XSL Rigging components
3.9 B2467.072 Crank lever hoist
With XSL line arrays in Compression mode, we recommend the use
of the B2447.072 Crank lever hoist in connection with the d&b
XSL Compression set to manually curve (compress) the array.
The lever hoist provides a compression force of up to 0.75 ton
(7.5 kN) which corresponds to the maximum permitted
compression force.
Apart from the gear housing, load chain and hook, the lever hoist
consists of the following controls and indicators:
[3.1]
Free chain knob
[3.2]
Lever
[3.3]
Pull-out crank:
1. Slightly lift the handle to unlock it.
2. Fold out the handle until it clicks into place.
3. To return the handle back to its upright position,
simply pull the handle outwards and fold it back.
[3.4]
Lever mode selector:
1. Pull down the lever to unlock it.
2. Turn it to the desired lever mode and release the
lever.
The lever automatically snaps back into its lock
position.
[3.5]
Lever mode indicator:
: Neutral - free chaining.
: Lifting - clockwise.
: Lowering - counter clockwise.
3.9.1 Operation
Free chaining operation
In free chaining mode, the brake is released and the load chain
can be freely pulled through the hoist in either direction to its
required length.
Þ
Set the lever mode selector
[3.4] to the neutral ( ) position.
↳During free chaining operation, pull the chain slowly and
continuously.
Load operation
Set the lever mode selector
[3.4] to the desired position.
When operating the lever with the lever mode selector set to the
lifting ( ) or the lowering ( ) position, the hoist performs as
follows:
▪ During lifting and lowering operations, braking is always
applied.
▪ In lifting mode, the tightened mechanical brake supports the
load on the pawls when the lever stops.
▪ In lowering mode, lever operation un-tightens the mechanical
brake and lowers the load chain. When the lever stops, the
mechanical brake is tightened again and supports the load
instantly.
d&b XSL Rigging manual 1.1 en
- preliminary -
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