BT-COVER-BLK.qxd 7/11/05 10:08 AM Page 2
READ OWNER’S MANUAL BEFORE USING.
Rules of Safe Marker Handling
1.Treat every marker as if it were loaded.
2.Never look down the barrel of a paintball marker.
3.Keep your finger off the trigger until ready to shoot.
4.Never point the marker at anything you don’t wish to shoot.
5.Keep the marker on “safe” until ready to shoot.
6.Keep the barrel blocking device in/ on the marker’s muzzle when not shooting.
7.Always remove paintballs and propellant source before disassembly.
8.After removing propellant source, point marker in safe direction and discharge until marker is degassed.
9.Store the marker unloaded and degassed in a secure place.
10.Follow warnings listed on propellant source for handling and storage.
11.Do not shoot at fragile objects such as windows.
12.Every person within range must wear eye, face and ear protection designed specifically to stop paintballs and meeting ASTM standard F1776.
13.Always measure your marker’s velocity before playing paintball and never shoot at velocities in excess of 91.44 meters (300 feet per second).
BT Paintball Designs, Inc.
Model BT-4TM
No part of this document may be copied or reproduced without the prior written consent of BT Paintball Designs, Inc.
Congratulations on your selection of the BT-4TM paintball marker. The BT-4TM is made to provide you with many years of reliable performance. BT Paintball Designs, Inc. is honored that you have chosen the BT-4TM as your marker of choice and hope you enjoy using this high quality product.
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BT-4TM Specifications |
Model................................................................................................................. |
BT-4 |
Caliber................................................................................................................. |
.68 |
Action.................................................................................................... |
Semi-Automatic |
Powered............................................................. |
CO2 or Compressed Air (HP Output) |
Cycle Rate............................................................................................................. |
13BPS |
Main Body Material............................................................................................ |
Aluminum |
Accuracy Range....................................................................................................... |
150+ft |
The BT-4TM comes with a removable barrel system. This feature allows the user to select a barrel that is most suitable for the playing conditions. Standard barrels are mirror-honed with a step-bore and porting and stock length is 8 inches.
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NOTE: Eye protective devices designed specifically for paintball use must be worn by the operator and anyone within range.
Read this entire manual before loading, attaching a propellant source or in any way attempting to operate the BT-4TM.
Barrel Installation
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Make sure marker is degassed, hopper |
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removed, no paintballs in the feed port or |
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breech and the safety is set to “safe”. |
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While pointing marker in a safe direction, place |
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the threaded end of the barrel into the front |
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opening of the marker body. |
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3. Turn the barrel clockwise until it stops (do not |
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over tighten). |
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4. Adjust the barrel accessories if necessary. |
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Install a barrel blocking device. This can be a |
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barrel plug or other such device that prevents |
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the accidental discharge of a paintball. |
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SAFETY OFF |
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Air Cylinder Installation
1.Make sure the barrel blocking device is properly installed and the marker safety is set to “safe” (red marking on safety will NOT be
visible).
2. While pointing the marker in a safe direction, cock the marker by pulling the cocking knob located on the left side of the marker back until it clicks and stops.
3.Release the cocking knob.
4.The marker is now cocked.
5.Locate the air cylinder adapter. The BT-4™ cylinder adapter is located at the base of the pistol grip.
6.Position the BT-4™ so that the air cylinder adapter is pointed upwards while keeping the muzzle of the marker pointed in a safe direction.
7.Insert the threaded cylinder valve end into the adapter.
8.Without pushing the cylinder, twist the cylinder clockwise and allow the threads to draw the cylinder into the marker until it stops. Your marker is now charged.
Air Cylinder Installation |
Loader Installation |
Velocity Adjustment
1.Always check the velocity of the marker prior to playing paintball. Different playing fields may have different maximum velocity limits. At no time should you shoot at velocities above 300 feet per second.
2.Put on an eye protective device designed specifically for paintball and make sure that anyone within range of the BT-4™ does the same.
3.While pointing the marker in a safe direction, remove the barrel blocking device.
4.Point the BT-4™ over a chronograph that will measure the velocity of the paintballs discharged by the marker.
5.Set the trigger safety to “fire” (red mark will show).
6.Pull the trigger and check the reading on the chronograph.
7.Locate the velocity adjuster screw on the center of BT-4™, under the name plate.
8.Using a 5/32" hex key, turn the screw inward or clockwise to reduce the velocity, and outward or counterclockwise to increase the velocity of the paintballs discharged from the marker.
1.To install loader check the Slide Away™ Elbow and loader to make sure they are free from debris and obstructions.
2.Position Slide Away™ Elbow
3.Using a 3/16" hex wrench, loosen the clamping screw on the Slide Away™ Elbow to allow the loader to slide into the top of the elbow.
4.Press the loader into the opening of the Slide Away™ Elbow until it stops.
5.Align the loader so that the lid is pointing to the rear and the loader is parallel with the marker.
6.Using a 3/16” hex wrench, tighten the clamping screw on the Slide Away Elbow™ until snug. DO NOT over-tighten.
Loading Paintballs
1.Put on an eye protective device designed specifically for paintball and make sure that anyone within range of the marker does the same.
2.Load quality .68 caliber paintballs (leave some room for paintballs to move about, inside loader).
DO NOT REMOVE THE VELOCITY
ADJUSTMENT SCREW.
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