Pemco Fabrication
Inspections:
A)
Mast Record Sheet
Correct production drawings
Correct grade, quality of material
Record mill test reports and heat numbers of
material
B) 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
C) Mast Check list
Items as per
Record Sheet
Hydraulic System
Latch Mechanism
Stabilizer
– Scope Cylinder
Tubing Board
Rod Board
Crown –
Sheaves – API
Base
Paint
Miscellaneous
D) Independent
Inspection
X-Ray –
ASME VIII main leg splices
Magparticle
inspection
E) 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 a polyurethane coating, standard is Dupont Imron or as specified by
customer
Inspection of
each coating is performed via mill gauge and visual
F) Final
Assembly
All components
are assembled
All bearings and
friction areas greased
Wire rope
installed (Bridon American)
Paint touch up
Check list
performed
G) Records
File kept per
serial number
Customer and
Purchase Order
Mast Record
Sheet
Independent
Inspections
Materials Record
List of Workmen
Notes
Order Changes
Fabrication Changes
Shipping
Installation item
list
Photographic Record
H) Material Storage
All materials
are stored indoors
