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SC VLC Operation, Maintenance, And Repair Manual
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SC VLC Operation, Maintenance, And Repair Manual

SC VLC Operation, Maintenance, And Repair Manual

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Safety clamps, inc.
Home of the "big Bite" Lifting Clamp
Operation, Maintenance and
Repair Manual for
VL Series Clamps
The VL Series includes models:
VL
VLC
VL-SJ
VLX
PDS
(Also includes the listed models with
the Universal Lifting Shackle, Auxiliary Lock,
and/or Stainless Grippers)
Excludes Models VL-BC, and VL-Channel
Products manufactured by Safety Clamps, Inc.
meet and/or exceed:
ANSI/ASME B30.20/ BTH-1
Design Category: C
Prior to operating your Safety Clamp, please ensure
All operators read and understand this manual.
Eff ective January 1, 2018
This manual supersedes all previous VL manuals.
Service Class: 4
Warning

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Summary of Contents for SC VLC

  • Page 1 Safety clamps, inc. Home of the “big Bite” Lifting Clamp Operation, Maintenance and Repair Manual for VL Series Clamps The VL Series includes models: VL-SJ (Also includes the listed models with the Universal Lifting Shackle, Auxiliary Lock, and/or Stainless Grippers) Excludes Models VL-BC, and VL-Channel...
  • Page 2 Serial # _______________________ Model _______________________ Max. Rated Capacity in Tons _______________________ Jaw Opening _______________________ Safety Clamps, Inc. Repair Service Center  Call 1-800-456-2809 for a Return AuthorizationΝumber. Include: Model Rated Capacity Serial Number  You will receive a written quote within 24 hours of receipt of your Safety Clamp.

  • Page 3: General Information

    Note: The optional auxiliary push button lock is not required to rotate material through a 180° arc. The VL series models are rated to lift material with a hardness up to 450 Brinell (48 Rockwell C). For VL series models, the minimum rated capacity is 10% of the maximum rated capacity of the clamp.
  • Page 4 4. Do not lift plate with mill scale, grease, or any other coatings that may prevent gripping surface from making solid contact with plate. 5. Do not lift material from the side with a VL series clamp (Fig. 4) unless using a clamp with the Universal Lifting Shackle.
  • Page 5 Safety Clamps, Inc. VL Series Clamps Figure 3: Never exceed 10° side loading with a VL series clamp unless using a clamp with a Universal Lifting Shackle. When using a clamp with a standard shackle, always position the clamp so the direction of force applied by the crane is in line with the lifting shackle.

  • Page 6: Operation

    8. Inspect the lifting shackle (SC-10, Fig. 8) and all pins for wear and damage. 9. The lock spring (SC-61, Fig. 8) must have a defi nite amount of tension when the lock is moved to the “Lock Closed” position, with minimal material in the clamp.
  • Page 7 3. Do not lift plate with mill scale, grease, or any other coatings that may prevent gripping surface from making solid contact with plate. 4. Never exceed ten degrees (10°) side load with a VL series clamp that has a standard lifting shackle (Fig. 3).
  • Page 8 For a clamp with a standard lifting shackle (SC-10), make sure the clamp is positioned so the direction of force applied by the crane is in line with the lifting shackle (Fig.
  • Page 9 Safety Clamps, Inc. VL Series Clamps OPERATION Lift and Transfer of Material 1. As the operator begins to make the lift, ensure the load is balanced. If the load is not balanced, lower the material and adjust the position of the clamps accordingly and follow the guidelines under the “Loading the clamp”...
  • Page 10 Safety Clamps, Inc. VL Series Clamps Part # Parts List for VL Series Models 1/2 ton & 1 ton, & 2 ton VL-SJ SC-10 Lifting Shackle SC-10U Universal Lifting Shackle SC-12 Lifting Shackle Pin SC-14 Universal Lifting Shackle Pin SC-16 Body Bolt Assembly (1 spacer, bolt, &...
  • Page 11 Safety Clamps, Inc. VL Series Clamps Part # Parts List for VL Series Models 2 - 20 ton, except 2 ton VL-SJ SC-10 Lifting Shackle SC-10U Universal Lifting Shackle SC-12 Lifting Shackle Pin SC-14 Universal Lifting Shackle Pin SC-16 Body Bolt Assembly (1 spacer, bolt, & nut) SC-16AUX Body Bolt Assembly for Auxiliary Lock (1 spacer, bolt, &...

  • Page 12: Inspection And Maintenance

    8. Inspect the lifting shackle (SC-10, Fig. 8) and all pins for wear and damage. 9. The lock spring (SC-61, Fig. 8) must have a defi nite amount of tension when the lock is moved to the “Lock Closed” position, with minimal material in the clamp.

  • Page 13: Periodic Inspection

    INSPECTION AND MAINTENANCE 10. For clamps with the auxiliary push-button locking handle, the lock button in the auxiliary lock body bolt (SC-16Aux, Fig. 8) must have a positive spring action to project it out and engage the lock handle when the handle is moved to the “Lock Closed” position.
  • Page 14 Inspect the shackle body for bending. d.) Universal Lifting Shackle: Inspect shackle pivot pin (SC-14, Fig. 8) and shackle pivot pin hole for wear and distortion. Note: An elongated shackle eye indicates overloading. An elongated shackle pin hole indicates wear and possible overloading. A bent shackle indicates excessive side-loading.
  • Page 15 Inspect the connecting yokes for distortion and fractures. c.) Inspect lock ear area where the lock engages for wear. If worn the clamp may not fully lock open with the gripping cam(s) (SC-50 or SC-42) out of the jaw area.
  • Page 16 Inspect push button assembly in the lock handle for wear or binding. If binding check for damage or foreign matter. The lock button in the auxiliary lock body bolt (SC-16Aux) must fi t completely inside opening in lock handle when “Locked Closed”.
  • Page 17 Disassembly Refer to exploded views on pages 8 and 9 for part numbers. 1. Remove roll pins for the gripping cam body pin (SC-54) and the connecting yoke body pin (SC-37) and remove body pins. 2. Remove the lock handle assembly (SC-65).
  • Page 18 Inspection and Repair Log Date Inspection/Repair Performed by:...
  • Page 19 Inspection and Repair Log Date Inspection/Repair Performed by:...
  • Page 20 Safety clamps, inc. Home of the “big Bite” Lifting Clamp Register Your Clamp Go to www.safetyclamps.com to register your clamp to receive the most appropriate service, product support, and training aids for your clamp and also receive updates on new products. 10 Year Limited Warranty See inside front cover for details.