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HDD40
OPERATIONS MANUAL
Care & Maintenance Instructions
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Do not discard this manual.
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Keep manual readily available for reference during operation or when servicing product.
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Before operation and maintenance, read and comprehend operations manual content.
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Customer Service: 800.356.NUMA or 860.923.9551
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Email: numa@numahammers.com
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Website: www.numahammers.com
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Mailing Address: P.O. Box 348, Thompson, CT 06277 USA
Patents: 6,883,618 7,442,074 10,612,310 11,085,242 EP 3 803 032 B1 KR-101340351 EP-2029325
CN-101448608 BR-P10711711 AU2007254317 AU2007254317 WO2007/136658
© 2024 Numa Tool Company. All Rights Reserved.
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Related Manuals for Numa HDD40
Summary of Contents for Numa HDD40
- Page 1 Email: numa@numahammers.com • Website: www.numahammers.com • Mailing Address: P.O. Box 348, Thompson, CT 06277 USA Patents: 6,883,618 7,442,074 10,612,310 11,085,242 EP 3 803 032 B1 KR-101340351 EP-2029325 CN-101448608 BR-P10711711 AU2007254317 AU2007254317 WO2007/136658 © 2024 Numa Tool Company. All Rights Reserved.
- Page 2 BHA (Adapter, Sonde Housing, Bent Sub, Hammer and Bit) to be pre-torqued. □ Sonde housing toolbox and at least one extra bit. □ Lubricator equipped with inlet/outlet 2” Boss fittings & Numa recommended Bioblend 150 or equivalent. □ Drill Rig (in good working condition) plumbed for air properly including check valve.
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Page 3: Table Of Contents
Long Term ................14 Restarting ................. 15 Section VII Button Bit Maintenance ........16 General ..................16 Sharpening ................16 Section VIII HDD40 Recommended Spares ......17 Section IX HDD40 Makeup Torque .......... 18 HDD40 Acceptable Grip Areas ..........18 HDD40... - 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.
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Page 5: Section I Description
The simple design of the HDD40 provides performance and dependability without sacrificing tool life. The HDD40 is designed for universal applications using air pressure from 150 PSI to 500 PSI (10.2 Bar to 34.5 Bar) with compressors having capacities of 140 CFM (66 Litres/Second) or more. -
Page 6: Functional Description
The feed tube supplies the main air into the chambers located in the piston. It is connected to the backhead by the pin. The feed tube is designed with a long bearing surface to maintain alignment in the backhead. HDD40 Page 2 11/07/2024... -
Page 7: Piston
CHUCK The chuck threads into the bottom end of the case with single start threads. It has internal splines that mesh with the splines on the bit body to transmit rotation. HDD40 Page 3 11/07/2024... -
Page 8: Section Ii Maintenance
• is much easier than trying to do so after the drill has been removed from the drill rig. 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. - Page 9 Continue tapping both the feed tube plug and choke out of the feed tube. Remove the backhead o-ring from the backhead. • Remove the check valve and check valve spring from the backhead. • HDD40 Page 5 11/07/2024...
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Page 10: Inspection
• Inspect all makeup surfaces for indentations or nicks caused by wear. • Remove all minor irregularities with emery cloth. • Replace if necessary. • Inspect pin for scoring or cracks. • Replace if necessary. • HDD40 Page 6 11/07/2024... - Page 11 Remove all internal irregularities with a fine honing stone. • Remove all external irregularities with an emery cloth. • Clearance between the bit shank and bit bearing should not exceed 0.010" (0.25 mm). • Replace if necessary. • HDD40 Page 7 11/07/2024...
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Page 12: General Assembly
All parts should be cleaned thoroughly and wiped dry before assembly. Oil all parts by hand using Rock Drill Oil to insure easy assembly. • Coat all thread connections with a thread compound to allow joints to thread easily. • HDD40 Page 8 11/07/2024... -
Page 13: Hammer Assembly
Screw the backhead into the case. • CAUTION DUE TO CLOSE TOLERANCES BETWEEN THE HDD40 INTERNAL PARTS AND THE CASE, NUMA CAN NOT ACCEPT RESPONSIBILITY FOR DAMAGE CAUSED BY WELDING ON THE CASE OD. WELDING ON THE CASE CAN CREATE DISTORTION, CAUSE PREMATURE FAILURE AND VOID THE WARRANTY. -
Page 14: Section Iii Parts Identification
Bit Bearing Retaining Feed Tube O-Ring 015957 (1) 009390 (1) Feed Tube O-Ring Bit Retaining Rings 015451 (1) 008995 (1) Bit Retaining Rings O-Ring Piston 008959 (1) 012928 (1) Chuck SST 018853 (1) Hammer Assembly #020169 Figure 3-1 HDD40 Page 10 11/07/2024... -
Page 15: Part Weights
0.2 oz (5.7 g) Choke 3/16" Hole 007111 0.1 oz (2.8 g) Choke 1/4" Hole 007112 0.1 oz (2.8 g) (installed in hammer) HDD40 Hammer 020169 89.0 (40.4 Kg) 2-3/8 Reg Pin SST * Weight is approximate. HDD40 Page 11 11/07/2024... -
Page 16: Section Iv Air Consumption Charts
SECTION IV AIR CONSUMPTION CHARTS HDD40 DRILL PRESSURE (BAR) 13.6 20.4 27.6 34.5 1400 1200 1000 94.4 DRILL PRESSURE (PSI) SOLID CHOKE 3/16 (4.8mm) CHOKE 1/8 (3.2mm) CHOKE 1/4 (6.4mm) CHOKE HDD40 Page 12 11/07/2024... -
Page 17: Section V Lubrication/Foam Use
The HDD40 hammer requires a continuous supply of the correct type Rock Drill Oil. The HDD40 hammer consumes at least one quart (1 litre) of Rock Drill Oil per hour in order to maintain adequate lubrication. When using Biodegradable Oils, you must increase the total amount by 25%. -
Page 18: Section Vi Storage
If at all possible, the backhead and chuck should be broken loose on the drill rig, this is much easier than trying to do so in the shop. Disassemble the hammer. • Inspect and wipe all the parts clean. • HDD40 Page 14 11/07/2024... -
Page 19: Restarting
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 FAILURE TO CHECK INTERNAL PARTS BEFORE RESTARTING THE HAMMER MAY CAUSE SERIOUS DAMAGE TO THE HAMMER. HDD40 Page 15 11/07/2024... -
Page 20: 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 21: Section Viii Hdd40 Recommended Spares
For Complete Hammer Assembly #020169 Table 8-1 NOTE Class 1 Represents a user of a HDD40 hammer that has readily available spare parts. Class 2 Represents a user of a HDD40 hammer that does not have readily available spare parts. -
Page 22: Section Ix Hdd40 Makeup Torque
HEATING OR STRIKING THE CASE WILL VOID THE WARRANTY. CASE / CHUCK JOINT 2.01 4.00 1.50 1.50 GRIP AREA GRIP AREA 1.75 19.15 4.00 4.00 CLAMPING IN THIS AREA WILL DISTORT THE CASE BORE HDD40 HAMMER HDD40 Page 18 11/07/2024... - Page 23 NOTES HDD40 Page 19 11/07/2024...
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