TRAKFAST REPAIR MANUAL
65
Rev. 09/07
PRE-COMBUSTION/COMBUSTION STAGE OF OPERATION
Symptom Possible Problems Service
Work Contact Element (WCE) doesn’t
go down all the way – tool does not
operate.
WCE is bent or build-up of dirt in
track restricts operation.
Remove and inspect WCE. Replace
WCE as required.
Cylinder Head O-Ring is dry or not
seated in groove properly.
Lubricate Cylinder Head O-Ring with
TrakFast Lubricating Oil or replace
O-Ring if O-Ring does not seat in
groove.
Upper Sleeve O-Ring is dry or not
seated in groove properly.
Lubricate O-Ring with TrakFast Lubri-
cating Oil or replace O-Ring if O-Riing
does not seat in groove.
Tool won’t operate – Fan runs, LED is
constant green. No spark apparent.
Battery Cell charge is marginal or
contacts and terminals are dirty.
Recharge Battery Cell and clean
contacts.
Spark Plug wire is not connected
properly.
Install spark plug wire.
Spark Plug is dirty or damaged. Clean or replace Spark Plug.
Trigger Switch is improperly installed
or inoperative.
Check switch for proper operation.
Repair or replace as necessary. Check
connection at MSU Spark Unit.
Spark Unit is inoperative. Check and replace MSU Spark Unit as
required.
Tool won’t operate. Fan does not run,
LED blinks green.
Spark Unit is inoperative. Check Spark Unit for spark. Replace
if bad.
Head Switch is inoperative. Check Head Switch and connections.
Replace as necessary.
Cage is deformed or bent. Check Cage for bent arms or de-
formed base. Repair of replace as
necessary.
Grommet in Upper Probe is damaged
or missing.
Check and replace Upper Probe as
necessary.
Tool won’t operate – Fan runs, LED is
constant green, audible spark appar-
ent but not visible at Spark Plug.
Spark Plug wire shorting to ground at
Cylinder Head Casting.
Make sure Plug wires correctly seated
into Spark Plug. Replace Spark Plug
wire as necessary.
Spark Plug is fouled, causing spark to
ground out to Cylinder Head.
Clean Spark Plug gap and Cylinder
Head.
TROUBLESHOOTING GUIDE
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