Operation - probst SRG-1,5 Betriebsanleitung

Operation

6 Operation
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The manholes must be of sufficient construction to withstand clamping force during transport.
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Only transport sufficiently cemented and fracture-free manholes / conical manholes, otherwise there is a danger
of the load, or part of it falling!
•
Do not transport wet, flat, dirty or even icy manholes / conical manholes.
•
In the case of coated manholes use the rubber-coated Pipe Suspension Grab, otherwise the coefficient of
friction is too low: Danger!
•
There are numerous different models of manholes on the market. Make sure that you are using the right model
of Pipe Suspension Grab. (Models SVZ 1.5 and SVZ 3 may not be used for manholes acc. to DIN 4034 P1)
Following the adjustment to suit the outside diameter of the manhole and the wall thickness
according to Paragraph 3.1 the first manhole can be lifted:
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Position jaws equally onto the manhole (articulated lever
must be pulled inwards so that all chains are equally
loaded). The suspension ring must be positioned above the
centre of gravity.
•
Ensure that the chains are not twisted and may be easily
pulled through the jaws.
•
Adjust the opening width of all jaws as tight as possible.
•
Now slowly lift the manhole 10 cm: the angle lever must not
swivel towards the limit stop. If this happens the opening
width must be adjusted more precisely. If this procedure is
not followed there is a danger of the load falling!
•
After controlling the tight and safe fit of the jaws onto the
manhole, the manhole may be transported just above the
ground. If this procedure is not followed: safety hazard!
•
Always lift jaws vertically as opposed to lifting at an angle.
Distortion and danger of falling!
•
After setting down the manholes and the releasing of the
chains, lift off the jaws.
Do not sway the load during transport: danger
of releasing the load!
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Fig. 5
Fig. 6
GB