jobmate 248919, Manual

Page: 16 / 21

Problems Corrective Action
The saw
motor fails
to start
•
Check that you installed the extension cord
properly into the pole saw power cord receptacle
and that you plugged the extension cord into a
live 120 V outlet.
•
Make sure that you fully depress and hold the
safety lock button before squeezing the ON/OFF
trigger switch.
The saw
runs, but
the chain
speed is
low
•
The chain is too tight; re-tension.
Bar and
chain
running
hot and
smoking
•
The chain tension is too tight; re-tension.
•
The chain oil tank is empty; refill.
•
The lubrication holes are plugged; clean them out.
The saw
motor
runs, but
the chain
is not
turning
•
The chain tension is too tight; re-tension.
•
The guide bar or chain is damaged; inspect
and replace the damaged part.
Fig. 27 Fig. 28
< 0.5 mm
Cutting edge
Inspection tool
Depth
limiter
tooth
Troubleshooting
Troubleshooting Tips
Most difficulties are easy to fix. Consult the troubleshooting
table for common problems and their solutions.
Guide Bar Maintenance
Depth limiter tooth
.
WARNING!
Always unplug the power cord before
performing any adjustments, maintenance, or repairs to your
pole chain saw.
When the guide bar shows signs of wear, turn it over on the
saw to distribute the wear for maximum bar life. Feathering or
burring of the bar rails is a normal process of bar wear. You
should smooth such faults with a file as soon as they occur.
Replace a bar with any of the following faults:
• wear inside the bar rails permitting the chain to
lay over sideways
• bent guide bar
• cracked or broken rails
• spread rails
Turn the saw over, check the underside of the guide bar, and
make sure that the lubrication holes and chain groove are free
from impurities.
Chain Sprocket
Regularly check the condition of the sprocket and replace it
when wear exceeds 0.5 mm (Fig. 28).
Do not mount a new chain with a worn sprocket or vice-versa.
Troubleshooting Table
15