.
Page 2
MB20N/MB26
Page 4
Transportation
Machine Weights
Before transporting or lifting the MB20N/26 machine
be aware of its weight. It is very important to realise
that the centre of gravity of the stowed machine is
approximately 80 cm above ground and in the plane
of the energy chain which is located on the back of
the mast.
MB20N CE Version = 2554 kg
MB20N US Version = 3042 kg
(6708 lbs)
MB26 CE Version = 2413 kg
MB26 US Version = 2950 kg
( 6505 lbs)
In cases of particular difficulties with lifting or shipping
it is possible to remove the single block ballast from
the machine. Remove the 13 screws connecting the
ballast cover to the mast. Undo the 4 bolts connecting
the ballast to the mast and use a forklift to remove the
ballast block. The ballast block weighs 850 kg on the
CE version and 1300 kg on the US version. This
work may not be carried out without the written
permission of UpRight Ireland engineering
department. (Tel. 353 1 2024100).
1 Hoisting by Fork-Lift
2.0
Adjust the forks so that the minimum clearance
between them is 800mm as shown below.
Approach the machine from either side but place the
fork as close as possible to the front wheel as shown.
Never approach the MB20 from the front or rear
while fork lifting.
Use maximum forklift tilt as soon as possible when
raising the MB20/26.
If travelling over sloped or uneven ground it is
strongly recommended to temporarily tie the MB20 jib
mount structure to the forklift mast as a safety
precaution.
2 Hoisting By Crane
The MB20/26 may be lifted by an overhead hoist/
crane subject to the following strict procedure.
Raise the jib to clear the lifting straps as shown.
Use 4 No. separate lifting straps connected to a
spreader beam. DO NOT use a lesser number of
threaded straps as these could slip and lead to
instability. The recommended minimum capacity of
EACH of the 4 straps is 2 tonne and the minimum
length of each strap is 2 metres. Damage to the
covers and/or cage rails can occur if a spreader
beam is not deployed during a crane lift.
Apply the straps via 1 tonne shackles to each of the 4
lifting lugs on the chassis. See the figure below.
DO NOT apply lifting straps to any other part of the
machine.
FRONT
The MB20/26 may be lifted by forklift subject to the
following strict procedure.
Ensure that the mast and jib are fully stowed and that
the pothole bars are fully retracted (raised).
MB20N/MB26
Page 3
Page 5
2.6
Transportation
3 Transport By Truck
The MB20/26 can be carried on a suitably rated
transportation vehicle or trailer. Because of its high
gradeability, the machine can be driven under its own
power on to a standard loading ramp (Up to 14
degrees). It is recommended to reverse the machine
up on to the truck thus forward travelling down the
ramp at the delivery point. Winch-assisted loading is
allowable for larger slopes, however, operate the
trucks assist winch at minimum speed to avoid overpressurising the hydraulic system in the machine.
When the MB20/26 is on the truck or trailer it should
then be made secure by:-
1.Chocking the wheels.
2.Securing with adequate chains or straps
to the lifting lugs on the chassis.
To tow the vehicle or to winch it on to a truck it is
necessary to hydraulically bypass the control valves
and release these brakes.
Proceed as follows:Refer to the valve block drawing below.
1.Fully lower the jib boom and the mast sections.
Rotate the mast into the stowed position.
2.Turn the Upper Control Box to the OFF position
and remove the key.
3.Remove the rear GRP cover from the
chassis and locate the hydraulic control valve
block.
4.The hand valve marked A should be turned fully
clockwise to close. The hand valve marked B
should be turned fully anti-clockwise to open.
5.Operate the red handpump a number of times to
develop sufficient pressure to separate the
internal brake disks. These brakes are integral
with the hydraulic drive motors.
CAUTION
DO NOT loop straps through the cage, ladder or jib
as this could cause permanent structural damage
during transportation.
The machine can now be safely towed or winched.
A
B
HANDPUMP
Valve Block Towing Valves
Towing/Winching Valves
The failsafe brakes are automatically applied when
the machine comes to a stop or in the event of total
power loss due to low battery or malfunction of the
hydraulic drive system.
Page 4
WARNING
RISK OF SERIOUS INJURY. Releasing the brakes will
cause the machine to move uncontrollably on a
slope. Damaging momentum can be developed due
to the large mass of a slow moving machine.
MB20N/MB26
Page 6
Transportation
6. On completion of towing or winching, reverse the
position of the rotary hand valves A and B.
The handpump becomes inoperative when these
valves are returned to their normal position.
AFTER USE EACH DAY
1. Ensure that the platform (masts and jib) are
fully lowered.
2. Park the machine on firm and level ground,
never on a grass surface.
3. Turn the key switch to the OFF position and
remove.
4. Put the batteries on charge.
2.7
BATTERIES
1.Disconnect the batteries at the quick connect
plug and socket. This is located in the chassis
between the controller and the hydraulic tank.
2.Disconnect the battery leads and tape up the
lead terminals to ensure insulation.
3.Better battery life and efficiency is achieved if
the batteries are used consistently. It is therefore
recommended that the batteries are used
elsewhere if the machine is to be unused for an
extended period ( 2 weeks or more).
Long-Term Storage
PRESERVATION
1.Clean and touch up damaged paint surfaces.
2.Fill the hydraulic tank to operating level with theplatform fully lowered. Fluid should be visible
on the tank dip stick.
3.Coat exposed portions of cylinder rods with a
preservative such as multipurpose grease and
wrap with barrier material.
4.Coat all exposed unpainted metal surfaces with
a light oil or other preservative.
5.Cover the machine with tarpaulin if possible. If
this is not available it is advisable to cover the
mast and jib mount area as a minimum. This will
prevent moisture from entering the mast, battery
and chassis areas.
Battery Disconnect Located Behind Controller
WARNING
RISK of SERIOUS INJURY.
Take particular care when handling batteries. Acid
spills can cause severe burns or blindness. DO NOT
store batteries close to naked flames or close to steel
fabrication areas.
MB20N/MB26
Page 5
Page 7
NOTE
Vehicles fitted with the automated battery top-up
system with shut-off valve, top up the battery
cells with distilled water using the electrolyte fill
button, ensuring that the shut-off valve is open
during the fill and closed after use.
Page 8
or heavy scoring. Replace as necessary.
Page 9
TILT SENSOR
Safety Inspection
The pothole protection will begin to retract
immediately. However, full demand speed will not
be realised until the bars are fully raised. This
takes about 3 seconds. Check that the motion
alarm DOES sound during travel.
Check that the machine travels at maximum
speed while the speed selector is switched to
STANDARD DRIVE and that the machine travels
at a markedly less speed with the switch to
EXTRA TRACTION speed.
(The Extra Traction position is used for situations
where higher torque is demanded of the drive
system and where lower speed is acceptable
- such as ramp loading etc.)
Locate the key switch on the left side of the
Upper Control Station. See the photo below. By
simultaneously turning the key to the position
marked Emergency OverRide it should
now be possible to lower the mast, lower the jib
and slew the mast only.
12. MACHINE TRAVEL - UNELEVATED
Travel functions are possible only from the
platform Upper Control Station. As with all such
controls, the deadman handgrip switch must be
depressed before any function can operate.
Joystick
Deadman Grip
Check that the thumb operated switches on the
top of the joystick operates the front wheel
steering.
13. CHECK MACHINE TRAVEL - ELEVATED
While the masts are raised, it is possible to
drive and steer the machine at a much reduced
CREEP SPEED. Also note that while the
masts are raised, the pothole protection bars
should be fully extended and should remain
extended during creep speed motion of the
machine.
WARNING
The issue of reduced speed while elevated and
deployment of the pothole protection bars is
crucial to the safe operation of this machine.
The machine may not be released or operated
unless these functions operate properly.
Select Drive Functions on the top left toggle
switch. Pushing back and forward on the
joystick moves the machine backwards and
forwards respectively.
MB20N/BM26
14. FINAL PREPARATION
Configure the masts and jib to the stowed
position. Replace all machine covers and
secure. The machine is now ready for
Operation or Transportation.
See the appropiate sections in this manual.
Page 8
Page 10
3.2
Operation
Controls and Indicators
The pre-operation safety checks should be carried
out prior to operation. These checks are detailed in
the previous section. Operators who follow these
guidelines will become familiar with the controls and
indicators on the machine.
This section summarises the controls and indicators
in tabular form and provides more detailed
information.
WARNINGWARNING
WARNING
WARNINGWARNING
DO NOT operate the machine from the upper controls
until the platform entrance drop-bar is in the fully
lowered position and your safety harness has been
fitted and attached.
2
3
1
7
4
Upper Control Box & Console
9
10
6
5
MB20NMB26
8
1
Page 9
Page 11
Operation
Table 1: Controls and Indicators
Upper Control Console
ITEM NAME FUNCTION
Withdraw key from ‘Platform’ position on the Lower
1
MAIN KEY
SWITCH
Console. Insert key into Upper Console. Turn
anticlockwise to the ‘ON’ position for normal power.
Turn to the centre position for power ‘Off’, and to
remove the key. Hold in clockwise position to
activate ‘Emergency Override’ for safety descent.
2
3
4
5
6
LIFT/DRIVE
SELECTOR
LIFT
FUNCTION
SELECTOR
JOYSTICK
DEADMAN
SWITCH
TRACTION
SWITCH
Select either the Lift function or the Drive
function.
Select whichever lift function is required
before using the joystick. The decal shows
logical functions and direction i.e.
Mast, Jib or Slew
Grip the red ‘Deadman’ button (item 5) on the
joystick continuously. Refer to the decal logic
diagrams for correct direction of motion.
e.g. If Drive is preselected - pushing forward
moves machine forward. If Lift is preselected
- pushing forward lifts the mast, lifts the jib or
slews the platform to the right.
The red ‘Deadman’ grip button on the joystick
must be grasped for any function to operate.
Having preselected the Drive function with item 2,
selecting Standard Drive allows maximum travel
speed on level ground.
Selecting Extra Traction allows extra wheel drive
traction for climbing slopes. A consequence of extra
traction is reduced speed range.
10
7
8
9
EMMERGENCY
STOP
HORN
BUTTON
BATTERY
CONDITION L.E.D.
HOUR METER
Push this red button at any time to isolate power.
Turn clockwise to reset.
Use to warn by-standers or to attract attention.
Indicates the battery charge condition. Green band
for fully charged. Orange band for partially
discharged. Red band means the batteries are 80%
discharged and must be put on charge immediately.
Page 10
Records the accumulated hours worked.
MB20N/MB26
Page 12
3.3
Operation
1
3
4
2
Table 2 : Controls and Indicators
Lower Control Console
ITEM NAME FUNCTION
Turn key to ‘Off’ position and remove - dissables the
MAIN SELECTOR
1
2
3
SWITCH
EMMERGENCY
STOP
MAST
TOGGLE
machine.
Turn key to ‘Platform’ position and remove - enables
Upper Controls and disables Lower Controls.
Turn and hold key to the ‘Chassis’ position - enables
electrical power to Lower Control switches only.
Push this red button at any time to isolate power.
Turn clockwise to reset.
Raise the masts by holding switch in up
position. Lower the mast by holding in down
position.
5
4
5
MB20NMB26
JIB
TOGGLE
SLEW
TOGGLE
Raise the jib by holding switch in up position.
Lower the jib by holding in down position.
Slew the platform to the right by holding switch in
up position. Slew to the left by holding in down
position.
Page 11
Page 13
Operation
ELEVATING & LOWERING THE
WORK PLATFORM
Before operating the MB20 Work Platform it is
imperative that the pre-operation Safety Inspection has been completed and any deficiencies
have been corrected. The operator must also be
fully trained in the use of this machine.
Before beginning any operation, the following checks
should be carried out.
WARNINGWARNING
WARNING
WARNINGWARNING
ENSURE that no other persons are within 1
metre of the machine. Be aware of the pothole
protection bar hazard on both sides of the
machine.
LOOK up and around for obstructions before
performing the lift or drive functions.
DO NOT overload the platform.
DO NOT operate within 3 metres of any
electrical power cables.
THIS WORK PLATFORM IS NOT INSULATED.
TRAVEL WITH WORK PLATFORM
LOWERED
Refer to Tables 1 & 2 for controls and indicators
1.Verify that both Lower and Upper Control
Console Emergency Stop Button is in
the ‘ON’ position (turn clockwise to reset).
2.Climb into the Platform and check that
the Keyswitch is turned to the ‘ON’ position and
that the Drive/Lift Selector switch is positioned at
DRIVE FUNCTION. Ensure that the drop bar is
in position.
3.Check that the route is clear of persons,
obstructions, pot holes or ledges and is capable
of supporting the wheel loads. Also, check that
the clearances above, below, and to the side of
the Work Platform are sufficient.
4.To steer the MB20/26, activate the Deadman
Switch while pushing the ‘Rocker’ ThumbSwitch, on top of the Joystick, LEFT or RIGHT
to turn the wheels. Observe the tires while
manoeuvring to ensure proper direction.
NOTE:Steering is not self-centering. The
wheels must be returned to the straight ahead
position by operating the Steering Switch.
NOTE: Chassis controls are for service use only. Do
not leave a second ( spare) key in the Lower Console. Use of a single key ensures full machine control by the person in the platform.
1.Enter the Platform through the entrance at the
rear of the MB20/26 and ensure that the drop bar
is in position. Raise and lock the entry step by
means of the pedal in the platform.
2.Before using the machine all local Safety
Regulations involving helmets and restraining
devices should be observed. Safety harness
lanyards, not exceeding 1 metre in length,
should be attached to anchor points in cage floor.
3.Ensure that the ‘ON/OFF/OVERRIDE’ switch on
the Upper Control Box is turned to the ‘ON’
position and both emergency stop buttons are off
(twist clockwise if necesary).
4.Check the green battery indicator band L.E.D. is
illuminated. If not, the battery may need recharg
ing.
5.Check if the audible alarm sounds due to unlevel
ground. None of the functions can work if the
machine is not level.
TRAVEL WITH WORK PLATFORM
ELEVATED
Refer to Tables 1 & 2 for controls and indicators
CAUTIONCAUTION
CAUTION
CAUTIONCAUTION
If the machine stops driving and the Tilt Alarm
sounds, lower the Platform immediately.
Using the Emergency Override functions, move the
machine to a level location before re-elevating the
Platform.
Travel with platform elevated ONLY on firm and level
surfaces.
NOTE:
The Work Platform will travel at reduced speed when in
the elevated position.
Page 12
MB20N/MB26
Page 14
Operation
1.Check that the route is clear of persons,
obstructions, pot holes or ledges and is
capable of supporting the wheel loads. Also,
check that the clearances above, below and
to the side of the Work Platform are sufficient .
2.Ensure that the pothole guards
ex tended (down) position during elevated
travel.
remain in the
EMERGENCY SITUATIONS
in any emergency situation, the immediate action is
to push the red “Emergency Stop” button . This will
instantly cut of all electrical power to the controls.
The button must be twisted in a clockwise direction
in order to recommence control. However, the switch
should be reset only when it is safe to do so.
If the Audible warning alarm sounds, normal control
functions will cease to operate. This will be due to
the following problem ;
zz
zThe Tilt Sensor has been activated
zz
In this situation the procedure is to turn the Platform
“ON/OFF/OVERRIDE” Keyswitch to the
‘EMERGENCY OVERRIDE’ position. Hold in this
position while using the Mast and/or Jib boom down
controls as normal. Do not begin to slew (rotate)
until close to the ground.
chassis rear cover and locating the screw type valve
on the underside of the valve bloc. Turning the knob
clockwise allows the jib to descend slowy.
CAUTIONCAUTION
CAUTION
CAUTIONCAUTION
During manual emergency lowering, extreme
care must be taken to ensure that the person
carrying out the task is not struck by the jib or platform
structure.
Turn
wheels to
right.
Use 7/8”
socket &
extension
as shown.
MANUAL ROTATION
Note that during emergency operation, controls will
operate only at a fixed, slow speed and will not allow
the raising of the Booms. The Booms can only be
lowered.
Emergency Lowering (by hand)
Should the machine become inoperable when
elevated request a person on the ground to lower the
platform using the emergency lowering valves.
Lower the mast structure before lowering the jib/
platform structure.
Locate the red lever behind the mast cover
inspection door on the left hand side of the machine.
By pulling on the lever, the mast will descend fully
under gravity. Releasing the spring-loaded lever will
cease this operation immediately if required.
Lower the masts fully before lowering the jib
structure.
The Jib may be manually lowered by removing the
1.Lower the masts and jib fully before manually
slewing the assembly. Press the Emergency
Stop Button to prevent inadvertant powered
motion.
2.Locate the opening behind the front right drive
wheel. Apply a 7/8 inch socket wrench with
extension bar to the shaft and turn to rotate the
elevating assembly. (Turning the wheel fully to
one side will facilitate this operation)