Numa Patriot 45 Maintenance manual

MANUFACTURER OF DOWN HOLE HAMMERS AND BITS
©2015 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
Patriot45
CARE & MAINTENANCE
INSTRUCTIONS

Patriot®45
TABLE OF CONTENTS Page
Section I Description ..................................................................... 1
Functional Description ............................................................. 2
1. Backhead ........................................................................ 2
2. Pin ..................................................................................... 2
3. Backhead Bearing.......................................................... 2
4. Check Valve ................................................................... 2
5. Check Valve Spring........................................................ 2
6. Check Valve Guide........................................................ 2
7. Choke .............................................................................. 2
8. Feed Tube ........................................................................ 2
9. Piston ................................................................................ 3
10. Case ................................................................................. 3
11. Snap Ring ........................................................................ 3
12. Bit Bearing........................................................................ 3
13. Bit Bearing Retainer 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 Identication ................................................... 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 Bit Maintenance ....................................... 15
General.................................................................................... 15
Sharpening .............................................................................. 15
Section VIII Patriot 45 Recommended Spares .................. 16

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 tness for a particular
purpose.
Any alteration or modication of the original product without the express written consent of
Numa will void this warranty.
REMEDY
If, during such warranty period, Buyer promptly noties 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 fulllment 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 prots 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 dened as follows:
WARNING A specic procedure or practice that must be strictly followed,
or a specic condition that must be met, to prevent possible
bodily harm.
CAUTION A specic procedure or practice that must be strictly followed,
or a specic condition that must be met, to prevent damage
to the equipment.
NOTE Important supplemental information.
Numa®,Champion, and Patriot are registered trademarks of Numa.

10/03/16 Page 1
Patriot®45
SECTION I
DESCRIPTION
GENERAL DESCRIPTION
The Patriot 45 is a valveless, pneumatically operated tool designed to utilize Numa
TD40 4-1/2" to 5-1/4" (114 mm to 133 mm) diameter bits in rock formations under a wide
range of operating conditions.
The Patriot 45 hammer design incorporates a hardened reversible case. The single
bore design allows for a maximum bore diameter in conjunction with optimum life against
abrasion. The simple design of the Patriot 45 provides performance and dependability without
sacricing tool life.
The Patriot 45 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 335 CFM (158 Litres/
Second) or more. 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 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)
Hammer Length:
Shoulder to Shoulder 36.40" (92 cm)
Shoulder to Bit Face 39.66" (100 cm)
Backhead API Thread 2-3/8 API REG
Table 1-1 General Hammer Specications
4-1/2" 21 lbs 114 mm 9.5 kg
4-3/4" 22 lbs 121 mm 10.0 kg
5" 22 lbs 127 mm 10.0 kg
5-1/8" 23 lbs 130 mm 10.4 kg
5-1/4" 24 lbs 133 mm 11.0 kg
Table 1-2 General Bit Specications
NOTE
NUMA 4-1/2" TO 5-1/4" (114 MM TO 133 MM) BITS ARE AVAILABLE IN CONCAVE,
CONVEX OR FLAT FACE DESIGNS WITH LARGE AIR FLUSHING HOLES AND CHIP
WAYS TO TAKE ADVANTAGE OF THE PATRIOT 45 PERFORMANCE. OTHER SIZES
MAY BE AVAILABLE UPON REQUEST.

Page 2 10/03/16
Patriot®45
FUNCTIONAL DESCRIPTION
1. BACKHEAD
The backhead connects the hammer to the drill rod. It is threaded into the top end of
the case with double start threads and into the drill rod with a standard 2-3/8 API REG
thread. Wrench ats are provided for disassembling.
2. PIN
The pin aligns the feed tube assembly into the backhead. It is made of hardened
steel to insure long life.
3. BACKHEAD BEARING
The backhead bearing aligns and seals the backhead into the case bore.
4. CHECK VALVE
The check valve maintains pressure in the hammer when the air supply has been shut
off. The pressure 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 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 is located in the tip of the feed tube and is held in place
with a press t. A set of four chokes is supplied with each hammer. By installing the
correct choke, the hammer can be ne tuned to the compressor package.
8. FEED TUBE
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.

10/03/16 Page 3
Patriot®45
9. 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. A snap ring inserted in the main
bore prevents the piston from sliding out of the case when the chuck, bit, bit retaining
rings and bit bearing are removed.
10. CASE
The case is designed to contain the internal parts which make up the hammer
assembly. The case is reversible and hardened to resist wear and to extend life in
abrasive conditions. Double start threads on each end of the case allow for ease of
disassembly.
11. SNAP RING
A snap ring positions the internal parts in the 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 in a groove in the case and retains the bit bearing.
14. 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.
15. CHUCK
The chuck threads into the bottom end of the case with double start threads. It has
internal splines that mesh with the splines on the bit body to transmit rotation.
Patriot

45

Page 4 10/03/16
Patriot®45
SECTION II
MAINTENANCE
DISASSEMBLY
•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 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. STRIKING THE HAMMER
PARTS WITH HAMMERS, CROWBARS OR LIKE INSTRUMENTS WILL VOID THE WARRANTY.
•Maintenance should be performed in a clean environment.
• Tools needed: hammer stand, chain vise, 2" (51 mm) diameter brass rod, a drift pin,
a small screwdriver and a 3/8" (10 mm) diameter 24" (610 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 1.90" (48 MM) BEYOND THIS POINT AND 3.25" (82 MM)
FROM THE CHUCK END OF THE CASE, TO AN ADDITIONAL 1.90" (48 MM) BEYOND
THIS POINT. PLACING THE CHAIN VISE ON THE AREA OF THE CASE WHERE THE
PISTON CYCLES CAN DISTORT THE CASE, RESTRICT PISTON MOVEMENT AND VOID
THE WARRANTY.
•Unscrew the backhead / feed tube assembly from the case.
•Slide the piston out of the case.
•Unscrew the chuck and remove from the case.
•Remove the bit retaining rings from the case. Remove the bit retaining rings o-ring
from the bit retaining rings.

10/03/16 Page 5
Patriot®45
•Removal of the bit bearing retainer o-ring, bit bearing and the snap ring in the chuck
end is not necessary for routine maintenance. If necessary, use a small screwdriver
or similar device to pick the bit bearing retainer o-ring from the groove. Slide the bit
bearing out the chuck end of the case. Slide the piston into the backhead end of
the case with the serial number of the piston facing the chuck end of the case. With
a 2" (51 mm) diameter brass rod, tap or press on the piston to remove the snap ring.
•To disassemble the backhead / feed 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) diameter, 24"
(610 mm) long rod and tap the choke downward, toward the check valve guide.
Continue tapping both the choke, check valve guide and check valve guide o-ring
out of the feed tube. Remove the o-ring from the check valve guide.
•Remove the backhead o-ring and backhead bearing from the backhead.
•Remove the check valve and check valve spring from the backhead.

Page 6 10/03/16
Patriot®45
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 and pin hole for cracks and burrs.
• Remove all burrs on the thread with a ne le.
•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 makeup surfaces for indentations or nicks caused by wear.
•Remove all minor irregularities with emery cloth.
•Replace if necessary.

10/03/16 Page 7
Patriot®45
PIN
•Inspect pin for scoring or cracks.
•Replace if necessary.
SNAP RING
•Inspect the snap ring for severe wear indications.
•Remove or round over any sharp edges.
•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.
CASE
•Inspect the outside diameter for excessive wear or cracks. Inspect the internal case
bore for scoring.
• Remove all minor irregularities with ne 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 BEARING
•Inspect the inside and outside for nicks and burrs.
• Remove all internal irregularities with a ne 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.

Page 8 10/03/16
Patriot®45
BIT RETAINING RINGS
•Inspect for cracks or deformations.
• Remove all irregularities with a le or emery cloth.
•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 1.935" (49 mm).
CAUTION
IF THE COLLAR LENGTH IS LESS THAN 1.935" (49 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 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 clean environment.
•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.

10/03/16 Page 9
Patriot®45
HAMMER ASSEMBLY
•Select the larger, outside diameter end of case to be the chuck end.
•Insert the snap ring into the groove located in the chuck end of case, making sure it
seats properly in the groove.
•Install the bit bearing and bit bearing retainer o-ring.
•Insert the bit retaining rings, with the o-ring installed, in the chuck end of the case.
• Thread the chuck into the case and hand tighten. The chuck shoulder should sit at
against the bottom of the case.
•Slide the piston in the backhead end of the case. Push the piston all the way to the
chuck end. The piston should ride in the case very smoothly.
BACKHEAD / FEED TUBE ASSEMBLY
•Place the backhead on the bench with the API threads facing down. Install the
backhead o-ring into the groove located on the outside diameter.
•Insert 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 rubber mallet, tap the feed tube into the backhead, aligning the hole on the
feed tube with the hole in the backhead.
•Using a rubber mallet, tap the backhead / feed tube pin into the hole, seating it
through both the feed tube and backhead equally.
•Screw the backhead into the case.
CAUTION
DUE TO CLOSE TOLERANCES BETWEEN THE PATRIOT 45 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. CONTACT NUMA FOR
SPECIAL INSTRUCTIONS IF WELDING THE CASE BECOMES UNAVOIDABLE.

Page 10 10/03/16
Patriot®45
Backhead 2-3/8 Reg Pin
015274 (1)
Backhead O-Ring
005566 (1)
Backhead Bearing
018220 (1)
Pin
015692 (1)
Check Valve
017466 (1)
Check Valve Spring
017467 (1)
Check Valve Guide
018289 (1)
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45

10/03/16 Page 11
Patriot®45
SECTION IV
AIR CONSUMPTION 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

Page 12 10/03/16
Patriot®45
SECTION V
LUBRICATION
The Patriot 45 hammer requires a continuous supply of the correct type Rock Drill Oil
or an adequate application of Numa Enviro Lube. The Patriot 45 hammer consumes at least
one quart (1 litre) of Rock Drill Oil per hour in order to maintain adequate lubrication. See
table 5-1 for recommended Rock Drill Oil.
As an alternative to Rock Drill Oil, Numa Enviro Lube provides continuous protection
for the Patriot 45 when 3 oz. (.09 litres) are used every 300' (92 m) or four hours of drilling,
whichever occurs rst. 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. 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 PATRIOT 45, 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.

10/03/16 Page 13
Patriot®45
SECTION VI
STORAGE
When storing a Patriot hammer, it is important to take the necessary steps in order to
insure a 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. During this process, turn on the in
line lubricator and blow until the rock drill oil can be seen from the bottom end of each drill
rod. In addition, each rod (pin and box end) should be wiped clean and capped to prevent
foreign 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 horizontally in a dry environment.
LONG TERM STORAGE
When the Patriot hammer will be stored for a long period of time the following steps
should be taken:
•Blow the hammer clear of all water.
•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.

Page 14 10/03/16
Patriot®45
•Lubricate all the internal parts with Rock Drill Oil. See table 5-1 on page 12 for suitable
Rock Drill Oils.
•Cap the backhead and chuck ends.
•Store the hammer horizontally in a dry 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
FAILURE TO CHECK INTERNAL PARTS BEFORE RESTARTING THE HAMMER MAY CAUSE
SERIOUS DAMAGE TO THE HAMMER.

10/03/16 Page 15
Patriot®45
SECTION VII
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 at, spots develop on the carbide buttons. These at spots increase
stress on the buttons causing the bit to work harder, which may cause button failure. Bit
sharpening can minimize these problems.
Gauge buttons will usually show the most wear and should be used to determine the
frequency of bit sharpening. When the ats on the gauge buttons become a maximum of
1/8" (3 mm) wide it is time to resharpen. Refer to gure 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 at. Grind the button to its original shape
leaving the mark untouched. Refer to gure 7-1. It is important to leave the center of the
at untouched to insure concentricity.
Button Resharpening
Figure 7-1
1/8" MAX (3 MM)
FLAT TOP VIEW
SIDE VIEW
SIDE VIEW
ORIGINAL SHAPE
SHARPEN TO
OVAL SHAPE

Page 16 10/03/16
Patriot®45
SECTION VIII
RECOMMENDED SPARES
Patriot 45
Product Description Part Number Class 1 Class 2
Backhead 2-3/8 Reg Pin 015274 0 1
Backhead O-Ring 005566 1 2
Backhead Bearing 018220 1 2
Pin 015692 1 2
Check Valve 017466 1 2
Check Valve Spring 017467 1 2
Check Valve Guide 018289 1 2
Check Valve Guide O-Ring 018273 1 2
Feed Tube Assembly 015269 1 2
Choke (Blank) 005559 0 1
Feed Tube 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 #017864
Table 8-1
NOTE
Class 1 Represents a user of a Patriot 45 hammer that has readily
available spare parts.
Class 2 Represents a user of a Patriot 45 hammer that does not
have readily available spare parts.