Greenlee 7306SB Ram and Hand Pump Knockout Kit - Reconditioned - 7306SB
Greenlee 7306SB Knockout set 1/2"-2" with Ram
Hand Pump Hydraulic Driver Kit
What our Experts Think
Q&A
Q: What is the Greenlee 7306SB Ram and Hand Pump Knockout Kit used for?
A: It is a complete manual hydraulic knockout system used to punch clean holes in electrical panels, enclosures, and junction boxes for conduit fittings.
Q: What does the kit include?
A: It typically includes a hydraulic ram, hand pump, hose, and knockout punch/die set components, providing a ready-to-use hole-punching system.
Q: How does it work?
A: The hand pump generates hydraulic pressure, which drives the ram to push a punch through metal, creating precise conduit openings.
Q: What materials can it punch through?
A: It can punch through mild steel, stainless steel, aluminum, and fiberglass enclosures, depending on the punch and die used.
Q: What are the key benefits?
A: It delivers clean, burr-free holes, faster installation, and reduced drilling time, improving efficiency and accuracy in electrical work.
Q: Is it portable?
A: Yes, the hand pump design makes it fully portable, ideal for fieldwork and jobsite use without needing electric power.
Q: What is it commonly used for?
A: It is used by electricians, panel builders, and maintenance crews for conduit installation and electrical enclosure fabrication.
Maintenance Tips
- Inspect ram, pump, and hoses before each use for leaks, cracks, or hydraulic fluid seepage
- Check quick-connect fittings and couplers for secure locking and wear
- Keep hydraulic fluid at proper level and use only approved hydraulic oil
- Bleed air from system if ram movement becomes slow, uneven, or spongy
- Clean ram, pump body, and dies after each use to remove metal chips, dust, and debris
- Lightly coat ram piston and die surfaces with rust-inhibiting oil after cleaning
- Ensure dies are correctly matched and fully seated before every knockout operation
- Inspect die sets for dull edges, cracks, or deformation and replace if cutting quality declines
- Tighten all fittings, bolts, and threaded connections regularly to maintain safe pressure operation
- Do not exceed rated capacity to avoid hydraulic or frame damage
- Store kit in a dry, clean environment to prevent corrosion and contamination
- Protect hoses from kinking, crushing, or sharp bends during storage and transport
- Release all hydraulic pressure before disconnecting components or servicing the unit
- Cycle pump occasionally during storage to keep seals flexible and prevent sticking
- For reconditioned kits, monitor previously serviced components more frequently for early wear
Damage 
Loss 
Theft 
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