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Instructions on proper greasing of the tool and bushing.
Steps to prevent contamination in the hydraulic system.
Guidelines for maintaining the hydraulic oil system.
Procedure for proper and frequent greasing of the tool.
Checking for wear on the tool and its bushings.
Table of common problems, causes, checks, and remedies.
Methodology to identify if the issue is in the hammer or the hydraulic system.
Steps for measuring hydraulic pressure in the hammer lines.
Procedure for connecting a flow meter and checking backpressure.
Diagrams and descriptions of points to check for oil leaks.
Description of preferred and alternate methods for measuring gas pressure.
Step-by-step instructions for checking the hammer's gas pressure.
Step-by-step instructions for charging the hammer with nitrogen gas.
Steps for safely discharging the gas pressure from the hammer.
Inspect and polish the main body bore after disassembly.
Procedure for repairing bore damage using grinding and polishing.
Method to repair deep scratches in the bore using welding.
Specifications for main body bore dimensions and hone sizes.
Procedure for repairing piston active seal areas by polishing.
Instructions for installing U-cup seals into sleeves.
Procedure for installing O-rings and backup rings.
Preferred method for installing piston and sleeves as a unit.
Procedure for charging gas and checking for leaks.
Steps to measure and compare tool/bushing clearances against specifications.
Guidance on selecting the correct grease and greasing frequency.
List of recommended greases and their properties.
Details on NPK's range of hammer greases.
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