Manual
ADjUSTING THE VELOCITY
When using your Etek4, you may wish to change the 
velocity at which your Etek4 is firing. This is done by 
inserting a 1/8" hex key into the adjuster screw at the 
bottom of  your Etek4 inline regulator and adjusting 
it accordingly 
(SEE FIGURE 12A). By turning this 
adjuster screw clockwise you decrease the output 
pressure of  the inline regulator and consequently 
the velocity, by turning the adjuster screw counter 
clockwise you increase the output pressure of  the 
inline regulator and consequently the velocity
1
. On 
the bottom of  the inline regulator there are engraved 
arrows to illustrate which direction to turn the hex key 
to make the relevant adjustment.
ADjUSTING THE LPR 
PRESSURE
When using your Etek4, you may wish to change the 
output pressure of  your low pressure regulator (LPR). 
This is easily done by inserting a 1/8" inch hex key 
into the adjuster screw at the front and adjusting 
it accordingly 
(SEE FIGURE 12B).  However we 
recommend that the LPR screw be left set 2 turns in 
(clockwise) from the screw being flush with the front 
of  the LPR cap.
By turning the adjuster screw clockwise, you decrease 
the output pressure of  your LPR and consequently 
reduce the pressure driving your rammer back and 
forth. By turning the adjuster screw counter clockwise, 
you increase the output pressure of  your LPR and 
consequently increase the pressure driving your 
rammer back and forth.
2
1
After each adjustment fire two clearing shots to gain an accurate 
velocity reading. Never exceed 300fps. 
2
Turning the adjuster screw in too far will prevent the Etek4 from 
firing.
F IG 12 A
F IG 12b
26.
USING THE ETEK4










