Numa Patriot 180 Maintenance manual

MANUFACTURER OF DOWN HOLE HAMMERS AND BITS
©2016 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180
CARE & MAINTENANCE
INSTRUCTIONS

Patriot®180
TABLE OF CONTENTS Page
Section I Description ..................................................................... 1
Functional Description ............................................................. 2
1. Backhead ........................................................................ 2
2. Pin ..................................................................................... 2
3. Check Valve ................................................................... 2
4. Check Valve Spring........................................................ 2
5. Choke .............................................................................. 2
6. Check Valve Guide........................................................ 2
7. Feed Tube ........................................................................ 2
8. Piston ................................................................................ 3
9. Case ................................................................................. 3
10. Bit Bearing........................................................................ 3
11. Snap Ring ........................................................................ 3
12. Bit Retaining Rings........................................................... 3
13. Thrust Washers - Brass..................................................... 3
14. Chuck............................................................................... 3
15. Chuck Bushing ................................................................ 4
16. Drive Plates ...................................................................... 4
Section II Maintenance................................................................. 4
Disassembly .............................................................................. 4
Inspection.................................................................................. 8
General Assembly.................................................................. 11
Hammer Assembly ................................................................. 11
Backhead / Feed Tube Assembly ........................................ 12
Section III Parts Identication ................................................... 15
Patriot 180 Exploded View ..................................................... 15
Part Number Reference ......................................................... 15
Section IV Air Consumption Chart.......................................... 16
Section V Lubrication................................................................... 17
Section VI Storage......................................................................... 18
Short Term................................................................................ 18
Long Term ................................................................................ 18
Restarting................................................................................. 19
Section VII Button Bit Maintenance ....................................... 20
General.................................................................................... 20
Sharpening .............................................................................. 20
Section VIII Patriot 180 Recommended Spares................ 21

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.

09/19/16 Page 1
Patriot®180
SECTION I
DESCRIPTION
GENERAL DESCRIPTION
The Patriot 180 is a valveless, pneumatically operated tool designed to utilize Numa 18"
to 30" (457 mm to 762 mm) diameter bits in rock formations under a wide range of operating
conditions.
The Patriot 180 hammer design incorporates a non-reversible, hardened case. The single
bore design allows for a maximum bore diameter in conjunction with optimum life against
abrasion. The simple design of the Patriot 180 provides performance and dependability
without sacricing tool life.
The Patriot 180 is designed for universal applications using air pressure from 100 PSI
to 250 PSI (6.8 Bar to 17.2 Bar) with compressors having capacities of 1350 CFM (637 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 15
for correct choke selection and pages 7 and 12 to facilitate the removal and the installation
of the choke. The Patriot 180 hammer is a high performance tool which may require additional
downfeed to maximize performance. Please contact your local Numa Representative for
further details.
Patriot 180
Weight w/o Bit 2,523 lbs. (1144 kg)
Outside Diameter 15-1/2" (394 mm)
Hammer Length:
Shoulder to Shoulder 65-15/16" (167 cm)
Shoulder to Bit Face 75-15/16" (193 cm)
Backhead API Thread 8-5/8 API REG
Table 1-1 General Hammer Specications
18" (457 mm) 1029 lbs. (468 kg) 26" (661 mm) 1751 lbs. (796 kg)
20" (508 mm) 1254 lbs. (570 kg) 28" (711 mm) 2007 lbs. (912 kg)
22" (559 mm) 1347 lbs. (612 kg) 30" (762 mm) 2275 lbs. (1034 kg)
24" (610 mm) 1616 lbs. (735 kg)
Table 1-2 General Bit Specications
NOTE
NUMA 18" TO 30" (457 MM TO 762 MM) BITS ARE AVAILABLE IN CONCAVE FACE
DESIGN WITH LARGE AIR FLUSHING HOLES AND CHIP WAYS TO TAKE ADVANTAGE
OF THE PATRIOT 180 PERFORMANCE. OTHER SIZES MAY BE AVAILABLE UPON
REQUEST.