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Details hydraulic punch driver sets, their purpose, and capabilities for various materials.
Provides essential safety guidelines and definitions for hazard symbols used in the manual.
Details electrical, skin injection, component failure, and operational hazards with precautions.
Detailed instructions for connecting, preparing, and operating the hydraulic punch driver safely.
Illustrates components of the 7646 Hand Pump and 7625 Foot Pump punch driver kits.
Comprehensive lists of components for various models, including punches, dies, and ram parts.
Detailed listing of available standard and Slug-Buster®/Slug-Splitter® punches and dies.
Guidance on tool maintenance, cleaning, and ensuring optimal performance.
Guidance on authorized repair service and using genuine replacement parts.
Details hydraulic punch driver sets, their purpose, and capabilities for various materials.
Provides essential safety guidelines and definitions for hazard symbols used in the manual.
Details electrical, skin injection, component failure, and operational hazards with precautions.
Detailed instructions for connecting, preparing, and operating the hydraulic punch driver safely.
Illustrates components of the 7646 Hand Pump and 7625 Foot Pump punch driver kits.
Comprehensive lists of components for various models, including punches, dies, and ram parts.
Detailed listing of available standard and Slug-Buster®/Slug-Splitter® punches and dies.
Guidance on tool maintenance, cleaning, and ensuring optimal performance.
Guidance on authorized repair service and using genuine replacement parts.
The Greenlee Hydraulic Punch Driver is a versatile tool designed for punching holes through various materials such as plastic, fiberglass, aluminum, and steel. It combines the 746 Hydraulic Ram with either the 767 Hand Pump or the 1725 Foot Pump, offering flexibility in operation. The device is engineered for fast, easy, and simple operation, making it suitable for both construction sites and maintenance jobs. It significantly reduces the time required for punching holes, operating up to 10 times faster than traditional wrench methods.
The punch driver is compatible with a wide range of punches and dies. It can be used with standard or Slug-Buster® punches and dies for various materials, while Greenlee Slug-Splitter® punches, dies, and draw studs are specifically designed for punching through all these materials, including stainless steel. Round punches are available in diameters ranging from 12.7mm to 144mm (1/2" to 5-5/8"), covering common conduit and pipe sizes. Additionally, the tool supports other shapes such as square, special square, rectangular, "D", double "D", electronic connector, oiltight with notches, and key, providing extensive application possibilities. The maximum material thickness that can be penetrated depends on the specific punch size and shape, with detailed capacities provided in the instruction manual for each punch.
Setting up the hydraulic punch driver involves several steps to ensure safe and effective operation. First, the dust caps are removed from the couplers, and the hose is attached to both the ram and the pump, ensuring all threads are hand-tightened completely. The appropriate punch, die, and draw stud are selected based on the desired hole size. A pilot hole is then drilled at the exact location for the punch. The 3/4" piston shaft is threaded completely into the ram. For punches and dies with a 3/8" center hole, a 3/8" stainless steel adapter screw is used, while for 1-1/8" center holes, a screw sleeve is threaded onto the piston shaft. Spacers are installed as needed, and the die is slid over the draw stud with its open end facing away from the ram. The draw stud is inserted through the pilot hole, and the punch is threaded onto the draw stud with its cutting surfaces facing the material. The punch is tightened by hand until all components—spacers, die, material, and punch—are snug. It is crucial that all punch threads are engaged by the draw stud threads; if not, the setup must be disassembled, a spacer removed, and reassembled.
Once the setup is complete, the pump is activated according to its operating manual. During operation, it is important to support the weight of the ram to prevent it from falling when the punch completes the hole. The pump should not be operated after the ram motion stops, as this can damage the ram. If the ram stops before the hole is complete, pumping should cease, and the setup should be checked for correctness and capacity. Pressure is then released at the pump to conclude the operation.
Maintenance for the hydraulic punch driver is minimal. Both the pump and ram require little upkeep, primarily focusing on keeping dirt and grit out of the hydraulic system. All internal working parts are lubricated by the hydraulic oil, eliminating the need for additional lubrication. This simple maintenance routine helps ensure the longevity and reliable performance of the tool.
For repairs, it is essential that all work be performed by an authorized Greenlee service center. Only Greenlee replacement parts should be used, as using parts from other manufacturers can cause irreparable damage and void the warranty. This policy ensures that the tool maintains its integrity and performance standards.
Safety is paramount when using and maintaining the Greenlee hydraulic punch driver. Users must read and understand all instructions and safety information provided in the manual. Immediate hazards include electric shock, which can occur if the tool is used near live circuits. Skin injection from pressurized hydraulic oil is another serious risk, necessitating immediate medical attention if it occurs. All couplers must be hand-tightened, and tools should not be used to tighten them. Users should never check for leaks with their hands or hold the hose or couplers while the hydraulic system is pressurized. Hydraulic pressure must be released before disconnecting hoses or couplers or servicing the pump or accessory.
Proper setup is critical to prevent component failure and injury. The punch must be threaded completely onto the draw stud, ensuring all threads are engaged. Only Greenlee punches, dies, and draw studs should be used, as components from other manufacturers may not withstand the forces generated by the punch driver. The tool's rated capacity must not be exceeded, as this can lead to component failure and injury. Eye protection is mandatory during operation and servicing to guard against flying debris and hydraulic oil.
The punch driver is designed for punching a single hole through one layer of material at a time; attempting to punch through multiple layers can bend or break the draw stud and forcefully eject parts. When punching, no one should stand in front of the punch or behind the hydraulic ram, and access doors or covers on equipment in line with the punch or ram should be closed. The punch driver will fall free once the punch is complete, so the weight of the tool must be supported, and no one should stand beneath an overhead punch. Finally, the tool should only be used for its manufacturer's intended purpose to avoid injury or property damage.
General| Model | 7646 |
|---|---|
| Type | Hydraulic Knockout Punch Driver |
| Power Source | Hydraulic |
| Knockout Shape | Round |
| Material | Steel |
| Operating Pressure | 700 bar (10, 000 psi) |
