MaintenanceBasic RulesRead the manuals --- Its important!Hammer Components are machined with close tolerances-- Oil components before assembly-- Use solvent tank and Krokus cloth to clean -- Do not use steam cleaner

MaintenanceOperator Requirements

Properly grease hammer Tighten loose connections in hydraulic system Inspect tool retaining pins Remove burrs from retaining pin groove on tool Check lower tool bushing for wear Check top and side buffers for cracks and wear Check condition of other wear parts, hydraulic connections etc.DailyWeeklyMonthly

GREASING INTERVALEvery two hours; hourly in extreme conditions10-15 strokes from the grease gun Adapt interval and amount according to grease quality, wear rate and working conditions. GREASE TYPEMolybdenium disulphide or graphite grease.Dropping point at over 250 C or 480 FMaximum working temperature >150C/302FMinimum working temperature under lowest ambient temperatureGrade NGLI number 1 or 2Water resistant GREASING OF TOOLHammer must be standing upright against the toolCheck that grease goes between tool and bushingsDo not over greaseLubrication Guide

SEALSIMPROPER GREASING

Greasing without proper down force cancause premature seal failure.ToolPistonImproper GreasingGrease blows pass seals

Debur tool retaining pin grooveMaintenanceOperator RequirementsResult of repeated blank firing.

MaintenanceDealer Requirements

Once a year or between 600-1000 machine hours Replace all seals and accumulator membranes. Inspect internal components for wear. Replace warning and safety labels. Inspect tie rods.Inspect and replace according to specifications: Tool bushings Tool retaining pins Tool Thrust Ring BuffersH115s - H195 Wear PlatesH115s - H195 Machine hydraulic specifications are set properly engine rpm, relief settings, flow Hammer hydraulic circuit specifications are set properlyFlow at Pressure, Return line pressure (Back Pressure) All hoses and fittings on machine are in good condition No leakage, No damaged or pinched hosesAnnual ServiceReplace Wear ItemsCheck Systems

Why Reseal? Annual wear on seals is between 13 million to 54 million duty cycles. Model H70Impact Frequency: 600-1800 bpm1800*60 =108,000 cycles per hour108,000*8 =864,000 cycles per day864,000*5 =4,320,000 cycles per week4,320,000*52 =224,640,000 cycles per year

Expected Life per Hour Usage EstimatesWear ComponentsLow NormalMaximum

Avg. Cost Per Hour

AVERAGE COST PER HOUR

DescriptionPart No.UnitQuantityNetAverageAverage

PriceRequiredPriceWear Hrs.Cost per Hr.

Tool03000.0

Tool Retainer Pin(s)04250.0

Lower Tool Bushing04000.0

Thrust Bushing010000.0

Upper Tool Bushing010000.0

Seal Kit06000.0

Membrane(s)06000.0

Labor For Rebuild06000.0

(# hrs. X hourly rate)

Housing Wear Plates0

Buffer Assy. H115s-H195013000.0

Pads H115s-H19509000.0

Total Cost Per Hour0.0

Cost Per 8 Hour Shift0.0

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Production Cost

Production Cost

For Model Hammer

Total Cost PerInsert Value FromTotal Cost Per

8 Hour ShiftProduction ChartCubic Yard

0.00.0low

0.00.0average

0.00.0high

EXAMPLE MODEL H140s

Insert Total Cost PerInsert Value FromTotal Cost Per

8 Hour Shift - BelowProduction ChartCubic Yard

$118.72150$0.79low

$118.72250$0.47average

$118.72350$0.34high

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Production Chart

Production in Cubic Yards Per 8 Hour Shift

Note: For boulder breakinng see appropriate charts

BreakerConcreteConcreteRockRock

ModelNon-ReinforcedReinforcedSedimentaryVolcanic

H6334/69NA

H7085/14025/60

H90C90/16050/80

H100NEW MODEL INFO NOT AVAILABLE

H115s150/375140/240165/36575/150

H120s200/450160/300200/340110/200

H130s275/490200/350250/400135/275

H140sNANA300/700150/350

H160sNANA350/900200/600

H180sNANA400/1600250/900

H195NANA500/2500350/1400

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Wear Chart

Wear Parts Per Hour

Hours

DESCRIPTION10501002003004005006007008009001000110012001300

TOOLExpected Maximum Life

TOOL RETAINER PIN(S)Expected Maximum Life

LOWER TOOL BUSHINGExpected Maximum Life

THRUST BUSHING

UPPER TOOL BUSHINGExpected Max

SEAL KITRecommended Change Every 600 Hrs

MEMBRANE(S)Recommended Change Every 600 Hrs

LABOR FOR HAMMER REBUILDRecommended Change Every 600 Hrs

TIE RODS

HOUSING WEAR PLATES

SIDE PLATES MODELS H63-H100

HOUSING MODELS H115s-H195

BUFFER ASSEMBLY H115s-H195

BUFFER PADS H115s-H195Expected Max

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Sheet5

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Sheet6

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Sheet7

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Sheet8

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Sheet9

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Sheet10

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Sheet11

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Sheet12

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Sheet13

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Sheet14

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Sheet15

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Sheet16

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Long Term Storage - 6 months or moreIncorrect Storage PositionCorrect Storage Position1) Remove tool2) Protect with grease (anti-rust)Front end of pistonBushingTool3) Plug hydraulic connections4) Store in a dry area5) Store hammer in vertical position ONLYPiston WeightSeal Damage

Tool Working EnvironmentMechanical damages like burrsAxial loadBendImpact loadSeizure and pressurePressure and heatTorsion Mechanical surface damages Wear and tear DirtTemperatureCorrosion

Tool FailuresOVERHEATING OF TOOLTool wears very fast. Hitting face of tool may be mushrooming and peeling.BREAKING OR FAST WEAR OF CHISEL TIPCaused by wrong selection of tool. Chisel can be used only for breaking soft materials. Also retainer pin and retainer pin groove in the tool wears fast if tool is used for wrong application.SEIZING IN TOOL BUSHINGStrong side load and striking at the same time cause tool and tool bushing surface to be damaged. Caused by wrong working angle and/or wrong or insufficient lubrication. Failure generally occurs in front tool bushing area. Failure type is fatigue fracture which starts from the surface.BREAKING CAUSED BY EXCESSIVE BENDINGBending stress exceeds material strength and tool snaps off. Caused by wrong working angle or use of tool for mechanical leverage. Failure generally occurs near tool bushing's front fact. Failure type is brittle fracture with a typical lip formation.

Tool FailuresMATERIAL FAULTFatigue failure which starts from the inside of the tool.MECHANICAL DAMAGE ON TOOL SURFACECaused by heavy gouge on tool surface. Failure occurs outside tool bushings. Failure type is generally fatigue fracture.COLD FRACTUREBrittle fracture which may occur anywhere in the tool. Can be avoided by warming up the tool.IDLE STROKESHeavy wear on tool retainer groove. Breaking of the tool at groove area.