MN903
No. 275P Replaces 275N
LB7008
Instruction Manual For Baldor Grinders
1
MN903
SAFETY NOTICE: WARNING
statements describe conditions that may lead to personnel injury including potentially fatal injuries if
the machine is not properly used and warnings are not properly followed.
Caution
statements describe conditions that may lead to equipment damage.
Electrical shock can cause serious or fatal injury. Only qualified personnel should install, maintain or troubleshoot
this equipment.
WARNING: Do not operate this grinder until you are sure that you are completely familiar with the safe operation of the
grinder, all accessories and safety equipment. Improper use can lead to severe injury. This manual defines proper
use of this equipment. Before using this equipment for any other use, please consult Baldor. Contact Baldor if
you do not understand any procedure or operation concerning this grinder or this manual.
WARNING: Prevent electrical shock hazard and accidental machine operation. Always disconnect grinder from the power
source before servicing, changing accessories (such as wheels, tool rest, spark arrestor, etc.) or before
performing maintenance.
WARNING: Avoid accidental starting. Make sure switch is in “OFF” position before connecting to power source.
WARNING: Be sure the system is properly grounded before applying power. Do not apply power before you ensure that
grounds are connected. Electrical shock can cause serious or fatal injury. Follow the National Electrical Code
(NEC) and local codes for the safe installation of this equipment.
WARNING: Always use safety glasses with side shields (or full face shield) when operating grinder. Do not use ordinary
eyeglasses. Also use face or dust mask if cutting operation is dusty.
WARNING: Unsuitable accessories or attachments added to this machine can create hazards. Baldor accessories
are specifically designed to be used with this grinder. Use accessories or attachments only in the proper
intended manner. Accessories or attachments obtained from another source may cause hazards. Consult the
manufacturer before use.
WARNING: Keep guards in place and in working order. Guards are design to prevent injury. Never operate this equipment if a
guard is damaged, missing or improperly installed.
WARNING: Remove adjusting keys and wrenches from this product after use. Check to see that keys and adjusting
wrenches are removed from grinder before turning it on. Projectiles can cause severe injury to yourself or others.
WARNING: Keep work area clean and well lighted. Clutter and poor lighting invites accidents.
WARNING: Don’t use in dangerous environment. Don’t use grinders in damp or wet locations, or expose them to rain.
Electrical shock can cause serious or fatal injury. Follow the National Electrical Code (NEC) and local codes for
the safe installation of this equipment.
WARNING: Do not wear loose clothing, neckties, rings, bracelets, or other jewelry to get caught in moving parts. Nonslip
footwear is recommended. Wear protective hair covering to contain long hair.
WARNING: Don’t over reach. Keep proper footing and balance at all times. A rotating wheel or belt can catch an article of
clothing and cause personnel injury.
WARNING: Secure work. Use clamps to secure the work piece when practical. It’s safer than using your hand and it keeps
hands away from wheel.
WARNING: When starting a grinder for the first time, or after installing a replacement grinding wheel, it is most important
that the operator stand aside for at least one minute of rotation at full speed. This is the correct practice since
grinding wheels can disintegrate if they have received damage during shipping or handling.
WARNING: Always have the grinder switch in the “OFF” position when changing the position of the pivot arm. Do not attempt
to change the pivot arm position while the belt is moving as this will create a hazardous situation for the operator.
WARNING: Never install a wheel that is damaged, such as a chip or crack on any surface. A damaged wheel can disintegrate
while rotating at a high RPM or when work is placed against the wheel. This can severely harm the operator or
others in the area.
WARNING: Check damaged parts. Before further use of the grinder, a guard or other part that is damaged should be
carefully checked to assure that it will operate properly and perform its intended function. Check for alignment of
moving parts, binding of moving parts, breakage of parts, mounting, and any other conditions that may affect its
operation. A guard or other part that is damaged should be properly repaired or replaced.
WARNING: Use proper extension cord. Make sure your extension cord is in good condition. When using an extension cord,
be sure it is rated for the voltage and current rating of your product. An undersized cord will cause a drop in line
voltage resulting in loss of power and overheating. Table 1 shows the correct wire size to use depending on cord
length and nameplate ampere rating. If in doubt, use the next heavier gauge. The smaller the AWG gauge number,
the heavier the cord.
WARNING: Dust created during grinding, sawing, power sanding, drilling, and other activities may contain chemicals known
to the State of California to cause cancer, birth defects or other reproductive harm.
WARNING: Keep children and visitors away. Remove starter keys turn off master switches. Padlock equipment or work area
when not in use.
WARNING: Never leave grinder running unattended. Always turn power off after use.
Caution:
Don’t force grinder. It will do the job better and safer at the feed rate for which it was designed.
Caution:
Use right tool. Don’t force tool or attachment to do a job for which it was not designed.
Caution:
Maintain grinder with care. Keep grinder clean for best and safest performance.
Always use guard and eyeshield.
Operating the grinder without the guard and eyeshield or with damaged guard and
eyeshield must not be attempted because of the hazard this introduces.
Do not overtighten wheel nut
. A damaged grinding wheel can disintegrate in all directions. An overtightened wheel nut
can stress the grinding wheel and cause it to disintegrate during operation. Wheel nut should be tightened just enough
to prevent grinding wheel from slipping on shaft when grinding. Use only flanges furnished with this grinder. The flanges
furnished with the grinder are designed to grip the grinding wheel without introducing excessive stresses in the wheel.
Replace a cracked or chipped wheel immediately
. A cracked wheel will disintegrate when operated, causing a hazard
to operator and nearby personnel. If a wheel has a chip or crack on any surface, do not use it.
