TEXT VERSION OF SLIDE:

Title: Pump jack

Type: Text Slide with Image

Content:

• Brackets, braces must be fabricated from metal plates and angles
• Each bracket must have two positive gripping mechanisms
• Workbench may be used as a top-rail when guardrails used for fall protection
• Work benches must not be used as scaffold platforms
• Poles must be secured to structure by rigid triangular bracing, or equivalent

[Includes illustration of a pump jack scaffold]

Speaker Notes:

Pump jacks are a uniquely designed scaffold consisting of a platform supported by moveable brackets on vertical poles. The brackets are designed to be raised and lowered in a manner similar to an automobile jack. Pump jacks are appealing for certain applications because they are easily adjusted to variable heights, and are relatively inexpensive.