woodmizer Re-Sharp CBN-AC Guide

Wood-Mizer Re•Sharp™
Safety, Operation, Maintenance
& Parts Manual
CBN-AC Sharpener rev. A.00
Safety is our #1 concern! Read and understand
all safety information and instructions before oper-
ating, setting up or maintaining this machine.
December 2000
Form #942
!

Table of Contents Section-Page
2 CBNdoc122007 Table of Contents
SECTION 1 SAFETY & GENERAL INFORMATION 1-1
1.1 Electrical Safety......................................................................................................... 1-1
1.2 Blade Handling.......................................................................................................... 1-2
1.3 Machine Operation .................................................................................................... 1-2
1.4 Sharpener Components.............................................................................................. 1-3
1.5 Control Panel Components........................................................................................ 1-4
SECTION 2 SETUP & OPERATION 2-1
2.1 Blade Support Installation ......................................................................................... 2-1
2.2 Blade Clamp Adjustment .......................................................................................... 2-2
2.3 Hook Angle Adjustment............................................................................................ 2-3
2.4 Sharpener Alignment................................................................................................. 2-5
2.5 Grinding Wheel Installation ...................................................................................... 2-7
2.6 Blade Installation....................................................................................................... 2-7
2.7 Face Grind Adjustment.............................................................................................. 2-8
2.8 Depth Grind Adjustment ........................................................................................... 2-9
2.9 Oil Flow Adjustment ............................................................................................... 2-11
2.10 Feed Rate Adjustment ............................................................................................. 2-11
2.11 Blade Rejection ....................................................................................................... 2-11
2.12 Operation Overview ................................................................................................ 2-12
2.13 Shutoff .....................................................................................................................2-12
SECTION 3 MAINTENANCE 3-1
3.1 Grinding Wheel Replacement ................................................................................... 3-1
3.2 Oil Level....................................................................................................................3-1
3.3 Bearing/Shaft Replacement ....................................................................................... 3-2
SECTION 4 MAINTENANCE & TROUBLESHOOTING 4-1
4.1 Sharpener Maintenance ............................................................................................. 4-1
4.2 Blade Sharpening Tips .............................................................................................. 4-2
SECTION 5 ALIGNMENT 5-1
5.1 Roller Bearing Alignment ......................................................................................... 5-1

Table of Contents Section-Page
Table of Contents
SECTION 6 PARTS 6-1
6.1 How To Use The Parts List ...................................................................................... .6-1
6.2 Sample Assembly ..................................................................................................... .6-1
6.3 Side Blade Support Arms ........................................................................................ 6-2
6.4 Stand Assembly ......................................................................................................... 6-3
6.5 Brush.......................................................................................................................... 6-5
6.6 Rear Blade Support Guides ....................................................................................... 6-6
6.7 Motor Mount ............................................................................................................. 6-7
6.8 Cam............................................................................................................................ 6-9
6.9 Clamp ...................................................................................................................... 6-11
6.10 Grinder.....................................................................................................................6-13
6.11 Drip Pan/Pump ........................................................................................................ 6-15
6.12 Control Panel/Box ................................................................................................... 6-16
SECTION 7 ELECTRICAL INFORMATION 7-1
7.1 Electrical Symbol Diagram, Industrial Sharpener..................................................... 7-1
7.2 Electrical Component List......................................................................................... 7-2
7.3 Component Layout Diagram ..................................................................................... 7-2

Safety & General Information
Electrical Safety
1
1-1 ISHdoc122007 Safety & General Information
SECTION 1 SAFETY & GENERAL INFORMATION
This symbol calls your attention to instructions concerning your personal safety. Be sure
to observe and follow these instructions. This symbol accompanies a signal word. The
word DANGER indicates an imminently hazardous situation which, if not avoided, will
result in death or serious injury. WARNING suggests a potentially hazardous situation
which, if not avoided, could result in death or serious injury. CAUTION refers to potentially
hazardous situations which, if not avoided, may result in minor or moderate injury to per-
sons or equipment. Read all safety instructions before operating this equipment and
observe all safety warnings!
Warning stripes are placed on areas where a single decal would be insufficient. To avoid
serious injury, keep out of the path of any equipment marked with warning stripes.
Read and observe all safety instructions before operating this equipment! Also read any
additional manufacturer’s manuals and observe any applicable safety instructions includ-
ing dangers, warnings, and cautions.
Always be sure that all safety decals are clean and readable. Replace all damaged safety
decals to prevent personal injury or damage to the equipment. Contact your local distribu-
tor, or call your Customer Service Representative to order more decals.
Always properly dispose of all by-products, including debris, coolant and oil.
Safety instructions are listed in this section by the following operations:
Electrical Safety
Blade Handling
Machine Operation
1.1 Electrical Safety
DANGER! Make sure all electrical installation, service
and/or maintenance work is performed by a qualified elec-
trician and is in accordance with applicable electrical codes.
DANGER! HAZARDOUS VOLTAGE can cause shock,
burns, or death. SHUT OFF & LOCK OUT POWER before
performing service in any area of this machine. DO NOT
restore power until all access panels are replaced and
secured.
WARNING! Always turn off and disconnect power at control
console AND at main supply circuit breaker before perform-
ing any service to the machine.

Safety & General Information
Blade Handling
Safety & General Information ISHdoc122007 1-2
1
1.2 Blade Handling
WARNING! Always wear gloves and eye protection when
handling bandsaw blades. Keep all persons away from
area when coiling or carrying a blade.
1.3 Machine Operation
DANGER! Make sure all guards and covers are in place
and secured before operating the sharpener. Failure to do
so may result in serious injury.
DANGER! Keep all persons away from moving parts when
operating this machine. Failure to do so will result in serious
injury.
DANGER! Always keep hands away from moving bandsaw
blade. Failure to do so will result in serious injury.
WARNING! Always wear eye, ear, respiration, and foot pro-
tection when operating this machine. Failure to do so may
result in serious injury.
WARNING! Secure all loose clothing and jewelry before
operating this machine. Failure to do so may result in seri-
ous injury or death.

Safety & General Information
Sharpener Components
1
1-3 ISHdoc122007 Safety & General Information
1.4 Sharpener Components
See Figure 1-1. The major components of the Industrial Sharpener are shown below.
FIG. 1-1
CESH01
Rear Blade Support Guide
s
Brushes
Cam Assembly
Clamp Assembly
Side Blade Suppert Arms
Oil Pump/Filter Assembly
Control Box
Grinder Assembly

Safety & General Information
Control Panel Components
Safety & General Information ISHdoc122007 1-4
1
1.5 Control Panel Components
See Figure 1-2. The control panel components and their descriptions are shown below.
FIG. 1-2
0
I
0
I
0
I
E
M
E
R
G
E
N
C
Y
S
T
O
P
CESH22B
Disconnect Switch
Power Lamp
Sharpening Cycle Lamp
Emergency Stop Switch
Cam Motor Start/Stop Switch
Grinder Motor Start/Stop Switch
Oil Flow Start/Sto
p
Switch
Key Lock
Feed Rate Dial
Tooth Counter

Safety & General Information
Control Panel Components
1
1-5 ISHdoc122007 Safety & General Information
Disconnect switch
Disconnects/connects power to equipment.
Turn switch to the "0", or vertical, position to lock out all electrical power during ser-
vice or when equipment is not in use. NOTE: The Disconnect Switch must be in the
"0" position before the control box door can be opened.
To reconnect power to equipment, turn switch to the "1", or horizontal, position.
Sharpening Cycle Lamp
Lights up when the blade has been sharpened completely.
Feed Rate Dial
Controls cam speed.
Rotate dial as necessary to increase or decrease cam speed.
Tooth counter
Sets/keeps track of number of teeth to be sharpened
The upper dial controls the number of teeth to be sharpened. To set, press the but-
ton above the appropriate number until the dial shows the total number of teeth on
the blade to be sharpened.
The lower dial automatically keeps track of the number of teeth which have been
sharpened. After reaching the number set by the upper dial, the lower dial must be
reset before the sharpener can be operated again. To reset, push the reset button in
and release.
Emergency Stop Switch
Shuts off all machine operations.
To shut off all machine operations, press this switch. NOTE: After being activated,
the Emergency Stop Switch must be reset before the sharpener can be operated
again. To reset, rotate the switch counterclockwise and release.
Oil Flow Start/Stop Switch
Starts/Stops coolant pump motor
Grinder Motor Start/Stop Switch
Starts/Stops grinder motor
Cam Motor Start/Stop Switches
Press the Cam Motor Start Switch to clamp the blade in place and start the cam
motor. NOTE: Place the Feed Rate Dial in the "0" position before starting the cam
motor.
Press the Cam Motor Stop Switch to turn the cam motor off and unclamp the blade.

Setup & Operation
Blade Support Installation
Setup & Operation ISHdoc122007 2-1
2
SECTION 2 SETUP & OPERATION
2.1 Blade Support Installation
The sharpener includes two blade support arms with guide assemblies.
To install the support arms, lubricate the threaded ends of the arms with grease. Insert
one arm into the threaded holes on each side of the sharpener.
1. Each guide assembly includes a blade support with post, a blade support without post,
two bolts, a self-locking nut, and a wing nut.
See Figure 2-1. To install the guide assemblies, join one of the guide assemblies around
the end of the left blade support arm. Face the post outward as shown. Bolt from the
hexed side of the guide assembly (these hex-shaped holes will keep the bolts from turn-
ing once in place). Secure the top bolt with a self-locking nut. Secure the bottom bolt with
a wing nut.
2. Assemble the remainingone guide assembly to the right blade support arm, posts facing
outward.
3. Tilt the guides on the left blade support arm slightly backward, toward the rear of the
sharpener. Tilt the guides on the right support arm slightly forward, toward the front of the
sharpener.
Support Assembly
Blade Support Arm
CESH04

Setup & Operation
Blade Clamp Adjustment
2
2-2 ISHdoc122007 Setup & Operation
2.2 Blade Clamp Adjustment
The adjustable blade clamp allows you to sharp 1", 1 1/4", 1 1/2", 1 3/4", and 2" blades.
See Figure 2-2. The blade rests on two height adjustment pins. The pins insert into any
of the rear clamp block’s five sets of holes.
Place the blade height adjustment pins in the top set of holes to sharpen 1" blades, the
next set to sharpen 1 1/4" blades, and so on.
To change pin location, remove the set screw from each side of the rear clamp block.
Remove the pins from one set of holes and reinstall to desired set of holes. Reinstall the
set screws to the appropriate holes in the sides of the block and tighten to secure the pins
in place.
FIG. 2-2
CESH05
Set Screw
Height
Adjustment
Pin

Setup & Operation
Hook Angle Adjustment
Setup & Operation ISHdoc122007 2-3
2
2.3 Hook Angle Adjustment
An angled template, which includes angle for 15 degrees, is provided to check hook
angle.
Note: Refer to the Wood-Mizer Blade Handbook for recommended hook angle specifica-
tions for your sawing application.
See Figure 2-3. To adjust sharpener head hook angle, set the straight part of the pro-
vided template on the clamping fixture. Loosen the depth adjustment and/or the depth
stop knob until the sharpener head rests on the template.
FIG. 2-3
A
ngled Template
Sharpener Head

Setup & Operation
Hook Angle Adjustment
2
2-4 ISHdoc122007 Setup & Operation
See Figure 2-4. Next, loosen the sharpener head mounting bolt and nut in the motor
mounting bracket. Loosen stop bolt and its jam nut. Tip the sharpener head until you
reach the desired angle. Hold the sharpener head in place while retightening the sharp-
ener head mounting bolt and nut. Tighten the stop bolt and secure it with the jam nut.
FIG. 2-4
CESH24
Sharpener head
mounting bol and nutt
Stop bolt with jam nut

Setup & Operation
Sharpener Alignment
Setup & Operation ISHdoc122007 2-5
2
2.4 Sharpener Alignment
Use the Semi-industrial sharpener alignment tool as necessary to achieve accurate align-
ment between the blade clamp and the grinding wheel.
IMPORTANT! Do not attempt to adjust the tool gauge
points. They have been pre-calibrated at the factory to
ensure accurate alignment results.
IMPORTANT! The grinding wheel must be 4” in diameter or
larger. Do not align the sharpener if the grinding wheel is
less than 4”.
1. Make sure the grinder motor is OFF. Cycle the cam until the grinding wheel is at the tip of
the tooth (about to begin face grind).
2. Remove the plate with clamp assembly.
3. Remove the grinding wheel cover and sharpener arbor nut. Remove the grinding wheel.
4. Install the alignment tool to the grinder motor shaft as shown.
See Figure 2-5. Position the tool so all three gauge points are in line with the front clamp
plate. Secure the tool in position with the sharpener arbor nut.
FIG. 2-5
!
Alignment
tool

Setup & Operation
Sharpener Alignment
2
2-6 ISHdoc122007 Setup & Operation
5. Install 12 flat washers to the motor shaft. Secure the alignment tool and spacer washers
in position with the sharpener arbor nut.
6. Use a 3/4” wrench to loosen the mounting bolts.
7. Position the sharpener haed so the front clamp plate touches all three tool gauge points.
Secure in position by tightening the bracket mounting bolts.
FIG. 2-5A
Mounting bolts

Setup & Operation
Grinding Wheel Installation
Setup & Operation ISHdoc122007 2-7
2
2.5 Grinding Wheel Installation
Use a Wood-Mizer approved grinding wheel. To install:
1. Push the START button on the control box and turn the FEED RATE dial up to rotate the
cam.
2. Rotate the cam until the sharpener head is at its highest setting. Turn the FEED RATE all
the way down and push the STOP button.
3. Remove the grinding wheel cover.
4. Remove the nut and washer from the motor shaft.
5. Slide a grinding wheel onto the shaft.
6. Reinstall the washer and nut and hand tighten. Reinstall the cover.
DANGER! Make sure all guards and covers are in place
and secured before operating the wash station. Failure to
do so may result in serious injury.
7. After installing the grinding wheel, hold the sharpener head up with your hand and turn
the back/depth grind knob until you can lower the head and the grinding wheel will not
contact the blade. Carefully lower the sharpener head.
2.6 Blade Installation
1. Uncoil a blade and position inside the back support guides and between the guide posts
of the appropriate side guide assemblies.
2. Insert the blade between the blade wipers and the blade clamp.
3. Make any final adjustments to the support arms and guide assemblies to ensure the
blade band rests evenly on both the right and left blade clamp assembly pins. Make sure
the blade does not touch the bottom of either side guide assembly.
Make sure the guide assemblies lean slightly in the direction the blade travels through
them.

Setup & Operation
Face Grind Adjustment
2
2-8 ISHdoc122007 Setup & Operation
2.7 Face Grind Adjustment
As you operate the sharpener, the cam will rotate causing the index arm to contact a tooth
and push it to a position under the grinding wheel. The index arm can be adjusted to
leave the tooth closer to or further from the grinding wheel so the tooth face is ground
lighter or heavier.
1. Before adjusting the face grind, make sure the cam and grinder motors are off, the feed
rate dial is set at "0" and the Sharpener head is raised.
2. Back the depth stop knob out.
3. Turn on the cam motor and grinder motor. Slowly increase the FEED RATE until the next
tooth is underneath the grinding wheel.
4. Lower the Sharpener head and check to make sure the grinding wheel lightly contacts the
entire face of the tooth all the way up to the tip.
See Figure 2-6. If the face grind is too light, turn the face grind adjustment knob out away
from the other knob. If the face grind is too heavy, turn the adjustment knob in toward the
other knob.
5. Recheck the face grind on the next tooth and adjust as needed.
FIG. 2-6
CESH02
Face Grind
Adjustment Knob

Setup & Operation
Depth Grind Adjustment
Setup & Operation ISHdoc122007 2-9
2
2.8 Depth Grind Adjustment
Tooth height is determined by how much material is removed from the gullet of the blade.
The depth/back grind knob controls how far the grinding head comes down and therefore
controls the gullet grind.
1. With the feed rate at "0", turn on the cam and grinder motors.
2. Turn up the feed rate and check the depth grind. The grinding wheel should lightly touch
the gullet of the blade and you should see clean metal across the entire gullet of the
sharpened tooth.
3. If adjustment is needed, turn the depth stop knob. Turn the knob in to lower the head, out
to raise the head.
FIG. 2-6
CESH03
Depth/Stop Knob

Setup & Operation
Depth Grind Adjustment
2
2-10 ISHdoc122007 Setup & Operation
4. Recheck the depth grind.
5. Check the depth grind two to three times during the blade sharpening. Make sure you see
clean metal across the entire gullet of sharpened teeth each time. If you do not see clean
metal, stop the sharpener and adjust the depth grind as necessary.
IMPORTANT! After any adjustment, always restart the blade and sharpen in its entirety to
ensure symmetry.
NOTE: Depth grind may be affected as the grinding wheel passes over blade welds.

Setup & Operation
Oil Flow Adjustment
Setup & Operation ISHdoc122007 2-11
2
2.9 Oil Flow Adjustment
To start the oil flow, press the oil flow start switch.
2.10 Feed Rate Adjustment
The Feed Rate Dial controls cam speed. During the sharpening cycle, adjust cam speed
to have as fast of a feed rate as possible without "burning" the blade.
NOTE: All machines should be adjusted by maintenance to a maximum speed of 60 rev-
olutions per minute. See Section 4.2.
2.11 Blade Rejection
Sometimes blades cannot be resharpened. Reasons to reject blades for resharpening
include:
the blade is coil set (the blade is over-stressed and will fold on itself),
the blade is missing 2 or 3 teeth or more in a row,
the blade band has been twisted,
the blade band is too low for the grinder (the blade has been sharpened too many
times/too much material has already been ground from the blade),
the blade has no set on one of its sides,
severe rust is present,
or the blade has tooth spacing uncommon to Wood-Mizer blades (i.e., a competi-
tor’s blade).

Setup & Operation
Operation Overview
2
2-12 ISHdoc122007 Setup & Operation
2.12 Operation Overview
Use the following steps to guide you through sharpener operation.
1. Adjust the blade clamp for the blade you will be sharpening by in stalling the blade hieght
pins in the proper holes.
2. Install a grinding wheel if necessary, then install the blade.
3. Set the upper dial on the tooth counter for the number of teeth in the blade you will be
sharpening. Be sure to close the lower dial cover when done.
4. Adjust face grind and depth grind.
5. Push the tooth counter reset button to start the upper dial at "0".
6. Turn on the oil flow.
7. Increase the feed rate to a moderate speed. How fast you can grind will be determined by
how much material you are removing from the blade. If a heavy grind is required, it is best
to go around the blade lightly twice rather than try to grind heavily once.
8. Check the depth grind two to three times during the blade sharpening. Adjust as neces-
sary.
IMPORTANT! After any adjustment, always restart the blade and sharpen in its entirety to
ensure symmetry.
2.13 Shutoff
The sharpener will automatically shutoff when blade has been entirely sharpened.
Inspect the blade. Repeat sharpening process if necessary. Blades with a bad profile or
those which are badly in need of sharpening may have to be ground more than once.