Numa Champion 330 Care & Maintenance Instructions
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Numa Champion 330 Care & Maintenance Instructions

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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: numa@numahammers.com
Website: www.numahammers.com
©2017 Numa All Rights Reserved
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

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  • Page 1 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: numa@numahammers.com...

  • Page 3: Table Of Contents

    Feed Tube Assembly .............. 10 Check Valve Assembly ............10 Hammer Assembly ..............11 Section III Parts Identification........... Champion 330 Exploded View ........13 & 14 Part Number Reference ..........13 & 14 Section IV Air Consumption Charts ......... SectionV Lubrication ............
  • Page 4 If, during such warranty period, Buyer promptly notifies Numa in writing of any defect and establishes that the above warranty is not met, Numa shall either repair or replace the Product or credit the customer, as it deems necessary to meet the warranty.

  • Page 5: Section I Description

    GENERAL DESCRIPTION The Champion 330 is a valveless, pneumatically operated tool designed to utilize Numa 32" to 48" (813 mm to 1219 mm) diameter bits in rock formations under a wide range of operating conditions. The Champion 330 hammer design incorporates a thick wall case. The non ported case design allows for a large bore diameter in conjunction with optimum life against abrasion.

  • Page 6: Functional Description

    MANUFACTURER OF DOWN HOLE HAMMERS AND BITS FUNCTIONAL DESCRIPTION BACKHEAD The backhead connects the hammer to the drill rod with double start threads. It is threaded into the top end of the case with a large cross section thread form and into the drill rod with a standard 10"...

  • Page 7: Feed Tube Housing

    MANUFACTURER OF DOWN HOLE HAMMERS AND BITS FEED TUBE HOUSING The feed tube housing is aligned in the main bore of the hammer. It sits against a shoulder in the case and is held in position by the backhead and belleville washer combination.

  • Page 8: Thrust Washers

    MANUFACTURER OF DOWN HOLE HAMMERS AND BITS THRUST WASHERS Two brass thrust washers, one located between the backhead and the case and one between the chuck and the case, provide for easy disassembly. CHUCK The chuck threads into the bottom end of the case with a large cross section thread form.

  • Page 9: Section Ii Maintenance

    Maintenance should be performed in a clean environment. • • • • • CAUTION USE CAUTION WHEN HANDLING DOWN THE HOLE HAMMER PARTS. NUMA HAMMER PARTS ARE MANUFACTURED FROM HARDENED, HEAT TREATED MATERIALS. DROPPING OR STRIKING THESE PARTS MAY CAUSE SEVERE DAMAGE. STRIKING THE HAMMER PARTS WITH HAMMERS, CROWBARS OR LIKE INSTRUMENTS WILL VOID THE WARRANTY.
  • Page 10 MANUFACTURER OF DOWN HOLE HAMMERS AND BITS CAUTION THE ACCEPTABLE CLAMPING AREAS START 11-1/2" (292 MM) FROM THE CASE END, TO AN ADDITIONAL 10" (254 MM) BEYOND THIS POINT ON BOTH THE CHUCK AND BACKHEAD END OF THE CASE. PLACING THE VISETONGS ON THE AREA OF THE CASE WHERE THE PISTON CYCLES CAN DISTORT THE CASE, RESTRICT PISTON MOVEMENT AND VOID THE WARRANTY.
  • Page 11 MANUFACTURER OF DOWN HOLE HAMMERS AND BITS It is not necessary to remove the bit bearing for routine maintenance. If necessary, the • • • • • snap ring must be removed first. Using a large screwdriver and the slot provided in the snap ring groove, pry one end of the snap ring up and out of the groove.

  • Page 12: Inspection

    MANUFACTURER OF DOWN HOLE HAMMERS AND BITS INSPECTION All parts should be washed in a clean solvent before they are inspected and • • • • • reassembled. WARNING USE CLEANING FLUIDS THAT ARE NONFLAMMABLE AND AVOID BREATHING THE FLUID VAPORS. Handle all parts carefully, hardened parts may chip if dropped on a hard surface.
  • Page 13 MANUFACTURER OF DOWN HOLE HAMMERS AND BITS CASE 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 .030"...

  • Page 14: General Assembly

    MANUFACTURER OF DOWN HOLE HAMMERS AND BITS O-RINGS Inspect for damage such as cracks and deformations. • • • • • Replace if necessary. • • • • • THRUST WASHERS Inspect for damage such as cracks and deformations. • • • • • Replace if necessary.

  • Page 15: Hammer Assembly

    MANUFACTURER OF DOWN HOLE HAMMERS AND BITS Insert the check valve housing spacer. • • • • • Insert the check valve housing, containing the check valve, check valve spring. • • • • • Align the feed tube retainer, with the feed tube retainer o-rings installed, toward the •...
  • Page 16 CAN ONLY BE TIGHTENED WITH A POWER WRENCH ON THE RIG. CAUTION LIFTING THE CHAMPION 330 HAMMER WITH THE THREAD JOINTS LOOSE MAY CAUSE DAMAGE TO THE THREADS Lifting and supporting the entire unit, place the bit retaining rings with the o-ring •...

  • Page 17: Section Iii Parts Identification

    MANUFACTURER OF DOWN HOLE HAMMERS AND BITS SECTION III PARTS IDENTIFICATION EXPLODED VIEW Backhead 10 Beco Pin 016418 (1) Backhead O-Ring 008913 (1) Check Valve Seat O-Ring Case 005775 (2) 015065 (1) Check Valve Seat Exploded 008969 (1) View of Belleville Washers Check Valve Housing Spacer 008972 (1)
  • Page 18 MANUFACTURER OF DOWN HOLE HAMMERS AND BITS SECTION III PARTS IDENTIFICATION EXPLODED VIEW Figure 3-2 Feed Tube Retainer O-Ring 009222 (2) Feed Tube Retainer 016417 (1) Feed Tube Assembly 008981 (1) Choke Blank 007593 (1) Feed Tube 008968 (1) Feed Tube Compession Ring 008975 (1) Feed Tube O-Ring 008979 (2)

  • Page 19: Section Iv Air Consumption Charts

    MANUFACTURER OF DOWN HOLE HAMMERS AND BITS SECTION IV AIR CONSUMPTION CHARTS CHAMPION 330 Champion Page 15 05/12/17 ® ® ® ® ®...

  • Page 20: Sectionv Lubrication

    The Champion 330 hammer requires a continuous supply of the correct type of Rock Drill Oil. The Champion 330 hammer consumes at least 20 quarts (19 litres) of Rock Drill Oil per hour in order to maintain adequate lubrication. See table 5-1 for recommended Rock Drill Oil.

  • Page 21: Section Vi Storage

    MANUFACTURER OF DOWN HOLE HAMMERS AND BITS SECTION VI STORAGE When storing a Champion hammer, it is important to take the necessary steps in order to insure smooth operation after restarting. When the hole is completed and the hammer is to be inactive for several weeks or longer the following steps should be followed: Each drill rod should be blown clear of all water.

  • Page 22: Restarting

    MANUFACTURER OF DOWN HOLE HAMMERS AND BITS Inspect and wipe all the parts clean. • • • • • Lubricate all the internal parts with Rock Drill Oil. See table 5-1 on page 16 for • • • • • suitable Rock Drill Oils.

  • Page 23: Section Vii Button Bit Maintenance

    BUTTON BIT MAINTENANCE GENERAL Numa button bits are designed for fast penetration and long life. Keeping the carbide buttons sharp has a direct effect on both the penetration and the tool life. As the bit wears, flat spots develop on the carbide buttons. These flat spots increase stress on the buttons causing the bit to work harder, which may cause button failure.

  • Page 24: Section Viii Champion 330 Recommended Spares

    NOTE CLASS 1 REPRESENTS A USER OF A CHAMPION 330 HAMMER THAT HAS READILY AVAILABLE SPARE PARTS. CLASS 2 REPRESENTS A USER OF A CHAMPION 330 HAMMER THAT DOES NOT HAVE READILY AVAILABLE SPARE PARTS. Champion Page 20 05/12/17 ® ® ® ® ®...
  • Page 25 MANUFACTURER OF DOWN HOLE HAMMERS AND BITS NOTES Champion Page 21 05/12/17 ® ® ® ® ®...
  • Page 26 MANUFACTURER OF DOWN HOLE HAMMERS AND BITS NOTES Champion Page 22 05/12/17 ® ® ® ® ®...

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