Quantcast PNEUMATIC CHIPPING HAMMER - 14310_50

Share on Google+Share on FacebookShare on LinkedInShare on TwitterShare on DiggShare on Stumble Upon
Custom Search
 
  
Q31. List the safety precautions that apply to power tools. Q32. List   the   safety   precautions   that   apply   to extension cords. PORTABLE PNEUMATIC POWER TOOLS LEARNING   OBJECTIVES: Identify dif- ferent types of portable pneumatic power tools. Describe the uses of different types of portable pneumatic power tools. List the safety precautions that apply to portable pneumatic power tools. Portable pneumatic power tools are tools that look much  the  same  as  electric  power  tools  but  use  the energy of compressed air instead of electricity. Because of  the  limited  outlets  for  compressed  air  aboard  ship and shore stations, the use of pneumatic power tools is not as widespread as electric tools. Portable pneumatic tools  are  used  most  around  a  shop  where  compressed air outlets are readily accessible. PNEUMATIC CHIPPING HAMMER The    pneumatic    chipping    hammer    (fig.    1-64) consists basically of a steel piston that is reciprocated (moved  backward  and  forward  alternately)  in  a  steel barrel  by  compressed  air.  On  its  forward  stroke  the piston strikes the end of the chisel, which is a sliding fit in a nozzle pressed into the barrel. The rearward stroke is    cushioned    by    compressed    air    to    prevent    any metal-to-metal  contact.  Reciprocation  of  the  piston  is automatically controlled by a valve located on the rear end of the barrel. Located on the rear end of the barrel is a grip handle, containing a throttle valve. The pneumatic hammer may be used for beveling; caulking  or  beading  operations;  and  for  drilling  in brick, concrete, and other masonry. Chipping hammers should not be operated without safety goggles, and all other persons in the immediate vicinity of the work should wear goggles. While  working,  never  point  the  chipping  hammer in such a direction that other personnel might be struck by  an  accidentally  ejected  tool.  When  chipping  alloy steel or doing other heavy work, it is helpful to dip the tool in engine lubricating oil about every 6 inches of the cut and make sure the cutting edge of the tool is sharp and clean. This will allow faster and easier cutting and will reduce the possibility of the tool breaking. When  nearing  the  end  of  a  cut,  ease  off  on  the throttle lever to reduce the intensity of the blows. This will avoid any possibility of the chip or tool flying. If  for  any  reason  you  have  to  lay  the  chipping hammer down, always remove the attachment tool from the nozzle. Should the chipping hammer be accidentally  started  when  the  tool  is  free,  the  blow  of the piston will drive the tool out of the nozzle with great force and may damage equipment or injure personnel. ROTARY AND NEEDLE IMPACT SCALERS Rotary and needle scalers (figs. 1-65 and 1-66) are used to remove rust, scale, and old paint from metallic and masonry surfaces. You must be especially careful when   using   these   tools   since   they   will   "chew"   up anything in their path. Avoid getting the power line or any part of your body in their way. The  rotary  scaling  and  chipping  tool,  sometimes called a "jitterbug," has a bundle of cutters or chippers for  scaling  or  chipping  (fig.  1-65).  In  use,  the  tool  is pushed along the surface to be scaled, and the rotating chippers do the work. Replacement bundles of cutters are available when the old ones are worn. 1-40 Figure 1-64.—Pneumatic chipping hammer. Figure 1-65.—Rotary impact scaler.



Aviation News
GE Looks to Lower H Series Fuel Costs
An H80 powered L-410 aircraft. Photo: GE [Avionics Today 08-22-2014]...
aviationtoday.com
MD 530G Shows Its Muscles at Yuma
The MD 530G scout attack helicopter has just completed its...
aviationtoday.com
XTAR and Leidos Team Up to Test AISR
[Avionics Today 08-21-2014] XTAR, LLC signed an agreement with Leidos,...
aviationtoday.com
Unmanned Air, Ground Vehicles Aid Army Mission
An autonomous resupply, reconnaissance, surveillance and target-acquisition demonstration was been...
aviationtoday.com
Lockheed Martin Readies F-16V for Taiwan Launch
A U.S. Air Force F16 in Flight. Photo: Wikipedia [Avionics...
aviationtoday.com
Pilatus Provides a Better View with New EVS
Pilatus PC-12 EVS Sensor. Photo: Pilatus [Avionics Today 08-19-2014] Pilatus...
aviationtoday.com
Manned and Unmanned Systems: Expanding Integration
 X-47B UAS taking off from a carrier in the Eastern...
aviationtoday.com
FAA Statement- New Notice to Airmen Issued for Syria
U.S. operators are restricted from flying in the Damascus Flight...
faa.gov
Northrop Grumman Wins UH-60L to UH-60V Upgrade
Redstone Defence Systems has selected Northrop Grumman to supply its...
aviationtoday.com
Polish Kruk Attack Helicopter Competition Gains Bidders
Tension stemming from the conflict in Ukraine is cited as...
aviationtoday.com
Global Hawk Completes 100th Operational Mission
Northrop Grumman RQ-4 Global Hawk. Photo: Wikipedia [Avionics Today 08-18-2014]...
aviationtoday.com
Airbus A350 XWB completes its Route Proving World Tour
On track towards Type Certification in Q3 this year Share...
airbus.com
Airbus choses AIDC as new supplier for best-selling A320 Family
Taiwanese corporation to supply composite panels for aft belly fairing...
airbus.com
Elbit Systems to Supply Latin American Country with AES
Photo: Wikipedia [Avionics Today 08-14-2014] Elbit Systems, an Israel-based defense...
aviationtoday.com
US Air Force Awards Northrop Grumman $300 Million Contract
Northrop Grumman Offices. Photo: Northrop Grumman [Avionics Today 08-14-2014] United...
aviationtoday.com
Dover Air Force Contracts Versar for Runway Repair
Stock Photo [Avionics Today 8-14-2014] Dover Air Force Base awarded...
aviationtoday.com
Boeing’s Surveillance Aircraft Cleared for International Sales
A Boeing Maritime Surveillance Plane. Photo: Boeing [Avionics Today 08-13-2014]...
aviationtoday.com
FAA Solicits Center of Excellence for UAS Applicants
The Federal Aviation Administration (FAA) today released its final solicitation...
faa.gov
NAVAIR Looks to Advance 3D Printers, Warfighters
A plastic part, printed from a 3-D printer at Naval...
aviationtoday.com
FAA Statement-New Notice to Airmen Issued for Iraq
US operators are restricted from flying over Iraq due to...
faa.gov


Privacy Statement - Copyright Information. - Contact Us

comments powered by Disqus

Integrated Publishing, Inc.
9438 US Hwy 19N #311 Port Richey, FL 34668

Phone For Parts Inquiries: (727) 755-3260
Google +