©2016 HO
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Installation and Operation Manual Type HD-PU-L
Page 5 of 14
The contents of this document may be subject to technical modifications
DESCRIPTION (Continued)
Design
The
HOSCH
pre-scraper
Type HD-PU-L
is known as a head-pulley scraper. The characteristics of the scraper
are the single-row PU cleaning blocks. For belt widths up to 1,050mm, the assembly carrier is of a one-piece
design and is fitted with one single tensioning unit. For belt widths of more than 1,050mm, the scraper is
equipped with 2 tensioning units and the assembly carrier is divided into 3 parts.
Function
The centerpieces of the scraper are its cleaning blocks (
A
) made of highly abrasion-resistant PU material. During
operation, the cleaning blocks are kept in contact with the belt surface by the tensioning unit (
D
).
The assembly carrier is fixed within the mountings (
D, E
(up to1,050 mm)) and is turnable. These mountings are
bolted to the belt conveyor frame and the distance between them should be kept to a minimum to provide maxi-
mum support.
List of tools
For the scraper installation and maintenance the following tools are required as a minimum:
• 2 of ring/open-end spanner 19 mm
• 2 of ring/open-end spanner 24 mm
• 1 of assembly lever
• 1 of measuring tape 2 m
• 1 of fitter's square 160x250
• 1 of hand-brush
• 1 of wire brush
• 1 of one-hand right-angle grinder
• 1 of marker pen