Abacus Lighting, Sutton-in-Ashfield, Nottinghamshire, NG17 5FT, England. Tel: (+44) 01623 511111, www.abacuslighting.com
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4. Maintenance
4.1. Mast Type Identification
These masts are of galvanised steel construction with tapering slip joint type octagonal shafts.
They can be identified by measuring the width of the base at flange level. The width should be
approximately 250mm on the HL250 and 330mm on the HL330. The illustrations below show the
typical arrangement of the HL250 and HL330 mast bases.
HL250 HL330
Maintenance requirements are minimal but the following checks are recommended at the
intervals stated.
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