Craftsman 138.74500 Operator's Manual page 10

Strings will not feed when
bumping during use as
per instructions:
Grass wraps around drive
shaft housing and string
head.
Motor fails to start when
switch trigger is depressed.
1. Strings have become
stuck together due to heat
or storage time.
2. Not enough string
present in spool.
3. Strings are tangled
on spool
1. Cutting tall grass at
ground level.
1. Power cord is not plugged
in or connection is loose.
2. Household circuit breaker
is tripped.
3. Extension cord may be
faulty.
1. Unplug trimmer. Open spool
cover. Remove spool, unwind line
and then rewind onto spool housing.
2. Unplug trimmer. Open spool
cover. Remove spool and replace
with new line or new spool
assembly as per instructions in
manual.
3. Unplug trimmer. Open spool
cover. Remove spool unwind and
remove tangled line. Rewind line
as per instructions in this manual.
1. Cut tall grass from the top
down to prevent wrapping.
1. Plug in the power cord.
2. Check circuit breaker.
3. Try another extension cord or
connect into another wall
receptacle socket on a different
circuit.