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WH C4 QP
Chain Hoist
User Manual
WHM-0008 Rev. 6
1

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Summary of Contents for William Hackett WH C4 QP

  • Page 1 WH C4 QP Chain Hoist User Manual WHM-0008 Rev. 6...
  • Page 3 Contents Dimensions and Specifications ....................Hoist Selection ........................... Pre-use Checks ........................Hoist Attachment / Mounting ..................... Safe Use Information ......................... Storage and Control Procedures ....................Practical Considerations for the use of the C4 QP ..............Spare Parts Inspection Category ....................Parts List ............................
  • Page 4 Dimensions and Specifications Single Fall Multi Fall Table 1: Product specification, dimensions and WLL for William Hackett C4 QP chain hoists Mass Extra Load Part No. of h min Weight Chain Code tonnes Falls per M 025.053 6 x 18 25.5...
  • Page 5 William Hackett C4 QP chain hoists are assembled, chained and tested to the height of lift specified by the end user. Careful consideration should be given to the headroom required to lift the load and the position of the operator before specifying the length of load chain and the hoist model.
  • Page 6 Pre-use checks Before issue from the designated storage location the certification supplied with the chain hoist should be confirmed as within date. The label on the hoist should be fully legible and it should correspond with the relevant certification. Conducting thorough and consistent checks on a chain hoist immediately prior to use will help identify problems due to accidental damage, internal corrosion, brake contamination or inappropriate storage.
  • Page 7 Hoist Attachment / Mounting Check the correct engagement of the top and bottom hooks. The hooks should be free to articulate fully when engaged with the load attachment points without overcrowding or point loading that is detrimental to the hook in any way.
  • Page 8 Do not attempt lifting operations unless you understand the use of the equipment, the lifting and slinging procedures and you have been suitably trained. William Hackett C4 QP chain hoists are not designed for lifting people and should not be used for that purpose. Use appropriate personal protective equipment (PPE).
  • Page 9 Storage and Control Procedures The equipment should ideally be stored in a purpose designed facility where it can be kept secure from unauthorised use. A responsible person should control the issue and receipt of all lifting appliances and accessories, and a system to manage statutory inspections should be in place. Storage would normally be on suitable racks within a container a manner that prevents accidental mechanical damage and where the load chains are clear from the ground.
  • Page 10 When planning a lifting operation using a chain hoist or selecting a chain hoist for a lift, the light load limitation of the braking mechanism should be recognised. The William Hackett C4 QP chain hoist is tested and certified to have a light load capability at 2% of the chain hoist rated capacity.
  • Page 11 Spare Parts Inspection Category Corrosion Protected / Stainless Steel / Copper SPECIAL INSPECTION - Type 1 Components (Do Not Shotblast) STANDARD INSPECTION - Type 2 Non-Corrosion Protected or Painted Components Inspection Type (1 or 2) Part Quantity Description Code C4.QP .01 Top Hook Assembly C4.QP .02 Latch Kit...
  • Page 12 Parts List Part C4 QP Part Name Code Finish C4.QP .01 Top Hook Assembly Powder Coating & Zinc C4.QP .02 Latch Kit Zinc Passivate C4.QP .03 Top Hook Pin Self Colour C4.QP .04 Bottom Hook Assembly Powder Coating & Zinc C4.QP .05 Bottom Hook Chain Fixing Pin Powder Coating &...
  • Page 14 Hoist Disassembly C4 QP Servicing Tool Requirements Metric spanners or socket set 5mm-19mm Long nose pliers Circlip pliers Nylon/Dead blow hammer Ball Pein hammer Solvent free brake cleaner 120-180 grit Sandpaper Cross head screw driver Metric Allen Key set 3mm-12mm Vernier caliper Pop Rivet Gun Drill (for speed link removal)
  • Page 15 Maintenance and Repair C4.QP .01 Top Hook Assembly Inspection Type: Visual and Dimensional - contact manufacturer Quantity: Check for distortion, damage, fractures and stretching. The hook shall be free and smooth to rotate, the hook to housing contact points should have even wear, check top hook bolt hole to diagram.
  • Page 16 Maintenance and Repair C4.QP .05 Bottom Hook Chain Fixing Pin Inspection Type: Visual Quantity: Check for damage or wear. Action: Check and replace if necessary. C4.QP .07 Nut Inspection Type: Not Applicable Quantity: Action: Discard and replace. C4.QP .08 Label Rivets Inspection Type: Not Applicable Quantity:...
  • Page 17 Maintenance and Repair C4.QP .10 Gear Cover Assembly Inspection Type: Visual Quantity: Examine for cracks, distortion,damaged or broken parts, check gear bushings are secure and in good condition. Action: Shotblast and repaint or replace if necessary. C4.QP .11 Pinion Shaft Inspection Type: Visual Quantity:...
  • Page 18 Maintenance and Repair C4.QP .14 Load Gear Inspection Type: Visual Quantity: Examine gear for wear, fracture and alignment. Action: Clean, reapply grease or replace if necessary. C4.QP .15 Gear Side Plate Inspection Type: Visual Quantity: Examine gear/right side plates for alignment and ensure they are free from excessive wear and distortion, examine load pin, guide, stripper and stay bolt holes for signs of wear and stretch, check gear bushings are secure and in good condition.
  • Page 19 Maintenance and Repair C4.QP .18 Caged Roller Bearings Inspection Type: Visual Quantity: Examine Bearings for excessive corrosion and wear, the bearings should be smooth and free to operate when a slight pressure is applied. Action: Clean, reapply grease or replace if necessary. C4.QP .19 Load Sheave Inspection Type: Visual...
  • Page 20 Maintenance and Repair C4.QP .22 Friction Disc (pair) Inspection Type: Visual and Dimensional - see miscellaneous Quantity: Check for fractures, wear and damage ensuring mating surfaces are flat and clean and free from contaminents. Action: Replace if any defects found or below tolerance. C4.QP .23N Ratchet Gear Inspection Type: Visual and Dimensional - see miscellaneous...
  • Page 21 Maintenance and Repair C4.QP .26 Snap Ring Inspection Type: Not Applicable Quantity: Action: Discard and replace. C4.QP .27 Brake Cover Inspection Type: Visual Quantity: Examine for wear, damage fractures. Action: Shotblast and repaint or replace if necessary. C4.QP .28 Hand Chain Inspection Type: Visual and Dimensional - see miscellaneous Quantity:...
  • Page 22 Maintenance and Repair C4.QP .29L Overload Limiter Assembly Inspection Type: Not Applicable Quantity: Action: Contact manufacturer. C4.QP .30 Pinion Nut Inspection Type: Visual Quantity: Check thread condition, check for wear or fractures. Action: Replace if necessary. C4.QP .31 Cotter Pin Inspection Type: Not Applicable Quantity:...
  • Page 23 Maintenance and Repair C4.QP .33 Chain Anchor Plate Inspection Type: Visual Quantity: Check for damage and wear on all components of the anchor, pay attention to chain contact points including load pin. Action: Shotblast and repaint or replace if necessary. C4.QP .35 Chain Anchor Pin Inspection Type: Visual...
  • Page 24 Assembly Instructions 1. With the wheel side plate facing pawl stands down, lubricate the sheave to bush contact points and insert the load sheave #19 with the splined section upwards. 2. Install chain guides, stripper and chain anchor #16, 17 & 33. 3.
  • Page 25 Miscellaneous RAISING THE LOAD To raise load, pull right side of hand chain (A, Figure 5) so that the wheel turns clockwise. To lower load, pull left side of hand chain (B, Figure 1) so that 4. Fix the two halves of the speed link together with wheel turns counterclockwise.
  • Page 26 Miscellaneous BRAKE DISC Replacement limits for brake disc Figure 3 Capacity 30.5 35.5 35.5 35.5 5.0 - 50.0 45.5 B = inner diameter C = normal measurement A = outer diameter D = replacement limit Table 1 Replacement limits for Ratchet Brake System Figure 4 B min D min...
  • Page 27 Miscellaneous QUAD PAWL DIMENSIONS Pawl A Pawl B L max L min D max D max Capacity L max D max Capacity L max D max 0.5 to 1.0 19.2 20.2 0.5 to 1.0 22.5 21.4 1.6 to 3.2 24.0 25.2 1.6 to 3.2 24.8...
  • Page 28 Miscellaneous C4 QP DIMENSIONS AND DISCARD CRITERIA A (mm) B (mm) C (mm) D (mm) Capacity Nominal Discard Nominal Discard Nominal Discard Nominal Discard 42.5 46.8 26.5 29.2 14.2 12.8 20.0 18.0 49.0 53.9 32.5 35.8 15.0 13.5 21.1 19.0 51.5 56.7 34.5...
  • Page 29 Only original William Hackett spare parts should be used. William Hackett guarantee the performance of the C4 QP hoist for a period of 12 months from the date of sale subject to the purchaser and users complying with the safe use, storage, routine maintenance and servicing instructions, and there being no excessive wear and tear or misuse of the product.
  • Page 32 William Hackett Lifting Products Limited Oak Drive, Lionheart Enterprise Park Alnwick, Northumberland United Kingdom NE66 2EU t: 01665 604200 f: 01665 604204...