Hilti NURON NCV 4-22 Manual page 25

Comply with the national regulations for working at heights.
As drop arrester for this product, use only the Hilti tool tether #2261971.
▶ Use the loop to secure the tool tether to the product
as shown in the illustration. Check that it holds
securely.
▶ Secure the carabiner to a load-bearing structure.
Check that the carabiner holds securely.
Comply with the operating instructions of the
Hilti tool tether.
5.5 Installing flexible shaft (vibratory poker)
1. Remove the protective cap.
2. Insert the square drive of the flexible shaft into the spindle.
▶ The flange of the flexible shaft must be fully seated on the housing.
3. Tighten the union nut by turning it counter-clockwise.
6 Operation
6.1 Switching on and off
1. Set the switch-on interlock to
2. To switch the product on, operate the control switch.
3. To switch the product off, release the control switch.
4. Set the switch-on interlock to
Operate the switch-on interlock only when the control switch is not pressed.
6.2 Notes on compacting fresh concrete
Submerging the vibratory poker into the fresh concrete causes de-aeration and compaction of the fresh
concrete within the area of influence of the vibratory poker. The result of compaction generally depends on
the following factors:
• Consistency of the concrete.
• Density of reinforcement.
• Diameter of the vibratory poker.
• Dwell time of the vibratory poker in the concrete.
With a small-diameter vibratory poker, for example, you have to compact for longer to achieve the
same effect as you would with a large-diameter vibratory poker.
The concrete is sufficiently compacted when:
• No more bubbles rise to the surface.
• The concrete no longer subsides.
• The sound made by the vibratory poker no longer changes.
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when you are not going to continue using the product.
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