-8-
TRIP OPERATION MODE
Warning:Alwaysdisconnect air supply before making adjustments as accidental actuation may occur,
possiblycausing injury.
The BT1855and SX1838 feature a selectable trigger system that allows the user to choose between
thefollowing modes of operation:
1.Contact TripOperation 2.Sequential Trip Operation

1.CONTACTTRIP:

Thecommon operation procedure on “Contact Trip” tools is for the operator to contact the work surface to
actuatethe trip mechanism while keeping the trigger pulled, thus driving a fastener each time the work
surfaceis contacted. This will allow rapid fastener placement on many jobs. All pneumatic tools are subject
torecoil when driving fasteners. The tool may bounce, releasing the trip, and if unintentionally allowed to re-
contactthe work surface with the trigger still actuated (finger still holding the trigger pulled) an unwanted
secondfastener will be driven.

2. SEQUENTIAL TRIP:

TheSequential Trip requires the operator to hold the tool against the work before pulling the trigger. This
makesaccurate fastener placement easier.The Sequential Trip allows exact fastener location without the
possibilityif driving a second fastener on recoil as described under “Contact Trip”. The Sequential Trip Tool
hasa positive advantage because it will not accidentally drive a fastener if the tool is contacted against the
worksurface - or anything else - while the operator is holding the trigger pulled.

SELECTINGTHE TRIP MODE:

Toensure safety, the user must lock the trigger (as described above) before changing the trigger system. To
changethe trip mode, rotate the mode switch in the counterclockwise direction. The mode switch will lock
automaticallywhen the indicating arrow is pointing down to the 3 nail icon stamped into the tool frame
(ContactTrip Mode) or to a single nail icon stamped in the tool frame( Sequential Trip Mode). Unlock the
triggerto resume tool operation.
ContactTrip Mode SequentialTrip Mode
(tripmode selector switch pointing down) (tripmode selector switch pointing up)
TRIGGER LOCKOUT CONTROL
Thetrigger lockout control feature on BOSTITCH pneumatic tools provides
atriggerlock feature for added safety control. Push the lockout control
buttonin or out to activate or lock the tool trigger.
TriggerLockout Control Button