CHAPTER 1
GENERAL INFORMATION AND SAFETY PRECAUTIONS
1-1 SAFETY PRECAUTIONS.
Refer to the Safety Summary preceding Chapter
1, General Information and Safety Precautions,
for safety precautions necessary for the
protection of personnel and equipment.
1-2 INTRODUCTION.
This technical manual provides instructions for
the operation, maintenance, repair, and parts
support for the Pakhammer manufactured by
Paratech Incorporated, 1025 Lambrecht Road,
Frankfort, Illinois 60423-1648.
1-3 EQUIPMENT DESCRIPTION.
The Pakhammer is a portable, pneumatic impact
tool designed for forcible entry (piercing, cutting,
and breaking) during firefighting and rescue
operations. The Pakhammer is also designed
for medium duty breaking/breaching of masonry
walls digging/tunneling operations. The
Pakhammer employs operating pressures of 40
to 200 psi (pounds per square inch) (2.8 to 13.8
bar) depending upon the material to be broken,
cut or penetrated. Operating air can be obtained
from any air source such as an air compressor
or a SCBA (self-contained breathing apparatus)
air cylinder. Conservation of operating air is
achieved through air utilization only on the power
stroke with virtually no air loss. An integrated
spring retracts the piston on the return stroke.
The 5.214 inch (132.44 mm) stroke provides
very high impact energy for the size and weight
of the Pakhammer. The Pakhammer is designed
to use 0.475” (12.07 mm) shank diameter tools
made from S-7 tool steel.
1-4 RELATIONSHIP OF UNITS.
Refer to figure 1-1 for a pictorial illustration of the
Pakhammer components, the relative size of
each component and the interconnection
between components.
1-5 REFERENCE DATA.
Reference data pertaining to the Pakhammer
are summarized for quick reference in table 1-1.
1-6 EQUIPMENT, ACCESSORIES AND
DOCUMENTS SUPPLIED.
1-6.1 EQUIPMENT SUPPLIED. Data pertaining
to the dimensions and weight of the Pakhammer
are presented in table 1-2.
1-6.2 ACCESSORIES. Accessories are
required for operation of the Pakhammer. Refer
to Chapter 2 for their use and table 7-3 for their
identification.
1-6.3 DOCUMENTS SUPPLIED. No documents
other than this publication are required as
supporting literature for the Pakhammer.
Table 1-1. Reference Data
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Manufacturer………...….Paratech, Incorporated
1025 Lambrecht Road
Frankfort, IL 60423-1648
CAGE Code………………………...……....30978
Pakhammer
Part Number……………….…………..550500G2
Overall Length (Approx.)……27.00” (685.8 mm)
Overall Width (Approx.)……....7.78” (197.6 mm)
Overall Thickness……………...2.23”(56.64 mm)
Overall Weight……………......11.1 lbs. (5.03 kg)
Operating Conditions
Power Output:
158 ft-lbs @ 50 psi to 876 ft-lbs @ 200 psi (214
N·m @ 3.44 bar to 1188 N·m @ 13.8 bar)
Operating Pressure:
40 to 200 psi (2.8 to 13.8 bar)
Air Consumption @ 40 psi
8.5 scfm (241 l/m)
Air Consumption (@ 200 psi):
19 scfm (538 l/m)
Blows/Minute (Approximate)…..……1000-1100
Piston Stroke……….………5.124” (132.44 mm)
Cylinder Bore………….…………1.188” (30 mm)
Hose Size………...………………..….3/8” (9mm)
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1-1
