Instant Span 500 Assembly Manual

Span
500
ACCESS TOWER SYSTEM
ASSEMBLY PROCESS
1. Preparation
Locate the tower level adjusters on each leg at 10cm (4ins) from the bottom of the leg.
Unlock the interlock clips on all frames. When installed, always move the interlock
clip to the "locked" position.
Sort the braces into horizontal and diagonal braces - the diagonals are slightly longer.
Unlock the brace locks.
2. Base
Push the four leg assemblies into a pair of 2-rung (1m) or 4-rung (2m) frames.
Follow the erection procedures as shown (Section 4). It is important to follow the
bracing pattern precisely. The tower shown in the build procedure is a double
width tower. For Single Width Towers, see notes section.
Note the locking and unlocking position for the castors as shown here.
3. Locking down the platform
A windlock clip is installed on the platform at the hook. This is locked as shown here.
Base
The choice of base frame for your SPAN 500 tower depends on the platform height required: See table 1 below:
Platform height (m) Base Frame
2, 4, 6, 8, 10, 12 1m (2 rung)
3, 5, 7, 9, 11 2m (4 rung)
4. BUILD PROCESS
1
2
Insert castors and Insert one 4 rung
adjustable legs into the
standard frame and one
base frame (see table 1
4 rung ladder frame into
on selecting the base
the base frames and
frame). Position the
lock. Clip diagonal
ladder frame as shown
braces in opposing
and clip one horizontal
directions from the 1
brace onto the vertical
rd th
3 to 5 rungs. Check
member just above the
base unit with a spirit
st
1 rung, with claw
level in both vertical and
facing outwards. Clip the
nd horizontal directions.
2 horizontal brace
onto the cross tube
(rung) on the opposite
side facing down.
6
7
Attach the next set of Install next platform at 4
rungs above the last
frames and lock.
one. Use the 3T method,
Continue diagonal
install 2 braces on both
bracing in a zig-zag
sides of platform before
pattern as shown.
climbing onto platform.
Continue with steps 6
and 7 until working
platform height is
reached.
DISMANTLING / MOVING TOWERS
To Dismantle, follow the build process but in reverse order noting the
following.
• To remove the guardrail frames or braces, first unlock the hook at the
end away from the trapdoor.
• Sitting through the trapdoor, unlock the near end hook and remove
the brace.
To Move the tower to a new position, first prepare the tower.
This Assembly guide is designed to provide you with step by step instructions to ensure your system is
erected easily and safely using the 3T (Through the Trap) Safety Standard. Before assembly please read
the safety notes carefully.
Span 500 is a mobile access tower system complying with EN 1004 and WAHR, with vertical ladder access, designed for Class 2 loading.
Parts required
One frame and one ladder frame
One frame and one ladder frame
3
Fit stabiliser to tower -
see separate section on
stabilisers. Add a fixed
st
platform to 1 rung in
front of the ladder.
st
to
8
Once working height is
reached, move fixed
st
platform from 1 rung to
working level, opposite
to ladder. Fit trapdoor
platform at ladder. Guard
with horizonal braces
using the 3T method.
• Wind speed should not exceed 29 km/hr (force 4).
• Release the castor brakes.
• Raise the stabiliser feet only enough to clear obstructions.
• Ensure tower is empty (material and personnel). Move the tower
manually by applying force at the base - do not use machinery to push
or pull the tower. Once moved - prepare the tower for use.
• Check all castors and stabilisers are in firm contact with the ground.
• Check tower is vertical (spirit level) and adjust legs as required.
• Reapply the castor brakes.
Unlocked
Locked
Unlocked
Locked
Unlocked
Locked
Unlocked Locked
Table 1
5
4
Fit trapdoor platform to Using the 3T method,
th
4 rung of tower in front position yourself in the
of the ladder. Ensure hatch and attach
trapdoor opens horizontal braces to the
outwards. 5th and 6th rung on both
sides of the platform. Do
not stand on the
platform until it is fully
guarded.
9
Once guarded, climb
onto the platform and fit
toeboard set to
complete the tower
build.
Assembly Guide
ASSEMBLY COMPONENTS
4m Platform Height Tower 3m Platform Height Tower
Assembly Assembly
1. Toeboard Set 1.
2. Diagonal Brace 2.
3. 2m Standard Frame 3.
4. Horizontal Brace 4.
5. Stabiliser 5.
6. 1m Standard Frame 6.
7. Adjustable Leg 7.
8. Castor 8.
9. 1m Ladder Frame 9.
10. 2m Ladder Frame
11. Fixed and Trapdoor Platform
Safe Working Loads and Working Heights
(WAHR)
The safe working load at each level of platform is 275
Kg evenly distributed, regardless of whether one or
two platforms are installed. Therefore, even if two
platforms are installed side by side, total cumulative
load shall not exceed 275Kg distributed.
The total loading on the tower structure should not
exceed 720kg. Normal maximum platform height for
indoor use is 12m for Double Width, and 8m for
Single Width. For outdoor use, the maximum height is
8m for Single and Double Widths.
3T Safety Standard - THROUGH THE TRAP
This is an approved method of tower construction
which, if carried out by a competent person,
complies with all current safety legislation.
Construction - basic principles
• Always install the trapdoor platform over the
ladder (if one is fitted).
• Ensure the trapdoor hinges to the
the tower (not the centre).
• Once the platform has been installed, climb, using
the approved method and
TRAPDOOR OPENING.
• While seated, attach horizontal braces to the
frames to form guardrails on
THE PLATFORM.
• See assembly instructions for specific placement
of guardrails.
• 2 braces are normally required each side -
although bracing frames can be used on the
outside if desired or specified in the instructions.
• Only when the platform is fully guarded is it safe
to stand up.
Dismantling
• Unlock the brace ends furthest away from the
trapdoor.
• DO NOT REMOVE BRACES UNTIL SITTING IN
THE TRAPDOOR.
REMEMBER - NEVER STAND ON
AN UNGUARDED PLATFORM
EN1004-3-8/12-XXCD
Toeboard Set
Diagonal Brace
Stabiliser
2m Standard Frame
Adjustable Leg
Castor
Horizontal Brace
2m Ladder Frame
Fixed and Trapdoor Platform
OUTSIDE of
SIT IN THE
BOTH SIDES OF