Proper Storage of a Demolition Hammer
Core Principles
1. Protect key components: Focus on the piston rod, cylinder interior, nitrogen chamber, and hydraulic seals.
2. Prevent rust: Keep moisture, humidity, and corrosive materials away from metal surfaces.
3. Release pressure: Ensure there is no pressure inside the hydraulic system to protect the oil seals.
4. Avoid physical damage: Choose a safe and stable storage location.
Storage Steps
1. Cleaning: Thoroughly clean the demolition hammer housing, piston rod, drill rod, and connection points before storage. Pay particular attention to the area around the piston rod and drill rod guide. Drying: After cleaning, wipe all components dry with a clean cloth or blow dry with compressed air, especially the piston rod and drill rod surfaces, to ensure no residual moisture.
2. Piston rod protection: This is the most critical step! Fully Retract: Fully retract the piston rod into the cylinder. To do this, place the drill rod against a solid surface or block of wood, then idle the servo motor for a few seconds to allow the piston rod to fully retract. Ensure the shoulder of the drill rod is completely flush against the front cover. Apply Anti-Rust Oil/Grease: Apply a thick layer of high-quality anti-rust oil, grease, or a special piston rod protective paste to the front end of the fully retracted piston rod and the striking end of the drill rod. This coating effectively isolates air and moisture, preventing rust.
3. Relieve Hydraulic System Pressure: Handle Pressure Relief: Slowly operate the breaker control handle back and forth several times to relieve any residual pressure in the hydraulic lines and within the demolition hammer. This relieves sustained pressure on the hydraulic seals, extending their life.
4. Disconnect Hydraulic Lines: If the demolition hammer is to be stored for an extended period, it is recommended to disconnect the oil supply and return lines connecting the servo motor to the breaker. Immediate Seal: After disconnecting, immediately seal the hydraulic oil ports and hose connections on the demolition hammer with clean, appropriately sized plugs or special plugs to prevent dust and moisture from entering the hydraulic system and prevent hydraulic oil leakage. Similarly, properly seal the pipe connections on the main unit. Coil the hoses and store them in a clean, dry place.
5. Nitrogen Chamber Inspection and Protection: Before storage, it is best to check that the nitrogen chamber pressure is within the manufacturer's recommended range. If the pressure is insufficient, refill nitrogen as required.
6. Storage Location: Indoors First: Store the demolition hammer in a dry, well-ventilated indoor location whenever possible. This is the best option. Outdoor Storage: Choose a location with elevated ground and good drainage to avoid water accumulation. Completely cover the demolition hammer with a tarpaulin: Ensure that the demolition hammer is well-coated with rust-preventive oil before covering. Cover tightly with the tarpaulin and tie it securely to prevent it from blowing away in the wind or rainwater seeping in. Regularly check the tarpaulin for integrity. Avoid direct sunlight, as ultraviolet rays can accelerate the aging of rubber seals. Keep away from corrosive environments. Stable Storage: Place the hammer vertically with the drill rod facing downward. Place a sturdy sleeper or support underneath the hammer, allowing the drill rod to suspend. This is the most recommended storage position, protecting the piston rod and internal mechanisms and preventing deformation of the drill rod. If horizontal storage is necessary due to space constraints, be sure to use supports or blocks to support the hammer on the ribs or solid parts of the housing. Never allow the piston rod or drill rod to bear the weight of the entire machine. Ensure stable storage and prevent rolling or tipping.
7. Drill Rod Protection: In addition to applying anti-rust oil to the insertion area, ensure that the drill rod is protected from impact or deformation caused by heavy objects. If storage is for an extended period, consider removing the drill rod and storing it separately. Apply anti-rust oil or grease to the drill rod cavity of the hammer. After removing the drill rod, apply anti-rust oil and store it properly.
8. Additional Measures for Long-Term Storage: Regular Inspection: Inspect the storage conditions every 1-2 months, especially to ensure the presence of anti-rust oil, the integrity of the tarpaulin, and any signs of rust. Reapply anti-rust oil if necessary. Seals: Long-term storage may cause seals to lose their elasticity or become deformed. Ensure all dust seals are intact before storage. When re-activating, be sure to check the seal performance.
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