Numa Champion 330 Maintenance manual

MANUFACTURER OF DOWN HOLE HAMMERS AND BITS
Champion
®®
®®
®
330
CARE & MAINTENANCECARE & MAINTENANCE
CARE & MAINTENANCECARE & MAINTENANCE
CARE & MAINTENANCE
INSTRINSTR
INSTRINSTR
INSTRUCTIONSUCTIONS
UCTIONSUCTIONS
UCTIONS
©2017 Numa All Rights Reserved
P.O. Box 348 ••
••
•646 Thompson Road ••
••
•Thompson, CT 06277 USA
US Toll Free: (800) 356-NUMA ••
••
•Tel: [phone] ••
••
•Fax: [phone]
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

Champion
®®
®®
®
330
MANUFACTURER OF DOWN HOLE HAMMERS AND BITS
TABLE OF CONTENTS
Section I Description ......................................................... 1
Functional Description ............................................................. 2
1. Backhead ........................................................................ 2
2. Check Valve Seat ........................................................... 2
3. Check Valve Housing Spacer ....................................... 2
4. Check Valve ................................................................... 2
5. Check Valve Spring........................................................ 2
6. Check Valve Housing .................................................... 2
7. Belleville Washers ........................................................... 2
8. Feed Tube Retainer ......................................................... 2
9. Feed Tube Housing ......................................................... 3
10. Feed Tube ........................................................................ 3
11. Choke .............................................................................. 3
12. Piston ................................................................................ 3
13. Case ................................................................................. 3
14. Bit Bearing ....................................................................... 3
15. Snap Ring......................................................................... 3
16. Bit Retaining Rings........................................................... 3
17. Thrust Washers ................................................................. 4
18. Chuck .............................................................................. 4
19. Chuck Bushing ................................................................ 4
20. Drive Plates ...................................................................... 4
Section II Maintenance ..................................................... 5
Disassembly .............................................................................. 5
Inspection ................................................................................. 8
General Assembly .................................................................. 10
Feed Tube Assembly .............................................................. 10
Check Valve Assembly ......................................................... 10
Hammer Assembly ................................................................. 11
Section III Parts Identification........................................... 13
Champion 330 Exploded View ...................................... 13 & 14
Part Number Reference ................................................. 13 & 14
Section IV Air Consumption Charts .................................15
SectionV Lubrication .........................................................16
Section VI Storage ............................................................17
Short Term................................................................................ 17
Long Term ................................................................................ 17
Restarting ................................................................................ 18
Section VII Button Bit Maintenance .................................19
General ................................................................................... 19
Sharpening .............................................................................. 19
Section VIII Champion 330 Recommended Spares ...... 20
Page

04/23/10
MANUFACTURER OF DOWN HOLE HAMMERS AND BITS
WARRANTIES AND REMEDIES
LIMITED WARRANTY
Numa warrants that the Product will be new and free from defects in material and
workmanship under normal use as contemplated by this Contract for a period of six (6) months from
the date of shipment.
Except for the foregoing warranty, Numa disclaims all warranties and representations wherever
made, including warranties of merchantability, durability, length of service, or fitness for a particular
purpose.
Any alteration or modification of the original product without the express written consent of
Numa will void this warranty.
REMEDY
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.
Such repair, replacement, or credit of Product shall constitute complete fulfillment of Numa's
obligation under this warranty, and upon the expiration of the original warranty 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 revenues. The remedies set forth in this Contract are exclusive, and the total
cumulative liability of Numa under this Contract or for any act or omission in connection therewith
or related thereto, whether in contract, in tort (including negligence and strict liability), under any
warranty or otherwise, is limited to the price paid by Buyer for the Product.
The WARNINGS, CAUTIONS and NOTES used throughout the text of this
instruction book are defined as follows:
WARNING A specific procedure or practice that must be strictly followed,
or a specific condition that must be met, to prevent possible
bodily harm.
CAUTION A specific procedure or practice that must be strictly followed,
or a specific condition that must be met, to prevent damage to
the equipment.
NOTE Important supplemental information.
Numa®,Champion
®®
®®
®
, and Patriot
®®
®®
®
are registered trademarks of Numa.

Champion
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MANUFACTURER OF DOWN HOLE HAMMERS AND BITS
Page 1
05/12/17
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. The
simple design of the Champion 330 provides performance and dependability without sacrificing
tool life.
The Champion 330 is designed for universal applications using air pressure from 100 PSI
to 200 PSI (6.8 Bar to 13.6 Bar) with compressors having capacities of 3000 CFM (1416 Litres/
Second) or more. Depending on the hole size, rod size and rock conditions, additional hole
cleaning air or foam may be required. When drilling conditions 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 15 for correct choke selection and pages 7 and 10 to facilitate the
removal and the installation of the choke.
Champion 330
Weight w/o Bit 12556 lbs. (5695 kg)
Outside Diameter 28" (711 mm)
Hammer Length:
Shoulder to Shoulder 89-1/2" (227 cm)
Shoulder to Bit Face 105-1/2" (268 cm)
Backhead API Thread 10 Beco Pin
Table 1-1 General Hammer Specifications
32" (813 mm) 4910 lbs. (2227 kg)
34" (864 mm) 5125 lbs. (2329 kg)
36" (914 mm) 5300 lbs. (2409 kg)
38" (965 mm) 6740 lbs. (3064 kg)
39-1/2" (1003 mm) 6925 lbs. (3148 kg)
42" (1067 mm) 7332 lbs. (3333 kg)
48" (1219 mm) 8350 lbs. (3787 kg)
Table 1-2 General Bit Specifications
NOTE
NUMA 32" TO 48" (813 MM TO 1219 MM) BITS ARE AVAILABLE IN A REVOLUTIONARY
FLAT FACE DESIGNS WITH LARGE AIR FLUSHING HOLES AND CHIP WAYS TO TAKE
ADVANTAGE OF THE CHAMPION 330 PERFORMANCE. OTHER SIZES MAY BE
AVAILABLE UPON REQUEST.

Page 2
Champion
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330
MANUFACTURER OF DOWN HOLE HAMMERS AND BITS
05/12/17
FUNCTIONAL DESCRIPTION
1. 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" Beco pin thread. Wrench flats are provided for
disassembly.
2. CHECK VALVE SEAT
The check valve seat provides a replaceable sealing surface for the check valve.
3. CHECK VALVE HOUSING SPACER
The check valve housing spacer positions the check valve housing in the backhead to
insure proper movement of the check valve.
4. CHECK VALVE
The check valve maintains pressure in the hammer when the air supply has been
shut off. The check valve in the hammer balances the hydrostatic 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 HOUSING
The check valve housing guides the check valve and the check valve spring. The main
air supply is directed to the feed tube through ports located in the check valve housing.
7. BELLEVILLE WASHERS
The belleville washers keep the feed tube housing tight against the shoulder in the
hammer.
8. FEED TUBE RETAINER
The feed tube retainer keeps the feed tube seated in the proper location. The feed tube
retainer also allows air to flow to the piston and feed tube.

Champion
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MANUFACTURER OF DOWN HOLE HAMMERS AND BITS
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05/12/17
9. 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. The feed tube housing locates and aligns the feed tube.
10. FEED TUBE
The feed tube supplies air to the piston. It seats on a shoulder in the feed tube housing
and is designed with a long bearing surface to maintain alignment in the feed tube
housing.
11. CHOKE
The interchangeable choke is located in the tip of the feed tube and is held in place with
a press fit. A set of two chokes is supplied with each hammer. By installing the correct
choke, the hammer can be fine tuned to the compressor package.
12. PISTON
The piston functions as the only moving part in the hammer, controlling the operational
air cycle. The percussive action of the piston striking the bit transfers the energy through
the bit in order to fracture rock formations.
13. CASE
The case is designed to contain the internal parts which make up the hammer
assembly. The case is hardened to resist wear and to extend life in abrasive conditions.
14. BIT BEARING
The bit bearing guides the top end of the bit to insure proper alignment between the
piston and the bit. The bit bearing is positioned into the chuck end of the case and is
held in place by the snap ring.
15. SNAP RING
The snap ring sits in a groove in the case and retains the bit bearing.
16. BIT RETAINING RINGS
The bit retaining rings are designed to allow the bit to move between the drilling and
cleaning positions and prevent the bit from coming completely out of the hammer. The
bit retaining rings consist of two matched halves and are held together with the bit
retaining ring o-ring.

Page 4
Champion
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330
MANUFACTURER OF DOWN HOLE HAMMERS AND BITS
05/12/17
17. 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.
18. CHUCK
The chuck threads into the bottom end of the case with a large cross section thread
form. It has internal splines that transmit rotation to the bit through a set of delrin drive
plates. Wrench flats are provided for disassembly.
19. CHUCK BUSHING
The chuck bushing is a nylon insert located in the bottom end of the chuck to provide
a bearing surface between the lower bit shank and the chuck.
20. DRIVE PLATES
The plastic drive plates provide wear protection for the splines. They are inserted
between the chuck and the bit. A complete drive plate set is sent with each bit.

Champion
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MANUFACTURER OF DOWN HOLE HAMMERS AND BITS
Page 5
05/12/17
SECTION II
MAINTENANCE
DISASSEMBLY
••
••
•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.
••
••
•Tools needed: hammer stand, 26" (660 mm) "J" or fork wrench (possibly incorporated
in the hammer stand), overhead crane or lift truck, pulldown visetong with a 28" (711
mm) diameter capacity or a self contained power wrench capable of 200,000 foot
pounds (27,624 KGM) of torque, 2" (51 mm) diameter brass rod or mild steel rod 3 to 5
feet (1 m to 1.5 m) long, snap ring pliers, a drift pin and several different sized
screwdrivers.
••
••
•Clean the outside of the hammer. This will insure a good surface to clamp on.
••
••
•Using an overhead crane or lift truck of appropriate capacity, place the hammer on a
hammer stand and secure it in the wrench. The chuck end can be held by the 26" (660
mm) flats, in the wrench. The backhead is also held in the 26" (660 mm) wrench. Place
the visetongs on the area of the case where the bit bearing is located when working on
the chuck end of the hammer. When working on the backhead end of the hammer,
place the chain vise on the area of the case where the feed tube housing in located.
Hammer Stand/Wrench Diagram
Figure 2-1
Pulldown Visetongs
Petol No. VTDA120
Force Direction Required:
15,000 - 25,000 lbs.
(6,800 - 11,400 Kg.)
Champion
330
Blocking to
height of stand
Hammer stand and wrench
combination, structural steel,
I-Beam, weld construction
bracing to suit.

Page 6
Champion
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MANUFACTURER OF DOWN HOLE HAMMERS AND BITS
05/12/17
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.
••
••
•With the chuck secured in the fork wrench (see figure 2-1), loosen the joint by turning
the case with the visetongs. Remove the hammer from the wrench and turn the hammer
end to end in the hammer stand / wrench. With the backhead flats secured in the fork
wrench (see figure 2-1), loosen the joint by turning the case with the visetongs.
••
••
•With the crane or lift truck, move the hammer into an upright position with the chuck end
down. With an adequate lifting device, lift and support the hammer while unscrewing
and removing the chuck, bit, bit retaining rings and bit retaining rings o-ring. After
setting the hammer down, and while lifting and supporting the backhead, unscrew and
remove the backhead from the case.
••
••
•Remove the backhead o-ring and thrust washer from the backhead.
••
••
•Remove the belleville washers from the top of the feed tube assembly.
••
••
•Remove the thrust washer from the chuck.
••
••
•Remove the drive plates from the chuck.
••
••
•Remove the o-ring from the bit retaining rings.
••
••
•Removal of the chuck bushing is not necessary for routine maintenance. If necessary,
position the chuck so the bit end is facing you. Locate the seam in the chuck bushing.
Insert a screwdriver into the slot in the middle of the seam and pry the chuck bushing
from the under cut. Remove the chuck bushing from the bit end of the chuck.
••
••
•Using a 2" (51 mm) diameter brass rod, slide the piston against the feed tube assembly
and push the feed tube assembly out the backhead end of the case.
••
••
•Slide the piston out the backhead end of the case.
••
••
•Lay the backhead on its side. Using a broom handle, go through the API thread end of
the backhead and tap out the feed tube retainer, check valve housing, check valve,
checkvalve spring and check valve housing spacer. The check valve seat will remain
in the backhead. This part only acts as a spacer and does not need to be removed.

Champion
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MANUFACTURER OF DOWN HOLE HAMMERS AND BITS
Page 7
05/12/17
••
••
•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. Pull and twist
the snap ring toward the chuck end of the case, until it is clear of the groove. Using a
2" (51 mm) diameter rod, knock the bit bearing toward the chuck end of the case. The
bit bearing is a tight slip fit in the case. However, rust or corrosion may make it difficult
to move and a penetrating oil can be used to help with removing the bit bearing from
the case.
••
••
•Disassembly of the feed tube assembly is not necessary for routine maintenance. If
necessary, tap on the choke end of the feed tube. This will cause the feed tube to
protrude from the feed tube housing. Grasp the feed tube and slide it out of the feed
tube housing. Slide the feed tube compression ring off the choke end of the feed tube.
Place the feed tube collar toward the work bench. Using a drift pin, tap the choke from
the feed tube pressing diameter. The choke will fall out of the collar end of the feed tube.
Using a small screwdriver, pick the two feed tube o-rings from the smallest bore of the
feed tube housing.

Page 8
Champion
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MANUFACTURER OF DOWN HOLE HAMMERS AND BITS
05/12/17
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.
BACKHEAD
••
••
•Inspect the threads for cracks and burrs.
••
••
•Remove all burrs on the thread area with a fine file.
••
••
•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 ASSEMBLY
••
••
•Inspect the outside diameters for nicks, burrs and scoring.
••
••
•Inspect all makeup surfaces for indentations or nicks caused by wear.
••
••
•Remove all minor irregularities with emery cloth.
••
••
•Inspect the choke to insure that it is properly seated.
••
••
•Replace if necessary.
PISTON
••
••
•Inspect the striking face, inside and outside diameters for nicks, scoring and cracks.
••
••
•Polish the piston with emery cloth to remove all minor irregularities, cracked pistons
should be replaced.
••
••
•Wash the piston thoroughly, inside and out, to remove all emery dust.

Champion
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MANUFACTURER OF DOWN HOLE HAMMERS AND BITS
Page 9
05/12/17
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" (.76 mm).
••
••
•Replace if the outside diameter is worn to 27" (686 mm) or less near the chuck end.
BIT BEARING
••
••
•Inspect the inside and outside for nicks and burrs.
••
••
•Remove all internal irregularities with a fine honing stone.
••
••
•Remove all external irregularities with emery cloth.
••
••
•Clearance between the bit shank and bit bearing should not exceed .048" (1.22 mm).
••
••
•Replace if necessary.
SNAP RINGS
••
••
•Inspect the snap rings for severe wear indications.
••
••
•Replace if necessary.
CHUCK
••
••
•Inspect for cracks and burrs.
••
••
•For continued use, the outside diameter should be larger than the outside of the case
or the same. Collar length should not be less than 6-3/4" (171 mm).
CAUTION
IF THE COLLAR LENGTH IS LESS THAN 6-3/4" (171 MM) AND THE BIT IS
UNDER LOAD CONDITIONS, CONTACT 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 .375" (9.5 mm).
••
••
•Inspect the drive plates and chuck bushing.
••
••
•Replace if cracked or worn.

Page 10
Champion
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MANUFACTURER OF DOWN HOLE HAMMERS AND BITS
05/12/17
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.
GENERAL ASSEMBLY INSTRUCTIONS
••
••
•Assembly should be performed in a clean environment.
••
••
•All parts should be cleaned thoroughly and wiped dry before assembly.
••
••
•Oil all parts by hand using Rock Drill Oil (see table 5-1 on page 16) to insure easy
assembly.
••
••
•Coat all thread connections and thrust washers with a thread compound to allow joints
to thread easily.
FEED TUBE ASSEMBLY
••
••
•Install the feed tube o-rings in the two grooves located in the smallest inside diameter
of the feed tube housing.
••
••
•With the smaller diameter of the choke toward the collar end of the feed tube bore, slide
the choke all the way to the pressing diameter. Using a long drift pin, tap the choke into
the pressing diameter.
••
••
•Using the piston as a fixture, place the smallest diameter of the feed tube housing
against the top of the piston, lining up the bores. Put the feed tube compression ring over
the feed tube. Insert the choke end of the feed tube into the feed tube housing. Slide
the feed tube into the feed tube housing until the collar rests against the housing
shoulder. Remove the assembly from the piston.
CHECK VALVE ASSEMBLY
••
••
•Place the backhead on its side. Install the check valve seat o-rings around the check
valve seat.
••
••
•Align the check valve seat into the backhead. Using a large plastic rod and hammer,
tap the check valve seat into the backhead until the check valve seat is seated against
the shoulder inside the backhead.

Champion
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MANUFACTURER OF DOWN HOLE HAMMERS AND BITS
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05/12/17
HAMMER ASSEMBLY
••
••
•Insert the bit bearing into the chuck end of the case. This should be a close slip fit.
Making sure the bearing makes contact with the shoulder provided for it in the case,
insert the snap ring into the groove at the chuck end of the bit bearing diameter.
••
••
•Slide the piston into the backhead end of the case. Push the piston all the way to the
chuck end. The piston should ride in the case smoothly. Push the piston back to the
backhead end to facilitate the assembly of the feed tube assembly.
••
••
•Install the feed tube assembly into the backhead end of the case, making sure it is firmly
against the shoulder in the case. It is easier if the feed tube end can be supported in
the piston ID at initial installation. This requires the piston to be at the backhead end of
the case prior to feed tube assembly installation. Due to close tolerances, caution is
advised when inserting the feed tube assembly. It should not be forced into the case.
••
••
•Install the chuck bushing in the chuck. With the bit face down, place the chuck over
the top of the bit. Align the splines and lower the chuck completely onto the bit. Rotate
the chuck counterclockwise until the splines meet and insert the drive plates between
the chuck and bit splines. See Figure 2-3.
C330 Drive Plate Positioning as Viewed from Top
Figure 2-3
••
••
•With the crane or lift truck and appropriate lifting device, set the hammer case
assembly in an upright position with the chuck end down. Install the belleville washers
in the backhead end on the feed tube assembly. See the stacking diagram on page
13 for proper installation. Assemble the backhead o-ring in the groove in the
backhead. Lift the backhead, place the thrust washer against the thread shoulder
and thread the backhead into the case. Prior to lifting the hammer by the backhead,
Drive Plate
••
••
•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
backhead and tap the feed tube retainer into the backhead until it seats against the
check valve housing.

Page 12
Champion
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330
MANUFACTURER OF DOWN HOLE HAMMERS AND BITS
05/12/17
the case to backhead thread joint must be tightened as much as MANUALLY
possible (see note below). This will assure full thread contact when using the
backhead to lift the entire assembly.
NOTE
DUE TO THE INTERNAL COMPRESSION SPRINGS, THE CHAMPION 330 BACKHEAD
CAN ONLY BE FULLY 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
installed on top of the chuck. Place the thrust washer on the shoulder of the chuck.
Placing the chuck assembly beneath the hammer, thread the hammer down on the
chuck threads until flush to the thrust washer.
CAUTION
DUE TO CLOSE TOLERANCES BETWEEN THE CHAMPION 330 INTERNAL PARTS AND
THE CASE, NUMA CANNOT 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. CONTACT NUMA FOR
SPECIAL INSTRUCTIONS IF WELDING THE CASE BECOMES UNAVOIDABLE.

Champion
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MANUFACTURER OF DOWN HOLE HAMMERS AND BITS
Page 13
05/12/17
Backhead 10 Beco Pin
016418 (1)
Backhead O-Ring
008913 (1)
Check Valve Seat O-Ring
005775 (2)
Check Valve Seat
008969 (1)
Check Valve Housing Spacer
008972 (1)
Check Valve
008970 (1)
Check Valve Spring
008973 (1)
Check Valve Housing
008971 (1)
Thrust Washer
008925 (1)
Belleville Washers
008921 (2)
See Exploded View
Figure 3-2
Page 14
Piston
008985 (1)
HAMMER ASSEMBLY #015064
Figure 3-1
Case
015065 (1)
Bit Bearing
008909 (1)
Snap Ring
008911 (1)
Bit Retaining Rings
008910 (1)
Bit Retaining Rings O-Ring
008913 (1)
Thrust Washer
008925 (1)
Chuck
008904 (1)
Chuck Bushing
008908 (1)
SECTION III
PARTS IDENTIFICATION
EXPLODED VIEW
Exploded
View of
Belleville Washers
Correct
Stacking

Page 14
Champion
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330
MANUFACTURER OF DOWN HOLE HAMMERS AND BITS
05/12/17
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)
Feed Tube Housing
008986 (1)
SECTION III
PARTS IDENTIFICATION
EXPLODED VIEW
Figure 3-2

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

Page 16
Champion
®®
®®
®
330
MANUFACTURER OF DOWN HOLE HAMMERS AND BITS
05/12/17
SECTION V
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.
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 ARE THE ONLY ACCEPTABLE LUBRICANTS. SAE 50 ROCK
DRILL OIL SHOULD BE USED IN AMBIENT TEMPERATURES OF 80° FAHRENHEIT
(27° CELSIUS) OR HIGHER. CONTACT NUMA FOR ACCEPTANCE OF
ALTERNATIVE ROCK DRILL LUBRICANTS.
CAUTION
THE CHAMPION 330 HAMMER, AS WITH ANY MACHINE, REQUIRES
CONTINUOUS LUBRICATION. THE FAILURE TO SUPPLY ADEQUATE
LUBRICATION TO THE HAMMER CAN CAUSE PREMATURE FAILURE AND MAY
VOID THE WARRANTY.