SCAFFOLD PROCEDURE

Employer:
Qatar Rail Company
Tender No: Project Title:
RTC/075/2013 Metro Phase 1 Systems, Rolling Stock and
Trackwork
Document Title:

SCAFFOLD PROCEDURE

3 29 Sept. 2016 Third issue

2 4 June 2016 Second issue
1 01 Nov.2015 First issue
REV. DATE DESCRIPTION

- -..... I
APPROVED APPROVED H. Nitt~ ~
REVIEWED REVIEWED T. Ito :Llwf
PREPARED PREPARED T . Andersonari \J
V
SUBSYSTEM SECTION PROJECT

DOCUMENT No.: REVISION

M01O-MSI-HSE-OO-PR0-02010 3
CC:
(M01 O-MSI-DCM-OO-FRM-00001 Rev .2, 07/09/2015)

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M01O-MSI-HSE-OO-PR0-02010- Rev. 3
 SCAFFOLD PROCEDURE
TABLE OF CONTENTS
1.0 Purpose .. ............. .................................................. ... .... ... ...... .. ..... .. ............... ......... .. ... ... 3
2.0 Scope .... .. ..... ... .. ..... .. .. ....... ...... .. ........ .... ..... .. .. .... ................... ......... ........... .. ... ...... .. ........ 3
3.0 Document Control ........... .... .. ...... ..... .. .. .. ............ .. ........ ...... .. .... .. .. ................................. 3
4.0 Definations, Terms and Abbreviations .......... ................. .... .. .......................................... 3
5.0 Responsibility .. .. ......... .. ... .. ........ .. ... .... .. .. .................. ............... .. ..... .. .... ...... ... ...... ..... ... ... 5
8.0 Records .... .. ................................................. ............. .................. ..................... ... .. ....... . 16

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M01O-MSI-HSE-OO-PR0-02010- Rev. 3
 • MITSUBISHI 6 ' Corporation
Mitsubishi
. . . . _ HEAVY 1NousTR1Es. LTD.
+
HITACHI
. the Ne>n1.
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K
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KJNKI SHAR"'O
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SCAFFOLD PROCEDURE
1.0 PURPOSE

1.1 To define the minimum standards for scaffold materials, erection and inspection to
ensure that the resultant structures are safe to use.

2.0 SCOPE

2.1 This general procedure applies to the MMHKT project.

2.2 These procedures complement international legislation and current construction
practice contained in the CITB Guide to Practical Scaffolding. If any incompatibility
exists between the requirements of this procedure and the CITB guide, the higher
standard shall be followed.
2.3 Any scaffolding subcontractor engaged by MMHKT shall be approved as required
by the system procedure
2.4 All scaffolds shall be erected as per approved method statement and designs
2.5 All scaffolds shall be erected as per the requirements given in the Temporary work
procedure (refer MO 1O-MSI-HSE-OO-PR0-020 17)

3.0 DOCUMENT CONTROL

3.1 This General procedure is a controlled document as required by the Quality Manual
and issued in accordance with the system procedure Control of Documents and
Data.
3.2 Revisions of this document will be issued in accordance with that general procedure
when the main text changes or when an appendix is added . Revised appendices for
substitution will be issued separately and, where appropriate, will include a separate
schedule of contents.
3.3 Document revision and appendix issue status are shown in the Register of Safety
Management System Documents, a copy of which may be obtained from the
Document Controller upon request.

4.0 DEFINITIONS, TERMS AND ABBREVIATIONS

4.1 Scaffolding: A temporary structure that provides access, a working platform or is

used to support materials, plant or equipment. It can be divided into two types:

• Unit formwork, Kwikstage, All Round or other types of purpose made frames or units.

• Tube & Fittings comprising individual tubes of varying lengths held together by individual
couplers.

4.2 Competent Person, Scaffold Systems: A person assessed for his experience of
scaffold systems and entered in the Register of Competent Persons (see general
procedure Registration of Competent Persons) .

4.3 Glossary
Terms used to describe scaffolding components in this technical procedure are:

Base Plate:
A metal base (with a central spigot) for distributing the load from a standard, raker or
load bearing tube.

Bay Length:
The distance between two adjacent standards alongside the face of a scaffold

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l... !!"1.!PD':Pl!~~!tU ),r~rpotsu~S~n Hl~ACHl1. K KINKISHARYO T HJ.\LE s
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SCAFFOLD PROCEDURE

Board:
A softwood long grain or metal board used with similar boards to provide access
platforms, working platforms or toe boards, etc. (where softwood boards are used
these must be treated and approved as "Flame Retardant").

Board Bearer (Intermediate Transom) :

A tube spanning across ledgers at mid span, to support a working platform.

Brace:
A tube incorporated diagonally across two or more members in a scaffold and secured
to them in order to ensure stability.

Buttress:
A well-braced tubular structure erected against existing scaffolding for the purpose of
strengthening it.

Castor:
A swivelling wheel with a lock device secured to the base of a standard for the purpose
of making a scaffold mobile.

Toe Board Clip:

Used to fix a toe board to a scaffold tube.

Coupler:
A fitting used to fix scaffold tubes together. Couplers are divided into load bearing or
non-load bearing .
Guardrail:
A tube secured onto the scaffold to prevent the fall of a person.

Hoop Iron:
Metal bond fitted to the ends of a softwood board to prevent splitting .

Ledger:
A horizontal tube secured to standards with load bearing fittings . It prevents standards
from bowing and acts as a support for transoms, board bearers and ledger to ledger
diagonal bracing.

Access Platform:
A fully boarded out bay that provides step off points for ladder access.

Lift:
The assembly of ledgers, transoms and board bearers forming each horizontal level
of a scaffold .

Needle Transom :
A transom extended from a scaffold .

Node Point:
Common point where ledgers, standards and transoms are fixed .

Puncheon:
A vertical tube secured at its lower end, with a load bearing coupler, to a horizontal
tube. The load is not transmitted directly into the ground or into a base plate.

Raker:
An inclined load bearing tube.

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M01O-MSI-HSE-OO-PR0-02010- Rev. 3
6• ' MITSUBISHI
HEAVY 1NDusTa1•s. LTD.
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SCAFFOLD PROCEDURE
Scafftag:
A tag displayed at the access point to every scaffold to indicate that the scaffold has
been inspected within the previous seven (7) days and is safe to use.

Sleeve Coupler:
A fitting which fits over a scaffold tube and is used to join one tube to another, end to
end.

Sole Plate:
A timber (normally a short scaffold board) used to spread the load from the base
plate over an extended area.
Spigot (Joint Pin):
A fitting which fits inside a scaffold tube and is used to join one tube to another, end
to end.

Standard:
A vertical tube used to transmit the load to ground or ground level.

Stop End:
A guardrail placed across the end of a scaffold, or used to isolate un-boarded parts.

Tie:
A tube used to tie a scaffold into a secure anchorage.

Toe board:
A board positioned along the edge of a platform to prevent persons, tools and
materials falling from the platform.
Transom :
A tube connecting the outer standards to the inner standards. It spans across ledgers
and forms the working platform.

Unit Beam:
A purpose made lattice beam incorporated into a scaffold structure to form a bridge
where an extended opening between standards is necessary.

Working Platform:
The boarded out deck from which work is carried out.

5.0 RESPONSIBILITY

5.1 The Project Manager has overall responsibility for the implementation of this general
procedure.

6.0 REFERENCES

ISO 14001 :2004 Environmental management systems - Specification with guidance for use
HASAWA 1974
OHSAS 18001 :2007 Occupational health and safety management systems - Specification
CITB Guide to Practical Scaffolding
QCS 2014 Section 11 Part 1 Regulatory Document Working at Heights
BS EN 12811 -1:2003 Temporary works equipment

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 SCAFFOLD PROCEDURE
7.0 PROCEDURE

7. 1 Materials
7.1.1 General

7 .1 .1.1 All scaffolding material will be of sound construction and

adequate strength and will be manufactured, constructed and
maintained to international standards.

7.1.2 Tubes, Units and Frames

7.1 .2.1 Tubes, units, frames, etc. shall be straight to the eye and shall
be free of cracks, splits, excessive corrosion or other defects.
The ends shall be cut square with the axis of the tube.
7.1.2.2 Any tube, unit or frame requiring a high degree of maintenance
such as wire brushing or scraping shall be replaced .
7.1.2.3 No tube, unit or frame will be painted. The only acceptable
coating will be galvanising and zinc primer.
7.1.2.4 No black steel tube or water pipe shall be used.

7.1.3 Scaffolding Boards

7.1 .3.1 Scaffold boards shall be one of three thicknesses, i.e. 38mm,
50mm and 63mm. All boards will be 225mm wide.
7.1 .3.2 Boards of similar thickness will be used to deck out individual
scaffolds.
7.1.3.3 Scaffolding boards are not acceptable if they have a knot larger
than 50mm diameter.
7 .1 .3.4 Edge knots shall not exceed 50% of the thickness of the board.
7 .1.3.5 Warped boards shall not be used.
7.1 .3.6 Scaffold boards with splits are not acceptable.
7.1.3.7 There shall be no cut outs, burns, oil stains or projecting nails.
7.1 .3.8 Boards shall not be painted or treated in any other way that may
conceal defects. They may be fireproofed using an approved
flame retardant material.
7.1.3.9 Boards that are broken or excessively worn shall not be used.
7.1.3.10 Boards shall be square cut and bound with a hoop iron .
7.1.3.11 As a minimum the hoop iron shall be stamped with the
following information:

• The international standard with which board complies.

• The maximum span in metres over which the board has to be supported.

7.1.4 Couplers

7.1.4.1 Couplers will be inspected weekly by a Competent Person,

Scaffold Systems.
7.1.4.2 Any coupler found to be broken or damaged or found to have
rusty or damaged threads will be discarded.

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 SCAFFOLD PROCEDURE
7 .1.4.3 Couplers will be sorted by type. They will be kept clean and
lightly oiled to prevent rust.

7.1.5 Storage of Materials

7 .1 .5.1 All scaffolding material will be properly and neatly stored.

• Tubes will be sorted and stored by length.

• Couplers will be sorted and stored by type.
• Boards will be stored no more than 20 high.

7.1.5.2. Where materials are being stored at the site of erection for immediate
use, they will be stored in a neat manner that does not present a tripping
hazard or block access routes.
7.2 General Rules for Scaffolding
7.2.1 Foundations

7.2.1.1 The foundations shall be adequate to carry the load and, as far
as possible, level.
7.2.1 .2 A base plate shall be placed under every standard irrespective
of the foundation surface.
7.2.1.3 A sole plate shall be placed under every base plate where the
foundation is other than concrete or metal plate decking . This
rule shall apply to open deck grating.
7 .2.1.4 Sole plates, where required, shall be placed underneath the
base plates on two adjacent standards, normally at right angles
to the face of the scaffold. The sole plate will extent 600mm
either side of two adjacent standards which it supports.
7.2.1.5 Under no circumstances will any excavation be performed within
3m of the foundations of a scaffold to prevent undermining.

7.2.2 Standard ( Tube & Couple Scaffolds)

7.2.2.1 Standard shall be plumbed vertical
7.2.2.2 The spacing between standards is determined by the intended
use of the scaffold. Under no circumstances will the bay length
exceed those distances given in Table 7.1.
7.2.2.3 Joints in standards can be made with sleeve couplers or spigots
Uoint pins). Joints must be staggered, i.e. they must not occur at
the same level in adjacent standards.

7.2.3 Ledgers (Tube & Coupler Scaffolds

7.2.3.1 Ledgers must be plumbed level and fixed to the inside of
standards using right angle, load-bearing couplers.
7.2.3.2 The vertical distance (lift height) between ledgers must not
exceed 2m.
7.2.3.3 Joints in ledgers will be made with sleeve couplers; spigots Uoint
pins) are not acceptable. All joints must be staggered.

IMPORTANT NOTE
Right angle couplers (doubles or 90s) are the only fitting suitable for load
Bearing. Swivel couplers are not acceptable in a load bearing capacity.

Table 7.1 General Requirements for Tube and Coupler Scaffolds

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 SCAFFOLD PROCEDURE
Distributed Maximum Commonly Max. bay
Duty Use of platform loads on number of used widths length m
platforms platforms using 225mm
kN!m 2 boards
Inspection and Inspection, painting, 0.75 1 working 3 boards 2.5
very light duty platform
stone cleaning, light
cleaning, cleaning and
access.
Light duty Plastering, painting, 1.50 2 working 4 boards 2.4
stone cleaning, glazing platforms
and pointinQ
General General building work 2.00 2 working 5 boards or4 2.1
purpose including brickwork, platforms+ boards+ 1
window and mullion 1 at very inside
fixing, rendering , light duty
plasterinQ
Heavy duty Block work, brickwork, 2.50 2 working 5 boards or 5 2.0
heavy cladding platforms+ boards+ 1
1 at very inside or 4
light duty boards+ 1
inside
Masonry or Masonry work, concrete 3.00 1 working 6 to 8 boards 1.8
special duty block work, and very platform+ 1
heavy cladding at very light
duty

7.2.4. Transoms
7.2.4.1. Ledgers must be plumbed level and fixed to the
inside of standards using right angle, load-bearing
couplers.

7.2.5. Ties
7.2.5.1. Ties must fixed at every second lift and every
second standard.
7.2.5.2. Where a scaffold has been sheeted out with
tarpaulins, consideration will be given to additional
wind loading and the insertion of additional ties.

7.2.5.3. All ties will be positive two way ties i.e. they prevent
movement of the scaffold either into or away from
the building. Positive two-way ties are:

• Boxtie • Throughtie
• Screw or anchor ties • Ties secured with S.K. couplers
• Ties secured with Gravlock couplers (provided they are used in pairs).

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SCAFFOLD PROCEDURE
7.2.5.4 All ties must be secured as near to the node
point as is possible. No other coupler will be
acceptable.
7.2.5.5 The anchorage point to which a tie is
secured must be of sufficient strength to
withstand the load imposed upon it. Under
no circumstances will guardrails be used as
an anchorage point for ties.
7.2.5.6 As a general rule, ties must always be
inserted. Where this is not possible, one of
the following actions may be taken.

• On small scaffolds not extending above three lifts, adequate stability of the scaffold can
be achieved by rakers. The raker will be secured with right angle couplers to the ledger
at the second lift. The load in the raker will be distributed through a base plate or if
required a sole plate. The foot of the raker will be tied back to the main scaffold. Rakers
will be inserted at the same standard spacing as ties.

• Where a scaffold extends above three lifts, a well-braced buttress shall be erected along
the total length of the structure. The buttress shall be erected to a height no lower than
the third lift from the top of the scaffold. The scaffold will then be raked back from the
second top lift to the buttress, using right-angled couplers.

7.2.5.7 No raker shall extend more than 3m without

being tied back at its mid-point.
7.2.6. Braces
7.2.6.1. All scaffold will be braced in both directions. Braces
whether fa9ade or ledger to ledger, will extend to the
full height of the structure.
7.2.6.2. Fa9ade braces will be repeated at a maximum
distance of every 1Om.
7.2.6.3. Ledger to ledger bracing will be repeated at every
alternate set of standards.
7.2.6.4. Joints in fa9ade braces will be made with sleeve
couplers; spigots are not acceptable.
7.2.6.5. Where braces are fixed to transoms, the transom
itself must be fixed with right angle couplers.

7.2.7. Working Platform

7.2.7.1. Working platforms will normally be five boards wide

but may be reduced to three boards where the
scaffold has been erected for inspection purposes
only.
7.2.7.2. All working platforms will be close boarded with
boards butted end to end.
7.2.7.3. Each individual board will be securely lashed.
7.2.7.4. Guardrails will be fixed to the inside of the standards
on all working platforms. The top guardrail should
be a minimum of 950mm above the working
platform and any gap between the top rail and the
intermediate rail shou ld not exceed 470mm. The
toe boards to be suitable and sufficient to prevent
people or materials from falling
7.2.7.5. An intermediate guardrail will be fixed to the inside
of standards in every instance.

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M01O-MSI-HSE-OO-PR0-02010- Rev. 3
 • MITSUBISHI ,...
• Corporat1on
Mitsubis~i
, . . . HEAVY 1NnusTR1•s, LTo.
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SCAFFOLD PROCEDURE
7.2.7.6. Toe boards including stop end boards will be fitted
to all working platforms. The minimum height will be
150mm.
7.2.7. 7. If materials are to be stacked above the height of the
toe board, a suitable barrier (brick guards) will be
erected .
7.2.7.8. Ladder access openings will be not more than
500mm wide (2 boards) and will be as short as
possible in the other direction. The maximum span
of any board forming the working platform will be
1.20m.
7.2.7.9. The minimum overhang of any board will be not less
than 50mm and the maximum overhang will not
exceed 150mm.
7.2.7.10. No more than 2 boards' width will be supported
on needle transoms unless the transoms are fixed
with right angle coupler and 'picked up'.
7.2.7.11 . Signboards in appropriate languages shall be
permanently displayed on each working platform.
These shall state the maximum allowable weight of
tools and materials and the maximum number of
men per bay appropriate to the type of scaffold.

7.2.8. Ladders Access Platforms

7.2.8.1 . The vertical height between ladder access platforms

will not exceed 9m.
7.2.8.2. Ladder access platforms will be close boarded and
will have guardrails and toe boards secured.2.8.2
Ladder access platforms will be close boarded
and will have guardrails and toe boards secured as
described in section 7.2.7 above.

7.2.9. Ladders

7.2.9.1 . Ladders will project beyond working platforms or

ladder access platforms by a minimum distance of
1.05m (five rungs) .
7.2.9.2. Ladders will be based on a sound footing . They will
be lashed or secured by a proprietary clamp at both
the foot and near the top.
7.2.9.3. The angle at which the ladder is set will (with the
exception of scaffold towers) be 75° or 300mm out
for every 1.20m of vertical length.
7.2.9.4. Long ladders will be supported and lashed at their
mid-point to remove any bounce.
7.2.9.5. Ladders may be of aluminium. Only properly
constructed and manufactured ladders shall be
used. 'Home made' ladders are strictly forbidden .
7.2.9.6. All ladders will be of good repair and sound
construction. They will be checked for damage,
faults and wear & tear by the Competent Person,
Scaffold Systems before use.
7.2.9.7. Ladders will not be painted or treated in any other
way likely to conceal defects.
7.2.9.8. Stiles will not be excessively warped.

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M01O-MSI-HSE-OO-PR0-02010- Rev. 3
 • MITSUBISHI 6 ' Corporation
Mitsubishi
, . , . HEAVY 1NnusTR1•s. LTD.
+HITACHI
·
Inspire the Ne>,a<-
K- KINKI SHAR"'O
1' THAL
•
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SCAFFOLD PROCEDURE
7.2.9.9. Rungs will not be excessively worn, broken or
missing.
7.2.9.10. Metal tie rods will be in place.
7 .2.9.11 . Ladders may be on the outside of a scaffold for the
first two lifts above ground level. In every other
instance, the ladder run will be internal to the
scaffold.
7.2.9.12. All ladders in a scaffold will be tagged and shall
be inspected on weekly basis by competent person

7.2.10. Protective Fans

7.2.10.1. Where it is likely that material may fall from a
scaffold and where people are working or passing in
close proximity to the structure, a protective fan will
be erected.
7 .2.10.2. Protective fans will not be used to store scaffolding
or other materials
7.2.10.3. The protective fan shall not be more than 5m
above ground level, shall be at least 2m wide and at
an angle not exceeding 20° to the horizontal.
7.2.11. Check Fittings
7.2.11.1 Without exception, check fittings will be used
whenever a scaffold tube is punched up, picked
up, rakered or hanging.

7.2.12 Scaffold Loading

7.2.12.1 It is the responsibility of the Competent
Person, Scaffold Systems to ensure that the
scaffold construction and strength are suitable
for the purpose to which the structure will be put.
7.2.12.2 Design calculations shall be submitted to the
Project Manager or Construction Manager for
any scaffolding other than a common access
scaffold. The calculations are to show both dead
and live loading.

7 .2.13 Traffic Movements

7.2.13.1 Where a scaffold is erected in an area where it

is likely to be struck by a vehicle, the base of the
scaffold shall be properly protected with hard
barriers. The barrier shall be illuminated with
flashing warning lights during the hours of
darkness.

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SCAFFOLD PROCEDURE
7.3 Scaffold Types

7.3.1 Common Scaffold

7.3.1.1 Common access scaffolds shall be taken to mean:
o Independent tied.
o Birdcage.
o Freestanding tower (fixed or mobile).
o Hanging scaffold (single lift only).

7.3.2 System Scaffold

7.3.2.1 Where a system scaffold is being erected it shall be constructed
in strict compliance with the manufacturer's instructions.
7.3.2.2 Different manufacturers' systems will not be intermixed; it is
however permissible to use standard tube and coupler with any
other standard tube and coupler system.
7.3.2.3 A copy of the manufacturer's instructions shall be given to the
HSE Manager before any system scaffold is erected.
7.3.3 Independent Tied Scaffolds
7.3.3.1 This consists of two rows of standards running parallel to a
building joined with ledgers and transoms and adequately
braced in two directions. In all respects they will comply with the
general requirements of section 7.1 and section 7.2 above.
7.3.3.2 Independent tied scaffolds will not be erected to a height of more
than 45m without design calculations being submitted to the
Project Manager or Construction Manager by a Competent
Person, Scaffold Systems.

7.3.4 Birdcage Scaffold

7.3.4.1 Birdcage scaffolds are constructed in a grid pattern using
standards arranged at regular intervals in parallel lines.
7.3.4.2 The standards will be laced together with a grid of ledgers and
transoms fixed by right angle couplers at every lift. The transoms
in the top working lift may be secured with putlog clips.
7.3.4.3 Standards will be spaced at a maximum distance of 2.50m in
each direction.
7.3.4.4 The first lift will be secured at a maximum height of 2.50m.
Subsequent lifts will not exceed 2m in vertical height.
7.3.4.5 The maximum loading to be imposed on a birdcage scaffold will
not exceed that specified in Table 7.1 for Inspection and Very
Light Duty unless the structure has been designed by a
Competent Person, Scaffold Systems and the design
calculations submitted to the Project Manager or Construction
Manager.
7.3.4.6 Braces will be provided for every six standards in each line, in
both directions.
7.3.4.7 In all other respects, a birdcage scaffold will comply with the
general requirements as specified in section 7.1 and section 7.2
above.

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SCAFFOLD PROCEDURE
7.3.5 Freestanding Towers

7.3.5.1 Freestanding towers may be fitted with castors or wheels for

mobility or erected as freestanding towers. They support a single
working platform only, which shall not project beyond the base
area. Access to the platform shall be by vertical ladder lashed
internally to the tower at one of the short sides.
7.3.5.2 The maximum loading will not exceed that specified in Table 7.1
for Light Duty Scaffolding unless the structure has been
designed by a Competent Person, Scaffold Systems and the
design calculations submitted to the Project Manager or
Construction Manager.
7.3.5.3 The smallest base dimension will be no less than 1.20m.
7.3.5.4 The height to base dimension ratio will be as follows:

• Mobile Towers: Not more than three times the minimum base
dimension.
• Stationary Towers: Not more than three times the minimum base dimension.

7.3.5.5 Mobile towers will only be used and moved on firm and level
surfaces.
7.3.5.6 Castors or wheels used are to suit the size and loading of the
tower. They must be fixed to each extreme corner in the base of
mobile towers and secured so that they cannot fall out when
tower is moved.
7.3.5.7 Castors or wheels will be marked with their safe working load.
They will be fitted with an effective brake that must be applied
when the mobile tower is in use.
7.3.5.8 Lift heights will not exceed 2.70m, with the lowest lift being fixed
as near to the base as possible. Transoms and ledgers will be
secured using right angle couplers.
7.3.5.9 Ledger to ledger (dog leg) braces will be fixed to the full height
of the tower on every side.
7.3.5.10 Plan braces will be fixed at every alternate lift, using right angle
couplers. The bottom lift and the top lift will always be plan
braced.
7.3.5.11 Under no circumstances will horizontal forces be applied at the
level of the working platform by pulling heavy cables or ropes.
7.3.5.12 Under no circumstances will mobile towers be moved with men
or material on the working platform.
7 .3.5.13 In all other respects freestanding towers will comply with the
general requirements as specified in section 7.1 and section 7.2
above.
7.3.5.14 Internal ladders will be fitted with all mobile scaffolds
7.3.5.1 5 Scafftag will be used in all mobile scaffolds and weekly
inspection will be carried out by competent person

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M01O-MSI-HSE-OO-PR0-02010- Rev. 3
 • MITSUBISHI "
. . . . . HEAVY INDUSTRIES. LTD.
+ Mitsubishi
Corporation HITACHI
. the Next,
Inspire
K-
e§
KJNKI SHARUQ
'' TH , I\.. , LES
SCAFFOLD PROCEDURE
7.3.6 Hanging Scaffold (Single Lift)
7.3.6.1 A hanging scaffold is a grid platform of tubes and couplers
suspended below load bearing beams, structural members or
other overhead structures.
7.3.6.2 In all instances, the Project Manager or Construction Manager
will be consulted to ensure the integrity and adequate strength
of the suspension points.
7.3.6.3 Guardrails will not be used as supports for slung scaffolds.
7.3.6.4 Hangers will not be spaced more than 2.50m in either direction .
7.3.6.5 The imposed load will not exceed that specified in Table 7.1 for
Inspection and Very light Duty Scaffolds.
7.3.6.6 Horizontal tubes used to support the hangers shall be secured
to steelwork with Gravlock fittings. These shall be used in pairs.
7.3.6.7 Under no circumstances will hangers be supported on deadhead
fittings.
7.3.6.8 Vertical hanging tubes will be secured with right angle couplers.
A check fitting will be fixed to the hanging tube immediately
above the securing right angle coupler, at the suspension point
and immediately underneath the right angle coupler securing the
ledger, at the working platform.
7.3.6.9 Adequate braces will be inserted to remove any sway in either
direction.
7.3.6.10 In all other respects a hanging scaffold will comply with the
general requirements as specified in section 7.1 and section 7.2
above.
7.3.6.11 Where a hanging scaffold is to consist of more than one lift, it
will be designed by a Competent Person, Scaffold Systems and
the design calculations submitted to the Project Manager or
Construction Manager.

7.3.7 Tanks & others Vessels

7.3.7.1 Where a scaffold is erected around tanks or other spherical
vessels, it will be permissible to cape and corner (overlap) the
boards forming the working platform.
7.3.7.2 Fixed ladders with backing hoops which normally provide access
to the tank or vessel will not be used as scaffold access ladders.
7.3.7.3 In all respects with the exception of section 7.2.7 above, the
scaffold will comply with all the requirements stated in section
7.1 and section 7 .2 above.

7.4 Erection of Scaffolding

7.4.1 Scaffolds shall be erected by capable workmen who have undergone a
course of training as scaffolders.
7.4.2 Scaffolders shall operate under the control of a Competent Person,
Scaffold Systems. A copy of the certification of the Competent Person,
Scaffold Systems and of the scaffolders shall be given to the HS
Manager prior to his commencement of employment on site.
7.4. 3 Whenever possible, the scaffolders erecting the scaffold will work from
the minimum of a three board run . It is not acceptable for scaffolders to
be perched on tubes, unless a fall arrest device (see Working at Height

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procedure M010-MS1-HSE-OO-PR0-02025) is provided and secured to a
suitable anchorage point at all times
7.4.4 Ladders will be properly lashed throughout the vertical height of a
scaffold as it progresses. Scaffolders erecting the scaffold will use the
ladders to gain access to the working level.
7.4.5 Tubes or boards being used in the construction of the scaffold will be
stored flat in a neat and tidy manner. They will not be stacked vertically
against the scaffold.
7.4.6 Loose tubes or boards will not be left on a scaffold after its completion.
7.4.7 In order to assist the section engineer in planning a safe scaffold system
the HS Manager is to be notified of the intended work at least seven
days before the scaffold is due to be erected.
7.4.8 Where men are erecting a slung or cantilevered section or crawling
around on a pipe bridge or other structural steelwork they will, in all
instances where there is a possibility of falling more than 2m, wear a full
body harness suitably anchored .
7.4 .9 Where a scaffold is left in an incomplete state, the bottom ladder will be
removed and a notice wi ll be secured to the lower lift stating 'Danger
Incomplete Scaffold Keep Off' . This notice will be in the appropriate
languages.
7.4.10 Where a scaffold is left in an incomplete state, the bottom ladder will be
removed and a notice will be secured to the lower lift stating 'Danger
Incomplete Scaffold Keep Off'. This notice will be in the appropriate
languages.
7.4.11 Where one section of a working platform is incomplete, access may be
gained to the completed section provided that a stop end, preventing
entry, is placed over the working platform at guardrail height. A notice
stating 'Danger Incomplete Scaffold Keep Off' will be secured to the
stop end. This notice will be in the appropriate languages.
7.4.12 Handballing will be the normal method of erecting a scaffold. Where,
however, a scaffold consists of a considerable number of lifts a gin wheel
may be used, provided the following requirements are met:

• The gin wheel has a valid certificate not more than six months old issued by a Competent
Person, Scaffold Systems.
• The cantilevered tube to which the gin wheel is secured does not project more than
760mm beyond the scaffold, unless it is adequately supported.
• The cantilevered tube is secured to the inside and outside standard using right angle
couplers. Both standards to be diagonally braced.
• The fibre rope , which shall have a minimum diameter of 18mm, will be checked daily by
the Competent Person, Scaffold Systems and discarded if unfit for use.
• The maximum load to be lifted by a gin wheel will not exceed 50kg.

7.5 Inspection
7.5.1 All scaffolds will be inspected by a Competent Person, Scaffold Systems
prior to use and at seven-day periods thereafter.
7.5.2 The Competent Person, Scaffold Systems will complete the relevant
sections of the scaffold tag if he finds the scaffold to be acceptable for
use.

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 SCAFFOLD PROCEDURE
7.5.3 Where the Competent Person, Scaffold Systems finds the scaffold to be
unsafe, he will remove the scaffold tag and place a notice on the bottom
lift stating 'Danger Incomplete Scaffold Keep Off. This notice will be
in the appropriate languages. Where access is by ladder, he will also
ensure that immediate action is taken to remove the lower ladder.
7.5.4 These actions will be in force until such times as the Competent Person,
Scaffold Systems declares the scaffold safe for use.
7.5.5 A scaffold reg ister shall be maintained with details of all scaffolds and
will be updated on a weekly basis
7.6 Scaffold Users
7.6.1 Scaffolds will be used for the purpose for which they have been erected.
Under no circumstances will they be overloaded.
7.6.2 Scaffold users will under no circumstances interfere with, modify or
remove any part of a scaffold (this includes scaffold boards). Interference
with a scaffold will result in disciplinary action.
7.6.3 Only a Competent Person, Scaffold Systems is authorised to modify a
scaffold.
7.6.4 If for any reason a user considers a scaffold to be unsafe, he will
immediately contact his supervisor. The supervisor will immediately
remove the scaffold tag and place barrier tape through the lower rungs
of the first access ladder. The supervisor shall then notify the Competent
Person, Scaffold Systems.

8.0 RECORDS
8.1 Records generated by referenced procedures shall be managed in accordance with

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