DESIGN CRITERIA:

Specifications set forth by the American Institute of Steel Construction (AISC) are utilized as a minimum.

WELDING CODE:

Specifications set forth by the American Welding Society (AWS) D1.1. are utilized.

QUALITY CRITERIA:

Specifications set forth by the American Institute of Steel Construction (AISC) are utilized.

INSPECTION:

During the manufacture of each Pemco mast, continual inspections occur.  Each inspection is performed by a minimum of four of the following:

	Engineering Department		Quality Control Inspector
	Sales		Independent Inspector
	Fabrication Foreman		Plant Supervisor
	Paint Shop Foreman

 

PEMCO FABRICATION INSPECTIONS:

	Mast Record Sheets
	Correct production drawings
	Correct grade, quality of material
	Record mill test reports & heat numbers of material
	Mast Shop Check List
	Check dimensions per drawings
	Square is 90° & Straight is 1/8” over 100 feet
	Saw cut material, 90% of the mast is assembled with saw cut material to assure proper fit
	Gauge of each section
	Mast Check List
	Items as per Record Sheet
	Hydraulic System
	Latch Mechanism
	Stabilizer – Scope Cylinder
	Tubing Board
	Rod Board
	Crown – Sheaves
	Base
	Paint
	Miscellaneous
	Independent Inspection
	X-Ray – ASME VIII main leg splices
	Magnetic Particle Inspection
	Paint Work
	All pieces are sand blasted to SP-10
	All pieces are primed with a zinc rich epoxy – ester primer (standard) or as specified by customer
	All pieces are top coated with Dupont Imron, PPG Del Fleet or as specified by customer
	Inspection of each coating is performed via mill gauge and visual
	Final Assembly
	All components are assembled
	All bearings and friction areas greased
	Wire rope installed (Bridon American)
	Paint touch up
	Check list performed
	Records
	File kept per serial number
	Customer and Purchase Order
	Mast Record Sheet
	Independent Inspections
	Materials Record
	List of Workmen
	Notes  (Order & Fabrication Changes, Shipping)
	Installation item list
	Photographic Record
	Material Storage
	All materials are stored indoors