HomeMy WebLinkAbout306.019 - Ramset-Redhead Cobra Tool
TRAINING AND EQUIPMENT MANUAL
RESCUE EQUIPMENT
306.019 RAMSET-REDHEAD COBRA TOOL
EFFECTIVE: NOVEMBER 2008
Current Revision Date: 8/8/19 Next Revision Date: 8/8/24
Author’s Name/Rank: Conor Schwarm, Engineer Review Level: 1
Administrative Support:
Leslie Oulashian,
Management Analyst II
PURPOSE
The purpose of this policy is to provide instructions to Fresno Fire Department (FFD
or Department) members on the care and use of the Ramset-Redhead Cobra Tool.
(See Figure 1.)
APPLICATION
The Ramset-Redhead Cobra Tool is intended for use when fastening lumber to
concrete, concrete block, masonry walls, or steel.
OPERATIONAL POLICY
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Figure 1
Section 306.019
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OPERATIONAL GUIDELINE
1. Safety:
Always wear ear and eye protection when using the Ramset
Cobra.
2. Center Punch Test:
Always check the material being fastened into for hardness
before attempting any fastening operation.
Use a fastener as a center punch, strike with an average
hammer blow, and check the results.
If the fastener point is flattened, the material is too hard for
the Cobra.
If the fastener penetrates the material easily, the material is
too soft.
If the material cracks or shatters, the material is too brittle.
If the fastener makes a small indentation into the material, it
is suitable for fastening. (See Figure 2.)
Figure 2
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3. Fastening Applications:
When fastening to concrete, allow a minimum of 3 inches
between fasteners and from free edge. The concrete
thickness should be three times the intended penetration
length. (See Figure 3.)
It is not recommended to fasten to concrete block or
masonry walls; however, when used, ensure there are a
minimum of 3 inches from the edges.
When fastening to steel, allow 1-1/2 inches between
fasteners and 1/2 inch away from edges.
PROCESS
1. Operating the Cobra Tool:
a. Fully extend the barrel and close the tool to the semi-closed
position. This ensures the piston is in place for the fastener.
(See Figure 4.)
Figure 3
Figure 4 Section 306.019
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b. With your finger off the trigger, place the fastener (point out)
into the muzzle.
c. With the tool pointed in a safe direction, insert a load strip
into the bottom of the handle. Push it in until your finger is in
firm contact with the bottom of the handle. (See Figure 5.)
d. Hold the tool perpendicular to the work surface with both
hands and press firmly to fully depress the tool. Maintain
firm downward pressure and pull the trigger. (See Figure 6.)
Figure 5
Figure 6
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e. After firing, fully open and close the tool to the semi-closed
position to reset the piston.
f. Insert another fastener and the tool is ready for use.
g. To remove a fired strip, pull the strip out of the top of the
gun. (See Figure 5.)
Note: Do not attempt to pull the jammed strip out of the
bottom of the gun. If jammed, remove from service
for repair.
2. Disassembly:
a. Rotate the barrel retention clip off the pawl using a flat-
headed screwdriver. (See Figure 7.)
b. Remove the pawl. (See Figure 8.)
Figure 7
Figure 8 Section 306.019
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c. Slide the front barrel assembly out. (See Figure 9.)
d. Unseat and remove the shear clip by prying it up with a flat
blade, taking care to retain the clip. (See Figure 10.)
e. Separate the front barrel and guide from the rear barrel
assembly.
f. Slide the piston out of the rear barrel assembly and slide the
guide out.
g. The tool is now disassembled and ready for normal cleaning.
(See Figure 11.)
Figure 9
Figure 10
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h. Check the piston tip and ensure it is secure and has a flat
tip. When the piston length is worn through use to 5-5/8
inches long, it must be replaced. (See Figure 12.)
i. Re-assemble the tool in reverse order, making sure the
groove in the front barrel lines up with the rear barrel. Also
remember to align the groove in the tool body with the barrel
assembly. (See Figure 13.)
Figure 13
Figure 11
Figure 12
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INFORMATION
1. Parts of the Ramset Cobra (See Figure 14.):
a. Spall Guard
b. Front Barrel
c. Shear Clip
d. Fastener Guide
e. Piston Assembly
f. Pawl
g. Rear Barrel
h. Trigger
2. Training:
On-line training for the Cobra Ramset fastening tool can be done at
www.ramset-redhead.com. After completion, you will receive a certificate and
your training record will be stored on the website.
DEFINITIONS
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CROSS-REFERENCES
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h
a b,c,d,e,f
Figure 14
g
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