Maintenance - Bosch JS120N Operating/Safety Instructions Manual

CIRCLE-CUTTING TIPS:
• Place small wedges (W) in the cut as
shown in Fig. 14, to keep the inner
circle from spreading when near the
end of the cut.
• Use a thick jig saw blade, such as the
Bosh T101TP or T144DP whenever
possible.
• Make sure that the jig saw's orbital
setting is at 0 (zero)
• Cut slowly so the blade will stay
straight in the cut.
Service
INSIDE. Preventive maintenance
performed by un au thorized personnel
may result in misplacing of internal
wires and components which could
cause serious hazard. We recom mend
that all tool service be performed by a
Bosch Factory Service Center or
Authorized Bosch Service Station.
SERVICE MEN: Disconnect tool and/or
charger from power source before
servicing.
Batteries
Be alert for battery packs that are
nearing their end of life. If you notice
decreased
significantly shorter running time
between charges then it is time to
replace the battery pack. Failure to do
so can cause the tool to operate
improperly or damage the charger.
Operating Instructions
To avoid accidents, always disconnect the battery pack from tool
before servicing or cleaning.
NO
SERVICEABLE PARTS
tool performance

Maintenance

Tool Lubrication
Your Bosch tool has been properly
USER
lubricated and is ready for use.
D.C. Motors
The motor in your tool has been
engineered
dependable service. To maintain peak
efficiency of the motor, we recommend
it be examined every six months. Only a
genuine Bosch replacement motor
specially designed for your tool should
be used.
Bearings
Bearings which become noisy (due to
heavy load or very abrasive material
cutting) should be replaced at once to
or
avoid overheating and motor failure.
-16-
W
for many hours
Fig. 14
W
of