Maintenance - Surtek DG752A Manual De Usuario

ROOT CUTTING
Root cutting means eliminating all ground
vegetation. To do this, the head should be
tilted at an angle of approximately 30 degrees
to the right.
If you adjust the handle you will have a better
control during this operation. Do not attempt
to proceed if there is the slightest chance of
hurting other people or damage properties.
WARNING: DO NOT SWEEP WITH THE GAS
TRIMMER. Sweeping means to use the nylon
head to remove debris, etc.
The gas trimmer is a powerful tool and can
throw small stones or other similar waste to
15 meters (50 feet) or more, causing injury and
damage to surrounding property such as cars,
houses and windows.

MAINTENANCE

WARNING: Use only original manufacturer's
replacement parts, accessories and attach-
ments. Failure to do so can cause possible
injury, poor performance and may void your
warranty.
• You may make adjustments and repairs de-
scribed here. For other repairs, have the trim-
mer serviced by an authorized service dealer.
• Consequences of improper maintenance may
include excess carbon deposits resulting in loss
of performance and discharge of black oily
residue dripping from the muffler.
• Make sure all guards, straps, deflectors and
handles are properly and securely attached to
avoid the risk of personal injury.
REPLACING THE NYLON THREAD
1. Hold the string head
and unscrew the spool
retainer.
Turn counterclock-
wise.
2. Remove the empty spool from the string
head. Keep the spring attached to the spool.
3. Remove the last of nylon threads.
4. Cut and hook the nylon inside the spool,
make sure the two strings are captured in the
slots opposite each other on the spool. Make
sure the ends of each string is extended ap-
proximately 152 mm (6 in.) beyond each slot.
14
Retainer
5. Thread the strings
into the eyelets in the
string head. Carefully
push the spool into
the string head (gen-
tly pull the strings to
the outside if neces-
sary).
When the spool is positioned in the string
head, grasp the strings and pull sharply to re-
lease them from the slots in the spool.
6. Push down and turn the spool counterclock-
wise until it no longer turns. Hold the spool
down and rotate clockwise a small amount.
Release the spool. The spool should be locked
down in the string head. If not, hold down and
rotate until locked.
7. Make sure the string head and the spool re-
tainer are installed on the drive shaft by turn-
ing the retainer clockwise to tighten.
8. Pull the strings again to rotate the spool into
cutting position. Push the spool retainer down
while pulling on string(s) to manually advance
the string and to check for proper assembly of
the string head.
CLEANING THE EXHAUST PORT AND MUFFLER
Depending on the type of fuel used, the type
and amount of oil used, and/or your operat-
ing conditions, the exhaust port and muffler
may become blocked with carbon deposits. If
you notice a power loss with your gas powered
tool, a qualified service technician will need
to remove these deposits to restore perfor-
mance.
SPARK PLUG
The spark plug must be cleaned or replaced
every 25 hours or yearly to ensure proper per-
formance of your product.
Cleaning Instructions:
• Remove the spark arrestor from the muffler.
1. Spray the spark arrestor with a quality car-
bon cleaner.
2. Gently clean using a wire brush.
3. Install the new or cleaned spark arrestor and
reassemble completely before use.
REPLACING AND CLEANING AIR FILTER
For proper performance and long life, keep air
filter clean.