NPK PH4 - Table of Contents

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CONTENTS
SAFETY .......................................................................................................................... 3
INTRODUCTION ............................................................................................................. 5
CARRIER MACHINE COMPATIBILITY .......................................................................... 6
HAMMER SPECIFICATIONS ......................................................................................... 7
STRUCTURE .................................................................................................................. 8
STRUCTURAL DRAWING .......................................................................................... 8
HAMMER SERIAL NUMBER LOCATION ....................................................................... 9
SERIAL NUMBER LOCATION (sn1) ......................................................................... 9
HYDRAULIC INSTALLATION ....................................................................................... 10
PREVENTION OF CONTAMINATION ...................................................................... 12
HYDRAULIC QUICK DISCONNECTS ...................................................................... 13
MOUNTING INSTALLATION ........................................................................................ 15
REMOVAL FROM THE CARRIER ............................................................................ 15
REMOVAL FROM THE SKID STEER....................................................................... 16
MOUNTING TO THE CARRIER ............................................................................... 16
MOUNTING TO THE SKID STEER .......................................................................... 16
LUBRICATION .............................................................................................................. 17
GREASING PROCEDURE ....................................................................................... 17
CORRECT GREASE AND GREASE INTERVALS ................................................... 18
CORRECT GREASE FOR HYDRAULIC HAMMERS ............................................... 19
NPK HAMMER GREASE ....................................................................................... 19
AUTO LUBE SYSTEMS ......................................................................................... 19
AUTO LUBE GREASE LINE PRE-FILLING .............................................................. 20
HAMMER MOUNTED AUTO LUBE GREASE LINE PRE-FILLING .......................... 23
LUBRICATION .............................................................................................................. 25
LUBRICANT TERMS AND DEFINITIONS ................................................................ 25
START-UP OPERATION .............................................................................................. 28
HAMMERS THAT ARE NEW, REBUILT, OR HAVE BEEN INACTIVE .................... 28
BEFORE STARTING THE HAMMER ....................................................................... 29
DAILY START-UP PROCEDURE ............................................................................. 29
OPERATION ................................................................................................................. 30
OPERATING TECHNIQUES & PRECAUTIONS ...................................................... 31
IMPACT ENERGY TRANSMISSION THROUGH TOOLS ............................................ 36
IMPACT STRESS WAVES AT THE END OF THE TOOL ........................................ 37
TOOL BREAKAGE ........................................................................................................ 38
TOOL BREAKAGE DUE TO EXCESSIVE BENDING MOMENT .............................. 38
TOOL BREAKAGE DUE TO EXCESSIVE WEAR OF THE TOOL HOLDER
BUSHINGS ............................................................................................................... 39
CHIPPING IN RETAINING PIN SLOT ...................................................................... 41
DEFORMATION OF THE RETAINING PIN SLOT SIDES ........................................ 41
DEFORMATION OF THE TOOL TIP ........................................................................ 42
CHIPPING OF A MOIL POINT TOOL TIP ................................................................ 43
CHIPPING OF A CHISEL TOOL TIP ........................................................................ 43
TEMPERATURE RELATED TOOL PROBLEMS ...................................................... 44
TOOL BREAKAGE DUE TO CORROSION .............................................................. 45
TOOL BREAKAGE DUE TO DEFECTIVE MATERIAL ............................................. 45