TRAKFAST REPAIR MANUAL
67
Rev. 09/07
Symptom Possible Problems Service
Tool cycles with a “poof” sound – no
pin is driven.
Piston Rings are damaged or not
seated properly in piston ring
grooves.
Check Piston Rings and service as
required.
Piston Retaining Ring is damaged,
missing, or not seated properly in
groove.
Check Piston Retaining Ring and
serve as required.
Sleeve or Cylinder Head O-Ring is
broken or damaged.
Check Sleeve or Cylinder Head O-
Ring and service as required.
POWER/EXHAUST STAGE OF OPERATION (cont’d)
RETURNING/PURGING STAGE OF OPERATION
TROUBLESHOOTING GUIDE
Symptom Possible Problems Service
Tool drove pin, but Piston Assembly
won’t return to up position.
Build-up of dirt and debris on Driver
Blade in Nose bore.
Clean Piston Assembly and Nose bore
with safety solvent and lubricate with
TrakFast Lubricating Oil.
Piston Rings are dirty, preventing
full contact with sleeve walls, or are
damaged.
Check Piston Rings for free-floating
engagement in Piston grooves, and
clean or replace.
Combustion Chamber O-Rings are
dry, damaged, or swollen, preventing
vacuum seal from being held.
Lubricate or replace O-Rings.
Mid-Check Seal Washer is dirty, bent
or damaged.
Check Seal Washer and clean or
replace.
Mid-Check Wave Washers are dam-
aged (flattened).
Replace Wave Washers.
Debris in Mid-Check area is prevent-
ing proper operation of Mid-Check.
Check Mid-Check area for debris or
Bumper for fragments and clean.
Combustion Chamber won’t drop
when Trigger is released after tool
cycles.
WCE is burred or damaged. Replace Work Contact Element (WCE)
Head O-Ring is dry, damaged or
swollen.
Check Head O-Ring and Lubricate or
replace.
Combustion Chamber O-Rings are
dry, damaged or swollen.
Check Combustion Chamber O-Rings
and lubricate or replace.
Air Dam is pinched between Housing
and casting.
Re-seat Air Dam.
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