Palmgren 82064A 6" Variable speed bench grinder Operating manual & parts list

operating manual & parts list
82064A
6″ Variable speed
BENCH GRINDER
Read carefully and follow all safety rules and operating instructions before
first use of this product.
37790.00-0713
Palmgren Operating Manual & Parts List
82064A
PREPARE WORK AREA FOR JOB
DESCRIPTION
• Keep work area clean. Cluttered work areas and work benches
invite accidents.
• Do not use power tools in dangerous environments. Do not use
power tools in damp or wet locations. Do not expose power
tools to rain.
• Work area should be properly lighted.
• Proper electrical plug should be plugged directly into properly
grounded, three-prong receptacle.
• Extension cords should have a grounding prong and the three
wires of the extension cord should be of the correct gauge.
• Keep visitors at a safe distance from work area.
• Keep children out of the workplace. Make workshop childproof.
Use padlocks, master switches or remove switch keys to prevent any unintentional use of power tools.
This Palmgren Bench Grinder is equipped with a totally enclosed
ball bearing motor. Armature assembly is dynamically balanced for
smooth operation. Motor housing is compact so long pieces of
work can press against both wheels without touching the motor
frame. Grinder operates at 3450 rpm for grinding and also at 20003300 rpm for sharpening. Removable wheel guards allow for easy
changing of wheels. Two-way tool rests are adjustable for wheel
wear and angle grinding. Grinder comes complete with spark
guards, safety eyeshields and dust collection hose.
UNPACKING
Check for shipping damage. If damage has occurred, a claim must
be filed with the carrier immediately. Check for completeness.
Immediately report missing parts to dealer.
TOOL SHOULD BE MAINTAINED
• Always unplug tool prior to inspection.
• Consult manual for specific maintaining and adjusting procedures.
• Keep tool clean for safest operation.
• Remove adjusting tools. Form habit of checking to see that
adjusting tools are removed before turning machine on.
• Keep all parts in working order. Check to determine that the
guard or other parts will operate properly and perform their
intended function.
• Check for damaged parts. Check for alignment of moving parts,
binding of moving parts, breakage of parts, mounting and any
other condition that may affect a tool’s operation.
• A guard or other part that is damaged should be properly
repaired or replaced. Do not perform makeshift repairs. (Use
the parts list to order replacement parts.)
SPECIFICATIONS
Horsepower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1/3
Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .120
Amperes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5
Hertz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
Phase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Single
RPM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2000-3300, 3450
Rotation (viewed from left side) . . . . . . . . . . . . . . . . . . . . . . . . .Clockwise
Wheel diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6"
Wheel bore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1/2"
Wheel face . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3/4"
SAFETY RULES
WARNING: For your own safety, read operating instructions manual before operating tool.
PROPOSITION 65 WARNING: Some dust created by using power
tools contain chemicals known to the state of California to cause
cancer, birth defects or other reproductive harm.
Some examples of these chemicals are:
• Lead from lead-based paints.
• Crystalline silica from bricks and cement and other masonry
products.
• Arsenic and chromium from chemically treated lumber.
WARNING: Your risk from these exposures vary, depending on
how often you do this type of work. To reduce your exposure to
these chemicals: work in a well ventilated area and work with
approved safety equipment. Always wear OSHA/NIOSH approved,
properly fitting face mask or respirator when using such tools.
KNOW HOW TO USE TOOL
• Use right tool for job. Do not force tool or attachment to do a
job for which it was not designed.
• Disconnect tool from power when changing accessories such
as grinding wheels, buffing wheels and the like.
• Avoid accidental start-up. Make sure that the switch is in the off
position before plugging in.
• Do not force tool. It will work most efficiently at the rate for
which it was designed.
• Keep hands away from moving parts and grinding surfaces.
• Never leave a tool running unattended. Turn the power off and
do not leave tool until it comes to a complete stop.
• Do not overreach. Keep proper footing and balance.
• Never stand on tool. Serious injury could occur if tool is tipped
over.
• Know your tool. Learn the tool’s operation, application and specific limitations.
• Use recommended accessories. Understand and obey all safety
instructions supplied with accessories. The use of improper
accessories may cause risk of injury to persons.
• Do not over tighten wheel nut. Replace cracked wheel immediately. Use only flanges supplied with the grinder.
• Adjust distance between wheel and tool rest to maintain 1/16"
or less gap.
• Handle the workpiece correctly. Whenever possible, use tool
rest to support workpiece during grinding operation. Turn tool
off if it jams.
• Always use guards and eyeshields.
• Clean grinding dust from beneath tool frequently.
BE PREPARED FOR JOB
• Wear proper apparel. Do not wear loose clothing, gloves, neckties, rings, bracelets or other jewelry which may get caught in
moving parts of machine.
• Wear protective hair covering to contain long hair.
• Wear safety shoes with non-slip soles.
• Wear safety glasses complying with United States ANSI Z87.1.
Everyday glasses have only impact resistant lenses. They are
NOT safety glasses.
• Wear face mask or dust mask if operation is dusty.
• Be alert and think clearly. Never operate power tools when tired,
intoxicated or when taking medications that cause drowsiness.
2
Palmgren Operating Manual & Parts List
82064A
NOTE: Left upper eyeshield bracket is stamped “L” for identification.
• Slide 1/4-20 x 1/2” knob (K) through hole at top of left spark
guard (L) into upper eyeshield bracket (H) and secure in position.
• Locate eyeshield in desired position for protecting operator
and secure all knobs and bolts.
• Mount right eyeshield assembly in a similar manner.
ASSEMBLY
To be certain the grinding wheels have not been damaged in shipment, strike the edges slightly with a metal object. A ringing sound
indicates a good wheel, but a dull noise may signal a fracture.
Parts to be fastened to the unit should be located and accounted
for (See List and Figure 1).
A 3/8-16 x 3/4” Hex bolt, 2 each
B 3/8” Flat washer, 4 each
C Tool rest bracket (left & right), 2 each
D Tool rest (left & right), 2 each
E 5/16” Flat washer, 2 each
F 5/16-18 x 1” Knob, 2 each
G #10-24 x 3/8” Pan head screw, 4 each
H Upper eyeshield bracket, 2 each (left and right)
I Eyeshield, 2 each
J Lower eyeshield bracket, 2 each
K 1/4-20 x 1/2” Knob, 2 each
L Spark guard (left and right), 2 each
M 3/8-16 x 1/2” Knob, 2 each
Dust collector hose not shown.
H
I
DUST COLLECTOR HOSE
• A dust collector hose has been provided with grinder. Slide
hoses onto sides of T-connector and flanges. Mount the hose
by sliding the flanges at each end over the exhaust ports on
the left and right wheel guards. Attach 2½” shop vacuum hose
to collector hose. Be sure hose is mounted securely.
DANGER: Be sure to empty shop vacuum of all flammable material (flammable liquids and vapors, paper, wood, plastic, etc.) before
connecting vacuum to grinder. Hot sparks from grinder may ignite
flammable materials in shop vacuum.
INSTALLATION
MOUNT GRINDER
• Mount grinder to a solid horizontal surface (hardware not provided). If mounted to metal pedestal, align mounting holes
with corresponding holes in pedestal. Insert a 1/4-20 x 1¼” hex
head bolt with flat washer through base of grinder. From bottom of pedestal, place a 1/4” flat washer and 1/4”-20 hex nut onto
the bolt. Tighten only until space between grinder base and
pedestal is 1/8”. Using second nut on each bolt, jam tighten
against the first to prevent loosening by vibration.
• To mount grinder to wooden bench top, use 1/4 x 1¼” wood
screws with flat washers beneath heads. Tighten screws until
space between grinder base and bench top is 1/8”.
J
G
K
B
M
L
GROUNDING INSTRUCTIONS
WARNING: Improper connection of equipment grounding con-
C
B
D
ductor can result in the risk of electrical shock. Equipment should
be grounded while in use to protect operator from electrical shock.
• Check with a qualified electrician if grounding instructions are
not understood or if in doubt as to whether the tool is properly
grounded.
• This grinder is equipped with an approved 3-conductor cord
rated at 300V and a 3-prong, grounding type plug (See Figure
2) for your protection against shock hazards.
A
E
F
Figure 1 – Left Tool Rest and Eyeshield Assembly
TOOL REST ASSEMBLY
• Place tool rest (D) over tool rest bracket and secure in position
with 5/16” flat washer (E) and 5/16-18 x 1” knob (F).
• Attach tool rest bracket to the bottom of the left wheel guard
using one 3/8-16 x 3/4” hex head bolt (A) and one 3/8” flat
washer (B). Make sure that the slot of the bracket is located
over the raised boss on the guard. Tighten bolts finger tight.
• Position tool rest so that distance between tool rest and grinding wheel is less than 1/16”. Reposition angle of tool rest if necessary. Secure all knobs and bolts.
• Mount right tool rest in a similar manner.
Properly Grounded Outlet
Grounding Prong
3-Prong Plug
Figure 2 – 3-Prong Receptacle
• Grounding plug should be plugged directly into a properly
installed and grounded 3-prong grounding-type receptacle
(See Figure 2).
• Do not remove or alter grounding prong in any manner. In the
event of a malfunction or breakdown, grounding provides a
path of least resistance for electrical shock.
WARNING: Do not permit fingers to touch the terminals of plug
when installing or removing from outlet.
EYESHIELD ASSEMBLY
• Attach spark guard (L) to left wheel guard using 3/8-16 x 1/2”
knob (M) and 3/8” flat washer (B).
• Mount left upper eyeshield bracket (H) to eyeshield (I) using
two #10-24 x 3/8” pan head screws (G) and lower eyeshield
bracket (J).
3
Palmgren Operating Manual & Parts List
82064A
INSTALLATION (CONTINUED)
ELECTRICAL CONNECTIONS
WARNING: All electrical connections must be performed by a
• Plug must be plugged into matching outlet that is properly
installed and grounded in accordance with all local codes and
ordinances. Do not modify plug provided. If it will not fit in outlet, have proper outlet installed by a qualified electrician.
• Inspect tool cords periodically, and, if damaged, have repaired
by an authorized service facility.
• Green (or green and yellow) conductor in cord is the grounding
wire. If repair or replacement of the electric cord or plug is necessary, do not connect the green (or green and yellow) wire to
a live terminal.
• Where a 2-prong wall receptacle is encountered, it must be
replaced with a properly grounded 3-prong receptacle installed
in accordance with National Electric Code and local codes and
ordinances.
WARNING: This work should be performed by a qualified
electrician.
• A temporary 3-prong to 2-prong grounding adapter (See
Figure 3) is available for connecting plugs to a two pole outlet
if it is properly grounded.
Grounding Lug
Adapter
qualified electrician. Make sure tool is off and disconnected from
power source while motor is mounted, connected, reconnected or
anytime wiring is inspected.
• Motor is assembled with approved, 3-conductor cord to be
used at 120 volts. Motor is prewired at the factory for 120 volts.
OPERATION
Refer to Figure 4.
WARNING: Always wear safety glasses complying with United
States ANSI Z87.1 (shown on package) before commencing power
tool operation.
• To turn grinder “ON”, flick switch upward (Ref. No. 39). NOTE:
switch has a key which can be removed to prevent unauthorized use.
• To operate grinder at full speed (3450 RPM), turn knob (Ref. No.
59) completely counterclockwise.
• To operate grinder at a slower speed turn knob clockwise. The
speed is infinitely variable from 2000 to 3300 rpm.
• Keep a steady, moderate pressure on the work and keep it
moving at an even pace for smooth grinding.
• Pressing too hard overheats the motor and prematurely wears
down the grinding wheels.
• Note the original bevel angle on the item to be sharpened and
try to maintain that angle. Sharpening a cutting edge requires
removing burrs from edge.
• Deburring edge is done best by using the grinder to pull burr
from edge across the bevel angle.
• The grinding wheel should rotate into object being sharpened.
• Use slower wheel speed when sharpening tempered tools.
Overheating will destroy the temper.
• When grinding at high speed, dip work into a coolant regularly
to prevent overheating. Overheating can weaken metals.
Make sure this is
Connected to a known
Grounded Receptacle
3-Prong Plug
2-Prong Receptacle
Figure 3 – 2-Prong Receptacle with Adapter
• Do not use a 3-prong to 2-prong grounding adapter unless
permitted by local and national codes and ordinances.
(A 3-prong to 2-prong grounding adapter is not permitted in
Canada.) Where permitted, the rigid green tab or terminal on
the side of the adapter must be securely connected to a permanent electrical ground such as a properly grounded water
pipe, a properly grounded outlet box or a properly grounded
wire system.
• Many cover plate screws, water pipes and outlet boxes are not
properly grounded. To ensure proper ground, grounding means
must be tested by a qualified electrician.
MAINTENANCE
• As wheels wear, tool rests should be positioned closer to the
face of the wheels.
• The gap between the wheel and the tool rest should not be
greater than 1/16”. When the wheels are worn to the extent that
the 1/16” maximum gap cannot be maintained, the wheels
should be replaced.
• Replacement wheels should have a minimum rated speed of at
least 3600 RPM.
• Maximum wheel diameter is 6”.
• To loosen nuts holding the wheels, disconnect power and push
a wood wedge between the tool rest and the wheel to keep
the shaft from turning. The threads on the right side of the
grinder (facing unit) are right hand; threads on the left side are
left hand. Tighten nuts securely before operating the grinder.
• For grinding efficiency, wheels should be dressed periodically,
especially if they become clogged from grinding soft metals.
EXTENSION CORDS
• The use of any extension cord will cause some drop in voltage
and loss of power.
• Wires of the extension cord must be of sufficient size to carry
the current and maintain adequate voltage.
• Running the unit on voltages which are not within ±10% of the
specified voltage may cause overheating and motor burn-out.
• Use the table to determine the minimum wire size (A.W.G.)
extension cord.
• Use only 3-wire extension cords having 3-prong grounding
type plugs and 3-pole receptacles which accept the tool plug.
• If the extension cord is worn, cut or damaged in any way,
replace it immediately.
EXTENSION CORD LENGTH
Wire Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A.W.G.
Up to 25 ft. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
25 – 100 ft. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
100 – 150 ft. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
NOTE: Using extension cords over 150 ft. long is not recommended.
4
Palmgren Operating Manual & Parts List
82064A
TROUBLESHOOTING
SYMPTOM
POSSIBLE CAUSE(S)
CORRECTIVE ACTION
Grinder won’t start
1. Blown line fuse or tripped circuit breaker
1. If fuse is blown, replace with fuse of
proper size. If breaker tripped, reset it
2. Low line voltage
2. Check power supply for voltage and
correct as needed
3. Material wedged between wheel
and guard
3. Turn grinder off and remove material
4. Defective switch
4. Replace switch
5. Defective, blown capacitor
5. Replace capacitor
6. Defective circuit board
6. Replace circuit board
1. Improper mounting of grinder or
accessories
1. Remount
2. Grinding wheel out of balance
2. Dress wheels or replace wheels
3. Improper wheel mounting
3. Remount wheels, but rotate one wheel
90º with respect to its previous position.
Other wheel should remain in its original
position
1. Excess pressure required to grind material
1. Dress wheel or replace wheel with one of
proper grit
2. Grinding on side of wheel
2. Grind only on face of wheel
3. Motor not turning freely (without power)
3. Clean around wheels and shaft and/or
replace bearings
1. Overloading due to binding
1. Clean around wheels and shaft and/or
replace bearings
2. Defective plug
2. Replace plug
3. Defective cord
3. Replace cord
4. Defective switch
4. Replace switch
5. Faulty internal wiring
5. Contact your Palmgren distributor
1. Defective variable speed switch
1. Replace switch
2. Defective sensor
2. Replace sensor
3. Defective circuit board
3. Replace circuit board
Excessive vibration
Grinder overheating
Fuses are being blown or
circuit breakers are being tripped
Grinder will not operate in variable speed
mode
5
6
43
16
5
27
23
7
13
8
11
45
15
14 12
3 12
23
18
23
10
25
29
19
50
31
39
30
Figure 4 - Replacement Parts Illustration for 6” Variable Speed Bench Grinder
1
4
21
Palmgren Operating Manual & Parts List
40
26
44
46
32
37
2
52
42
41
36
38 34
26
26
55
13
10
15
49
45
35
30
53
33
52
51
24
56
47
12
28
17
54
57
58
48
19
27
12
18
25
3
6
20
6
1
9
23
22
23
4
23
82064A
7
#10-24 x 3/8” Pan head screw
Dust collector hose
Spark guard (Set of 2)
Wheel guard cover
Flange
Wheel flange
Inner wheel flange
Grinding wheel (36 coarse grit)
Grinding wheel (60 med. grit)
3/8-16 x 3/4” Hex head bolt
5-0.8mm Hex nut
3/8” Flat washer
5/16” Flat washer
Bracket (left)
5/16-18 x 1” Knob
Tool rest (left)
Tool rest (right)
1/4-20 x 1/2” Knob
3/8-16 x 1/2” Knob
1/2”-12 Hex nut (RH thread)
Upper eyeshield bracket (left)
Upper eyeshield bracket (right)
Eyeshield kit
Cover
Wheel guard
#10-24 x 1/4” Flange screw
1/4-20 x 3/8” Flange screw
5- 0.8 x 190mm Pan head screw
Endshield
Bearing 6202ZZ
Motor fan
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
† Not available as repair part.
∆ Not Shown.
* Standard hardware item available locally.
Description
Ref. No.
Palmgren Operating Manual & Parts List
*
08070.01
25814.00
24464.02
18904.00
00065.01
17316.00
02034.00
02033.00
*
*
*
*
25810.00
25812.00
25813.00
25825.00
25816.00
25817.00
00548.00
25177.00
25188.00
32290.00
18005.00
25959.00
03210.00
16670.00
17995.00
16617.02
01540.00
01608.00
Part Number
10
1
1
2
1
2
1
1
1
2
2
4
2
1
2
1
1
2
2
1
1
1
1
1
2
6
6
2
1
2
1
Qty.
Armature
Stator with housing
Grommet
Line cord
Strain relief
Base cover
Base
Switch with key
Base bumper
1/4” Lock washer
1/4”-20 Hex nut
1/2”-12 Hex nut (LH thread)
Capacitor
5mm Serrated washer
Variable switch
Bracket (right)
#10-24 x 3/8” Flange screw
Wavy washer
Knob
Circuit board
4-1.4 x 8mm Thread forming screw
Sensor
3-0.5 x 6mm Pan head screw
Endshield
Endshield cap
Plate
4-0.7 x 6mm Dog point set screw
Operators Manual
Recommended Accessories
Cast Iron Tool Stand
Worklight
Grinding Wheel Dresser
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
∆
∆
∆
∆
Description
Ref. No.
REPLACEMENT PARTS LIST FOR 6” BENCH GRINDER
70101
82904
82901
†
†
01066.00
00067.00
04055.00
23758.00
24548.02
08066.01
23991.00
*
*
00064.00
16908.00
*
22044.00
25826.00
03207.00
08283.00
22046.00
22056.00
09652.00
18000.00
05990.00
18001.02
18002.02
18003.00
09229.00
37790.00
Part Number
1
1
1
1
1
1
1
1
1
1
1
4
2
2
1
1
3
1
1
2
1
1
1
4
1
2
1
1
1
1
1
Qty.
82064A
Palmgren Operating Manual & Parts List
82064A
WARRANTY
Palmgren warrants their products to be free of defects in material or workmanship. This warranty does not cover defects due
directly or indirectly to misuse, abuse, normal wear and tear, failure to properly maintain the product, heated, ground or otherwise altered, or
used for a purpose other than that for which it was intended. The warranty does not cover expendable and/or wear parts (i.e. v-belts, coated
screws, abrasives), damage to tools arising from alteration, abuse or use other than their intended purpose, packing and freight. The duration
of this warranty is expressly limited to one year parts and labor, unless otherwise noted below beginning from the date of delivery to the
original user. The Palmgren products carry the following warranties on parts with a 1 year warranty on labor:
•
•
•
•
•
•
•
•
•
•
USA Machine vises – Lifetime
IQ Machine vises – Lifetime
Bench vises – Lifetime
Positioning tables – Lifetime
Bench grinders & buffers – 3 years
Tapping machines – 2 years
Drilling machines – 2 years
Finishing machines – 2 years
Band saws – 2 years
Work stands – 2 years
• Arbor presses – 2 years
• Metal forming equipment – 2 years
• Accessories – 1 year
The obligation of Palmgren is limited solely to the repair or replacement, at our option, at its factory or authorized repair agent of any part
that should prove deficient. Purchaser must lubricate and maintain the product under normal operating conditions at all times. Prior to
operation become familiar with product and the included materials, i.e. warnings, cautions and manuals. Failure to follow these
instructions will void the warranty.
This warranty is the purchaser’s exclusive remedy against Palmgren for any deficiency in its products. Under no circumstances is Palmgren
liable for any direct, indirect, incidental, special or consequential damages including lost profits in any way related to the use or inability to
use our products. This warranty gives you specific legal rights which may vary from state to state.
SERVICE & REPAIR
1.
2.
3.
4.
If a Palmgren product requires a repair or warranty service DO NOT return the product to the place of purchase.
All warranty related work must be evaluated and approved by Palmgren.
Prior to returning any item the user must obtain factory approval and a valid RGA number.
For instructions and RGA number call toll free (800) 621-6145.