virginia abraives VA-CD3, Operating Manual

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9
Environmental Protection Guarantee
Environment Protection
Waste electrical products should not be disposed of with household waste. Please recycle
where facilities exist. Check with your local Authority or retailer for recycling advice.
6. Solution to the Problems During Using
Problems Possible Reasons Solution
Motor doesn’t
run when
connected to
power supply 1. Power supply disconnected
2. Switch breaker is tripped
3. Brush is not contacting the
commutator
4. The winding of stator & rotor circuit
open
1. Check and connect power supply
2. Check and replace switch
3. Replace electric brushes
4. Check or replace stator & rotor open
circuit
Heavy sparks
and ring
sparks occur
on
commutator
of motor 1. Rotor winding has short circuit or
open circuit
2. Brush spring positioned improperly
or making poor contact
3. Worn commutator
1. Repair or replace rotor
2. Adjust the spring pressure
3. Replace with new commutator or
motor
Drill vibrates 1. The core rig base is loose
2. The gap between elevating body and
square rack has slipped.
3. Elevating body and connecting bolts
are loose
1. Reassemble and tighten the frame
2. Adjust the gap
3. Check and tighten bolts
Drilling
progress is
slow 1. Drill bit worn
2. Chips or aggregate is loose in gap
3. Drill vibrates
4. Adjust the clutch 1. Replace core bit
2. Stop the drill, remove the foreign
materials from gap
3. Adjust and tighten connecting bolt
4. Tighten nuts on the clutch
7. Standard Accessories
Electric brush 2 pieces
8. Main Part List and the Breakdown Drawing
The parts list of 433-20000 Virginia Abrasives Core Drill
2
b. Use personal protective equipment. Always wear eye protection. Protective
equipment such as dust mask, non-skid safety shoes, hard hat, and hearing
protection will reduce the likelihood of personal injuries.
c. Ensure that the switch is in the off-position before connecting to the power source to
prevent unintentional starting.
d. Disconnect the tool from the power source before moving adjusting or carrying the
tool.
e. Remove any adjusting tools before turning the power tool on.
f. Never operate power tools with the guard removed.
g. Do not overreach. Keep proper footing and balance at all times. This enables better
control of the power tool under varying operating conditions.
h. Dress properly. Do not wear loose clothing or jewelry. Keep hair, clothing, and
gloves away from moving parts.
i. Use of dust collection equipment can reduce dust-related hazards. Use appropriate
personal protective equipment designed for the conditions and materials being used.
4) Power tool use and care
a. Do not force the power tool. Use the correct power tool for your application.
b. Do not use the power tool if the switch malfunctions. Any power tool that cannot be
controlled with the switch is dangerous and must be repaired.
c. Disconnect the plug from the power source before making any adjustments,
changing accessories, or storing power tools.
d. Store idle power tools out of the reach of children. Do not allow persons unfamiliar
with the power tool or these instructions to operate the power tool. Power tools are
dangerous in the hands of untrained users.
e. Properly maintain your power tools. Check for misalignment or binding of moving
parts, broken or damaged parts, and any other condition that may affect the power
tool’s operation. If damaged, have the power tool repaired before use.
f. Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp
cutting edges are less likely to bind and are easier to control. Never use a damaged
blade. Discard damaged blades immediately.
g. Always use power tools and accessories in accordance with manufacturer’s
instructions. Take into account, the working conditions and the proper application.
Use of power tools for unapproved applications could result in injury or property
damage.