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Use Instructions:
The operating instructions in this manual are meant to supplement the operation
recommendations of ASME standard B30.20.
Only trained, designated persons should use the plate clamp. "Designated person" means someone selected by
his or her employer, or by a representative of the employer, as competent to use the plate clamp. Trainees under
the direct supervision of a designated person may use the clamp. Maintenance personnel and personnel who
perform tests also may use the plate clamp when necessary for the performance of their employment duties.
Step 1: Perform a proper, "Every Lift" inspection as described in the most recent edition of ASME B30.20,
BEFORE you connect the clamp to a hoisting device. Proceed to the next step ONLY IF the clamp passes the
inspection and is deemed safe to use by designated inspection personnel.
Step 2: Connect the clamp to the hoisting device. Only connect the clamp to a safety hook to prevent accidental
detachment from the hoist.
Step 3: Unlock the clamp by rotating the latch lever downwards (photo 1). Move the trolley to position the clamp
above the sheet material. The sheet must balance when lifted, so position the clamp above the center of the
sheet. The center of the sheet is indicated by a dashed line in photo 2. [NOTE: The sheet must weigh AT LEAST
as much as the "Minimum uniform plate weight" of your clamp, which appears in the Table on p. 2.]
DO NOT attempt a horizontal lift; only lift material vertically. All horizontal adjustments in
the position of the clamp must be accomplished by moving the trolley. DO NOT push or pull the clamp so
that the hoist chain/rope is not vertical. This is important because any deflection of the chain/rope from
straight up-and-down will cause the load to swing when lifted. A swinging load may cause serious
personal injuries
Proper
Vertical
Lift
1
Rev. 9/10/2014
8
2
The gripper (8) must contact the
cam (2). If they do not, adjust
the position of the gripper until
contact is made.
Copyright 2014 Vestil Manufacturing Co.
Page 5 of 12
EPC, manual.doc
Properly
functioning
safety latch
Improper
Horizontal
Lift
2
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