Jet BGC SERIES User manual

OPERATOR’S MANUAL
BGC SERIES
BENCH GRINDERS
www.jetequipment.com

2 YEAR
LIMITED WARRANTY
JET offers a two year limited
warranty on this product
JET makes every effort to assure that it’s products meet high quality standards and
warrants to the retail consumer/purchaser of our products that each product is free from
defects in material and workmanship as follows: 2 YEAR LIMITED WARRANTY ON THIS
JET PRODUCT. Warranty does not apply to defects due directly of indirectly to misuse,
abuse, negligence or accidents, repairs or alterations performed outside our facilities or to
a lack of maintenance. To take advantage of this warranty, the product or part must be re-
turned freight prepaid to an authorized service station designated by our Vancouver ofce.
Proof of purchase date and an explanation of the problem must accompany the merchan-
dise. If our inspection discloses a warrantable defect JET will repair or replace the product
at our option and return the product freight prepaid.
PROOF OF PURCHASE
Please retain your dated sales receipt as proof of purchase to validate the warranty period.
MACHINERY WARRANTY
SPECIFICATIONS BGC-6 (240153) BGC-8 (240154)
MACHINERY WARRANTY
Motor 1/3HP, 1 PH, 115V 1/2HP, 1 PH, 115V
Amperage 3.5, 60 Hz 5, 60 Hz
R.P.M. 3,450 3,600
Arbor Size 1/2" 5/8"
Wheel Size 6"x3/4"x1/2" 8"x1"x5/8"
Net Weight (lbs.) 26 39
Shipping Weight (lbs.) 28 42

READ ALL INSTRUCTIONS BEFORE OPERATING GRINDER
WARNING
1. KEEP GUARDS IN PLACE and in working order.
2. REMOVE LOOSE TOOLS AND WRENCHES. Always check to see that tools and
adjusting wrenches are removed from tool before turning it on.
3. KEEP WORK AREA CLEAN. Cluttered areas and benches invite accidents.
4. DON’T USE IN DANGEROUS ENVIRONMENT. Don’t use power tools in damp or
wet locations, or expose them to rain. Keep work area well lighted.
5. KEEP CHILDREN AWAY. All visitors should be kept safe distance from work area.
6. MAKE WORKSHOP CHILD PROOF with padlocks, master switches, or by
removing starter keys.
7. DON’T FORCE TOOL. It will do the job better and safer at the rate for which it
was designed.
8. USE RIGHT TOOL. Don’t force tool or attachment to do a job for which it was not
designed.
9. WEAR PROPER APPREL. No loose clothing, gloves, neckties, rings, bracelets,
or other jewelry to get caught in moving parts. Nonslip footwear is recommended.
Wear protecive hair covering to contain long hair.
10. ALWAYS USE SAFETY GLASSES. Must comply with ANSI Z87.1. Also use face
or dust mask if cutting operation is dusty. Everyday eyeglasses only have impact
resistant lenses, they are NOT safety glasses.
11. SECURE WORK. Use clamps or a vise to hold work when practical. It’s safer than
using your hand and it frees both hands to operate tool.
12. DON’T OVERREACH. Keep proper footing and balance at all times.
13. MAINTAIN TOOLS WITH CARE. Keep tools sharp and clean for best and safest
performance. Follow instructions for lubricating and changing accessories.
14. DISCONNECT TOOLS before servicing and when changing accessories such
as wheels.
15. REDUCE THE RISK OF UNINTENTIONAL STARTING. Make sure switch is in off
position before plugging in.
16. USE RECOMMENDED ACCESSORIES. Consult the owner’s manual for recom-
mended accessories. The use of improper accessories may cause risk of injury
to persons.
17. NEVER STAND ON TOOL. Serious injury could occur if the tool is tipped or if the
cutting tool is unintentionally contacted.
18. SAVE THESE INSTRUCTIONS.

19. CHECK DAMAGED PARTS. Before further use of the tool, a guard or other part
that is damaged should be carefully checked to determine 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.
20. DIRECTION OF FEED. Feed work into wheels against the direction of rotation of
the wheel only.
21. NEVER LEAVE TOOL RUNNING UNATTENDED. TURN POWER OFF. Don’t
leave tool until it comes to a complete stop.
GROUNDING
1. In the event of a malfunction or breakdown, grounding provides a path of least
resistance for electric current to reduce the risk of electric shock. This tool is
equipped with an electric cord having an equipment-grounding conductor and a
grounding lug. The plug must be plugged into a matching outlet that is properly
installed and grounded in accordance with all local codes and ordinances.
2. Do not modify the plug provided. If it will not t the outlet, have the proper outlet
installed by a qualied electrician.
3. Improper connection of the equipment-grounding conductor can result in a risk of
electric shock. The conductor with insulation having an outer surface that is green
with or without yellow strip is the equipment-grounding conductor. If repair or
replacement of the electric cord or plug is necessary, do not connect the equip-
ment-grounding conductor to a live terminal.
4. Check with a qualied electrician or serviceman if the grounding instructions are
not completely understood, or if in doubt as to whether the tool is properly
grounded.
5. Use only 3-wire extension cords that have 3-prong grounding plugs and 3-pole
receptacle that accept the tool’s plug.
6. Repair or replace damaged or worn cord immediately.
7. This tool is intended for use on a circuit that has an outlet that looks like the one
illustrated in Sketch A in Figure 1. The tool has a grounding plug that looks like the
lug illustrated in Sketch A in Figure 1. A temporary adapter, which looks like the
adapter illustrated in Sketches B and C, may be used to connect this plug to a 2-
pole receptacle as shown in Sketch B if a properly grounded outlet is not available.
The temporary adapter should be used only until a properly grounded outlet can
be installed by a qualifed electrician. The green-colored rigid ear, lug, etc. extend-

ing from the adapter must be connected to a permanent ground such as a
properly grounded outlet box.
CAUTION. In Canada only the Grounding as shown on Fig. A will be acceptable.
Also the extension cords shall be CSA certied SJT type or better.
FOR YOUR OWN SAFETY READ INSTRUCTION MANUAL BEFORE
OPERATING GRINDER
1. Wear eye protection that complies with ANSI Z87.1 specications.
2. Use grinding wheel suitable for speed of grinder.
3. Stand beside the bench grinder during start-up, not facing directly in
front.
4. One minute idle rotation is necessary for the new grinder wheel.
Should the new grinder wheel break, it will happen within the rst one
minute of operation.
5. Don’t remove the wheel guard.
6. Don’t use the grinder wheel to cut anything.
7. Don’t use anything to stress the grinder wheel.
8. Use a grinding wheel dressing tool to shape or remove glaze from
grinding wheels.
9. Adjust distance between wheel and work rest to maintain 1/8 inch or
less separation as the diameter of the wheel decreases with use.
10. Connect to a supply circuit protected by a circuit breaker or time-
delay fuse.
11. Secure the bench grinder to its supporting surface to prevent the
grinder from tipping over, sliding, or walking on its supporting surface.
A. Replace cracked wheel immediately.
B. Always use guards and eye shield.
C. Do not overtighten wheel nut.
D. Use only anges furnished with this grinder.

SWITCH
The switch is located on the front of the
grinder near the bottom. To turn the tool
“ON" depress the rocker switch at the left
side near the word “ON". To turn the tool
“OFF" depress the right side portion of
the rocker switch, near the word “OFF".
INSTALLING TOOL RESTS
TURN OFF AND UNPLUG THE BENCH
GRINDER
Remove the tool rests from the top
portion of the poly-foam carton liner
and install them to the wheel guards as
shown in the gure. Use the bolts and
washers from the plastic bag to secure
them in place, as shown in Figure 1.
NOTE: There is a left and a right tool
rest. Reger to Figure 1 to ensure that
you install them correctly.
When in actual use, the tool rests should
be adjusted to within 1/8" of the grinding
wheel or other accessory being used.
INSTALLING THE SPARK
GUARDS AND EYE SHIELD
BRACKETS
TURN OFF AND UNPLUG BENCH
GRINDER
The combination Spark Guard and Eye
Shield Brackets are assembled and in a
plastic bag. They are identied L-for left
and R-for right. Refer to Figure 2 to in-
stall them to the Bench Grinder using the
two screws in the wheel guard (In some
cases these screws will be in the plastic
bag). Adjust the edge of the spark guard

to within 1/16" of the grinding wheel or
other accessory as shown in the gure.
Tighten the two screws securely.
INSTALLING THE EYE SHIELDS
TURN OFF AND UNPLUG BENCH
GRINDER.
Remove the steel strip from the top
surface of each Eye Shield by removing
the two screws. Install the shields, (they
are identical and will t either side) to the
brackets, as shown in Figure 3. Tight-
en the screws securely. Adjust the eye
shields so they are between the wheels
and your eyes.
THE EYE SHIELDS ARE NOT
DESIGNED TO REPLACE SAFETY
GLASSES.
Tighten the shields in place by tightening
the plastic knob in the bracket assembly.
Remove protective paper covering.

CHANGING ACCESSORIES
TURN OFF AND UNPLUG THE BENCH GRINDER. USE ONLY GRINDING
WHEELS THAT MEASURE 6 INCHES IN DIAMETER FOR MODE BGC-6 AND
8 INCHES IN DIAMETER FOR MODEL BGC-8. MODEL BGC-6 HAS 1/2 INCH
ARBORS ON BOTH SIDES. MODEL BGC-8 HAS 5/8 INCH ARBORS ON BOTH
SIDES.
Follow the steps presented below to remove and replace an accessory:
1. Raise the eye shield up, out of the way.
2. Loosen and pull the tool rest out as far as possible. Do not remove it.
3. Loosen and pull the spark guard out as far as possible. Do not remove it.
4. Remove the ve screws from the left side wheel cover and remove the cover.
5. Insert a at bladed screwdriver into the slot in the left end of the grinder rotor
shaft. Hold the screwdriver rmly to keep the shaft from turning as you loosen
and remove the hex nut in the center of the grinding wheel or other accessory.
NOTE: If you are changing only the right side accessory, you still need to remove
the left wheel cover. It may be necessary to strike the wrench sharply in the
loosening direction with the heel of your hand to loosen the nut.
NOTE: The nut on the right side of the grinder has a standard right hand thread
turn counter-clockwise to loosen). The one on the left side has a left hand thread
(turn clockwise to loosen).
6. Remove the wheel washer and the wheel.
7. Inspect the wheel for cracks, chips or any other visible damage (other than
normal wear) and discard if such damage is found. Inspect the blotter for
damage. If the blotter is missing or severely damaged, replace it with a piece of
thin cardboard or blotter paper cut in the same shape. NEVER USE A GRIND-
ING WHEEL WITHOUT A BLOTTER.
8. Install the new wheel or other accessory. Be sure that both wheel washers are in
place (concave sides toward wheel). See Figure 6.
9. Hold as before and tighten the nut rmly but do not overtighten.
OVERTIGHTENING CAN CRACK A GRINDING WHEEL.
10. Replace the wheel cover and its ve screws.
11. Adjust the tool rest to 1/8" from the accessory and tighten securely.
12. Adjust the eye shield to a point between your eyes and the accessory.

OPERATING INSTRUCTIONS
As you face your bench grinder, the wheel on the left is a medium (60 grit) wheel for
medium material removal and general purpose grinding.
The wheel on your right is a coarse (36 grit) wheel for fast material removal.
To operate the bench grinder, put on safety glasses and turn the tool on. Allow it to
reach full speed (3450 RPM for BGC-6 and 3600 RPM for BGC-8) before grinding.
Hold the workpiece rmly and against the tool rest. Hold very small pieces with pliers
or other suitable clamps. Feed the work smoothly and evenly into the grinding wheel.
Move the work slowly and avoid jamming the work against the wheel. As the wheel
tends to slow down you should occasionally release the pressure to let the wheel
return to full speed.
Grind only on the face of the grinding wheel and never the side of it. (Some wheels
are designed for side grinding and will say so on their blotters.)
CAUTION: Prolonged grinding will cause most materials to become hot. Use care
when handling them.
ACCESSORIES
The accessories listed in this manual are available at extra cost from your local dealer,
and have not been evaluated by Underwriters Laboratories Inc.
Recommended accessories for your grinder are shown in this manual.
GRINDING WHEELS: BGC-6 - 6" Diam. x 3/4" Width x 1/2" Arbor Hole
BGC-8 - 8" Diam. x 1" Width x 5/8" Arbor Hole

DESCRIPTION MAXIMUM SAFE SPEED
GRINDING WHEELS
1/2" Face, 6" dia. 60 Grit Medium Grinding Wheel 3,825RPM
5/8" Face, 6" dia. 60 Grit Medium and 36 Grit Coarse Grinding Wheel 4,136RPM
3/4" Face, 6" dia. 60 Grit Medium Grinding Wheel 4,136RPM
3/4" Face, 8" dia. 60 Grit Medium and 36 Grit Coarse Grinding Wheel 3,600RPM
1" Face, 8" dia. 60 Grit Medium and 36 Grit Coarse Wheel 3,600RPM
When using electrical tools please follow basic safety requirements for your own safe-
ty and also to reduce risk of re and electric shock.
PLEASE READ YOUR INSTRUCTION MANUAL CAREFULLY BEFORE
BEGINNING OPERATION.
EXTENSION CORDS:
USE PROPER EXTENSION CORD. Make sure your extension cord is in good con-
dition. When using an extension cord, be sure to use one heavy enough to carry the
current your products will draw. An undersized cord will cause a drop in line voltage
resulting in loss of power and overheating. Table noted below, shows the correct size
to use depending on cord length and nameplate ampere rating. If in doubt, use the
next heavier gauge. The smaller the gauge number, the heavier the cord.
Minimum gauge for cord
Volts Total length of cord in feet
120V 25 ft. 50 ft. 100 ft. 150 ft.
Ampere Rating
Not
More More
Than Than AWG
0 6 18 16 16 14
6 10 18 16 14 12
10 12 16 16 14 12
12 16 14 12 Not Recommended
OUTDOOR USE EXTENSION CORDS. When tool is used outdoors, use only exten-
sion cords intended for use outdoors and so marked.
STAY ALERT. Watch what you are doing. Use common sense. Do not operate tool
when you are tired.
CHECK DAMAGED PARTS. Before further use of the tool, a guard or other part that
is damaged should be carefully checked to determine 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 opera-
tion. A guard or other part that is damaged should be properly repaired or replaced by
an authorized service center unless otherwise indicated elsewhere in this instruction
manual. Have defective switches replaced by authorized service center. Do not use
tool if switch does not turn tool on and off.