HSS Hire MI TOWER STAIRS Troubleshooting guide

Operating & Safety Guide 332
332 / 01
versatile MiTower One-Person
Quick Build Tower for construction
site and maintenance applications.
MI TOWER
MOBILE ACCESS TOWER
332_MI TOWER_12/06/2019

CONTENTS
CONTENTS 1
INTRODUCTION 2
KNOW YOUR MITOWER COMPONENTS3
SAFETY DOS AND DON’TS - ALWAYS 5
SAFETY DOS AND DON’TS - NEVER6
BEFORE YOU START7
8
GETTING STARTED
9
MI TOWER - ASSEMBLY
10
KNOW YOUR MI TOWER
11
KNOW YOUR KIT LIST AND SPECIFICATIONS
12
KNOW YOUR STORAGE AND TRANSPORT PACK
MITOWER 4M - ASSEMBLY12
MI TOWER+ ASSEMBLY 17
KNOW YOUR MI TOWER+ 18
KNOW YOUR KIT LIST AND SPECIFICATIONS 19
KNOW YOUR STORAGE AND TRANSPORT PACK 20
MITOWER+ 4M - ASSEMBLY21
MI TOWER STAIRS ASSEMBLY 25
26
KNOW YOUR MI TOWER STAIRS
27
KNOW YOUR KIT LIST AND SPECIFICATIONS
28
KNOW YOUR STORAGE AND TRANSPORT PACK
29
MITOWER STAIRS 2.2M & 4.2M - ASSEMBLY
31
MITOWER STAIRS 2.7M & 4.7M - ASSEMBLY
10 POINT PRE-USE SAFETY CHECKLIST 34
332_MI TOWER_12/06/2019

INTRODUCTION
The MI TOWER family is a versatile and high quality tower providing a work platform for one person (MI
TOWER & MI TOWER STAIRS) or up to two persons (MI TOWER+). It is designed in accordance with the
latest testing and quality standards.
Our priority is to help ensure the safe operation of our products, so please pay particular attention to the
safety tips on pages 7 and 8.
We want you to enjoy the safe and responsible use of the MiTOWER family of products with the minimum
of fuss and this guide is designed to get you up and running as quickly and as safely as possible.
It is essential you read this guide prior to assembling and using your tower.
Visit PASMA and HSE for further reference.
Page 2
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KNOW YOUR MI TOWER COMPONENTS
Page 3
1 GUARDRAIL BRACE PANEL
jaw which is released by simply moving the jaw’s trigger. The claw must only be
attached to the frame with the opening facing outward. Attachment with the
jaw’s opening facing inward will not fully protect the user if lent upon and may
cause serious injury or death. Always ensure that each claw is positively locked in
position before using your tower.
2 FRAME CLIPS
The frame clip’s pin locates into a retaining hole in the frames to lock tower
sections together when placed one on top of the other. The pin is locked in place
by a red tab to ensure that it remains in place. From the disengaged position,
pivot the pin / tab to bring the pin horizontal. Insert the pin fully through the
3 STABILISER COUPLER CLAMP
tube and set the buckle on to the hook, then close the clamp arm to lock the
The coupler clamps are used to secure the stabilisers to the tower’s vertical
4 WIND-LOCK CATCH
Disengaged Engaged
Component
Hanger
Lock
Release
Retract
Extend
The wind lock catches comprise of a set of auto-engaging hooks at one end
of the platform and a single gravity type catch at the other. The purpose of
these devices is to prevent up-lift of the platforms in windy conditions. To
engage the auto wind lock (AWL) simply tilt the platform at the angle shown
before placing the hooks onto the rung of the end frame. Lower the
opposite end of the platform onto the opposite end frame rung and the
gravity type lock will automatically engage. Simply lift and hold the gravity
lock before tilting the platform to dis-engage the opposite AWL hooks when
removing the platform on tower disassembly.
To enable one man to erect MI TOWER products, each hatch is fitted with four
component hangers which are stowed (two either side) within the platform’s
frame. The hangers can be extended when needed and retracted when not.
To extend and lock a hanger, take hold of the hanger stop end and pull from
the frame. Once the stop rivet is clear of the slot, turn the hanger 45 degrees
anticlockwise then gently slide back in until it stops. To retract the hanger,
simply reverse the procedure.
5 PLATFORM WITH BUILT IN COMPONENT HANGERS
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KNOW YOUR MITOWER COMPONENTS
Page 4
8 ADJUSTABLE LEG WITH RUBBER FOOT
The adjustable leg with rubber foot allows for secure positioning of
your Mi TOWER STAIRS in relation to your workplace. The leg can
be extended or retracted to allow for levelling and the rubber foot
prevents slipping.
9 WALK-THROUGH GATE FRAME
The walk-through gate frame includes a gate/ladder which is used
to access the upper levels of the Mi TOWER STAIRS and once
unlocked and opened, allows access into and through the base of
the MiSTAIRS. To open the gate/ladder remove the clip and lift the
gate/ladder upwards. It can now be swung inwards or outwards to
allow access.
The vertical tubes also feature positioning rings that will be used
when building the Mi TOWER STAIRS and allow the guardrail brace
panel hooks to be correctly positioned.
10 CONJOINED FRAMES
A set of conjoined frames can be created by disengaging the frame
clips on one four rung frame and tting it to a second four rung
frame. Engage and apply the Easy-Clip frame clips to lock the two
frames together.
7 ADJUSTABLE LEG AND CASTOR
The adjustable leg and castor allows for accurate positioning of
your MiTOWER in relation to your workplace. The leg can be
extended or retracted to allow for levelling and the brake must be
applied to prevent movement.
Adjustment Collar
Extend
Retract
Brake
OFF
ON
Engagement
Spring
Extend
Retract
Adjustment Collar
Engagement
Spring
Rubber
Foot
Gate Locking
Pin
Upper & Lower
Positioning
Rings
Gate / Ladder
Section
4 Rung Frames
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SAFETY DOS AND DON’TS - ALWAYS
Page 5
ALWAYS Read and understand this guide before you begin assembly.
Ensure that all safety requirements are met and that the tower is the correct access solution for
the task you wish to perform.
Ensure that the tower is assembled and dismantled by a qualified, competent person.
Cordon off the work area creating a zone with a radius that is 1m greater than the total height of
the tower.
Wear the correct Personal Protective Equipment for the task being performed. Gloves, steel
toecap boots, a hard hat and suitable clothing must be worn by all persons.
Tie back long hair and remove items of loose jewelery.
Perform a full risk assessment prior to assembling or using the tower and abide by your findings.
Prevent access to unauthorised persons if you have no other option but to leave the tower
unattended and if this is not possible then the tower must be dismantled.
Carry tools and materials safely retained in a tool belt that allows freedom of movement.
Ensure you properly assess the risk/method if tools or materials are hoisted to the platform via a
rope.
Access platforms from within the tower structure and via the 4 rung frames positioned at the
platform’s trap door end. Keep your feet in the middle of the rungs and grip the upper rungs
with your hands.
Erect the tower on smooth level ground that is capable of supporting its own weight, the user
and any tools or materials without subsidence.
ALWAYS
ALWAYS
ALWAYS
ALWAYS
ALWAYS
ALWAYS
ALWAYS
ALWAYS
ALWAYS
ALWAYS
ALWAYS
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SAFETY DOS AND DON’TS - NEVER
Page 6
NEVER Use the tower if you don’t understand something in this guide; please contact the supplier for
advice.
Assemble, use, move or dismantle the tower if you are tired or unwell or if you are under the
influence of alcohol or drugs.
Use the tower in adverse weather conditions which may endanger the user.
Use in wind conditions of Beaufort Force 5 and above. Please be aware of the tunnel
effect caused by buildings close to each other.
Assemble or use the tower near overhead hazards such as power lines that are within reach of
the tower or the user.
Ascend or descend your tower if both hands are not free.
Add banners, notice boards, etc. to the tower.
Use the tower if contaminated by paint, chemicals, etc.
Overload the platforms (see component matrix on each tower type).
Suspend the tower from another structure.
Lean from the tower and never apply undue side force.
Stand on the guardrails, toe boards, boxes (or similar) to gain extra height. If the working height is
insufficient either construct the tower to the required height or use an alternative method.
Use damaged components in your tower assembly.
NEVER
NEVER
NEVER
NEVER
NEVER
NEVER
NEVER
NEVER
NEVER
NEVER
NEVER
NEVER
332_MI TOWER_12/06/2019

Page 7
BEFOREYOUSTART
PREPARATION
The oor area must be clear of any obstructions including materials and debris. Check that you have all the
components necessary to construct the tower height you require. Check also each component for condition and
correct function. If any part is missing or damaged/not working correctly it must be replaced before assembling
3T (THROUGH THE TRAPDOOR) SYSTEM
The 3T method of construction has been developed to reduce the risk of an erector falling from a tower during
construction. The erector must sit on the platform with legs through the hatch and feet on the frame rungs
when attaching guardrail brace panels above the platform. This ensures the erector is always protected by a set
of guardrail brace panels.
TYING IN
You should consider tying in the tower to add stability, but this may only be carried out by a suitably
trained person.
BALLAST
Where shown in the component list, ballast must be used to stabilise against overturning. Only use solid
materials as ballast (i.e. no loose materials) and position to avoid overloading individual components. Ballast
should be supported by the base of your tower and securely fastened to prevent removal.
ASSEMBLY GUIDE
These instructions must always be made available to the user. If replacement copies are required, please contact
your supplier.
DAMAGED COMPONENTS
Regularly inspect all components for damage. Damaged components must be quarantined so that they cannot
be used. Where safe to do so, the component can be repaired but only by a qualified repairer. If in doubt
contact your supplier for advice.
DISMANTLING YOUR TOWER
The tower is easily dismantled by simply reversing the erection procedure. Make sure that the component
hangers are evenly loaded to ensure your tower remains balanced. You must, however, be protected by
guardrail brace panels when standing on any platform and ensure that you use the 3T method when removing
guardrail brace panels.
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Page 8
GETTING STARTED
GETTING STARTED
The MI TOWER and MI TOWER+ requires only one person to assemble and dismantle it. The MI TOWER STAIRS
requires two persons. Your tower is supplied with uniform 1m high rung frames which can be used at any
stage of the assembly. During erection, the frames may be connected together to create 2m high frames
which makes assembly both quicker and easier.
STABILISERS POSITIONING
Stabilisers are supplied and must be used for all tower heights.
For maximum effect arrange the stabilisers by positioning at an angle of 45 degrees to give a footprint as close
to square as possible, as shown in fig. 1.
If the tower is to be positioned against a wall, the stabiliser footprint can be altered as shown in fig. 2 but only
where the heights of the wall is a minimum of two thirds the height of the top working platform.
Ensure that all four stabilisers’ feet are in contact with the ground and that the ground can support the weight
of the tower and stabilisers.
MOVING YOUR TOWER
When your tower needs to be moved a small distance to enable you to continue your task, this can be
achieved provided the stabilisers can remain in pattern and all tools, materials and personnel are removed
from the tower.
You will need to raise the stabilisers so that they are no more than 25mm above the oor and properly locked.
However, if the stabilisers have to be repositioned and this reduces the footprint, your MiTOWER must be
reduced in height to 2m.
You must only move the tower by manual effort at a slow pace and only after fully assessing the risk. Once
moved, always check the tower before using.
If the tower is to be moved to a new location, a new level or over rough terrain, it must be fully dismantled and
rebuilt at the new location.
Wall
Fig. 1 Fig. 2
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MI TOWER
Page 9
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KNOW YOUR MiTOWER
Page 10
1
2
3
4 RUNG FRAME
TOE BOARD
TELESCOPIC STABILISER
PARTS LISTING
4
5
6
ADJUSTABLE LEG AND CASTOR
GUARDRAIL BRACE PANEL
HATCH PLATFORM
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KNOW YOUR KIT LIST AND SPECIFICATIONS
Page 11
4 RUNG FRAME
TELESCOPIC OUTRIGGER
HATCH PLATFORM
GUARDRAIL BRACE PANEL
220MM ADJUSTABLE LEG
125MM LOCKING CASTOR
TOE BOARD SET
MITOWER WEIGHT (KG)
PLATFORM SAFE WORKING LOAD
GROUND CONDITIONS
3.58
3.58
8.56
3.34
0.85
2.50
5.33
Weight (Unit)
kg
6
4
1
4
4
4
1
76.45
150kg
2m
qty
8
4
2
6
4
4
1
98.85
150kg
3m
qty
10
4
2
7
4
4
1
109.35
150kg
4m
qty
COMPONENT MATRIX AND WEIGHTS
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KNOW YOUR STORAGE AND TRANSPORT PACK
Page 12
TRANSPORT AND STORAGE
For ease of storage and of transportation,
MiTOWER has been designed so that all
components can be safely stored within the
tower’s base assembly. See illustration.
TROLLEY COMPONENTS
1
2
3
4
5
GUARDRAIL BRACE PANEL X2
TOE BOARD SET
HATCH PLATFORM
ADJUSTABLE LEG AND CASTOR X4
4 RUNG FRAME X2
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MI TOWER 4m - ASSEMBLY
Page 13
STEP 1
Fully insert the adjustable
legs with castors into two
frames, turning the leg’s height
adjustment collar to bring each
leg 25mm from the lowest
position.
STEP 2
Attach a guardrail brace panel to the vertical tube of one frame with the
upper claw positioned above the fourth rung and with all claws facing
outward. Make sure the claws are correctly locked on to the frame tube.
Now attach the second frame to the guardrail brace panel to create the
base frame assembly. Lock all four castors and using a spirit level as a
guide, adjust each leg to bring the base square and level.
STEP 3
Construct two sets of conjoined frames, these will give you two 2m
sections and will speed up the erection process. Release the frame clips
on one four rung frame and t it on to a second four rung frame. Apply
the frame clips and ensure they are correctly locked. Repeat this with the
second set. Fit one set of conjoined frames to a base frame and apply
the frame clips. Repeat this with the second set. Fit one set of conjoined
frames to a base frame and apply the frame clips. Repeat this with the
second set.
STEP 4
Next, attach one guardrail brace panel with its lower jaw positioned
above the sixth frame rung. It must be tted on the opposite side to
the rst guardrail brace panel to ensure stability. Ensure all claws are
facing outward and correctly locked on to the frame tube.
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Page 14
MI TOWER 4m - ASSEMBLY
STEP 5
Stand inside the tower and t a platform on to the eighth
rung, making sure that the wind-lock catches engage.
STEP 6
Fit a stabiliser to each corner of the tower. Position the lower
horizontal stabiliser coupler clamp just above the frame’s second
rung, then secure the top stabiliser coupler clamp just above the
frame’s fth rung. Adjust the stabilisers so that you create as square
a footprint as possible. Adjust each stabiliser’s length so that they are
in contact with the ground. Make sure all coupler clamps are correctly
secured. Extend and lock the four component hangers located on
either side of the platform.
STEP 7
Place two guardrail brace panels on to one set of hangers, and the
toe boards in to the opposite set. Enter the tower framework and
climb the frame rungs until you are half way through the platform’s
trap door. Now manoeuvre yourself so that you are sitting on the
platform, with your legs through the trap door and your feet on the
frame rungs. From this position, you should take each of the guardrail
brace panels, one at a time, and attach so that the upper jaws are
positioned above the twelfth rung.
STEP 8
With both panels in position, you may access the platform. Unfold the
toe board set and position so that they sit on to the outer edge of the
platform. Finally, retract all hangers and the tower is now complete
and ready to use.
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Page 15
MI TOWER 4m - ASSEMBLY
STEP 9
Place three guardrail brace panels on to one set of hangers and a
pair of eight rung conjoined frames to the other side. Enter the
tower framework and climb the frame rungs until you are half way
through the platform’s trap door. Now manoeuvre yourself so that
you are sitting on the platform, with your legs through the trap
door and your feet on the frame rungs. From this position, you
should take a guardrail brace panel, one at a time, and attach so
that the upper jaws are positioned above the twelfth rung. With
both panels in position, you may access the platform.
STEP 10
Fit one set of conjoined frames to each end of the tower and
apply the frame clips. Next, attach the guardrail brace panel with
its lower jaw positioned above the fourteenth frame rung. Ensure
all claws are facing outward and correctly locked on to the frame
tube. Descend the tower and from the ground place two guardrail
brace panels onto the hangers on one side of the platform then a
set of toe boards and a platform on the other side.
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Page 16
MI TOWER 4m - ASSEMBLY
STEP 11
Access the tower then carefully t the second platform on to the
sixteenth rung, making sure that the wind-lock catches engage.
Extend and lock the four component hangers located on either side
of the platform. Transfer the two guardrail brace panels and the set
of toe boards to the component hangers on the second platform.
STEP 12
Position yourself so that you are half way through the second
platform’s trap door. Now manoeuvre yourself so that you are
sitting on the platform, with your legs through the trap door and
your feet on the frame rungs. From this position, you should take
each of the guardrail brace panels, one at a time, and attach so
that the upper jaws are positioned above the twentieth rung.
STEP 13
With both panels in position, you may access the platform. Unfold
the toe board set and position so that they sit on to the outer
edge of the platform. Finally, retract all hangers and the tower is
not complete and ready to use.
INTERMEDIATE WORK PLATFORMS
Any platform tted to the tower at any stage may be used as a
work platfrom, provided toe boards and guardrail brace panels
are tted.
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MI TOWER+
Page 17
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KNOW YOUR MI TOWER+
Page 18
1
2
3
4 RUNG FRAME
TOE BOARD
TELESCOPIC STABILISER
PARTS LISTING
4
5
6
ADJUSTABLE LEG AND CASTOR
GUARDRAIL BRACE PANEL
HATCH PLATFORM
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KNOW YOUR KIT LIST AND SPECIFICATIONS
Page 19
4 RUNG FRAME
TELESCOPIC OUTRIGGER
HATCH PLATFORM
GUARDRAIL BRACE PANEL
220MM ADJUSTABLE LEG
125MM LOCKING CASTOR
TOE BOARD SET
MITOWER+ WEIGHT (KG)
PLATFORM SAFE WORKING LOAD (KG)
GROUND CONDITIONS
3.55
4.35
12.20
4.15
0.85
2.45
6.50
Weight (Unit)
kg
6
4
1
4
4
4
1
87.20
275
2m
qty
8
4
2
6
4
4
1
114.80
275
3m
qty
10
4
2
7
4
4
1
126.05
275
4m
qty
COMPONENT MATRIX AND WEIGHTS
12
4
3
9
4
4
1
153.65
275
5m
qty
14
4
3
10
4
4
1
164.90
275
6m
qty
332_MI TOWER_12/06/2019