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MANUF

ACTURER OF DOWN HOLE HAMMERS

AND BITS

P.O. Box 348

•

646 Thompson Road

•

Thompson, CT 06277 USA

US Toll Free: (800) 356-NUMA

•

Tel: (860) 923-9551

•

Fax: (860) 923-2617

E-mail: [email protected]

Website: www.numahammers.com

Patents 4,530,408 4,919,221 4,962,822 5,205,363 5,984,021 5,992,537 6,021,856 7,422,074

Patriot



CARE & MAINTEN

ANCE

INSTR

UCTIONS

Содержание Patriot 45

Страница 1: ...348 646 Thompson Road Thompson CT 06277 USA US Toll Free 800 356 NUMA Tel 860 923 9551 Fax 860 923 2617 E mail numa numahammers com Website www numahammers com Patents 4 530 408 4 919 221 4 962 822 5 205 363 5 984 021 5 992 537 6 021 856 7 422 074 Patriot 45 C A R E M A I N T E N A N C E I N S T R U C T I O N S ...

Страница 2: ......

Страница 3: ...r O Ring 3 14 Bit Retaining Rings 3 15 Chuck 3 Section II Maintenance 4 Disassembly 4 Inspection 6 General Assembly 8 Hammer Assembly 9 Backhead Feed Tube Assembly 9 Section III Parts Identification 10 Patriot 45 Exploded View 10 Part Number Reference 10 Section IV Air Consumption Chart 11 Section V Lubrication 12 Section VI Storage 13 Short Term 13 Long Term 13 Restarting 14 Section VII Button Bi...

Страница 4: ...anty period all of Numa s obligations hereunder shall terminate LIMITATION OF LIABILITY Numa shall not be liable to Buyer whether in contract in tort including negligence and strict liability under any warranty or otherwise for any special indirect incidental or consequential loss or damage whatsoever including without limitation loss arising from delay cost or capital and loss of profits or reven...

Страница 5: ...tions require supplementary hole cleaning additional hole cleaning air can be passed through the hammer by utilizing an interchangeable choke All standard hammers shipped from Numa have a blank choke installed Refer to page 11 for correct choke selection and pages 5 and 9 to facilitate the removal and the installation of the choke Patriot 45 Weight w o Bit 89 lbs 40 kg Outside Diameter 4 102 mm Ha...

Страница 6: ...c pressure in the hole thereby preventing contaminants from entering the hammer 5 CHECK VALVE SPRING The check valve spring provides tension under the check valve to keep it closed It is compressed as the air is turned on 6 CHECK VALVE GUIDE The check valve guide is seated in the feed tube and maintains the proper location of the check valve and check valve spring 7 CHOKE The interchangeable choke...

Страница 7: ...e hammer and prevents the piston from falling out when the chuck bit retaining rings and bit are removed 12 BIT BEARING The bit bearing guides the bit to insure proper alignment between the piston and the bit The bit bearing is placed into the chuck end of the case and is located by a snap ring which is inserted into the main bore 13 BIT BEARING RETAINER O RING The bit bearing retainer o ring sits...

Страница 8: ...mm long steel rod Clean the outside of the hammer This will insure a good surface to clamp on Place the hammer horizontally on a hammer stand and secure the hammer with a chain vise Place the chain vise on the area of the case where the bit bearing is housed when working on the chuck end of the hammer CAUTION THE ACCEPTABLE CLAMPING AREAS START 3 25 82 MM FROM BACKHEAD END OF CASE TO AN ADDITIONAL...

Страница 9: ...ed tube assembly stand the backhead feed tube assembly on a bench with the API thread facing down Using a drift pin tap the pin out of the backhead feed tube assembly Lift the feed tube assembly out of the backhead Remove the feed tube o ring from the feed tube Removal of the check valve guide check valve guide o ring and choke are not necessary for routine maintenance If necessary use a 3 8 10 mm...

Страница 10: ...nd pin hole for cracks and burrs Remove all burrs on the thread with a fine file Replace if necessary BACKHEAD BEARING Check for gouges or irregularities Replace if necessary CHECK VALVE The check valve should be smooth and free from abrasions Replace if necessary Replace the check valve spring if it is worn or broken FEED TUBE Inspect the outside diameter for nicks burrs and scoring Inspect all m...

Страница 11: ...Inspect the outside diameter for excessive wear or cracks Inspect the internal case bore for scoring Remove all minor irregularities with fine honing stones Clearance between the piston and the case should not exceed 0 0085 0 21 mm across the diameter Select the larger diameter end of case to be the chuck end Replace if the outside diameter is worn to 3 11 16 94 mm or less near the chuck end BIT B...

Страница 12: ...T BETWEEN THE SHOULDER OF THE BIT RETAINING RINGS AND THE BOTTOM OF THE BIT RETAINING RING AREA ON THE BIT COULD CAUSE THE BIT TO FAIL IN THIS AREA Torsional play in the splines should not exceed 0 125 3 2 mm measured at bit spline OD Replace if necessary O RINGS Inspect for damage such as cracks and deformations Replace if necessary GENERAL ASSEMBLY INSTRUCTIONS Assembly should be performed in a ...

Страница 13: ...rt the backhead bearing in the groove located on the thread outside diameter Place the feed tube o ring into the groove located on the outside diameter of the feed tube Drop the choke into the feed tube and using the small rod tap the choke in place Insert the check valve guide with o ring installed into feed tube over choke Place the check valve and check valve spring in the backhead Using a rubb...

Страница 14: ... Check Valve Guide O Ring 018273 1 Feed Tube Assembly 015269 1 Feed Tube O Ring 016710 1 Choke 005559 1 Feed Tube 015267 1 Piston 017862 1 Case 015273 1 Snap Ring 005428 1 Bit Bearing 015276 1 Bit Bearing Retainer O Ring 018135 1 Bit Retaining Rings O Ring 008959 1 Bit Retaining Rings 015266 1 Chuck 015268 1 SECTION III PARTS IDENTIFICATION EXPLODED VIEW Hammer Assembly 017864 Figure 3 1 Patriot 4...

Страница 15: ...TION CHARTS PATRIOT 45 DRILL PRESSURE BAR CFM L SEC DRILL PRESSURE PSI 3 16 4 8mm CHOKE 1 4 6 4mm CHOKE 4 3 SOLID CHOKE 1 8 3 2mm CHOKE 1 2 6 9 13 6 20 4 27 6 34 5 100 200 300 400 500 1400 1200 1000 800 600 400 200 661 566 472 378 283 189 94 4 4 3 2 1 ...

Страница 16: ...irst Numa Enviro Lube is utilized in 3 1 2 to 6 hammers only Medium SAE 30 Heavy SAE 50 Shell Air Tool Oil S2 A 150 Air Tool Oil S2 A 320 Texaco Caltex Rock Drill Lube 100 Rock Drill Lube 320 Chevron Vistac 150 Vistac 320 Conoco Conoco 150 Conoco 320 Numa Bio Blend RDP 150 RDP 320 Table 5 1 Recommended Rock Drill Oil CAUTION ROCK DRILL OILS AND NUMA ENVIRO LUBE ARE THE ONLY ACCEPTABLE LUBRICANTS S...

Страница 17: ...eign contaminants from sticking to the connector ends SHORT TERM STORAGE When the Patriot hammer will be stored for only a short period of time the following steps should be taken Blow the hammer clear of all water Pour one cup of Rock Drill Oil into the backhead Turn the air on and cycle for 10 seconds This will lubricate the internal parts Cap the backhead and chuck end Store the hammer horizont...

Страница 18: ...environment RESTARTING Before restarting the hammer after prolonged periods of inactivity disassemble and inspect all internal hammer parts If any internal hammer parts have oxidized use an emery cloth to polish each part Wash each hammer part wipe dry relubricate with rock drill oil and reassemble the hammer CAUTION FAILURETOCHECKINTERNALPARTSBEFORERESTARTINGTHEHAMMERMAYCAUSE SERIOUS DAMAGE TO TH...

Страница 19: ...the most wear and should be used to determine the frequency of bit sharpening When the flats on the gauge buttons become a maximum of 1 8 3 mm wide it is time to resharpen Refer to figure 7 1 SHARPENING The following tools are required to resharpen the bit Hand grinder 20 000 r p m Silicon carbide wheel 1 25 mm diameter 60 80 grit Bit stand Pencil Place a mark on the center of the button flat Grin...

Страница 20: ...015267 1 2 Feed Tube O Ring 016710 2 4 Piston 017862 0 1 Case 015273 0 1 Snap Ring 005428 1 2 Bit Bearing 015276 0 1 Bit Bearing Retainer O Ring 018135 1 2 Bit Retaining Rings 015266 1 2 Bit Retaining Rings O Ring 008959 1 2 Chuck 015268 1 2 Choke Set 007113 1 2 Choke 1 8 007114 0 1 Choke 3 16 007115 0 1 Choke 1 4 007116 0 1 Choke Blank installed in hammer 005559 0 1 For Complete Hammer Assembly 0...

Страница 21: ...10 03 16 Page 17 Patriot 45 NOTES ...

Страница 22: ...Page 18 10 03 16 Patriot 45 NOTES ...

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