CHAPTER 2
OPERATION
2-1 INTRODUCTION.
The Pakhammer is a portable pneumatic tool,
utilized by a single operator and designed for
forcible entry (piercing, cutting, and breaking)
during firefighting and rescue operations. It may
be activated from any air source (air compressor
or air cylinder) capable of supplying 40 to 200 psi
(2.8 bar to 13.8 bar).
2-2 PREPARATION FOR USE.
a. Remove the Pakhammer from its
storage container. If the oiler and hose
assembly is not connected, firmly attach
the oiler and hose assembly to the
Pakhammer handle. Do not carry the
Pakhammer by the oiler hose. Verify the
lubricant level in the oiler is proper (one-
half full). If necessary, fill the oiler half-
full with Marvel ®, Air Tool Oil, Turtle
Wax, P.O. Box 247, Westmont, IL
60559-0247 (Paratech PN 550291).
b. Select the proper tool bit for the specific
work to be accomplished. The tool bits
are 0.475” (12.07 mm) shank diameter
made from heat treated S-7 tool steel.
Pull back the tool retainer release ring,
insert the tool bit fully into the retainer
body and the release the release ring.
The release ring should be in the fully
forward position.
c. The Pakhammer is designed to operate
on air pressures between 40 and 200 psi
(2.8 to 13.8 bar). For maximum
efficiency, use only the operating
pressure to accomplish the task.
Excessive pressure can actually hinder
the actual operation and result in
excessive operator fatigue. Refer to
table 2-1 for starting point pressures and
recommended tool bits. Adjust the air
supply pressure regulator for the desired
pressure. Do not exceed the maximum
operating pressure of 200 psi (13.8 bar).
Connect the air supply to the oiler and
hose assembly and turn on the air
supply line valve to apply air pressure to
the Pakhammer.
2-3 CONTROLS AND INDICATORS.
The only control on the Pakhammer is a trigger
lever located in the pistol grip handle. Pull the
spring loaded trigger lever to start operation.
Release the trigger lever to stop operation.
2-4 APPLICATIONS (Refer to Figure 2-1).
a. General air impact hammer – use in
rescue or industry.
b. Rescue/forcible entry – breaks doors,
locks, padlocks, hasps.
c. Extrication – from automobiles, trucks,
buses, transportation accidents.
d. Rescue from entrapped environments –
earthquakes, collapse.
e. Crash rescue from aircraft – cut skins,
spars, canopies.
f. Crash firefighting – piercing application
for dispensing extinguishing agents.
g.
Damage control – access to
compartments through watertight doors,
heavy sheet metal.
h. Breaks and punches holes – concrete,
asphalt.
2-5 NORMAL OPERATING PROCEDURE.
Never point the Pakhammer toward yourself or
other personnel. Serious injury or possible death
could result.
Do not “trigger” (operate) the Pakhammer unless
the tool bit is held
firmly
against the work
surface as shown in the depictions of Figure 2-1.
Damage to the Pakhammer will result.
a. With the tool bit installed, hold the
Pakhammer
firmly
against the work
surface as shown in the depictions of
Figure 2-1.
b. Pull the trigger lever to operate the
Pakhammer. If “recoil” (Pakhammer
backs off work surface) is experienced,
reduce the operating pressure until the
Pakhammer can be held firmly against
the work surface.
2-1
WARNING
