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WARNING

NEVER FORGET TO LOCK THE 

CASTOR WHEELS

02

USAGE ADVICE

USAGE ADVICE

DESCRIPTION:

Through The Trapdoor (3T) Method:

The 

3T

 method of construction is an approved method of assembly and it minimizes the risk of 

a fall from height. The erector can complete an ‘assembly or access’ platform level from which 

the ‘next lift’ of frames, braces and platform is added, until the final working height of the tower 

is achieved. By following the 

3T

 method, the erector sits through the hatch of the platform with 

their feet resting on the frame rungs. In this position the erector can attach the guardrail braces. 

Once guard-rails are secured in position the erector can climb onto the platform and continue 

constructing the next level.

Compliances:

The Affix 

MAST

 Tower structure and its components have been designed in accordance with 

BS1139-6: 2014.

The Affix 

MAST 

Series Stair Tower are versatile and user-friendly  and safe portable access 

solution which is specifically designed for use on commercial and domestic staircases. It has a 

compact width of just 0.9 Mtr which enables easy transportation through standard doorways 

and stairways. It gives a work platform for use by a maximum of two people, with weight evenly 

distributed across the platform. The tower can be easily erected and with highly customizable 

assembly it meets almost all the site constraints and provides safe and efficient working 

platform. The key safety feature is the smart locking claws provided for the horizontal and 

diagonal bracings. It allows an instant lock-up performed by single hand use, however, with the 

reverse unlocking plug, two hands are needed to unplug the bracing.

The information and instructions included in this manual are provided to help get the best 

possible service from your MAST Series Stair Tower. This user guide provides you with step by 

step instructions to ensure your system is assembled easily and safely, using the 3T (Through 

the Trapdoor) method.

MAST620_AM-3T_V3.0

Содержание BS1139-6

Страница 1: ...Assembly Manual Stair Towers MAST Series BS1139 6 2014 No CE 21 22 046...

Страница 2: ...r ISO 9001 accredited facility This user guide provides you with step by step instructions to ensure your system is assembled easily and safely using the 3T Through the Trapdoor method This user guide...

Страница 3: ...tile and user friendly and safe portable access solution which is specifically designed for use on commercial and domestic staircases It has a compact width of just 0 9 Mtr which enables easy transpor...

Страница 4: ...ways be fitted when specified Use the stabilizer shown on the component list according to the tower height Outdoor scaffold towers should wherever possible be secured to a building or fixed structure...

Страница 5: ...Safety Checklist Air speed and resultant action to be taken 3T Method Checklist Beufort Scale 0 1 mph 12 mph 17 mph 25 mph 40 mph Calm smoke rises easily upwards No action needed Cease work No action...

Страница 6: ...locking triggers in the bracing hooks such that they are working properly Sort the braces into horizontal and diagonal braces the diagonals are slightly longer Also note that the braces are different...

Страница 7: ...rson should hold the frame in upright position during this step Hook both the Diagonal Braces to the 1st Rung of both the 1 level 6 rungs Walk through Frames on both the sides Step 2 1 Step 2 1 Step 2...

Страница 8: ...ough frame and the other side to the 5th rung towards the lower side 6 rungs 1st level walk through frame Step 4 Use a spirit level on the horizontal braces and the frame rungs to check the level Adju...

Страница 9: ...ing instructions refer to the Clamping Instructions section on Page 17 Hook the Temporary Trapdoor Platform to the 6th rung of the walkthrough frame towards the lower side of the structure and the 3rd...

Страница 10: ...section on Page 17 09 ASSEMBLY Step 8 1 Step 8 1 Hook one side of the standard Diagonal brace to the 1st rung of the 1st level walkthrough frame towards the upper side and the other side of the brace...

Страница 11: ...no 19 Step 9 1 Step 9 1 Clamp the 2 Stabilizers on the 2 vertical posts of the frame towards the upper side of the structure as instructed in detail on Page no 19 Step 9 2 Step 9 2 Step 9 1 Step 9 1 C...

Страница 12: ...de and the other side of the platform to the 4th rung of the 2nd level 8 rungs Span frame towards the lower side Step 10 1 Step 10 1 Hook the standard Horizontal braces pair to the 7th Rung of 1st lev...

Страница 13: ...n frame towards the lower side 12 ASSEMBLY Using the 3T method standing on the ladder and leaning back against the edge of the trapdoor aperture Hook the lower pair of standard Horizontal Braces Mid R...

Страница 14: ...ep 14 2 13 ASSEMBLY THIRD LEVEL Step 15 1 Step 15 1 Hook one side of the standard Diagonal brace to the 4th rung of the 2nd level 4 rungs span frame towards the upper side and the other side of the br...

Страница 15: ...17 2 Step 17 2 Hook the upper pair of standard Horizontal braces Guard Rail to the 8th rung of 3rd level span frames on both the sides of the structure 14 ASSEMBLY Hook the Working Trapdoor Platform o...

Страница 16: ...4 corners of the working platform level around the working platform For more details refer to Toe board assembly details on Page 16 Step 18 1 Step 18 1 Insert the wooden toe boards in the toe board ho...

Страница 17: ...d End ToeBoard 16 ASSEMBLY Fix the claw of the Toeboard TB on the Rungs facing each other as shown in the figure Then insert the Side Toeboard and the End Toeboard in the respective toeboard slots as...

Страница 18: ...ensure the Spring Clips are in the lock position after inserting the upper frame in the Spigot To insert unlock the Spring Clip Spring Clip Spigot Unlock Position Lock Position Clamping Instructions...

Страница 19: ...ST200 300 450 600 Stabilizer PT200 250 Trapdoor Platform BD200 250 BH200 250 Diagonal Brace Horizontal Brace 18 COMPONENTS JA500 FW20900 FM20900 FM10900 BT200 250 ToeBoard Set MAST620_AM 3T_V3 0...

Страница 20: ...tighten the upper clamp of the stabilizer on each corner vertical posts at a height where the foot is touching the ground Position the clamp of the lower arm such that the lower arm is as horizontal...

Страница 21: ...Comply To Independently tested for use Compliant to 3T Assembly process Safe working load on the platform is 200kgs Sq Mtr evenly distributed Maximum permissible distributed load on the tower 600 Kgs...

Страница 22: ...gonal Braces Stabilizer Stabilizer Stabilizer Stabilizer Trapdoor Platform Toe Board 5 0 3 0 104 2 1 1 4 8 4 420 4 0 7 0 5 0 2 3 1 4 12 8 0 0 4 0 0 0 0 4 4 4 0 0 0 0 0 0 4 3 1 2 1 1 1 1 125 620 6 0 10...

Страница 23: ...BS1139 6 2014 Certification by TUV India 22 ASSEMBLY ASSEMBLY MAST620_AM 3T_V3 0...

Страница 24: ...affixscaffoldin https www linkedin com company affix scaffolding llc https www linkedin com company affix scaffolding llc https qrco de bcPyx6 To Check Assembly Video SCAN ME PO Box No 201633 Doha Qa...

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