Tar River DLT Series User manual

Rev. 11/21
Sub-Compact Rotary Tiller
DLT & DLT-S Series
Operator’s Manual

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Sub-Compact Rotary Tiller DLT & DLT-S Series
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Sub-Compact Rotary Tiller DLT & DLT-S Series
TO THE DEALER:
Assembly and proper installation of this product is the responsibility of the Tar River dealer. Read manual in-
structions and safety rules. Make sure all items on the Dealer’s Pre-Delivery and Delivery Check Lists in the
Owner’s/Operator’s Manual are completed before releasing equipment to the owner.
TO THE OWNER:
Read this manual before operating your Tar River equipment. The information presented will prepare you to
do a better and safer job. Keep this manual handy for ready reference. Require all operators to read this manual
carefully and become acquainted with all the adjustment and operating procedures before attempting to oper-
ate. Replacement manuals can be obtained from your selling dealer. The equipment you have purchased has
been carefully engineered and manufactured to provide dependable and satisfactory use. Like all mechanical
products, it will require cleaning and upkeep. Lubricate the unit as specified. Observe all safety information in
this manual and safety decals on the equipment. For service, your authorized Tar River dealer has trained me-
chanics, genuine Tar River service parts, and the necessary tools and equipment to handle all your needs. Use
only genuine Tar River service parts. Substitute parts will void the warranty and may not meet standards re-
quired for safe and satisfactory operation.
Record your implement model and serial number in the space provide below. Your dealer will need this infor-
mation to give you prompt, efficient service.
Model Number: ______________________________________
Serial Number: _______________________________________
Date Purchased: ______________________________________

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Sub-Compact Rotary Tiller DLT & DLT-S Series
Table of Contents
Introduction …………………………………………………………………………………………….. 5
Technical Specifications ……………………………………………………………………………….. 5
Safety …………………………………………………………………………………………………… 6
Safety Signal Words ……………………………………………………………………………………. 6
General Safety Guidelines ……………………………………………………………………………… 7
Safety Decal Care ………………………………………………………………………………………. 7
Before Operation ……………………………………………………………………………………….. 8
During Operation ……………………………………………………………………………………….. 9
Highway And Transport Operations …………………………………………………………………… 10-11
Operating Instructions…………………………………………………………………………………... 12-14
Maintenance ………...………………………………………………………………………………….. 14
Torque Specifications ………………………………………………………………………………….. 15
Parts Breakdown ……………………………………………………………………………………….. 17-26
Warranty ………………………………………………………………………………………………... 27

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Sub-Compact Rotary Tiller DLT & DLT-S Series
Introduction
Thank you for purchasing your DLT Series Rotary Tiller. Specifically designed and engineered for sub-
compact tractors in the 15-25 Horse power range. The Tar River DLT Series Rotary Tiller is built with 4
blades per flange and a sturdy #80 chain drive system to give you years of reliable service. A Slip Clutch PTO
protect comes standard.
Available in 42” and 50” working widths. The Tar River DLT Series Rotary Tiller is perfect for all your small-
tractor tilling needs.
Technical Specifications
• #80 Chain drive transmission
• 4 Blades per flange
• PTO with slip-clutch protection
• Solid A-frame
• Side shift standard
DLT-42 DLT-50
Weight
Shipping weight
304 lbs.
375 lbs.
348 lbs.
429 lbs.
Working width 42” 50”
Blades per flange 44
Chain drive #80 #80
HP 15-25 15-25
PTO driveline Series 4 S/C Series 4 S/C
Working width 55” 78”

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Sub-Compact Rotary Tiller DLT & DLT-S Series
Important Safety Information
Safety
It is important that you read the entire manual and to become familiar with this product before you begin using
it. This product is designed for certain applications only. The manufacturer cannot be responsible for issues
arising from modification. We strongly recommend this product not be modified and /or used for any applica-
tion other than that for which it is designed. If you have any questions relative to a particular application, DO
NOT use the product until you have first contacted us to determine if it can or should be performed on the
product.
Read and understand this manual and all safety signs before operating and maintaining . Review the safety in-
structions and precautions annually.
Safety Signal Words
TAKE NOTE! This safety alert symbol found though out this manual is used to call you attention to in-
structions involving you personal safety and the safety of others. Failure to follow these instructions can
result in injury or death.
This symbol means:
Attention!
Become alert!
Your safety is involved!
Note the use of the signal words, DANGER, WARNING and CAUTION with the safety messages.
The appropriate signal word for each has been selected using the following guidelines:
DANGER: Indicates an imminently hazardous situation that, if not avoided, will result in death or
serious injury. This signal word is to be limited to the most extreme situations typically for machine
components which, for functional purposes, cannot be guarded.
WARNING: Indicates a potentially hazardous situation that, if not avoided, could result in death or
serious injury, and includes hazards that are exposed when guards are removed. It may also be used
to alert against unsafe practices.
CAUTION: Indicates a potentially hazardous situation that, if not avoided, may result in minor or
moderate injury. It may also be used to alert against unsafe practices.

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Sub-Compact Rotary Tiller DLT & DLT-S Series
Important Safety Information
General Safety Guidelines
Safety of the operator is one of the main concerns in designing and developing a new piece of equipment. De-
signers and manufacturers build in as many safety features as possible. However, every year many accidents
occur which could have been avoided by a few seconds of thought and a more careful approach to handling
equipment. You, the operator, can avoid many accidents by observing the following precautions in this section.
To avoid personal injury, study the following precautions and insist those working with you, or for you, follow
them.
Replace any DANGER, WARNING, CAUTION or instruction safety decal that is not readable or is missing.
Location of such decals are indicated in this manual. Do not attempt to operate this equipment under the influ-
ence of drugs or alcohol.
Review the safety instructions with all users annually.
This equipment is dangerous to children and persons unfamiliar with its operation. The operator should be a
responsible adult familiar with farm machinery and trained in this equipment’s operations. Do not allow per-
sons to operate or assemble this unit until they have read this manual and have developed a thorough
understanding of the safety precautions and of how it works.
To prevent injury of death, use a tractor equipped with a Roll Over Protection System (ROPS). Do not paint
over, remove or deface any signs or warning decals on your equipment. Observe all safety signs and practice
the instructions on them.
Never exceed the limits of a piece of machinery. If its ability to do a job, or to do so safely, is in question -
Don’t try it!
• Keep safety signs clean and legible at all times.
• Replace safety signs that are missing or have become illegible.
• Replaced parts that displayed a safety sign should also display the current safety sign
• Safety signs are available from your Distributor or Dealer Parts Department or the factory.
Safety Decal Care

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Sub-Compact Rotary Tiller DLT & DLT-S Series
Important Safety Information
How to install Safety Signs:
• Be sure that the installation area is clean and dry.
• Decide on the exact position before you remove the backing paper.
• Remove the smallest portion of the split backing paper.
• Align the decal over the specified area and carefully press the small portion with the exposed sticky back-
ing in place.
• Slowly peel back the remaining paper and carefully smooth the remaining portion of the decal in place.
• Small air pockets can be pierced with a pin and smoothed out using the piece of decal backing paper.
• Carefully study and understand this manual.
• Do not wear loose-fitting clothing, which may catch in moving parts.
• Always wear protective clothing and substantial shoes.
• Assure that all tires are inflated evenly.
• Give the unit a visual inspection for any loose bolts, worn parts or cracked welds, and make necessary re-
pairs. Follow the maintenance safety instructions included with this manual.
• Be sure that there are no tools lying on or in the equipment.
• Do not use the unit until you are sure that the area is clear, especially of children and animals.
• Don’t hurry the learning process or take the unit for granted. Ease into it and become familiar with your
new equipment.
• Practice operation of your equipment and its attachments. Completely familiarize yourself and other opera-
tors with its operation before using.
• Use a tractor equipped with a Roll Over Protection System (ROPS) and fasten your seat belt prior to start-
ing engine.
• The manufacturer does not recommend usage of tractor with ROPS removed.
• Move tractor wheels to the widest recommended settings to increase stability.
• Securely attach to towing unit. Use a high strength, appropriately sized hitch pin with a mechanical retainer
and attach safety chain.
• Do not allow anyone to stand between the tongue or hitch and the towing vehicle when backing up to the
equipment.
• Do not use the unit until you are sure that the area is clear, especially of children and animals.
Before Operation

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Sub-Compact Rotary Tiller DLT & DLT-S Series
Important Safety Information
• Children should not be allowed on the product.
• Clear the area of small children and bystanders before moving the feeder.
• If using a towing unit, securely attach feeder by using a hardened 3/4” pin, a metal retainer, and safety
chains if required. Shift towing unit to a lower gear before going down steep downgrades, thus using the
engine as a retarding force. Keep towing vehicle in gear at all times. Slow down for corners and rough ter-
rain.
• Make sure you are in compliance with all local and state regulations regarding transporting equipment on
public roads and highways. Lights and slow moving signs must be clean and visible by overtaking or on-
coming traffic when feeder in transported.
• Beware of bystanders, particularly children! Always look around to make sure that it is safe to start the
engine of the towing vehicle or move the unit. This is particularly important with higher noise levels and
quiet cabs, as you may not hear people shouting.
• NO PASSENGERS ALLOWED! Do not carry passengers anywhere on, or in, the tractor or equipment,
except as required for operation.
• Keep hands and clothing clear of moving parts.
• Do not clean, lubricate or adjust your equipment while it is moving.
• When halting operation, even periodically, set the tractor or towing vehicle brakes, disengage the PTO,
shut off the engine and remove the ignition key.
• Be especially observant of the operating area and terrain. Watch for holes, rocks or hidden hazards. Always
inspect the area prior to operation.
• DO NOT operate near the edge of drop-offs or banks.
• DO NOT operate on steep slopes as overturns may result.
• Operate up and down (not across) intermediate slopes. Avoid sudden starts and stops.
During Operation

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Sub-Compact Rotary Tiller DLT & DLT-S Series
Important Safety Information
• Adopt safe driving practices.
• Keep the brake pedals latched together at all times. Never use independent braking with machine in tow
as loss of control and/or upset of unit can result.
• Always drive at a safe speed relative to local conditions and ensure that your speed is low enough for an
emergency stop to be safe and secure. Keep speed at a minimum.
• Reduce speed prior to turns to avoid the risk of overturning.
• Avoid sudden uphill turns on steep slopes.
• Always keep the tractor or towing vehicle in gear to provide engine braking when going downhill. Do not
coast.
• Do not drink and drive!
• Comply with state and local laws governing highway safety and movement of farm machinery on public
roads.
• Use approved accessory lighting flags and necessary warning devices to protect operators of other vehicles
on the highway during daylight and nighttime transport. Various safety lights and devices are available
from your dealer.
• The use of flashing amber lights is acceptable in most localities. However, some localities prohibit their
use. Local laws should be checked for all highway and marking requirements.
• When driving the tractor and equipment on the road or highway under 40 kph (20 mph) at night or during
the day, use the amber warning lights and a slow moving vehicle (SMV) identification emblem.
• Plan your route to avoid heavy traffic.
• Be a safe and courteous driver. Always yield to oncoming traffic in all situations, including narrow bridg-
es, intersections, etc.
• Be observant of bridge loading ratings. Do not cross bridges rated at lower than the gross weight at which
you are operating.
• Watch for obstructions overhead and to the side while transporting.
• Always operate in a position to provide maximum visibility at all times. Make allowances for increased
length and weight of the equipment when making turns, stopping the unit, etc.
• Pick the most level route when transporting across fields. Avoid the edges of ditches or gullies and steep
hillsides.
• Be extra careful when working in inclines.
Highway and Transport Operations

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Sub-Compact Rotary Tiller DLT & DLT-S Series
Important Safety Information
• Maneuver the tractor or towing vehicle at safe speeds.
• Avoid overhead wires or other obstacles. Contact with overhead lines could cause serious injury or
death.
• Avoid loose fill, rocks and holes, they can be dangerous for equipment operation or movement.
• Allow for unit length when making turns,
• Operate the towing vehicle from the operator’s seat only.
• Never stand alongside of unit with engine running or attempt to start engine and/or operate machine while
standing alongside of unit.
• Never leave running equipment attachments unattended.
• As a precaution, always recheck the hardware on equipment following every 100 hours of operation. Cor-
rect all problems. Follow the maintenance safety procedures.
Highway and Transport Operations

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Sub-Compact Rotary Tiller DLT & DLT-S Series
Operating Instructions
Attaching to the tractor
1. With the Rotary Tiller on a level surface, back the Cat. 1 tractor so the tractor lift arms are even
with the unit’s
lower hitch points. Be sure nothing is between the tractor and the till-
er before backing up.
2.
justable lower hitch blocks that can be slide to facilitate usage on larger tractors.
3. Secure the lift arm in place by using a 7/16” lynch pin or other fastener.
4. Repeat with the other arm.
5. Connect the driveline to the tractor’s PTO output shaft. Secure it in place.
6. Connect the tractor top link to the upper hitch point of the rotary tiller.
7. Start the tractor and slowly raise the tiller. Check for drawbar interference. Be sure that the
PTO driveline does not bottom out when lifting the machine to it’s maximum height. If it does
appear that it could bottom out, it is necessary to shorten the PTO driveline. (See Shortening a
PTO Driveline section). Ensure that in the working position there is an overlap of a minimum
of 1/3 the length of each profile.
Shortening a PTO Driveline
1. With the implement attached to the tractor’s three point hitch, and the PTO driveline not installed, sepa-
rate the PTO driveline. Attach the implement end to the im-
plement and the other end to the tractor PTO input shaft.
2. Raise the implement by using the tractor’s hydraulic 3-point
hitch to it’s maximum lift height.
3. Hold the half shafts next to each other and mark them so each
end is approximately ½” from hitting the end of the telescopic
profiles.
4. Shorten the inner and out guard tubes equally.
5. Shorten the inner and outer profiles by the same length as the
guard tubes. Using a rat tail file, round off all sharp edges and
burrs. Grease the telescopic profile generously before reassembling.
Before attaching the rotary tiller to the tractor, check the unit to ensure there is oil
in the top and side gearbox. See Maintenance section for lubricant specifications.
Do not shorten too much, the proper overlap is a minimum of 1/3 the length of each
profile.

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Sub-Compact Rotary Tiller DLT & DLT-S Series
Operating Instructions
Working Depth Adjustment
The working depth is controlled by raising or lowering the side skids. If the skids are raised, the working depth
increases. By lowering the skids, the tilling depth with decrease.
Tailgate adjustment
The tailgate can be adjusted to help smooth and compact the tilled ground. Release the chain and secure to the
desired height.
Start up
After making the necessary adjustments, lower the rotary tiller until the blades are a couple of inches from the
ground. Engage the PTO and slowly lower the tiller to begin working.
Removal and Storage
1. After finishing, remove the rotary tiller from the tractor.
2. Put the PTO driveline in a safe location so it will not become damaged.
3. Clean and dry the equipment.
4. Replace any damaged or worn parts.
5. Check all bolts and nuts for tightness.
6. Lubricate and protect the machine from the elements.
• Following operation, or when unhitching, stop the tractor or towing vehicle, set the brakes,
disengage the PTO and all power drives, shut off the engine and remove the ignition keys.
• Store the unit in an area away from human activity.
• Do not park equipment where it will be exposed to livestock for long periods of time.
Damage and livestock injury could result.
• Do not permit children to play on or around the stored unit.
• Make sure all parked machines are on a hard, level surface and engage all safety devices.
• Wheel chocks may be needed to prevent unit from rolling.
Following Operation

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Sub-Compact Rotary Tiller DLT & DLT-S Series
Maintenance
• Good maintenance is your responsibility. Poor maintenance is an invitation to trouble.
• Make sure there is plenty of ventilation. Never operate the engine of the towing vehi-
cle in a closed building. The exhaust fumes may cause asphyxiation.
•
maintenance.
• Always use the proper tools or equipment for the job at hand.
• Use extreme caution when making adjustments.
• Never replace hex bolts with less than grade five bolts unless otherwise specified.
• After servicing, be sure all tools, parts and service equipment are removed.
• Where replacement parts are necessary for periodic maintenance and servicing, genuine factory replace-
ment parts must be used to restore your equipment to original specifications. The manufacturer will not
claim responsibility for use of unapproved parts and/or accessories and other damages as a result of their
use.
• liability
for injury or warranty.
Maintenance Schedule
8 hours Grease the Rotor support (GP grease)
Grease PTO shaft cross & bearings (GP grease)
Check Hardware for tightness
16 hours Check oil level in center gearbox (90wt)
Check oil level in side gearbox (140wt)
Check Hardware for tightness
200 hours Replace oil in center gearbox (90wt)
Replace oil in side gearbox (140wt)
Change chain tensioner spring (DLT model only)
Check Hardware for tightness
Replacing Blades
In order for the tiller to perform optimally, make sure the tiller blades are in good working condition and their
bolts and nuts tight. Always replace the blades with the bolt head against the blade and the washer and nut on
the flange side to help prevent the blades from loosening.
When several blades are to be replaced, replace them one blade at a time in order maintain the
scroll pattern on the rotor.
Performing Maintenance

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Sub-Compact Rotary Tiller DLT & DLT-S Series
Notes:
This chart is an approximate estimate of torque values.
Always tighten hardware to these values unless a different torque value or tightening procedure is listed for a specific application.
Fasteners must always be replaced with the same grade as specified in the manual.
Always use the proper tool for tightening hardware: SAE for SAE hardware and Metric for Metric hardware.
Make sure that fastener threads are clean and that you properly start thread engagement.

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Sub-Compact Rotary Tiller DLT & DLT-S Series
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Rev. 11/21
Sub-Compact Rotary Tiller
DLT & DLT-S Series
Parts Manual

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Sub-Compact Rotary Tiller DLT & DLT-S Series
DLT Series Rotary Tiller

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Sub-Compact Rotary Tiller DLT & DLT-S Series
Item Part # Description Qty.
BM101530 Bolt- M10 x 1.5 x 30
NM1015 Nut- M10 x 1.5
DP1003 A Frame
LW10 Lock Washer- M10
DP1005 Lower Suspension Pin
DP1006 Small Bevel Gear
B32010 Bearing- 32010
DP1008 Gasket- Dia. 80
DP1009 Cap- Dia. 80
10 ABM101525 Bolt- M10 x 1.5 x 25
11 LW10 Lock Washer- M10
12 BM061016 Bolt- M6 x 1.0 x 16
13 DP1013 Cap
14 LW06 Lock Washer- M6
15 DP1015 Gasket
16 DP1016 Intermediate Gearbox
17 SRE-35 Snap Ring- External- M35
18 DP1018 Big Bevel Gear
19 B30207 Bearing- 30207
20 OS355512 Oil Seal- M35 x 55 x 12
21 DP1021 Gasket- Dia. 90
22 BM101525 Bolt- M10 x 1.5 x 25
23 DP1023 Main Frame Pipe- DLT042
23 DP10231 Main Frame Pipe- DLT050
24 ABM101530 Allen Head Bolt– M10 x 1.5 x 30
25 FW10 Flat Washer- M10
26 LW10 Lock Washer- M10
27 LNM10 Self-locking Nut- M10 x 1.5
28 DP1028 Tailgate Chain
29 DP1029 Hook
30 DP1030 Tail Gate- DLT042
30 DP10301 Tail Gate- DLT050
31 DP1031 Output Shaft- DLT042
31 DP10311 Output Shaft- DLT050
32 B32010 Bearing- 32010
33 DP1033 Rod- DLT042
33 DP10331 Rod– DLT050
34 DP1034 Small Sprocket Wheel
35 SW24 Stop Washer
DLT Series Rotary Tiller

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Sub-Compact Rotary Tiller DLT & DLT-S Series
DLT Series Rotary Tiller