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TRAKFAST REPAIR MANUAL

Rev. 09/07

TOOL OPERATION 

OVERVIEW

Magazine Assembly

The magazine assembly has two functions. Its primary func-

tion is to store and feed fasteners into the nose of the tool. 

Its secondary function is to house the battery and battery 

contact assembly.

Motor Assembly

The motor assembly is made up of components that:

•  Control the piston assembly

•  Control intake of the fuel/air mixture

•  Vent exhaust gases

This assembly generates and controls forces that drive 

the fasteners. It will require the majority of routine service 

and/or repair.

•  Piston Assembly

•  O-Rings

Handle Assembly

The handle assembly contains electrical components, and 

the fan motor and fan. The electrical components provide 

spark for combustion. The fan mixes fuel with air and also 

cools the motor.

Cover and 

Filters

Fuel Cell

Compartment

Battery LED

Indicator Light

(opposite side)

HANDLE ASSEMBLY

MAGAZINE ASSEMBLY

Magazine

Locking Knob

Trigger

Battery Compartment

(opposite side)

Follower Release

Lever

Follower

Lockout Bar

Nose

Motor

Housing

MOTOR ASSEMBLY

Summary of Contents for TRAKFAST

Page 1: ...ses This assembly generates and controls forces that drive the fasteners It will require the majority of routine service and or repair Piston Assembly O Rings Handle Assembly The handle assembly contains electrical components and the fan motor and fan The electrical components provide spark for combustion The fan mixes fuel with air and also cools the motor Cover and Filters Fuel Cell Compartment ...

Page 2: ...t the work surface causes the fuel cell meter ing valve assembly to pivot This meters a precise amount of fuel through the cylinder head and into the combustion chamber cavity K As the combustion chamber is raised fan enable switch L is depressed and the chamber lockout bar is moved out of the way of the cam The fan starts and mixes air with a metered amount of fuel to provide a combustible mixtur...

Page 3: ...r activates the ignition circuit This causes a spark N to jump the gap between the spark element and cylinder head igniting the fuel air mixture in the combustion chamber Pis ton assembly O is forced downward driving the fastener into the work surface TOOL OPERATION ...

Page 4: ...ports P allows exhaust gases to exit The pressure of the exhaust gases against the flat washer compresses the wave washers allowing the gases to flow through the mid check area Q and out of the tool through the exhaust ports in the bot tom of the housing R At the bottom of stroke the piston assembly strikes bumper S ...

Page 5: ...s wave washers T to reseal the combustion chamber Rapid cooling of gases trapped in the combustion chamber U creates vacuum This vacuum is strong enough to lift and hold the pis ton assembly in its starting position As the piston as sembly moves up the sleeve air is drawn in through ports in the housing nose V ...

Page 6: ...d from the work surface and the trigger is re leased This opens the seal between the combustion chamber and cylinder head O Ring W and sleeve O Ring X The fan is now able to circulate fresh air into the combustion chamber cooling the sleeve Y and purging any remaining exhaust gases from the tool through ports Z ...

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