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KENT Nordco KF3BM, Owner'S Manual

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KENT Nordco KF3BM Owner'S Manual Download Page 6

  

 

 

Section A – Page #2 

 

NOV/2005 

 
 

 

 
 

KF3BM 

350# Class Hammer 

 

 
 SPECIFICATIONS: 
 

Mounting Style . . . . . . . . . . . . . . .  

Bare Hammer Power Unit 

Weight . . . . . . . . . . . . . . . . . . . . .  

162 lbs. 

(74 Kg) 

Length . . . . . . . . . . . . . . . . . . . . .  

33.3 in.   

(845 mm) 

AEM Impact Energy Rating . . . . . .  

162.0 ft./lbs. 

(219.6 joules) 

AEM Test Flow Rate . . . . . . . . . . .  

8.96 GPM 

(33.92 L/min) 

AEM Test Frequency . . . . . . . . . . . 

1158.60 BPM  

(19.31 Hz) 

AEM Supply Line Pressure . . . .  

1976.86 PSI  

(136.30 Bar) 

Blows/Minute . . . . . . . . . . . . . . .  

700 ~ 900 

Acceptable Oil Flow. . . . . . . . . . . .  

6.5 ~ 10.5 G.P.M. 

Operating Pressure . . . . . . . . . . . .  

1450 ~ 2500 P.S.I. 

Chuck Diameter . . . . . . . . .  

2 in. 

(52 mm) 

 

 
 
 
 

 
 
 
 
 
 
 

Summary of Contents for Nordco KF3BM

Page 1: ...ers The information contained in this manual is provided at no charge to the customers of the Kent Demolition Tool Company a Division of Gougler Industries inc Kent Ohio We hereby grant to our custome...

Page 2: ......

Page 3: ...done to minimize downtime and to keep the job moving on budget and on schedule With our wide choice of hydraulic hammers pneumatic hammers concrete crushers pedestal units compactor drivers hand held...

Page 4: ...5 PRINCIPLE OF OPERATION SECTION B MAINTENANCE 2 LUBRICATION 4 ACCUMULATOR DISASSEMBLY PROCEDURE 8 ACCUMULATOR RE ASSEMBLY PROCEDURE 10 ACCUMULATOR CHARGING PROCEDURE 14 TORQUE REQUIREMENTS SECTION C...

Page 5: ...NOV 2005 Section A Page 1 SECTION A GENERAL INFORMATION...

Page 6: ...Kg Length 33 3 in 845 mm AEM Impact Energy Rating 162 0 ft lbs 219 6 joules AEM Test Flow Rate 8 96 GPM 33 92 L min AEM Test Frequency 1158 60 BPM 19 31 Hz AEM Supply Line Pressure 1976 86 PSI 136 30...

Page 7: ...the hammer keep hands and fingers clear of the mounting pin holes and linkage Make frequent inspections of the hammer and base machine as described in the Daily Inspection section of this manual Do n...

Page 8: ...h bolts 4 VALVE The valve fits over the piston inside the cylinder and controls the piston reciprocation 5 PISTON The kinetic energy of the piston during the operation of the hammer is converted into...

Page 9: ...when area A1 is connected to the return OUT line The oil pressure on area A2 is greater than the oil pressure acting on area A1 driving the piston upward At the end of the return stroke the valve shi...

Page 10: ...Section A Page 6 NOV 2005 This page intentionally blank...

Page 11: ...NOV 2005 Section B Page 1 SECTION B MAINTENANCE...

Page 12: ...g near the anvil refer to the illustration below Lack of lubrication can cause failure of the anvil piston or shorten the life of the seals An NLGI NO 2 grease is recommended The fronthead should be l...

Page 13: ...ey are as follows General Note When disassembling the accumulator inspect all parts for wear and replace as necessary before reassembly Tools required for this procedure Adjustable or 22mm wrench 5mm...

Page 14: ...wrench 2 Using a 5mm allen wrench slowly unscrew the needle valve a few turns at a time Wait a few seconds after each series of turns This will discharge gas from the accumulator DO NOT REMOVE VALVE...

Page 15: ...a vise Lock it securely Do NOT use the large nut in the center of the accumulator body to loosen the body Step 5 will instruct you on how to properly remove the body from the cover Removal of the nut...

Page 16: ...heir corresponding holes 6 Gently tap a 4 hammer on the wrench handle moving it in a counterclockwise CCW direction This is done only until the accumulator body has been loosened to the point you can...

Page 17: ...lator cover and body for burrs or nicks If burrs are found they can be removed by using 600 grit or finer paper If nicks are found replace the part If nicks or burrs are left inside the accumulator da...

Page 18: ...ality grease Lubricate the thread of the outer circumferential part of the accumulator body with anti seize lubricant Set the accumulator cover Clean the inside of the washed accumulator cover with a...

Page 19: ...been reassembled loosen the vise and set it back again with the outside up The accumulator can be charged with Nitrogen gas at this time following the procedures on page 10 or can be mounted back on t...

Page 20: ...he accumulator These are written for use with the charge kit The accumulator can be safely charged either on or off the hammer as long as these procedures are followed STEP ILLUSTRATION STEP 1 If you...

Page 21: ...ge kit adapter 3 installed under Step 2 STEP 5 Set the regulator on the nitrogen tank to 1 100 psi Using the chart at the right determine the charge pressure needed for the ambient temperature of the...

Page 22: ...en the shut off valve 12 gradually allowing nitrogen to flow into the accumulator until the charge kit pressure gauge 11 reads the pressure determined under Step 5 then close the shut off valve STEP 8...

Page 23: ...Reinstall the Accumulator Plug and O ring Step 11 Close the valve on the nitrogen tank and bleed off nitrogen pressure by slowly opening the shut off valve 12 Once the pressure gauges on the tank rea...

Page 24: ...hat group should first be loosened and then re tightened in stages alternately bringing opposing bolts up to the same torque level until all bolts in the group share the load equally Continue in the s...

Page 25: ...NOV 2005 Section C Page 1 SECTION C TROUBLESHOOTING...

Page 26: ...er Supply hoses have been reversed Pressure line from pump must be connected to pressure port marked P The return line connects to tank port marked T Oil flow is not sufficient to cycle hammer Flow te...

Page 27: ...ssure to specification Too much grease in fronthead Remove anvil and clean fronthead cavity Do not over grease Anvil is galled or sticking Hammer should be greased daily Grease the fronthead with hamm...

Page 28: ...igh Check filter and hose connections Excessive amounts of oil are leaking out from chuck area Oil flows off end of anvil Replace seal kit if oil consumption is greater than 1 pint per hour Pressure h...

Page 29: ...NOV 2005 Section D Page 1 SECTION D PARTS LIST...

Page 30: ...Section D Page 2 NOV 2005...

Page 31: ...Ring 79140945 1 Accumulator 012 K084891 01000 3 GPF Plug 037 79140943 1 Accumulator Cap 013 35700831 3 O Ring 038 79140944 1 Accumulator Body 014 K154037 10025 1 Spring Pin 039 7296022 1 Diaphragm 015...

Page 32: ...CRIPTION 98410212 1 Hammer Lift Eye Kit 1 3767080 2 Soc Head Capscrew M16 x 80 12 9 2 86038990 4 High Strength M16 Flat Washer 3 31920262 1 Hammer Lifting Eye 4 3069437 2 H Collar Lockwasher M16 Note...

Page 33: ...8977 1 1 4 NPT PIPE NIPPLE 8 K15341 1 1 4 NPT Q D NIPPLE 9 K15340 2 1 4 NPT Q D COUPLER 10 K15350 1 200 PSI PRESSURE GAUGE 11 K15351 1 1000 PSI PRESSURE GAUGE 12 K15348 1 1 4 NPT SHUT OFF VALVE 13 K04...

Page 34: ...it ACCUMULATOR KIT PART NO 79140945 ITEM PART NO QTY DESCRIPTION 1 79140943 1 Accumulator Cap 2 23164410 1 Cap 3 35700833 2 O Ring 4 1612260 1 Valve 5 11762 1 O Ring 6 7 7296022 1 Diaphragm 8 79140944...

Page 35: ...4 1 Seal Ring 007 K161021 00065 1 O Ring 008 KHB2R 10120 1 Plug 009 K160011 10010 1 O Ring 010 KF3 10121 4 Bushing 011 35700834 4 O Ring 013 35700831 3 O Ring 017 KHB1G 10532 1 Seal Washer 018 5491056...

Page 36: ...Section D Page 8 NOV 2005 THIS PAGE INTENTIONALLY BLANK...

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