14
Brush Inspection and Replacement
CAUTION:
Before
Inspecting
Brushes,
Dis-connected The Machine From The Power
Source.
Brush life varies. It depends on the load on the motor.
Check the brushes after a new set of brushes has been
installed.
After the first check, examine them after about 10 hours of
use until such time that replacement is necessary.
The brush holder cap (A) as shown Fig.21 is located on the
motor housing opposite each other. Illustrates one of the
brushes removed for inspection. When the carbon on
either brush is worn to 6.35mm length of it either spring or
shunt wire is burned or damaged in any way, replace both
brushes. If the brushes are found serviceable after
removing, reinstall them in the same position as removed
as shown Fig.22.
Maintenance and Lubrication
Maintenance
DANGER:
Never put injury from lubricants on the
blade while it is spinning.
WARNING:
To avoid injury from unexpected
starting or electrical shock, unplug the power cord
before working on the saw.
Keep the tool clean. Remove accumulated dust from
working parts.
Make sure that the tool operates properly, Periodically
check screws and bolts for tightness.
Feed oil at the oiling points once a month for extending
machine service life (machine oil is suitable for the saw).
Oiling point
。
Rotary part of shaft
。
Rotary part of vise
。
Slide way of vise
Replacing Carbon Brushes
The carbon brushes furnished will last approximately
50hours of running time or 10,000 on/off cycles. Replace
both carbon brushes when either has less than 6.35mm
length of carbon remaining. To inspect or replace brushes,
first unplug the saw. Than remove the black plastic cap on
the side of the motor (caution, this cap is spring loaded by
the brush assembly). Then pull out the brush. Repeat for
the other side. To reassemble reverse the procedure. The
ears on the metal end of the brush assemble go in the
same hole the carbon part fits into. Tighten the cap snugly
but do not over tighten.
NOTE:
To reinstall the same brushes, first make sure the
brushes go back in the way they came out. Otherwise a
break-in period will occur that will reduce motor
performance and in crease brush wear.
Lubrication
All the motor bearings in this tool are lubricated with a
sufficient amount of high grade lubricant for the life of the
unit under normal operation condition, therefore no further
lubrication is required (see below).
Infrequent Lubrication as Required:
Chop pivot: Light machine oil or aerosol will penetrate
from ends and junction points. Qualified service technician
can remove pivot unstop to relieve spring tension in order
to drive shaft about 19mm right. Exposed surfaces are
lubricated with automotive type oil.
Central pivot of guard: Use light household oil (sewing
machine oil) on metal-to-metal guard contact areas as
required for smooth, quiet operation. Avoid excess oil, to
which cutting debris will cling and fire hazard from sparks
could be caused.
A
Fig.22
Fig.21
Содержание EDC.135
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