Model DWS PERIODIC INSPECTION PROCEDURES
Step 1. Verify the identity of the clamp by checking the I. D. plate on
the clamp body. If the I. D. plate is missing or not legible an RFID chip
(Radio Frequency Identification Device) is embedded either in the
clamp body or a clamp component. If the I. D. plate is missing and the
RFID chip is unavailable call the Renfroe factory for instructions on re-
turning the clamp for recertification.
Step 2.
Completely disassemble clamp.
Step 3
.Remove all dirt, grease and other matter that may inhibit proper inspec-
tion of the clamp body or clamp components.
Step 4. Body - Inspect welds for fractures. RENFROE recommends a
dye penetrant or similar method of detecting indications on the clamp. If
an indication is found it may be necessary to use a magnetic particle,
ultrasonic or similar methods for determining damage to the clamp or
components.
A. Inspect all pin holes for wear and elongation.
B. Inspect inside area of jaw opening for displaced metal and distortion.
C. Inspect cam stop pin - pin must be in place. Refer to exploded view.
WARNING: Replace clamps containing fractures, elongated holes,
distorted jaw openings and clamp bodies with metal in jaw opening
displaced. Cam stop pin must be in place.
Step 5.
Gripping Cam - DWS-1
A. Inspect gripping cam for chipped or worn teeth. Teeth must be
sharp and free of foreign matter.
B.
Inspect cam for fractures and wear.
WARNING: Replace cams with fractures, chipped or worn teeth.
Step 6.Lifting Shackle - DWS-2
A. Inspect lifting shackle eye for elongation and wear at point where
eye engages sling attachment.
B. Inspect shackle pin holes for wear and elongation.
C. Inspect shackle body for bending.
Summary of Contents for DWS
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