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Defines the meaning of DANGER, WARNING, CAUTION, and ATTENTION symbols used in the manual.
Lists essential safety rules for operating the hydraulic hammer and preventing injury.
Covers safety precautions related to nitrogen gas, hydraulic fluids, and operational hazards.
Explains the two types of control systems used for NPK hammers: carrier auxiliary and NPK multivalve.
Provides critical advice on avoiding contamination in the hydraulic system and oil maintenance.
Discusses the use of quick disconnects, NPK recommendations, and potential issues.
Provides step-by-step instructions for mounting the hammer to the carrier and removing it.
Details the manual greasing procedure for hammers without an autolube system.
Explains how to determine grease intervals and specifies the recommended grease types.
Lists manufacturers and brand names of greases recommended by NPK for hydraulic hammers.
Describes NPK's specialized hammer greases (Universal Plus, Super Duty, Chisel Paste) and their properties.
Explains the benefits and function of automatic greasing systems for reducing wear.
Details initial start-up steps for hammers that are new, rebuilt, or have been inactive.
Covers checking nitrogen gas pressure and performing initial hammer warm-up routines.
Outlines the daily start-up procedure, including inspection for leaks and loose connections.
Highlights critical safety warnings, including the need for protective shields and avoiding misuse.
Warns against using the hammer as a hoist and handling hot tools after use.
Explains essential techniques like preloading the tool, applying downforce, and avoiding blank hammering.
Emphasizes aligning the hammer force with the tool penetration direction to prevent damage.
Covers not using the hammer as a pry bar, limiting continuous hammering, and working to a free face.
Warns against dropping the hammer, using it for moving objects, and operating with cylinders at stroke ends.
Provides warnings against underwater operation without modification and submerging hot tools in water.
Describes how compression and tensile stress waves travel through the tool during operation.
Covers visual inspection of fasteners, welds, hoses, and hydraulic oil.
Details tool lubrication requirements and checking tool/bushing wear.
Provides step-by-step procedures for removing and re-installing demolition tools.
Details how to measure tool to bushing gap and determine component replacement needs.
Provides dimensions and warnings for re-sharpening worn chisel tools using milling or grinding.
Lists standard dimensions (diameter, length, working length) for NPK demolition tools.
Explains how to inspect the retaining pin for wear and the implications of insufficient greasing.
Covers inspection for deformation, chipping, and damage to the tool tip and impact surface.
Details the 30-day warranty for demolition and accessory tools, including exclusions.
Outlines user responsibilities for warranty submissions, including photos and compliance with instructions.
Explains how excessive bending moment from slant hammering or prying causes tool breakage and preventative measures.
Describes how worn tool holder bushings lead to improper impact angles and tool breakage.
Details how blank hammering can cause chipping in the retaining pin slot area of the tool.
Explains how tool twisting due to material fracture lines can deform the retaining pin slot area.
Warns that continuous hammering can overheat and mushroom the tool tip, leading to chipping.
Covers causes of chipping for moil tools on hard rock and chisel tools used with undersized hammers.
Discusses issues arising from low temperatures (brittleness) and high temperatures (deformation).
Explains how corrosion can cause stress concentrations leading to fatigue fractures and tool breakage.
Addresses tool failure originating from internal material defects, leading to breakage.
Provides torque specifications for socket head cap screws used on valve cases and adapters.
Details torque specifications for hex head bolts on the hammer bracket and rubber mounts.
Details specific torque values for hammer bracket bolts (L1 and L2 locations).
Covers nitrogen gas pressure specifications at ambient and operating temperatures.
Provides step-by-step instructions for measuring the nitrogen gas pressure in the hammer.
Details the procedure for charging the hammer with nitrogen gas, including safety precautions.
Provides step-by-step instructions for safely releasing nitrogen gas pressure from the hammer.
Details the base, extended, and super extended warranties for NPK boom-mounted hydraulic hammers.
Outlines the 90-day warranty specifically for NPK replacement parts and its exclusions.
Specifies the warranty coverage for NPK Autolube assemblies, including base and extended terms.
Covers the 30-day warranty for standard demolition and accessory tools, including user responsibilities.
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