Miller Honeywell DH-22/57 DH 22 57 DuraHoist Lower Mast Extension

Miller's DH-22/57 lower mast extension is designed to extend the height of the DH-3 1 piece mast.

• 2 maximum DH-22 extensions may be used together (upper offset mast and 2 mast extensions). Additionally, the combined extension maximum length may not exceed 90 inches. Any combination of 2 extensions is permitted EXCEPT
• DH-22/45 with DH-22/57
• 2 - DH-22/57 extensions
• All winch & block mounting hardware and parts must be approved or supplied by Miller / Homeywell
• Shock absorbers and retractable devices must be used and installed in compliance with manufacturer’s instructions
• Masts & extensions must be utilized with sleeves or bases approved for the applicable mast offset
• Where regulations require, every installation needs to be approved by a qualified engineer to the applicable standards
• Equipment set up & operation must be supervised by a competent person in compliance with manufacturer’s instructions