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SAFETY FIRST
This document is to be used in conjunction with the full user guide available from the
manufacturer or to download at bossaccesstowers.com/literature.
Safe use
Please read this guide carefully. Please note that diagrams are for
illustrative purposes only.
•
Check that all components are onsite, undamaged and that they are functioning
correctly - (refer to Checklist and Quantity Schedules in the user guide). Damaged
or incorrect components should not be used.
•
Check ground on which tower is to be erected and moved is capable of supporting
the tower.
•
The safe working load is 225kg (500lbs), per platform level, uniformly distributed
up to a maximum of 720kgs (1580lbs), per tower (including self-weight).
•
Beware of horizontal forces (e.g. power tools) which could generate instability.
•
Maximum horizontal force equals 30kg.
•
Towers must only ever be climbed from the inside and using the rungs directly
below the trapdoor.
•
It is recommended that towers should be tied to a solid structure when left
unattended.
•
Only use the adjustable legs to level the tower and not to gain extra height.
Adjustable legs should only ever be extended to minimum amount required to
level the tower.
Lifting of equipment
•
Tower components should be lifted using a reliable lifting material (e.g. strong
rope), employing a reliable knot (e.g. clove hitch), to ensure safe fastening and
always lift within the footprint of the tower.
•
Assembled mobile towers should not be lifted with a crane or other lifting device.
•
Ensure the safe working load of the supporting decks and the tower structure is
not exceeded.
Movement
•
The tower should only be moved by manual effort, and only from the base.
•
No person or materials should be on the tower during movement.
•
Caution should be exercised when wheeling a tower over rough, uneven or
sloping ground, taking care to unlock and lock castors. If stabilisers are fitted,
they should only be lifted a maximum of 25mm above the ground to clear ground
obstructions.
•
The overall height of the tower when being moved, should not exceed 2.5 times
the minimum base dimensions, or 4 metres overall height with stabilisers fitted in
the correct position (whichever is the smallest). If stabilisers are not fitted in the
standard position, the overall height of the tower should not exceed 2m.
•
Before use, check the tower is still correct and complete.
•
After every movement of the tower use a spirit level to check that it is vertical and
level to within 10mm/m and set the adjustable legs as required.
•
Do not move the tower in wind speeds over 7.7 metres per second
(17 mph).
•
Mobile access towers are not designed to be lifted or suspended.
NOTE: If the tower is moved, you MUST inspect prior to use.
Ties
For further information on tying-in a tower please contact your supplier or the
manufacturer.
Maintenance - storage - transport
All components and their parts should be regularly inspected to identify damage,
particularly to joints. Lost or broken parts should be replaced, and any tubing with
indentation greater than 5mm must not be used.
QUANTITY SCHEDULE 850 WIDTH TOWERS
BoSS Zone:1 850 to EN 1004: Available in 2 lengths - 1.8m and 2.5m.
Internal/external use - towers under 2.5m are outside of the scope of EN 1004
Internal or external use
Component
Working height (m)
3.2
3.7
Platform height (m)
1.2
1.7
125/150/200mm Castor
4
4
Adjustable Leg
4
4
850 2 Rung Ladder Frame
1
850 2 Rung Span Frame
1
850 3 Rung Ladder Frame
1
850 3 Rung Span Frame
1
850 4 Rung Ladder Frame
1
850 4 Rung Span Frame
1
1.8m/2.5m Trap Deck
1
1
1.8m/2.5m Horizontal Brace (Red)
6
6
2.1m/2.7m Diagonal Brace (Blue)
2
3
1.8m/2.5m Side Toe Board
2
2
0.6m End Toe Board
2
2
Small Stabiliser
Large Stabiliser
1
Ballast Required (External) 1.8m
Ballast Required (External) 2.5m
1
Total Tower Self-Weight (kgs) - 1.8m
80
92
Total Tower Self-Weight (kgs) - 2.5m
92
104
Max Tower Load 720
720
Max Safe Load (kgs) - 1.8m 640
628
Max Safe Load (kgs) - 2.5m 628
616
Stabilisers should always be fitted when specified.
NOTE: Above 8.2m it is necessary to reposition platforms during the assembly and dismantling process to reduce the self-weight of the tower and optimise the maximum safe working load.
QUANTITY SCHEDULE 1450 WIDTH TOWERS
BoSS Zone:1 1450 to EN 1004: Available in 2 lengths - 1.8m and 2.5m.
Internal/external use - towers under 2.5m are outside of the scope of EN 1004
Internal or external use
Component
Working height (m)
3.2
3.7
Platform height
1.2
1.7
(m)
125/150/200mm Castor
4
4
Adjustable Leg
4
4
1450 2 Rung Ladder Frame
1
1450 2 Rung Span Frame
1
1450 3 Rung Ladder Frame
1
1450 3 Rung Span Frame
1
1450 4 Rung Ladder Frame
1
1450 4 Rung Span Frame
1
1.8m/2.5m Fixed Deck
1
1
1.8m /2.5m Trap Deck
1
1
1.8m/2.5m Horizontal Brace (Red)
6
6
2.1m/2.7m Diagonal Brace (Blue)
2
3
1.8m/2.5m Side Toe Board
2
2
1.2m End Toe Board
2
2
Small Stabiliser
Large Stabiliser
Total Tower Self-Weight (kgs) - 1.8m 112
128
Total Tower Self-Weight (kgs) - 2.5m 130
146
Max Tower Load 720
720
Max Safe Load (kgs) - 1.8m 610
593
Max Safe Load (kgs) - 2.5m 592
575
Stabilisers should always be fitted when specified.
NOTE: Above 8.2m it is necessary to reposition platforms during the assembly and dismantling process to reduce the self-weight of the tower and optimise the maximum safe working load.
PRE-USE SAFETY CHECKLIST
Description
Tower structure upright and level
Castors locked and legs correctly adjusted
Diagonal braces fitted
Stabilisers fitted as specified
Platforms located and wind-locks engaged
Interlock clips engaged
Toe boards located
Guardrails fitted correctly and positively locked. See illustration below
Ensure horizontal braces and guardrails are fitted correctly.
Check environmental changes have not affected the tower, and the effective support of
the stabilisers. Always fit as shown. Refer to this checklist before using each time.
Check frame interlock clips are locked. See illustration below:
1
Spring
Ll ave de
r eso r t e
Clip
2
Espita
Spigot
Ensure interlock clips on frame members are in the 'locked' position.
Ensure wind-locks are engaged before moving onto the deck levels.
4.2
4.7
5.2
5.7
6.2
6.7
7.2
7.7
8.2
8.7
2.2
2.7
3.2
3.7
4.2
4.7
5.2
5.7
6.2
6.7
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
2
2
3
2
3
3
1
1
2
1
2
2
3
2
3
3
1
2
2
2
2
3
3
3
3
4
6
6
10
10
10
10
14
14
14
14
3
4
5
6
7
8
9
10
11
12
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
4
4
4
4
4
4
4
4
4
4
113
138
151
163
168
195
208
220
226
250
126
156
172
184
189
223
239
251
256
287
720
720
720
720
720
720
720
720
720
720
607
582
569
557
552
525
512
500
494
470
594
564
548
536
531
497
481
469
464
433
4.2
4.7
5.2
5.7
6.2
6.7
7.2
7.7
8.2
8.7
2.2
2.7
3.2
3.7
4.2
4.7
5.2
5.7
6.2
6.7
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
2
2
3
2
3
3
1
1
2
1
2
2
3
2
3
3
1
2
2
2
2
3
3
3
3
4
1
1
2
2
2
2
3
3
3
3
6
6
10
10
10
10
14
14
14
14
3
4
5
6
7
8
9
10
11
12
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
4
4
4
4
4
4
4
4
4
133
177
211
228
235
260
294
311
321
346
152
201
244
261
269
300
342
359
370
401
720
720
720
720
720
720
720
720
720
720
588
545
510
494
486
462
427
411
400
375
570
520
477
460
453
422
379
362
351
320
Yes
3
PN03304300
©2017 WernerCo Rev. 12/17
Internal use only
9.2
9.7
10.2 10.7 11.2
11.7 12.2 12.7 13.2 13.7 14.2
7.2
7.7
8.2
8.7
9.2
9.7
10.2 10.7 11.2
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
4
3
4
4
5
4
5
5
6
4
3
4
4
5
4
5
5
6
4
4
4
5
5
5
5
6
6
18
18
18
18
22
22
22
22
26
13
14
15
16
17
18
19
20
21
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
4
4
4
4
4
4
4
4
4
25
50
75
263
275
280
304
317
329
335
359
372
327
365
395
350
366
378
384
414
430
720
720
720
720
720
720
720
720
720
457
445
440
416
403
391
385
361
348
393
355
325
370
354
342
336
306
290
Internal use only
9.2
9.7
10.2 10.7 11.2
11.7 12.2 12.7 13.2 13.7 14.2
7.2
7.7
8.2
8.7
9.2
9.7
10.2 10.7 11.2
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
4
3
4
4
5
4
5
5
6
4
3
4
4
5
4
5
5
6
4
4
4
3
3
3
3
4
4
4
4
4
3
3
3
3
3
4
18
18
18
18
22
22
22
22
26
13
14
15
16
17
18
19
20
21
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
4
4
4
4
4
4
4
4
4
380
397
404
376
391
408
415
440
474
444
460
468
428
446
463
471
501
544
720
720
720
720
720
720
720
720
720
341
324
317
345
330
313
306
281
247
278
261
253
293
275
259
251
220
177
3T - Through The Trapdoor Method
COMPONENTS
4 Rung Ladder Frame
Horizontal Brace
4 Rung
11.7 12.2
Span Frame
4
4
4
4
Side Toe board
1
1
1
1
1
1
Platform
5
6
(Fixed and
5
6
Trapdoor
6
6
Decks)
26
26
22
23
2
2
Diagonal
2
2
Brace
4
4
384
389
442
447
Stabiliser
720
720
336
331
278
273
2 Rung
Frame
11.7 12.2
4
4
4
4
1
1
Castor
1
1
1
1
5
6
5
6
4
4
4
4
26
26
22
23
2
2
2
2
4
4
491
498
561
569
720
720
230
223
160
153
ZONE:1
Mobile Fibreglass Tower
850/1450 Ladderspan
QUICK GUIDE
End Toe Board
2 Rung
Ladder
Adjustable
Frame
Leg
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Related Manuals for Boss ZON
Summary of Contents for Boss ZON
- Page 1 ©2017 WernerCo Rev. 12/17 QUANTITY SCHEDULE 850 WIDTH TOWERS COMPONENTS BoSS Zone:1 850 to EN 1004: Available in 2 lengths - 1.8m and 2.5m. Internal/external use - towers under 2.5m are outside of the scope of EN 1004 4 Rung Ladder Frame...
- Page 2 Wind description Beaufort scale Beaufort no. Speed in mph Speed in m/sec The manufacturer recommends that two persons are used to build BoSS Towers. Above Where all three frame heights Medium breeze Raises dust and loose paper, twigs snap off...
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