woodmizer LT60 User manual

Debarker Option
Safety, Installation, Operation,
Maintenance & Parts Manual
MKIII for LT60/70 AC rev. A.00 - A.04
(Except LT70 Super Sawmills*)
*See Operator’s and Parts Manuals for Debarker Information
Safety is our #1 concern! Read and understand
all safety information and instructions before oper-
ating, setting up or maintaining this machine.
January 2016
Form #2090

©2019
Printed in the United States of America, all rights reserved. No part of this man-
ual may be reproduced in any form by any photographic, electronic, mechanical
or other means or used in any information storage and retrieval system without
written permission from
Wood-Mizer
8180 West 10th Street
Indianapolis, Indiana 46214
California
Proposition 65 Warning
WARNING: Breathing gas/diesel engine exhaust exposes you to chemicals known to
the State of California to cause cancer and birth defects or other reproductive harm.
xAlways start and operate the engine in a well-ventilated area.
xIf in an enclosed area, vent the exhaust to the outside.
xDo not modify or tamper with the exhaust system.
xDo not idle the engine except as necessary.
For more information go to www.P65warnings.ca.gov.
WARNING: Drilling, sawing, sanding or machining wood products can expose you to
wood dust, a substance known to the State of California to cause cancer. Avoid inhaling
wood dust or use a dust mask or other safeguards for personal protection.
For more information go to www.P65Warnings.ca.gov/wood.

Table of Contents Section-Page
Table of Contents WMdoc032619 iii
TOC
SECTION 1 SAFETY 1-1
1.1 Installation and Maintenance..................................................................1-1
1.2 Operation and Towing............................................................................1-2
SECTION 2 DEBARKER INSTALLATION 2-1
2.1 Debarker Installation ..............................................................................2-1
2.2 Harness Installation ................................................................................2-5
2.3 Control Component Installation .............................................................2-9
SECTION 3 ALIGNMENT 3-1
SECTION 4 OPERATION AND MAINTENANCE 4-1
4.1 Travel Lock Pin (Rev. A.04+)................................................................4-1
4.2 Travel Lock Pin Operation (Prior to Rev. A.04)....................................4-1
4.3 Control Overview ...................................................................................4-3
4.4 Operation ................................................................................................4-4
4.5 Maintenance ...........................................................................................4-6
4.6 Troubleshooting......................................................................................4-8
SECTION 5 ELECTRICAL INFORMATION 5-1
5.1 Electrical Symbol Diagram (Non-Remote) ............................................5-1
Low Voltage .........................................................................5-1
High Voltage .........................................................................5-2
5.2 Electrical Symbol Diagram (Remote) ....................................................5-3
Low Voltage .........................................................................5-3
High Voltage .........................................................................5-4
5.3 Electrical Component List......................................................................5-5
5.4 Electrical Wiring Diagram (non-Remote Sawmills) ..............................5-6
Low/High Voltage .................................................................5-6
5.5 Electrical Wiring Diagram (Remote Sawmills) .....................................5-7
Low/High Voltage .................................................................5-7
5.6 Electrical Wiring Diagram (AC Wireless Sawmills) .............................5-9
Low/High Voltage .................................................................5-9
SECTION 6 DEBARKER PARTS 6-1
6.1 Mechanical Assembly (AC) ...................................................................6-2
6.2 Frame Assembly (AC)............................................................................6-3
6.3 In/Out Motor Drive Assembly................................................................6-5
6.4 Blade Motor Assembly (AC)..................................................................6-7
6.5 Blade Housing Assembly .......................................................................6-8
6.6 Debarker Control Assembly ...................................................................6-9
INDEX I

Safety
Installation and Maintenance
1
1-1 MK60ACDB01doc032619 Safety
SECTION 1 SAFETY
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!
1.1 Installation and Maintenance
DANGER! On electric mills, hazardous voltage inside the
disconnect box, starter box, and at the electric motor can
cause shock, burns, or death. Disconnect and lock out
power supply before performing debarker installation! Fol-
low all applicable electrical codes.
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.
Failure to do so will result in serious injury or death.
DANGER! Before performing any service to this equip-
ment, turn the key to the OFF position, remove the key, and
disconnect the sawmill battery ground terminal. Failure to
do so will result in serious injury or death.
WARNING! Before replacing the debarker blade, move the
sawmill blade guide arm in front of the sawmill blade to
cover the blade teeth. Failure to do so may result in serious
injury or death.

Safety
Operation and Towing
Safety MK60ACDB01doc032619 1-2
1
1.2 Operation and Towing
DANGER! Make sure all guards and covers are in place
and secured before operating the debarker option. Failure
to do so may result in serious injury.
DANGER! Keep all persons out of the path of moving
equipment when operating the debarker. Failure to do so
will result in serious injury.
DANGER! Always remove the key from the control panel
before preparing the debarker for towing. Failure to do so
may result in serious injury.
WARNING! Debarker is ON when warning light is on. DO
NOT disconnect the warning light. Doing so may result in
serious injury.
WARNING! If the debarker continues to run with the key
switch in the OFF position, remove the negative battery ter-
minal from the battery post.
DO NOT continue to operate the mill if the main key switch
does not control debarker operation. Doing so could result
in serious injury. Call Wood-Mizer customer service for
more information.

Debarker Installation
Debarker Installation
2
2-1 MK60ACDB01doc032619 Debarker Installation
SECTION 2 DEBARKER INSTALLATION
DANGER! On electric mills, hazardous voltage inside the
disconnect box, starter box, and at the electric motor can
cause shock, burns, or death. Disconnect and lock out
power supply before performing debarker installation! Fol-
low all applicable electrical codes.
DANGER! Before performing any service to this equip-
ment, turn the key to the OFF (0) position, remove the key,
and disconnect the sawmill battery ground terminal. Failure
to do so will result in serious injury or death.
CAUTION! Due to various design changes and past retro-
fits and options, you should very carefully look your mill
over to determine Debarker compatibility before beginning
Debarker installation.
2.1 Debarker Installation
DANGER! Always disengage the blade and shut off the
sawmill engine before installing the debarker. Failure to do
so will result in serious injury.
IMPORTANT! Sawmills are equipped with pre-drilled
Debarker mounting holes. Verify hole locations before
beginning Debarker installation. Proper hole location is
imperative for safe and effective Debarker operation.

Debarker Installation
Debarker Installation
Debarker Installation MK60ACDB01doc032619 2-2
2
See Figure 2-1. The debarker wiring is pre-routed and secured at the debarker mounting
location with a guard. Remove the guard and route the wiring through the grommet in the
saw head. Note the location of the two debarker mounting holes.
1. Assemble the debarker to the sawmill saw head. Align the mounting block holes and the
two debarker mounting holes in the saw head. Use the provided 1/2-13 x 4" hex head
bolts and 1/2" split lock washers to secure in place. Make sure the debarker is square to
the saw head before tightening.
2. Assemble the debarker cutting head to the mount plate on the frame.
Use the four provided 5/16-18 x 3/4" bolts and 5/16” split lock washers to mount the cut-
ting head to the debarker frame. Use the lower set of four holes in the head mounting
plate. The upper set of holes are provided in the event the cutting head needs to be
adjusted further down than the slotted motor mount holes will allow.
See Figure 2-2.
FIG. 2-1
Remove Debarker
Wiring Storage Box
From Saw Head
Route Debarker
Wiring Through
Grommet
Debarker
Mounting
Holes
600152-1

Debarker Installation
Debarker Installation
2
2-3 MK60ACDB01doc032619 Debarker Installation
3. Install the blade guard bracket and flexible debris guard to the debarker head with two
1/4" flat washers, lock washers, and 1/4-20 x 1" hex head bolts. Be sure the bottom of the
debris guard is even with the bottom of the debarker blade.
See Figure 2-3.
FIG. 2-2 AC DEBARKER
5/16-18 x 3/4"
Hex head bolts (4)
5/16" Lock washers (4)

Debarker Installation
Debarker Installation
Debarker Installation MK60ACDB01doc032619 2-4
2
FIG. 2-3 AC DEBARKER
Debris
Guard
Guard
Bracket
1/4-20 x 1" Hex
head bolt (2)
1/4" Lock
washer (2) 1/4" Flat
washer (2)
600106
Adjust bottom of debris guard
even with bottom of debarker blade

Debarker Installation
Harness Installation
2
2-5 MK60ACDB01doc032619 Debarker Installation
2.2 Harness Installation
DANGER! On electric mills, hazardous voltage inside the
disconnect box, starter box, and at the electric motor can
cause shock, burns, or death. Disconnect and lock out
power! Follow all applicable electrical codes.
IMPORTANT! Avoid pinch and pivot points, unnecessary
wire bending and open spaces where the wire could get
caught by a log, etc. If you have any questions, call
Wood-Mizer customer service.
4. Route the black wires from both the motor and warning light harnesses through one of the
rubber boots and the red motor and light wires through the other rubber boot.
5. Connect the red motor and light wires to the left motor terminal and replace the terminal
nut to secure the wires. Reference figure 2-6.
1. IMPOInstall the supplied wire harness to the debarker motor junction box. Insert the end
of the harness with bare wire ends through the hole in the bottom of the debarker motor
junction box and secure with the harness connector. Leave approximately 1/2" of harness
conduit past the connector.
See Figure 2-4.
FIG. 2-4
1/2"
Harness
Light
Harness
Connector
Junction Box
(See Detail)
Debarker
Motor
600479-11
DETAIL
GND Green
J1Blue
T1 Black
T2 Black
T3 Black
H1 Blue
Red
Black
H2 Blue
J2 Blue

Debarker Installation
Harness Installation
Debarker Installation MK60ACDB01doc032619 2-6
2
2. Connect the harness wires to the corresponding debarker motor wires, matching the wire
labels as shown. Connect the green GND wire to the ground terminal in the motor junc-
tion box.
3. Route the harness through the hole in the saw head. Locate the two-wire harness sup-
plied with the sawmill for the debarker in/out motor. This harness is bundled with other
harnesses underneath the sawmill motor. Route the two-wire harness through the hole in
the saw head, toward the debarker. Connect the harness to the debarker in/out motor
connector.
See Figure 2-5.
4. Continue routing the large harness from the debarker motor under the sawmill motor,
toward the electrical control cabinet. Remove the plug from the hole in the bottom of the
cabinet and push the harness up into the box. Secure the harness to the cabinet hole with
the provided connector, leaving approximately 1/2" of harness conduit past the connector.
FIG. 2-5
Secure In/Out Motor
Wires with Wire Ties
Blade Motor
Wires
Warning Light
Wires
Connect In/Out Motor Cable
To Debarker Harness
600479-12

Debarker Installation
Harness Installation
2
2-7 MK60ACDB01doc032619 Debarker Installation
Use the provided wire tie to secure the harness to existing harnesses under the sawmill
motor.
5. In the control cabinet, remove the wireway covers and route the harness wires to the
appropriate components.
See Figure 2-6. Only wires listed above are shown.
6. Connect the black T1, T2, and T3 wires to the corresponding terminals on the contactor
labeled 4M at the top-right corner of the cabinet.
7. Connect the green GND wire to the grounding terminal at the top-left of the control cabi-
net.
8. Connect the blue H1 wire to the A1 terminal of the 4M contactor.
9. Connect the blue J2 and H2 wires to the A2 terminal of the 4M contactor.
FIG. 2-6
4M
T1 T2 T3
A2
A1
Black T1 Black T2 Black T3
B
l
u
e
H
1
B
l
u
e
H
2
B
l
u
e
J
2
Green GND
Blue J1
1
2
3
4
5
6
7
8
Route wires through
control cabinet
wireways
Contactor 4M
(See Detail #1)
Terminal Block #8
(See Detail #2)
DETAIL #1
DETAIL #2
Ground Stud
600176-1
Route harness through
bottom of control cabinet
and secure with connector

Debarker Installation
Harness Installation
Debarker Installation MK60ACDB01doc032619 2-8
2
10. Connect the blue J1 wire to empty side of terminal block #8. Replace the wireway covers.

Debarker Installation
Control Component Installation
2
2-9 MK60ACDB01doc032619 Debarker Installation
2.3 Control Component Installation
DANGER! On electric mills, hazardous voltage inside the
disconnect box, starter box, and at the electric motor can
cause shock, burns, or death. Disconnect and lock out
power! Follow all applicable electrical codes.
DANGER! Before performing any service to this equip-
ment, turn the key to the OFF (0) position, remove the key,
and disconnect the sawmill battery ground terminal. Failure
to do so will result in serious injury or death.
See SECTION 4 for the appropriate wiring diagram to aid in installation.
1. Remove the side, front and rear panels (leave wire connections) from the control box.
2. Remove the two small bolts and nuts from the back of the control box.
3. Install the provided 15 amp breaker to the two small holes in the back of the control box
(position the breaker so the reset tab is near the rear opening of the control box). Use the
existing screws and nuts (removed earlier) to secure in place.
See Figure 2-7.
FIG. 2-7
15 Amp Breaker
Mounting Screws
Mounting Nuts
3H0587-1

Debarker Installation
Control Component Installation
Debarker Installation MK60ACDB01doc032619 2-10
2
4. Using the back side of the front panel for a guideline, cut out holes in the front panel lexan
decal for the debarker switches. Install the provided toggle switches, 1/16" nylon wash-
ers, and rubber boots in place as shown.
See Figure 2-8.
FIG. 2-8
3H0380B
On/Off Switch
In/Out Switch
Rubber Boots
Nylon Washers

Debarker Installation
Control Component Installation
2
2-11 MK60ACDB01doc032619 Debarker Installation
5. Connect the red #205 wire from the 15 amp breaker to the ACC post on the key switch.
6. Make sure the red #206 wire from the 15 amp breaker to the debarker in/out switch is
connected.
7. Connect the red #208 wire from the debarker on/off switch to the DBKR terminal on the
LED board. NOTE: If the control box is not equipped with the LED board, remove the red
#208 wire from the debarker on/off switch.
8. Connect the red #200 wire from the on/off switch to terminal #3 of the existing relay
socket in the control box.
See Figure 2-9. Box housing removed for clarity. Only wires referred to above are shown.
FIG. 2-9
Key
Switch
Debarker
On/Off
Switch
Debarker In/Out
Switch
Relay
Socket
15 Amp
Circuit Breaker
LED
Circuit
Board
600009-2
205
206
208
200

Debarker Installation
Control Component Installation
Debarker Installation MK60ACDB01doc032619 2-12
2
9. Connect the black #207 wire from the debarker in/out switch to the rear ground stud.
10. Locate the bundle of wires on the floor of the sawmill control box. Make sure the debarker
in/out switch is oriented horizontally as shown.
11. Connect the small red #21 wire to the debarker in/out switch bottom left terminal.
12. Connect the small black #22 wire to the debarker in/out switch top left terminal.
13. Connect wire #33 (blue on non-remotes, red on remotes) to the bottom debarker on/off
switch terminal.
See Figure 2-10. Box housing removed for clarity. Only wires referred to above are
shown.
14. Reinstall the front and rear panels, side panel, and control box top cover to the control
box.
FIG. 2-10
Debarker
On/Off
Switch
Debarker In/Out
Switch
Ground Stud
600009-3
207
22
21
33

Debarker Installation
3
3-1 MK60ACDB01doc032619 Debarker Installation
SECTION 3 ALIGNMENT
DANGER! Before performing any service to this equip-
ment, turn the key to the OFF (0) position and remove the
key. Failure to do so will result in serious injury or death.
The debarker blade should be aligned to the sawmill blade to insure proper operation.
The debarker blade should be parallel with and aligned vertically with the sawmill blade.
1. Turn the key to ACC (3) and use the debarker in/out switch to move the debarker all the
way in. Turn the key to OFF (0) and remove the key. This will prevent the debarker from
being turned on while performing alignment procedures.
2. Check the squareness of the debarker with the sawmill blade. Adjust the debarker
mounts if necessary until the debarker is square with the sawmill blade.
Loosen the bottom debarker mounting bolt and loosen the jam nuts on the adjustment
bolts. Turn the adjustment bolts as necessary until the debarker is square with the saw-
mill blade. Retighten the jam nuts and bottom debarker mounting bolt.
See Figure 3-1.
FIG. 3-1
600480-1
Loosen bottom
mounting bolt
Loosen jam nuts and adjust bolts
to square debarker with sawmill blade

Debarker Installation
Debarker Installation MK60ACDB01doc032619 3-2
3
3. Clip the blade guide alignment tool to the sawmill blade. Make sure the tool lies flat on the
blade and does not contact a tooth that could cause it to angle.
See Figure 3-2.
4. Check the height of the debarker blade against the alignment tool. The bottom edge of
the tool should align with the center of the debarker blade.
5. Insert the key and use the debarker in/out switch to move the debarker all the way out.
Turn the key to OFF (0) and remove the key.
6. Move the blade guide alignment tool on the sawmill blade and check the position of the
debarker blade against the tool. If the debarker blade is not centered with the tool, read-
just the debarker mounting bolts to adjust the debarker assembly parallel to the blade.
FIG. 3-2
600480-2B
½ Debarker
blade thickness
Sawmill
blade
Alignment tool
Debarker
blade
Loosen motor
mounting bolts (4)
Loosen jam nut
Adjust bolt to move
motor and blade up or down

Operation and Maintenance
Travel Lock Pin (Rev. A.04+)
4
4-1 MK60ACDB01doc032619 Operation and Maintenance
SECTION 4 OPERATION AND MAINTENANCE
4.1 Travel Lock Pin (Rev. A.04+)
See Figure 4-1. The debarker is equipped with a travel lock pin. Insert the lock pin to lock
the debarker in place when towing the sawmill. Remove the lock pin to unlock the
debarker while the debarking is required during sawing.
Before operating the debarker, make sure the lock pin is secured in its travel position.
Turn the key switch to OFF (0) and remove the key. Pull the debarker out to relieve pres-
sure on the lock pin. Remove the lock pin.
Before towing the sawmill, lock the debarker in the travel position. Turn the key switch
to ACC (3) and use the debarker in/out switch to move the debarker all the way in. Turn
the key to OFF (0) and remove the key. Push the debarker in until the travel position holes
align. Insert the lock pin.
To move the debarker out of the way during sawing, turn the key switch to ACC (3)
and use the debarker in/out switch to move the debarker all the way out.
4.2 Travel Lock Pin Operation (Prior to Rev. A.04)
See Figure 4-2. The debarker is equipped with a locking pin located where the debarker
frame pivots in the mounting blocks. One hole location is provided for the locking pin.
Turn the locking pin to the left to lock the debarker in place when towing the sawmill. Turn
the locking pin to the right to unlock the debarker while the debarking is required during
sawing.
FIG. 4-1
600478-10