woodmizer LT30 User manual

Form 1220 Mechanical Board Return Retrofit doc091715 Page 1
FORM 1220
MECHANICAL BOARD RETURN RETROFIT
See Table 1. This optional mechanical board return can be installed to any 1997 and newer
model LT30, LT40, LT30HD or LT40HD. Use the appropriate kit depending on model, manufac-
turing date and clutch configuration as shown below.
Board Return Arm Installation
1. Raise the saw head so the area under the engine/motor can easily be accessed. Turn the key to
the OFF (#0) position and remove the key. Remove the blade from the sawmill if applicable
before proceding.
WARNING! Before performing service near moving parts such as blades,
pulleys, motors, belts and chains, first turn the key switch to the OFF (#0)
position and remove the key. If the key is turned on and moving parts acti-
vated, serious injury may result.
WARNING! Remove the blade before performing any service to the
engine or sawmill. Failure to do so may result in serious injury.
2. Autoclutch Option only: Remove the lower belt auxiliary guard plate from the saw head.
3. Manual Clutch only: Remove the lower drive belt guard from the saw head.
Model Model Year Revision Range Clutch MBR Kit
LT30
1997-06 F7.00 - J9.00 Manual 036667
Auto 036668
2007+ J9.01+ Manual 003266
Auto 003267
LT30HD
1997-06 G1.00 - K1.00 Manual 036667
Auto 036668
2007+ K1.01+ Manual 003266
Auto 003267
LT40
1997-06 F8.00 - K1.00 Manual 036667
Auto 036668
2007+ K1.01+ Manual 003268
Auto 003269
LT40HD
1997-06 G1.00 - K2.00 Manual 036667
Auto 036668
2007+ K2.01+ Manual 003268
Auto 003269

Page 2 doc091715 Form 1220 Mechanical Board Return Retrofit
4. Open the middle blade housing cover. Locate the four holes in the horizontal saw head tube (near
the motor mount plate).
See Figure 1. Position the board return arm assembly on the saw head, aligning the four
mounting holes. Be sure the arm is oriented pointing toward the front of the sawmill as shown.
Secure the board return arm to the saw head with the provided hex head bolts, flat washers and
lock nuts.
FIGURE 1
3/8-16 x 3"
Hex Head Bolt (4)
3/8" SAE Flat Washer (2)
3/8" Hex Nylon
Locknut (4)
3/8" x 1 1/4"
Washer (2)
Board Return Arm
3H0956-1

Form 1220 Mechanical Board Return Retrofit doc091715 Page 3
5. Manual Clutch only: Assemble the replacement lower belt guard parts with the provided hex
head bolts and flat washers.
See Figure 2. Install the guard assembly with the hardware removed with the old belt guard.
FIGURE 2
1/4-20 x ½"
Hex Head Bolt (2)
Lower Belt
Guard
Belt Guard
Mount
1/4" SAE Flat
Washers (2)
Bolts from old
guard (4)
3H0956-2B

Page 4 doc091715 Form 1220 Mechanical Board Return Retrofit
Board Return Table Installation (2007+ Sawmills)
1. Install the table at the front of the sawmill bed and secure with the hardware provided.
See Figure 3. Place the table assembly in position on the table mounting bracket at the front of
the sawmill bed. Secure with the hex head bolt, U-bolts, flat washers and lock nuts provided.
2. Install the provided safety decal on the control box cover where it can easily be seen during saw-
mill operation.
FIGURE 3
Board Return
Table Assembly
U-Bolt
Hex Head
Bolt
Flat Washer
Lock Nut
Table Mounting
Bracket
3H0976

Form 1220 Mechanical Board Return Retrofit doc091715 Page 5
Board Return Table Installation (1997 - 06 Sawmills)
1. Install the table at the front of the sawmill bed with the outrigger toward the loading side of the
sawmill.
See Figure 4. Be sure the edge of the table seats in the slot on the bed frame and the table tab
seats in the leg bracket. Lower the outrigger and adjust it until it is firmly planted on the ground.
Store the pins by placing one pin in the hole under the table. Loop the second pin through the
retainer of the first pin and lock.
2. Install the provided safety decal on the control box cover where it can easily be seen during saw-
mill operation.
FIGURE 4
Place table edge in provided
tabs and lower into operating
position.
3H0436

Page 6 doc091715 Form 1220 Mechanical Board Return Retrofit
Board Return Operation
DANGER! Keep all persons out of the path of returning boards.
Failure to do so will result in serious injury.
WARNING! The board return is intended to assist a second opera-
tor in removing boards quickly. Do not use the board return when
operating the sawmill alone. Serious injury, death or damage to the
equipment may result.
WARNING! Never use the board return table as a platform to stand
on. This table is designed and intended to assist in the removal of
boards only. Standing on the table may result in serious injury.
CAUTION! Do not use the board return to remove boards thicker
than 4/4 (1 1/8"). Damage to the feed motor may occur.
To activate the board return, remove the retaining pin from the board return storage pin. Remove
the pin to allow the arm to drop into its operating position. Return the storage pin to its original
location and secure with the retaining pin.
See Figure 5.
FIGURE 5
Retaining
Pin
Storage
Pin
Board Return Arm
3h0955

Form 1220 Mechanical Board Return Retrofit doc091715 Page 7
When the blade reaches the end of the log, the arm will drop down to catch the board and drag it
back toward the operator as the saw head is returned.
Boards may not always return in the same path or location. If a board returns in a manner that
does not allow the sawyer or off-bearer to maintain control, it may be necessary to stop the
reverse motion of the saw head.
When the board return is to be used, a second person is required to remove the board as it is
returned. DO NOT attempt to use the board return feature when sawing alone. Use of the board
return not recommended with material shorter than 8 foot.
To bypass the board return feature, remove the retaining pin from the board return storage pin.
Remove the storage pin and lift the board return arm to its storage position (hole in arm aligned
with holes in mounting bracket). Replace the storage pin and secure with the retaining pin.
1997 - 06 Sawmills Only: Before towing the sawmill, place the board return table in its storage
position at the rear of the sawmill and secure with both locking pins. Adjust the outrigger leg up to
provide proper ground clearance when towing the sawmill.
CAUTION! To avoid damage to the board return table, secure it in
its storage location before towing the sawmill.
See Figure 6.
FIGURE 6
Secure table in
storage position
with retaining pins
3H0435-1

Page 8 doc091715 Form 1220 Mechanical Board Return Retrofit
Board Return Maintenance
Lubricate the optional board return pivot every fifty hours of operation with a NLGI No. 2 grade
lithium grease. Apply grease to the grease fitting on the board return pivot tube.
Board Return Replacement Parts (2007+ Sawmills)
REF DESCRIPTION (Indicates Parts Available In Assemblies Only) PART # QTY.
RETURN RETROFIT, NON-SUPER BOARD (MANUAL CLUTCH, LT30) 003266 1 1
RETURN RETROFIT, NON-SUPER BOARD (MANUAL CLUTCH, LT40) 003268 1 1
RETURN RETROFIT, NON-SUPER BOARD (AUTOCLUTCH, LT30) 003267 1
RETURN RETROFIT, NON-SUPER BOARD (AUTOCLUTCH, LT40) 003269 1
Return Assembly, Optional Non-Super Board 036693 1
1Mount Weldment, Board Return 036691 1
2Bolt, 3/8-16 x 3” Full Thread Hex Head F05007-1 4
3Washer, 1/8” x 1 1/4” 015336 2
4Nut, 3/8-16 Hex Nylon Lock F05010-10 4
50
1
2
3
4
5
5
6
7
14
9
10
11
12
13
8
15
16 17
18
19
20
22
21
23
SM0331C
MBR-M30/M40 Only
4
2

Form 1220 Mechanical Board Return Retrofit doc091715 Page 9
5Washer, 3/8” Flat F05011-3 5
6Pin Weldment, Board Return Arm Support 036692 1
7Fitting, 1/4-28 Grease P05060 1
8Pin, 3/16 x 1 1/4” Roll F05012-16 1
9Washer, 5/8” x 15/16” x .094 Nylon F05011-19 2
10 Arm Weldment, Board Return 015210 1
11 Washer, 3/8” Split F05011-4 3
12 Bolt, 3/8-16 x 1” Hex Head F05007-7 3
13 Bracket Weldment, Board Return 015652 1
14 Rod Kit, Board Return Replacement Pivot 016272 1
Rod, 5/8” x 7 5/8” 015225 1 
15 Pin, 3/16” Retaining w/Chain 017604 1
16 Board Return Table Parts (SEE BOARD RETURN TABLE REPLACEMENT PARTS (2007+ SAWMILLS))
17 Decal, Board Return Warning 016072 1
Parts Listed Below Included in kits for Sawmills with Manual Clutch Lever Only:
18 Guard Weldment, Clutch Handle 006026 1 1
19 Mount Weldment, Clutch Handle Guard 006025 1 1
20 Bolt, 1/4-20 x 1/2” Hex Head F05005-15 2
21 Washer, 1/4” SAE Flat F05011-11 2
22 Plate, LT40 Belt Guard Cover 074752 2 1
23 Bolt, 1/4-20 x 3/4" Hex Head w/Conical Washer F05005-134 2
1 Kits for sawmills with manual clutch handle updated with new guard and guard mount to accommodate new blade guide design avail-
able 2/08. 006026 Guard Weldment & 006025 Guard Mount Weldment replace 015657 & 015678.
2 Added to cover access opening cut in guard weldment to check belt tension (9/15).

Page 10 doc091715 Form 1220 Mechanical Board Return Retrofit
Board Return Replacement Parts (1997 - 06 Sawmills)
REF DESCRIPTION (Indicates Parts Available In Assemblies Only) PART # QTY.
RETURN RETROFIT, NON-SUPER BOARD (MANUAL CLUTCH) 036667 1 1
RETURN RETROFIT, NON-SUPER BOARD (AUTOCLUTCH) 036668 1
Return Assembly, Optional Non-Super Board 036693 1
1Mount Weldment, Board Return 036691 1
2Bolt, 3/8-16 x 3” Full Thread Hex Head F05007-1 4
3Washer, 1/8” x 1 1/4” 015336 2
4Nut, 3/8-16 Hex Nylon Lock F05010-10 4
5Washer, 3/8” Flat F05011-3 5
6Pin Weldment, Board Return Arm Support 036692 1
7Fitting, 1/4-28 Grease P05060 1
8Pin, 3/16 x 1 1/4” Roll F05012-16 1
9Washer, 5/8” x 15/16” x .094 Nylon F05011-19 2
10 Arm Weldment, Board Return 015210 1
11 Washer, 3/8” Split F05011-4 3
12 Bolt, 3/8-16 x 1” Hex Head F05007-7 3
1
2
3
4
5
5
6
714
9
10
11
12
13
8
15
16 17
18
19
20
23
21
22
3H0953C
MBR-M Only
4
2