John Deere ET-3409-J - Manual (Page 25)

Table Saw Operator's Manual 25
Maintenance and Inspection
WARNING: TO AVOID AN ACCIDENT OR PERSONAL INJURY, ALWAYS CONFIRM THAT THE SWITCH
IS TURNED OFF AND THAT THE POWER PLUG HAS BEEN DISCONNECTED FROM THE
RECEPTACLE BEFORE PERFORMING ANY MAINTENANCE OR INSPECTION OF THIS TOOL.
1. Inspecting the Saw Blade:
Always replace the saw blade immediately upon the first sign of deterioration or damage. A damaged saw
blade can cause personal injury and a worn saw blade can cause ineffective operation and possible overload
to the motor.
CAUTION: NEVER USE A DULL SAW BLADE. WHEN A SAW BLADE IS DULL, ITS RESISTANCE TO THE
HAND PRESSURE APPLIED BY THE TOOL HANDLE TENDS TO INCREASE, MAKING IT UNSAFE
TO OPERATE THE POWER TOOL.
2. Inspecting the Carbon Brushes (Fig. 34 and Fig. 35):
The carbon brushes in the motor are expendable parts. If the carbon
brushes become excessively worn, motor trouble might occur.
Therefore, inspect the carbon brushes periodically and replace them.
Check the carbon brushes after the first 50 hours of use for a new
machine or after a new set of carbon bushes have been installed.
After the first check, examine them after each about 10 hours of use
until such time that replacement is necessary. When the carbon on
either brush is worn to 3/16" (5 mm) in length or if either spring or
shunt wire is burned or damaged in any way, replace both carbon
brushes (Fig. 34). If the carbon brushes are found serviceable after
removing, reinstall them in the same position as before removed.
Also, keep the carbon brushes clean so that they will slide smoothly
within the brush holders. The carbon brushes can easily be removed
after removal of the brash caps (Fig. 35) with a flat screwdriver.
3. Inspecting the Mounting Screws:
Regularly inspect each component of the power tool for looseness.
Retighten mounting screws on any loose part.
WARNING: TO PREVENT PERSONAL INJURY, NEVER OPERATE
THE POWER TOOL IF ANY COMPONENTS ARE LOOSE.
4. Inspecting the Saw Blade Guard for Proper Operation:
Before each use of the tool, test the saw blade guard (Fig. 1) to
assure that they are in good condition and that they move smoothly.
Never use the tool unless the saw blade guard operates properly and
unless they are in good mechanical condition. Ensure the anti-
kickback pawls are always sharp so they dig into the workpiece to
help prevent kickbacks. If any damage has occurred, repair it
promptly.
5. Frequently Clean the Saw Blade Guard:
Wipe off saw dust attached to the inside of the see-through saw blade
guard using a soft cloth. Do not use solvent (gasoline, thinner, etc.),
solvents will damage plastic parts.
(Fig. 35)
MAINTENANCE AND INSPECTION:
(Fig. 34)