Manual
CLEANING THE BREAK BEAM 
SENSOR SYSTEM 
Undo the retaining screw for the break beam sensor 
cover on the left hand side of  the Etek4 using a 5/64" 
(2mm) hex key 
(SEE FIGURE 16A).
Remove the sensor cover to expose the back of the 
break beam sensor unit 
(SEE FIGURE 16B). Using 
a dry cotton bud, carefully remove any debris, paint or 
moisture from the back of  the sensor unit and from 
inside the sensor cover.
Lift the BBSS free from the Etek4 body and using 
another dry cotton bud, remove any grease or debris 
build-up from the front of  the sensor unit 
(SEE 
FIGURE 16C)
.
DE-GAS YOUR MARKER, DISCHARGING ANY 
STORED GAS IN A SAFE DIRECTION, AND REMOVE 
THE BARREL, LOADER, AIR SYSTEM AND ANY 
PAINTBALLS TO MAKE THE MARKER EASIER AND 
SAFER TO WORK ON.
WARNING
F IG 16 A
F IG 16 b
F IG 16 C
54.
mAINTENANCE










