Operating instructions
SERVICING
SERVICING 
12
Field service should be restricted to  
the following: 
qCHECKING THE ENERGY LEVEL  
OF THE BATTERY 
qRECHARGING THE BATTERY 
qCHECKING THE FUEL CELL AND METERING 
VALVE 
qREPLACING THE FUEL CELL 
qCLEANING THE AIR FILTERS 
qCLEARING A JAM 
Attempts to go beyond these procedures could 
result in serious personal injury or damage to the 
GypFast (G2) tool and voiding of the warranty. 
There are certain problems that you may encounter 
when you are using the GypFast (G2) tool that you 
will be able to correct on the work site. The follow-
ing field service procedures are the only service 
procedures you should attempt. Anything else 
that may appear wrong with the GypFast (G2) tool 
should only be diagnosed and repaired by a fully 
trained service technician. If you have any reason 
to believe that your problem is beyond the service 
procedures in this manual, contact your Sales 
Representative immediately. 
DANGER 
Never attempt any maintenance of the GypFast 
(G2) tool without first removing the Fuel Cell and 
Battery. Maintenance should only be started after 
the tool is completely inoperative. 
BATTERY CHECK 
Periodically check on the LED Battery Voltage 
Indicator Light—the LED in the Handle of the 
GypFast (G2) tool. When encountering a problem, 
the first step should always be to make sure the 
Battery has enough energy to operate the tool. 
If the light is red, recharge the Battery, If the light 
is glowing green, indicating that the Battery is 
charged, check the ignition system. 
FUEL CELL CHECK 
Another typical service condition will occur when 
the Fuel Cell becomes empty. A typical symptom 
will be when the GypFast (G2) tool’s Fan operates  
and the LED is green, but the tool does not drive 
fasteners completely. In this case, take the Fuel 
Cell out of the tool, check to see if the Cell still 
contains fuel and that the Metering Valve is  
working. To determine is there is any fuel left in 
the Fuel Cell simply place the Metering Stem 
against a solid object, and gently push about 
three or four times. A small amount of fuel should 
be released each time. Never perform this test 
near an open flame or sparks, while smoking, or 
where the fuel may get into your eyes. If fuel is 
not released with each operation of the Metering 
Valve, there is no more fuel left in the cylinder and 
it must be replaced. Dispose of the empty Fuel 
Cell properly. 
AIR FILTER 
Open the cover by pressing slightly above the  
Red Adapter, and pivoting the cover open. The  
Air Filter simply lift out. 
Tap the filter GENTLY to remove any dust. You 
should check and clean the Air Filter every two 
days. 










