woodmizer LT28 D19 Guida
WARNING! Read and understand this
manual before using this machine.
!
LT28 D19 Engine
Safety, Operation, Maintenance
& Parts Manual
038576 Engine, 19HP Deutz Diesel rev. C
Safety is our #1 concern!
Form #1351
Used with:
LT28D19 rev. A1.02 - A6.02
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©2023 Wood-Mizer LLC
Printed in the United States of America, all rights reserved. No part of this manual may be reproduced in any form by any
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written permission from
Wood-Mizer, LLC
8180 West 10th Street
Indianapolis, Indiana 46214
Table of Contents Section-Page
Table of Contents WM doc 12/7/23 iii
SECTION 1 OPERATION AND MAINTENANCE
1.1 Starting The Engine ............................................................................... 1-1
1.2 Safety ..................................................................................................... 1-1
1.3 Battery.................................................................................................... 1-2
1.4 Fuel Filter............................................................................................... 1-2
1.5 RPM Adjustments.................................................................................. 1-2
SECTION 2 REPLACEMENT PARTS
2.1 Fuel Tank ............................................................................................... 2-1
3.2 Engine Assembly ................................................................................... 3-1
3.3 Throttle/Clutch Assembly...................................................................... 3-3
Operation and Maintenance
Starting The Engine
1
1-1 WM doc 12/7/23 Operation and Maintenance
ABOUT THIS MANUAL
This manual is provided as a supplement to the equipment manufacturer’s manuals. This manual provides information spe-
cific to the use of this equipment on the Wood-Mizer® sawmill. Refer to the sawmill operator’s manual and manufacturer's
manual before attempting to operate this equipment.
NOTICE Read the sawmill operator’s manual and engine manufacturer’s manual for instructions
and safety precautions before operating this equipment.
The information and instructions given in this manual do not amend or extend the limited warranties for the equipment
given at the time of purchase.
SECTION 1 OPERATION AND MAINTENANCE
1.1 Starting The Engine
DANGER! Always be sure the blade is disengaged and clear the path of the blade before starting
the engine. Failure to do so will result in serious injury or death.
DANGER! Operate your engine/machine only in well ventilated areas.Exhaust gases can cause
nausea, delirium and potentially death unless adequate ventilation is present.
DANGER! Never operate an engine with a fuel or oil leak. The leaking fuel or oil could potentially
come in contact with hot surfaces and ignite into flames.
WARNING! Do not operate engine without proper and operational spark arrester/muffler. Sparks
emitted from the engine exhaust could ignite surrounding materials, causing serious injury or
death.
CAUTION! EPA Compliant Gas Tanks Only: Always relieve all fuel pressure inside the tank prior
to filling or connecting fuel fittings. Failure to do so may result in fuel spillage.
CAUTION! EPA Compliant Gas Tanks Only: Disconnect the fuel tank when not in use, or engine
flooding or fuel spillage may result
1. See the engine manufacturer’s manual for lubricating oil recommendations for specific temperature ranges.
2. Use #2 or better quality diesel fuel for above freezing starting. Use a #1 quality diesel fuel for below freezing starting.
3. Turn the key switch to the on (#1) position.
4. Turn the key switch to the start (#2) position and release.
ENGINE SHUTOFF
1. Disengage the clutch handle to stop the blade if necessary.
2. Turn the key switch to the off (#0) position.
Refer to the manufacturer’s manual for maintenance intervals and procedures unless otherwise instructed in this manual.
Follow the manufacturer’s recommendations for dusty conditions.
NOTICE This manual only provides information about additional procedures or procedures to be
performed at different time intervals than found in the manufacturer's manuals. Refer to the man-
ufacturer's manual for complete maintenance instructions.
1.2 Safety
Use caution when performing maintenance or service to the engine.
Maintenance
Battery 1
Maintenance WM doc 12/7/23 1-2
DANGER! Always be aware of and take proper protective measures against rotating shafts, pul-
leys, fans, etc.
Always stay a safe distance from rotating members and make sure that loose clothing or long
hair does not engage rotating members.
Never touch or perform service functions on a hot engine.
WARNING! Remove the blade before performing any engine service. Failure to do so may result
in serious injury.
Wear proper (eye, breathing, hand, and foot) safety equipment when performing service func-
tions.
Clean sawdust from all guards, vents, control boxes, or any area where sawdust may
gather after every shift. Failure to do so may result in fire, causing death or serious
injury.
1.3 Battery
Check the battery electrolyte level every 50 hours of operation. See manufacturer’s manual for instructions.
DANGER! Batteries expel explosive gases.
Keep sparks, flames, burning cigarettes, or other ignition sources away at all times.
Wear a face shield when working on batteries.
WARNING! Battery posts, terminals and related accessories contain lead and lead compounds.
Wash hands after handling.
1.4 Fuel Filter
Replace the fuel filter every 100 hours of operation or as required for engine performance.
1.5 RPM Adjustments
WARNING! Remove the blade before performing any engine service. Failure to do so may result
in serious injury.
1. Check the RPM with a tachometer every 200 hours of operation.
2. Before checking the RPM, make sure belt and brake strap tensions are correct (See Sawmill Maintenance).
3. Check oil, fuel, and coolant levels.
4. Check that the throttle cable does not affect the engine RPM when the clutch handle is disengaged.
5. Ensure the cable is not bent or kinked.
Engine High End RPM Low End RPM
D19 3600 1500
Replacement Parts
Fuel Tank
2
2-1 WM doc 12/7/23 Replacement Parts
SECTION 2 REPLACEMENT PARTS
2.1 Fuel Tank
REF PART # DESCRIPTION COMMENTS QTY.
038580 TRAY ASSEMBLY, LT28 DIESEL CAN 1
A12132 Tank Assembly, 5-Gallon Diesel Fuel 1
1P12166 Tank, 5-Gallon Diesel Fuel Available in assemblies only. 1
2P12172 Pickup, 9" Fuel 2
3P09683 Cap, 3 or 5-Gallon Fuel Tank 1
4P12175 Fitting, 1/4" NPT Plastic Female Disconnect 1
5P12176 Fitting, 1/4" NPT Plastic Male Disconnect 1
6015582 Fitting, Female Quick Disconnect Barb 1
7015583 Fitting, 1/4” NPT Male Quick Disconnect 1
8P642 Hose, 1/4” ID Fuel 5.5 Ft
1
2
3
4
8
9
10
10 10
5
11
12
13
14
15
16
17
280043-1B
6
7
Replacement Parts WM doc 12/7/23 2-2
Replacement Parts
Fuel Tank 2
9016338 Hose, 5/16” Fuel Line 8 Ft
10 P649 Clamp, 7/32 - 1/2 Hose 4
11 049137 Tray Weldment, LT28 Fuel 1
12 F05005-34 Bolt, 1/4-20 X 1” Carriage 2
13 F05010-21 Nut, 1/4-20 Swaged 2
14 P11258 Strap, 24 Rubber W/Hooks 2
15 F05007-87 Bolt, 3/8-16 x 1” Hex Head Grade 5 3
16 F05011-4 Washer, 3/8” Split Lock 3
17 F05011-3 Washer, 3/8” SAE Flat 3
REF PART # DESCRIPTION COMMENTS QTY.
Replacement Parts
Engine Assembly
3
3-1 WM doc 12/7/23 Replacement Parts
3.2 Engine Assembly
REF PART # DESCRIPTION COMMENTS QTY.
038576 ENGINE ASSEMBLY, LT28 19HP DIESEL 1
1049387 Engine, 19HP Deutz Diesel Available in assemblies only. 1
054911 Filter, Air #7700 175 180480 1
054912 Pump, Fuel #7700 6521 180420 1
054913 Filter, Oil #7700 217 52020 1
054914 Starter, Engine #7700 563 180540 1
054915 Shutdown, Engine #7700 674 180470 1
014209 Filter, Fuel 1
2F05015-7 Screw, #10-24 x 1/2” Self-Tapping 1
3038590 Deflector, 1 1/4” ID Exhaust D19 1
4047742 Sheave, 3V5.6 x 2-SH 1
5038432 Bushing, SH x 1 1/8” 1
6S04124 Key, 1/4” x 1 11/16” 1
7049399 Plate, Throttle D19 1
8049406 Cable, LT15/LT28 D19 1
9038584 Fitting, M14x1.5 Male-1/4 NPT Female 1
1
2
3
4
5
6
7
8
910
11
22
12
13
14
14
15
21
16
16
19
17
20
18
280043-3C
Replacement Parts WM doc 12/7/23 3-2
Replacement Parts
Engine Assembly 3
10 038571 Fitting, 1/4” NPT Male 90 Deg 3/8” NPT Fem 1
11 P10082 Hose, 3/8” NPT x 9 5/8” Rubber 1
12 P04332 Cap, 3/8 Pipe Galvanize 1
13 049389 Plate, Engine Mount D19 1
14 F05007-127 Bolt, 3/8-16 x 1 1/4” Carriage Gr5 8
15 F05011-3 Washer, 3/8” Flat SAE 4
16 F05010-10 Nut, 3/8-16 Hex Nylon Lock 8
17 038572 Plate, 1/4” Spacer D19 1
18 038573 Spacer, 13/32” ID x 1 1/4” OD x 1/4” 4
19 048237 SUPPORT WELDMENT, DRIVE BELT 1
20 F05007-118 BOLT, 3/8-16 X 3/4” HEX HEAD GRADE 5 1
21 F05010-19 NUT, 3/8-16 SELF-LOCKING HEX 1
22 047751 BELT, 2/3VFL900 DRIVE 1
REF PART # DESCRIPTION COMMENTS QTY.
Replacement Parts
Throttle/Clutch Assembly
3
3-3 WM doc 12/7/23 Replacement Parts
3.3 Throttle/Clutch Assembly
REF PART # DESCRIPTION COMMENTS QTY.
1065574 BLOCK WELDMENT, LINKAGE CLUTCH/BRAKE Replaces 049139 to make
clutch pivot stop adjustable
(Rev. A6.05). Tab on
Clutch/Brake Block Weldment
049139 modified to provide
increased brake adjustment and
reduce need for clutch turn-
buckle adjustment (Rev. A3.00).
1
2F05012-16 PIN, 3/16” X 1 1/4” ROLL 1
3016486 BUSHING, 5/8” ID X 7/8” OD X 1 1/4” LONG FL
BRONZE
2
4049340 SHAFT, LT28 THROTTLE 1
5034815 ACTUATOR WELDMENT, THROTTLE LT15D&G 1
6F05007-68 SCREW, 3/8-16 X 3/8” SOCKET HEAD CUP PT
SET
2
7034818 LINKAGE, THROTTLE LT15D&G 1
8F05005-15 BOLT, 1/4-20 X 1/2” HEX HEAD 1
9F05010-21 NUT, 1/4-20 SWAGED 1
10 P737 BUSHING, 1” X 1 1/4” X 3/4” FLANGED BRONZE 2
11 034608 PIVOT WELDMENT, CLUTCH/BRAKE 1
034605 LINKAGE ASSEMBLY, W/BEARING 1
12 034604 Boss Weldment, Clutch/Brake Linkage 1
13 016486 Bushing, 5/8” ID x 7/8” OD x 1 1/4” Long
Flanged Bronze
1
12
3
13
4
3
5
6
7
8
9
10
10
11
12
14
17
18 19
20
21
22
20
23
21
24
25
33
32
26
27
28
31
30 29
280059-1C
15
16
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