Boss ZON Quick Manual
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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.
ZONE:1
PN03304300
4 Rung Ladder Frame
Horizontal Brace
4 Rung
Span Frame
Side Toe board
Platform
(Fixed and
Trapdoor
Decks)
Diagonal
Brace
Stabiliser
2 Rung
Frame
Castor
Adjustable
Leg
2 Rung
Ladder
Frame
End Toe Board
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
Stabilisers should always be tted when specied.
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.
Stabilisers should always be tted when specied.
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.
Description Yes
Tower structure upright and level
Castors locked and legs correctly adjusted
Diagonal braces tted
Stabilisers tted as specied
Platforms located and wind-locks engaged
Interlock clips engaged
Toe boards located
Guardrails tted correctly and positively locked. See illustration below
Llave de
resorte
Espita
Spring
Clip
Spigot
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3
Check frame interlock clips are locked. See illustration below:
Check environmental changes have not affected the tower, and the effective support of
the stabilisers. Always t as shown. Refer to this checklist before using each time.
Ensure horizontal braces and guardrails are tted correctly.
Ensure interlock clips on frame members are in the ‘locked’ position.
Ensure wind-locks are engaged before moving onto the deck levels.
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 Internal use only
Component Working height (m) 3.2 3.7 4.2 4.7 5.2 5.7 6.2 6.7 7.2 7.7 8.2 8.7 9.2 9.7 10.2 10.7 11.2 11.7 12.2 12.7 13.2 13.7 14.2
1.2 1.7 2.2 2.7 3.2 3.7 4.2 4.7 5.2 5.7 6.2 6.7 7.2 7.7 8.2 8.7 9.2 9.7 10.2 10.7 11.2 11.7 12.2
Platform height (m)
125/150/200mm Castor 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
Adjustable Leg 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
850 2 Rung Ladder Frame 1 1 1 1 1 1 1 1 1 1 1 1
850 2 Rung Span Frame 1 1 1 1 1 1 1 1 1 1 1 1
850 3 Rung Ladder Frame 1 1 1 1 1 1 1 1 1 1 1
850 3 Rung Span Frame 1 1 1 1 1 1 1 1 1 1 1
850 4 Rung Ladder Frame 1 1 1 2 1 2 2 3 2 3 3 4 3 4 4 5 4 5 5 6 5 6
850 4 Rung Span Frame 1 1 1 2 1 2 2 3 2 3 3 4 3 4 4 5 4 5 5 6 5 6
1.8m/2.5m Trap Deck 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 5 5 5 5 6 6 6 6
1.8m/2.5m Horizontal Brace (Red) 6 6 6 6 10 10 10 10 14 14 14 14 18 18 18 18 22 22 22 22 26 26 26
2.1m/2.7m Diagonal Brace (Blue) 2 3 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
1.8m/2.5m Side Toe Board 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2
0.6m End Toe Board 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2
Small Stabiliser 4 4 4 4 4
Large Stabiliser 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
Ballast Required (External) 1.8m
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Ballast Required (External) 2.5m 1 25 50 75
Total Tower Self-Weight (kgs) - 1.8m
80 92 113 138 151 163 168 195 208 220 226 250 263 275 280 304 317 329 335 359 372 384 389
Total Tower Self-Weight (kgs) - 2.5m 92 104 126 156 172 184 189 223 239 251 256 287 327 365 395 350 366 378 384 414 430 442 447
Max Tower Load 720 720 720 720 720 720 720 720 720 720 720 720 720 720 720 720 720 720 720 720 720 720 720
Max Safe Load (kgs) - 1.8m 640 628 607 582 569 557 552 525 512 500 494 470 457 445 440 416 403 391 385 361 348 336 331
Max Safe Load (kgs) - 2.5m 628 616 594 564 548 536 531 497 481 469 464 433 393 355 325 370 354 342 336 306 290 278 273
Internal or external use Internal use only
Component Working height (m) 3.2 3.7 4.2 4.7 5.2 5.7 6.2 6.7 7.2 7.7 8.2 8.7 9.2 9.7 10.2 10.7 11.2 11.7 12.2 12.7 13.2 13.7 14.2
1.2 1.7 2.2 2.7 3.2 3.7 4.2 4.7 5.2 5.7 6.2 6.7 7.2 7.7 8.2 8.7 9.2 9.7 10.2 10.7 11.2 11.7 12.2Platform height
(m)
125/150/200mm Castor 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
Adjustable Leg 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
1450 2 Rung Ladder Frame 1 1 1 1 1 1 1 1 1 1 1 1
1450 2 Rung Span Frame 1 1 1 1 1 1 1 1 1 1 1 1
1450 3 Rung Ladder Frame 1 1 1 1 1 1 1 1 1 1 1
1450 3 Rung Span Frame 1 1 1 1 1 1 1 1 1 1 1
1450 4 Rung Ladder Frame 1 1 1 2 1 2 2 3 2 3 3 4 3 4 4 5 4 5 5 6 5 6
1450 4 Rung Span Frame 1 1 1 2 1 2 2 3 2 3 3 4 3 4 4 5 4 5 5 6 5 6
1.8m/2.5m Fixed Deck 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 3 3 3 3 4 4 4 4
1.8m /2.5m Trap Deck 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 3 3 3 3 3 4 4 4
1.8m/2.5m Horizontal Brace (Red) 6 6 6 6 10 10 10 10 14 14 14 14 18 18 18 18 22 22 22 22 26 26 26
2.1m/2.7m Diagonal Brace (Blue) 2 3 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
1.8m/2.5m Side Toe Board 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2
1.2m End Toe Board 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2
Small Stabiliser 4 4 4 4 4 4 4
Large Stabiliser 4 4 4 4 4 4 4 4 4 4 4 4 4
Total Tower Self-Weight (kgs) - 1.8m 112 128 133 177 211 228 235 260 294 311 321 346 380 397 404 376 391 408 415 440 474 491 498
Total Tower Self-Weight (kgs) - 2.5m 130 146 152 201 244 261 269 300 342 359 370 401 444 460 468 428 446 463 471 501 544 561 569
Max Tower Load 720 720 720 720 720 720 720 720 720 720 720 720 720 720 720 720 720 720 720 720 720 720 720
Max Safe Load (kgs) - 1.8m 610 593 588 545 510 494 486 462 427 411 400 375 341 324 317 345 330 313 306 281 247 230 223
Max Safe Load (kgs) - 2.5m 592 575 570 520 477 460 453 422 379 362 351 320 278 261 253 293 275 259 251 220 177 160 153
©2017 WernerCo Rev. 12/17
QUICK GUIDE
PRE-USE SAFETY CHECKLISTSAFETY FIRST
Mobile Fibreglass Tower
850/1450 Ladderspan
3T - Through The Trapdoor Method
QUANTITY SCHEDULE 850 WIDTH TOWERS COMPONENTS
QUANTITY SCHEDULE 1450 WIDTH TOWERS
PN03304300 BoSS_DL_Folded_Zone1_Quick_Guide rev1217.indd 1 11/12/2017 15:32