Diamond Products HCH50 - Manual (Page 38)

Operation Operating instructions
6-6 HCH5011 / 001
6.3.1 Sort out fundamental conditions
• Determine the position of pipes and cables in walls, floors and ceilings.
• Where does the cooling water used for sawing flow to? (Think about
water damage to the electrical supply).
6.3.2 Securing the site
• See “Chapter 1” Workplace and danger areas 1.1.3,  1-2
6.3.3 Securing cutouts
Secure cutouts from walls and especially from ceilings and floors by
suitable means, e.g. crane, supports, etc.
Check the weight of concrete. (1m³ = 2400-2700 kg)
6.3.4 Decide on position and sequence of the cuts
6.3.4.1 Position of cuts
Find out about the concrete or masonry to be sawed:
– Where does the reinforcement run?
– Is the concrete heavily or lightly reinforced?
Cut across the reinforcement if possible.
6.3.4.2 Cutting sequence
Decide on the sequence of cuts before starting work. For example, for a
window cutout carry out the bottom cut first, then the side cuts, and finally
the top cut.
Fig. 6-2 Sequence of cuts for a window cutout
Information
The wrong sequence of cuts can lead to jamming of the bar or damage
to the chain.
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