BPS 1450 User manual
1450/850
A SAFER WAY TO REACH NEW HEIGHTS
Mobile Access Tower
3T - Through the trap method
This Assembly Guide is intended to provide you
with step-by-step instrucons on how to erect
your Mobile Access Tower (MAT) with ease and
safety, using the 3T (through the trap) method.
You should read and understand all notes
and diagrams, including the parts list for each
height, before commencing assembly. Personnel
should be qualied or competent to erect this
tower. Please consult the PASMA Guide for full
information on the use of Mobile Access
Towers. Remember to do a risk assessment of
the area where the tower is to be used before
commencing erection.
Supplied by BPS Access Solutions Ltd
Tel. +44 (0) 333 006 9776
Fax +44 (0) 1959 572 932
www.laddersandscaffoldtowers.co.uk
1
1450/850
A SAFER WAY TO REACH NEW HEIGHTS
Mobile Access Tower
Descripon, Safety Notes and Fings 3
Components 7
Assembly 8
Dismantling 15
Risk Assessment Form 18
Contents
Manufactured by UTS SALES & REPAIR
2
Manufactured to BS EN 1004:2004 Class 3 8/12 XXXD
Instruction Manual BS: EN: 1298-IM-EN
The 1450/850 tower is manufactured to BS EN 1004:2004 CLASS 3 8/12 and holds the
British Kitemark. The Kitemark is the universal symbol that reassures the user that the
product is certified to BSI stated standards.
•Instrucons for erecon and use to be followed carefully.
•A risk assessment should always be carried out before erecng your MAT (Mobile Access
Tower).
•You will nd a standard risk assessment form at the back of this instrucon manual.
•The 1450/850 has a maximum platform height of 8 metres outdoors and 12
metres indoors.
•The maximum permissable load on the 1450/850 tower is 950kgs and evenly
distributed on each plaorm is 275kgs. This must not be exceeded over 2 work
plaorms, not including rest plaorm.
•Damaged or incorrect components should not be used.
Towers should be erected following a safe method of work, there are two approved
methods recommended by the ‘prefabricated access suppliers and manufacturers
association’ (PASMA) in co-operation with the health and safety executive (working at
height regulations).
The method used for erecting and dismantling the 1450/850 tower is the 3T METHOD
(through the trap).
This method ensures the operators erecting the tower position themselves in the trapdoor
of the platform to add or remove horizontal guardrail braces for the level above the
platform.
• A risk assessment has been done and all safety equipment is on site.
•The ground condions will take the working loads of MAT as specied.
•Always check that the MAT is vercal, (Level, slope, uneven ground etc.) if levelling is required
make sure you Adjust Legs (Part No.1026312-A2), in line with instrucons (use spirit level).
•Beware of (overhead) obstrucons – live wires, electrical apparatus or moving parts of
machinery or other.
•Wind conditions are within limits as specified. (Refer to page 5)
•Do not use boxes, ladders or other devices on the plaorm to gain addional height.
• If in doubt DO NOT ERECT.
• Check that all components are on site and that they are in good working order before use
(refer to the components and quanes shown at each stage). Auxillary equipment and safety
equipment. (ropes, etc)
•For your safety, during assembly and erecon it is recommended that temporary horizontal
guardrail braces be used.
• The tower should always be accessed from the inside using the ladder frames provided.
• Never climb up the outside.
• Do not use the guardrail braces as a rung or step.
• It is recommended that 2 persons erect this tower.
• The assembled tower should not be used as a means of access to other structures unless
suitably ed.
•Beware of horizontal forces (e.g. when using power tools on an adjacent structure), which
could generate instability or overturning of the tower.
•Maximum horizontal force 20kgs.
Before assembly or erecon of this Mobile Access Tower (MAT) please ensure that;
3
Stabilisers or outriggers and ballast shall always be ed when specied.
When using the MAT externally stabilisers must be ed.
Should ballast be required, a plaorm should be posioned on the lowest rung and the
weights should be rmly aached to it and evenly distributed. For advice on ballast contact
your supplier.
Tools and other equipment should be hauled up by a person on the platform using rope
or similar, through the trapdoor of the platform or within the tower footprint. Please see
footprint guide on page 15.
Safe working loads of plaorm and tower not to be exceeded.
• Adjust the stabilisers to provide ground clearance.
• Unlock the castor wheels.
• Move with manual force only, and only from the base.
•Beware of (overhead) obstrucons – live wires, hanging apparatus or other objects.
• Do not move with people or material on the tower.
•Do not move the assembled MAT if wind speeds exceed a moderate breeze. Relock the
castors and readjust the stabilisers once in the new posion.
• When moving the tower over rough or uneven sloping ground remove all tools.
• Do not move the assembled tower if over 4 metres high.
•Recheck that the MAT is vertical or needs readjustment of legs before ascending
(Using spirit level).
It is recommended that towers should be tied to a solid structure, when left unattended.
When es are required, they should be in accordance with table 17 of BS 5973:1990 and
table 24 of BS 5975:1982.
Always e to a solid structure.
The e frequency should be at 4 metre intervals or less vercally.
1 PIECE FOLDING TOE BOARD
Fold out over platform making sure location brakect fits securely over platform
hooks.
Raising and lowering components, tools and/or materials by rope should be
conducted within the tower base (i.e. within the area bounded by the
stabilisers). Ensure that the safe working load of the supporting decks and
the tower structure is not exceeded.
Check for enviromental changes before every use. (ie: all weather
conditions). Refer to next page for wind effects.
4
, ,
• All components should be inspected before use to ensure that they are not damaged or
broken, parcularly the welds.
•ANY damage to ANY part parcularly tubular members, castors, plaorm decking MUST
be replaced.
• Adjustable leg threads should be cleaned and lightly oiled.
•All locking claws on braces should be cleaned and the locking mechanism checked for operation.
•When storing your MAT, please ensure that all components are neatly stored and not le
where they could get damaged.
•When transporng the MAT always e the components down so that they do not move
around and get damaged.
•Should the tower be left unattended it should be tied to a suitable structure. Before using the
tower again ALWAYS check that the tower is vertical, undamaged and complete before ascending
•The MAT is not designed to be lied or suspended as a complete structure.
•Always keep this instrucon manual safe.
• Broken, damaged or incorrect componnents must never be used. The equipment shall
be quaranned and assessed for replacement repair or destrucon.
•Beware of high, gusty or moderate breeze condions in exposed areas. It is
recommended that in wind speeds over a Moderate Breeze (see Beaufort Scale below)
that work on the tower is stopped and reassessed. If the wind becomes a Strong Breeze,
(see Beaufort Scale below) the tower should be ed to a rigid structure. If the wind is
likely to reach Gale Force (see Beaufort Scale below) or over, work should be stopped
and the tower should be dismantled.
•Beware of tunnelling eect caused by open ended buildings, uncladded buildings and
building corners.
Fit the locking clips as shown in the
diagram opposite.
Wind Beaufort Scale
10 Metres above ground
Force Speed in m.p.h. Speed in knots
Moderate Breeze Raises dust and loose paper,
small branches move.
413–18 11–16
Strong Breeze Large branches in moon,
telegraph wires whistle.
625–31 22–27
Gale Force Walking is dicult, twigs
break o
trees.
839–46 34–40
5
Castor wheels should be pointed outwards at
approximately 45 degrees and locks engaged as
shown opposite.
Press to engage — li to disengage
ES
Aach a stabiliser to each corner of the tower
at approximately 45 degrees for maximum
stability and attach the clamps. Make sure
that all stabilisers are firmly in contact with
the ground before using the structure. Refer
to page 15 for full details and illustrations on
correct pratice.
THE CORRECT FITTING OF HORIZONTAL
BRACES IS IMPORTANT.
The diagrams opposite illustrate the
CORRECT brace posions.
REMEMBER: Always fit braces
DOWNWARDSor from the inside of the
tower facing OUTWARDS. NEVER
attach braces facing INWARDS.
Ensure that the brace clamp is locked as
shown in diagrams opposite. Always
make sure the brace is not clamped too
close to the weld on the frame as
indicated by the arrow shown.
Ensure all adjusting nuts are wound
down to the castor and slide them into
the bottom of the tower frame. Turn the
frame the right way up and with the aid
of a spirit level placed on the tower use
the adjusting nuts to level the structure.
DO NOT use leg adjustment to gain
additional height.
Un-Locked Locked
6
Outwards
Downwards
1. 2 RUNG FRAME
2. 2 RUNG LADDER FRAME
3. HORIZONTAL BRACE
4. STABILISER S1/S2
5. ADJUSTABLE LEG ASSEMBLY
6. TRAPDOOR PLATFORM
7. FIXED PLATFORM
8. DIAGONAL BRACE
9. FOLDING TOE-BOARD
10. 4 RUNG LADDER FRAME
9
10
4
8
1
7
7
11.4 RUNG FRAME
Illustration below shows double width tower fully assembled. Single width towers have
narrower frames (850mm wide) and do not use a fixed platform.
Aminimum of two people is required for the assembly of the 850/1450 tower. Only
climb the tower from the inside using the ladder section.
Always start building with the smallest height frames at the base of the tower:
For even platform height towers (2.2m/4.2m/6.2m etc) ALWAYS start with a 2 RUNG
FRAME.
For odd platform height towers (3.2m/5.2m/7.2m etc) ALWAYS start with a 4 RUNG
FRAME.
For even intermediate platform height towers (2.7m/4.7m/6.7m etc) ALWAYS start with
a 3 RUNG FRAME.
For odd intermediate platform height towers (3.7m/5.7m/7.7m etc) ALWAYS start with
a 2 RUNG FRAME.
Insert adjustable leg assembly (with castors
or base plates) into the base of the rung
frame.Repeat for the rung ladder frame.
Lock all castor wheels.
Aach one horizontal brace to the inside of
the rung frame just above the boom rung,
claws facing outwards. This frame will now
be self-supporng.
Posion the ladder frame as shown.
Connect the other end of the horizontal
brace to the ladder frame. Now connect the
frames using a second horizontal brace on
the opposite side locking it downwards,
this will square the tower.
Check the tower is vertical by using a spirit
level and adjust as neccessary.
.
8
The example below shows how to assemble a 6.2m working height (4.2m platform
height) tower:
Insert 4 rung frames to correspond with the 2 rung frames (see below) and
lock the locking clips (refer to page 5). Attach diagonal braces on both sides
from the 1st rung to the 3rd rung of the structure, in opposite directions.
Place a solid deck platform on the 1st rung* and a trap door platform on
the 4th rung, both on the ladder side of the structure. Slide platform fixings
(located underneath the platform) into the closed position.
*Platform can be placed at bottom of tower if required to fit platform above (as shown above).
4
9
Attach stabilisers as required for working height (see page 15). Climb the
ladder and from a protected through the trapdoor position, attach
horizontal guardrail braces to the 5th and then 6th rungs, on both sides of
the plaorm.
Never climb onto a plaorm that is not fully guardrailed. Guardrails should
be 1 and 2 rungs above plaorms in all cases.
10
Attach 2nd pair of diagonal braces following on from those fitted in step 4.
Attach the next 4 rung frames and lock clips (see below).
11
If completing the tower at this height (4.2m platform height), continue
with step 8. When building beyond this level, repeat steps 4, 5 and 6
until desired level is achieved, then complete the tower with steps 8
and 9.
12
When building the tower with a platform height of over 4.2 metres, remove the first platform
and 4 horizontal braces that accompany it and use these to complete the structure.
When building the tower with a platform height of over 8.2 metres, remove the first and third
platform from the base, along with the accompanying horizontal braces and use these to
complete structure.
Fit the final diagonal braces as shown. This stage will provide a platform
height of 4.2m. Attach diagonal braces (see below). The fixed platform
should be moved up to the 8th rung and moved across to the far side of
the structure, the trapdoor platform can now be fitted alongside it. LOCK
PLATFORM FIXINGS.
Climb up the ladder and from a protected ‘through the trapdoor’ position,
fit horizontal guardrail braces to the 9th and then the 10th rungs on both
sides of the tower.
13
Fit toe boards to all working platforms (see instructions on page 4).
14
When building the tower with a platform height of over 4.2 metres, remove the first platform
and 4 horizontal braces that accompany it and use these to complete the structure.
When building the tower with a platform height of over 8.2 metres, remove the first and third
platform from the base, along with the accompanying horizontal braces and use these to
complete structure.
The dismantling procedure should follow the assembly steps in reverse order, take
parcular aenon with regard to the removal of guardrails and plaorms.
You should ensure that you are standing in a safe position and protected by guardrails at
all times. remove diagonal braces or stabilisers prematurely.
After removing the toe-boards the operator disengages the horizontal guardrail brace
clamps furthest from the trap door. Horizontal guardrail braces are then removed with
the operator positioned through the trap door (3T) before descending to the lower level,
from where the upper platform, diagonals and frames can be removed.
Attach one stabiliser to each corner of
tower at approx. 45 degrees. Position
the lower clamp so that the lower arm is
as close to the horizontal as possible
(see opposite). Adjust the position of the
top clamp to ensure the stabiliser foot is
in firm contact with the ground. Ensure
clamps are secure.
When using the S2 stabilisers, always
extend the telescopic legs to their
maximum posion and lock into posion
with the interlock clip.
When moving the tower lock each
stabaliser leg just clear of the ground,
unlock castors ensuring area is firm and
clear of all obstructions both on the
ground and above.
Aer moving check all castors are rmly
on the ground and locked, and that the
tower is vertical. Re-position stabilisers
as explained above.
Static Stabiliser Maximum Platform Height:
Single Width 850 = 8.2m
Double Width 1450 = 8.2m
Telescopic Stabiliser Maximum Platform Height:
Single Width 850 = 8.7 - 12.2m
Double Width 1450 = 8.7 - 12.2m
WHEN DISMANTLING - always lower
them to the ground.
15
Description
Working Height (M)
Platform Height
4.2
2.2
4.7
2.7
5.2
3.2
5.7
3.7
6.2
4.2
6.7
4.7
7.2
5.2
7.7
5.7
8.2
6.2
8.7
6.7
9.2
7.2
9.7
7.7
10.2
8.2
4444 4 4 4 4 4 4 4 4 4
4444 4 4 4 44 4 4 4 4
1 1 11 1 1 1
1 1 1 1 1 1 1
11 1 111
11 1 111
1 1 2 1 223233434
112122 3 2 3 3 4 3 4
1222 23
6 6 10 10 10 10 14
3 4 5 6 7 8 9 10 11 12 13 14 15
1111111111111
Folding
44444444S1 Stabiliser
S2 Adjustable Stabiliser
Approx Tower Self-Weight (kgs) 1800 94.2 99.7 127 133 138 144 149.3 155 161 188 193 199 214.9
Approx Tower Self-Weight (kgs) 2500 104 110 144 151 157 163 169 175 181 215 221 228 244
10.7
8.7
11.2
9.2
11.7
9.7
12.2
10.2
12.7
10.7
13.2
11.2
13.7
11.7
14.2
12.2
4 4 4 4 4 4 4 4
444 4 4 4 4 4
11
11
11 1 1
111 1
45 4 55656
4 5 45 5 6 5 6
16 17 18 19 20 21 22 23
11 1 11 1
4 4 4 4 4 4 4 4
220.4 226 232 237.6 264.5 270.1 276.1 281.6
250 256 262 268 303 309 315 321
Quantity Schedule
to BS EN 1004:2004 Available in two lengths; 1.8m & 2.5m
15
4444
INTERNAL USE ONLY
1
1
1
1
1
1
16
4
Description
Working Height (M)
Platform Height
4.2
2.2
4.7
2.7
5.2
3.2
5.7
3.7
6.2
4.2
6.7
4.7
7.2
5.2
7.7
5.7
8.2
6.2
8.7
6.7
9.2
7.2
9.7
7.7
10.2
8.2
4444 4 4 4 4 4 4 4 4 4
4444 4 4 4 44 4 4 4 4
1 1 11 1 1 1
1 1 1 1 1 1 1
11 1 111
11 1 111
11212 2 3 233434
1 1 2 1 223233434
11 1 1 1 1 1 111
112222
6 6 10 10 10 14
345 6 7 8 9 10 11 12 13 14 15
Castors
300mm Threaded Adjustable Leg
2 Rung Ladder
2 Rung Frame
3 Rung Ladder
3 Rung Frame
4 Rung Ladder
4 Rung Frame
1.8m or 2.5m Fixed Platform
1.8m or 2.5m Trap Door Platform
1800 or 2500 Horizontal Brace
2100 or 2700 Diagonal Brace
Folding Toe Board
S1 Stabiliser 44444444
S2 Adjustable Stabiliser
4444
Approx Tower Self-Weight (kgs) 1800 113 119 147 154 160 167 199 206 209 214 220 228 244
Approx Tower Self-Weight (kgs) 2500 128 135 169 177 184 191 197 205 212 247 253 261 278
10.7
8.7
11.2
9.2
11.7
9.7
12.2
10.2
12.7
10.7
13.2
11.2
13.7
11.7
14.2
12.2
4 4 4 4 4 4 4 4
444 4 4 4 4 4
11
11
11 1 1
111 1
45455656
4 5 455656
1111 1 1
16 17 18 19 20 21 22 23
11111 1 1 1
4 4 4 4 4444
250 256 264 270 298 304 311 317
285 291 300 306 341 347 355 362
Quantity Schedule
to BS EN 1004:2004 Available in two lengths; 1.8m & 2.5m
INTERNAL USE ONLY
1
1
1
1
17
1 1 1 1 1 1 1 1 1 1 1 1 1
10
This manual suits for next models
1
Table of contents
