48
GB
beam rotates along its working length
(Fig. 8, item 24).
If slippage is observed, immediately stop
the jib crane rotation, lower the load to the
ground, reposition the pivot and properly
tighten them on the scaffolding tube.
- No deformation on the ground or on the
working platform is observed when the
load is set down.
7.3 Installation on frame
This installation configuration is used when the
lost height of the winch is not compatible with
the lifting height (Fig. 11). For this installation,
the installer must have:
• 1 altotir™ winch, standard delivery,
• 1 adjustable limit stop (Fig. 9),
• 2 idler pulleys,
• 1 tubular anchoring structure with
diameter of 49 to 50 mm (Fig. 11) and
whose mechanical strength has been
verified by a qualified technician.
For this installation configuration, the winch
is turned over; the mounting clamps, for
mounting on tube, are under the winch and
the lifting wire rope comes out toward the top
in the direction of the pulley located directly
in line with the winch.
7.3.1 Checks before installation
7.3.1.1 Host structure checks
IMPORTANT:
Before installing, check that:
• The altotir™ winch anchoring tube
(Fig. 11, item 2), is sufficiently strong.
In particular, the anchoring tube must be
made of steel and have a diameter of
49 to 50 mm. It must not show any visible
signs of corrosion, bending, cracks,
rupture or impact marks.
• The host structure next to the idler pulley
rigging (Fig. 11, items 4 and 5) complies
with the applicable regulations as con -
cerns stability and mechanical strength.
• The working load limit of the idler pulleys
is compatible with the installation
configuration and the working load limit
of the winch (Fig. 11, items 4 and 5)
in compliance with the applicable regu -
lations.
• The idler pulleys are compatible with the
diameter of the winch wire rope in com -
pliance with the applicable regu lations.
• The idler pulley anchoring point, winch
side (Fig. 11, item 4) is properly situated
in line with the warping drum of the
altotir™ winch (Fig. 1, item 3).
7.3.1.2 Environment checks
Before conducting any installation, perform
the general checks detailed in section 7.1.2.
7.3.1.3 Winch checks
• Perform the general checks detailed in
section 7.1.3.
• Check that the adjustable limit stop
complies with the standard delivery
characteristics as described in this
manual.
7.3.2 Installing the altotir™ winch
Tools required:
• 1 No. 17 torque wrench 17
• One hex key, 8 mm
The installation procedure comprises
3 phases:
Phase 1: Assembling the altotir™ winch on the
frame (Fig.11).
• Position the anchoring tube (Fig. 11,
item 2) of the frame in the slots provided
for this purpose on the fastening
crossmember (Fig. 10, item 7).
• Fit the clamps (Fig. 10, item 8) on the
studs (Fig. 10, item 13).
• Manually tighten the 4 clamp fastening
nuts (Fig. 10, item 14) uniformly.
• Tighten the 4 nuts to a torque of
3+/-1m. daN using the No. 17 torque
wrench.
• Check that the locking flanges (Fig. 8,
item 8) as well as the anchoring cross
