Sundown Audio JUMBO Series Product manual

ROTARY TILLERS
JUMBO SERIES (UHH)
OPERATOR'S AND PARTS’
MANUAL
J.S. Woodhouse Co., Inc.
OM1125-22EN-004_17

Congratulation for purchasing your new SUNDOWN rotary tiller!
This tiller has been designed and manufactured following all safety and quality requirements
needed for a safe and satisfactory use over time.
A careful reading of this manual will permit you to familiarize with your new equipment, and will
provide you all the tools needed to use it safely.
A proper maintenance and knowledge of the safety rules of use will allow to obtain the
best performance and a long service life of the machine.
The Safety Alert Symbol used throughout this manual and on safety
decals of the machine indicates the presence of potential hazard to the
operator. When you see this symbol, be alert and carefully read the
message that follows it.
The Safety Alert Symbol is used in conjunction with following Signal Words, according to the
degree of possible injuries that may result operating the implement:
DANGER
Indicates an imminently hazardous situation that, if not avoided, will result in death or serious
injury.
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.
IMPORTANT
Indicates instructions or procedures that, if not observed, can cause damage to equipment or
environment.
NOTE
Indicates helpful information.
READ, UNDERSTAND, and FOLLOW the safety messages following the Safety Alert Symbol and
Signal Words. Failure to comply with safety messages could result in serious bodily injury or death.

TO THE PURCHASER
This manual contains valuable information about SUNDOWN ROTARY TILLER. It has
been carefully prepared to give you helpful suggestions for operating, adjusting, servicing
repair parts.
Keep this manual in a convenient place for quick and easy reference. Study it
carefully. You have purchased a dependable and sturdy tiller, but only by proper care and
operation can you expect to get the service and long life designed and built into it.
RIGHT-HAND AND LEFT-HAND sides are determined by watching from the tractor side.
Sometime in the future your tiller may need new parts to replace those are worn or
broken. If so, go to nearest SUNDOWN dealer and provide him the model and part number.
Customer information
Name
Purchased from
Purchased date
Model No.
Serial No.

TABLE OF CONTENTS
1. ABOUT THIS MANUAL .........................................................................1
2. INTRODUCTION ....................................................................................1
2.1. TILLER IDENTIFICATION .........................................................................................................................................1
2.2. INTENDED USE .............................................................................................................................................................2
2.3. MAIN PARTS DESCRIPTION .................................................................................................................................... 3
ROTORS ..................................................................................................................................................................4
ROLLERS ...............................................................................................................................................................5
2.4. TILLER SPECIFICATION ............................................................................................................................................6
3. SAFETY .....................................................................................................7
3.1. GENERAL SAFETY INSTRUCTIONS .......................................................................................................................7
3.2. EQUIPMENT SAFETY INSTRUCTIONS .................................................................................................................8
3.3. OPERATING SAFETY INSTRUCTIONS ..................................................................................................................9
3.4. TRANSPORTING SAFETY INSTRUCTIONS ...................................................................................................... 10
3.5. MAINTENANCE SAFETY INSTRUCTIONS ....................................................................................................... 11
3.6. STORAGE SAFETY INSTRUCTIONS .................................................................................................................... 12
3.7. SAFETY LABELS ......................................................................................................................................................... 12
SAFETY LABELS POSITION AND DESCRIPTION ................................................................................ 13
4. SET-UP .................................................................................................. 18
4.1. LOWER HITCHES POSITIONING ......................................................................................................................... 18
4.2. CONNECTING TO THE TRACTOR ....................................................................................................................... 21
4.3. DRIVELINE INSTALLATION ................................................................................................................................. 22
DRIVELINE LENGTH CHECK ...................................................................................................................... 22
4.4. HYDRAULIC CONNECTION ................................................................................................................................... 24
4.5. CONNECTION OF ADDITIONAL IMPLEMENTS ............................................................................................ 24
4.6. TRACTOR-TILLER STABILITY ............................................................................................................................. 25
5. OPERATING ......................................................................................... 26
5.1. START UP ..................................................................................................................................................................... 26
5.2. OPERATING INSTRUCTIONS ................................................................................................................................ 27
5.3. ADJUSTMENTS ........................................................................................................................................................... 28
LOWER HITCHES ADJUSTMENT .............................................................................................................. 28
FRICTION CLUTCH ADJUSTMENT ........................................................................................................... 28

WORKING DEPTH ADJUSTMENT ............................................................................................................ 29
SKID ADJUSTMENT ....................................................................................................................................... 30
LEVELING BOARDS ADJUSTMENT ......................................................................................................... 30
REAR ROLLER ADJUSTMENT ................................................................................................................... 32
ADJUSTMENT THROUGH MECHANICAL JACKS ................................................................................ 33
ADJUSTMENT THROUGH HYDRAULIC JACKS .................................................................................... 34
LEVELING BAR ADJUSTMENT .................................................................................................................. 34
GEARBOX SPEED ADJUSTMENT .............................................................................................................. 35
5.4. STOPPING AND DISCONNECTION ..................................................................................................................... 36
5.5. TRASPORTING ........................................................................................................................................................... 37
6. MAINTENANCE ................................................................................... 38
6.1. REPLACEMENT OF TOOLS .................................................................................................................................... 38
REPLACEMENT OF TINES (TINES ROTOR) ......................................................................................... 39
REPLACEMENT OF BLADES (BLADES ROTOR).................................................................................. 40
REPLACEMENT OF SPIKES (SPIKES ROTOR)...................................................................................... 41
6.2. SCRAPER PLATES REPLACEMENT (PACKER ROLLER)............................................................................. 41
6.3. GEARBOX LUBRICATION ....................................................................................................................................... 42
6.4. SIDE CASE LUBRICATION ...................................................................................................................................... 43
6.5. ROTOR BLADES BEARING LUBRICATION ...................................................................................................... 44
6.6. REAR ROLLER BEARING LUBRICATION ......................................................................................................... 45
6.7. MECHANICAL JACK LUBRICATION ................................................................................................................... 45
6.8. DRIVESHAFT MAINTENANCE ............................................................................................................................. 46
7. STORAGE .............................................................................................. 47
8. SCRAPPING .......................................................................................... 48
9. TROUBLESHOOTING ........................................................................ 48
10. TORQUE VALUES TABLE ................................................................ 50
11. WARRANTY ………………………………………………………………………51
12. SPARE PARTS ...................................................................................... 53
JUMBO SERIES- SPARE PARTS TABLES AND LISTS ........................................................................ 54
13. "EC" DECLARATION OF CONFORMITY ........................................ 77

ROTARY TILLERS –Jumbo Series
1
1.ABOUT THIS MANUAL
The operator must read the manual for a correct understanding of the hazards that may present
when operating the tiller, as well as for obtain optimum performance from the machine.
The manual is part of the machine, it must be kept in good condition and remain with the machine
even in case of resale, until its demolition. In case of loss or damage, request a new copy to the
Manufacturer or your Dealer.
The information, descriptions and illustrations in this manual describe the state of the product at
the time of its publication, and may not reflect the product in the future.
The Manufacturer reserve the right to make design improvements or changes in specifications
without incurring in any obligation to install them on units previously sold.
Text, illustrations and drawings of this manual cannot be disclosed or transmitted, in whole or in
part, to third parties without the written permission of the Manufacturer. All rights are reserved.
2. INTRODUCTION
2.1. TILLER IDENTIFICATION
Each tiller is provided with a plate for unique identification (see position in picture below), showing
the CE marking together with following information:
• Manufacturer name and address
• Type of machine ("TYPE")
• Model of machine ("MODEL")
• Serial number ("SERIAL No.")
• Construction year ("YEAR")
• Machine weight ("MASS")
• Speed required at Implement Input Connection ("INPUT").
It's recommended to note down all data shown on the plate.
Any request for assistance or information regarding the machine must be directed to the
Manufacturer or Dealer always referring to the model and serial number as shown on the plate
affixed to the machine.

ROTARY TILLERS –Jumbo Series
2
2.2. INTENDED USE
The UHH-series tillers are designed specifically for soil tilling, and are intended to be used for
preparing the seeding bed - directly or after plowing -, for shuffling stubble and crop residues,
perform mechanical weeding and break permanent pastures.
The tillers can be set up in different configuration, depending of the type of work required,
through the assembly of optional kits, and are compatible for the fitting with complementary
machines (i.e. spreaders, seeding machines).
The tillers are designed to be mounted on tractors equipped with hydraulic lift and universal three
point hitch that can support the implement weight, and driven by the power of the tractor through
the PTO driveshaft.
The tractors used to operate the UHH-series tillers must have the following requirements:
Hitch Category: 3-point,
II - III Category (ISO 730 standard),
III Category Quick-Hitch (ASABE S278 standard)
PTO: 540 RPM / 1000 RPM
Horsepower: AS PER TECHNICAL SPECIFICATION TABLE
DANGER
Any use of the machine other than the intended use is non-intended use, and is to be considered
as unauthorized and dangerous. The manufacturer assumes no liability for damage resulting from
non-intended use.

ROTARY TILLERS –Jumbo Series
3
2.3. MAIN PARTS DESCRIPTION
1. Tiller deck
2. Clevis (lower hitch)
3. Lower hitch pin
4. Upper hitch pin
5. Top mast
6. PTO shield
7. Implement Input Connection
8. Gearbox
9. Side transmission case
10. Rear leveling board
11. Rotor shaft
12. Tine
13. Parking stand
14. Skid
15. Cardan driveshaft
16. Driveshaft hook
17. Front barrier
18. Side barrier
19. Leveling board adjuster
20. Roller
21. Jack for roller adjustment
22. Lifting arm for roller
23. Leveling bar
24. Jack for leveling bar adjustment
25. Manual Container

ROTARY TILLERS –Jumbo Series
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NOTE
To make the illustrations more clear, some images of this manual may refer to machines lacking of
some components (e.g. safety devices and barriers).
ROTORS
Tines rotor
("A" type)
Tines rotor
("B" type)
Blades rotor
(to use with leveling
bar)
Spikes rotor
26. Tine
27. Blade
28. Spike

ROTARY TILLERS –Jumbo Series
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REAR ROLLERS (OPTIONAL)
Packer
Roller
(D=450;
D=500)
Spike
Roller
(D=490;
D=540)
Cage
Roller
(D=400;
D=450)
29. Roller frame
30. Lifting arm
31. Scraper plate
32. Packer Roller
33. Spike Roller
34. Cage Roller

ROTARY TILLERS –Jumbo Series
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2.4. TILLER SPECIFICATIONS
Model
UHH 250
UHH 300
Overall dimensions
cm
280 x 120 x140
330 x 120 x 140
Working width
cm
260
310
inch
102
122
Tractor power
HP /
KW
90-120 / 67-89
100-140 / 75-104
3-point Hitch type
-
II - III Category (ISO 730 standard),
III Category Quick-Hitch (ASABE S278 standard)
PTO Input speed
rpm
540 / 1000
Rotor Shaft Speed
rpm
@540
203 / 224 / 248
rpm
@1000
204 / 251 / 278
Side transmission
type
-
gears
Working depth (max)
cm
25
inch
10
Rotor tube diameter
mm
115
Rotor Swing
Diameter
mm
530
Driveline safety
device
-
slip clutch / driveshaft W/Automatic clutch(Optional)
Weight - with
"Standard Tine
(Square / Curved ) "
type rotor (*)
Kg /
lbs
1061/2339
1167/2573
Tines rotor -
"Standard Tine”
Square / Curved Type
Number of tines
Nos.
60
72
Spikes rotor
Numbers of spikes
Nos.
50
60
"Straight" Blades
rotor
Numbers of blades
Nos.
84
100
Packer roller
Overall dimension
cm
268x60x48
268x60x60
315x60x48
315x60x60
Diameter
mm
450
500
450
500
Weight (**)
Kg/lbs
352 / 776
293 / 646
419 / 924
393 / 867
Cage roller
Overall dimension
cm
268x57x43
268x48x61
315x57x43
315x48x61
Diameter
mm
400
450
400
450
Weight (**)
Kg/lbs
167 / 209
368/461
193 / 245
425/540
Spike roller
Overall dimension
cm
268x50x62
268x61x52
268x50x62
315x61x52
Diameter
mm
490
540
490
540
Weight (**)
Kg/lbs
192 / 211
423/465
224 / 251
494/553
Levelling bar
3w
Weight
kg
78
86
(*) roller and driveshaft excluded (**) roller frame with hydraulic jack included

ROTARY TILLERS –Jumbo Series
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3.SAFETY
Proper use of the equipment, a strict observance of the safety messages listed below and
application of all reasonable practices to avoid any risks, prevents accidents or injury, allows the
machine working better and longer, and minimize the failures.
The manufacturer assumes no liability for any damage resulting from not applying the behavioral
rules indicated into the manual.
3.1. GENERAL SAFETY INSTRUCTION
DANGER
The machine must be used only by authorized and well trained operators. The operator must have
read and understood the instructions of this manual, it must make adequate preparation for the
proper use of the machine and must hold a driving license. In case of doubt about the use of the
machine and/or the interpretation of this manual, the operator must contact the Manufacturer or
the Dealer.
WARNING
The manual must always remain with the machine. In case of loss or damage, request a new copy
to the Manufacturer or your Dealer.
WARNING
Follow strictly the rules prescribed by the safety pictograms applied to the machine.
WARNING
Be sure that all safety pictograms are legible. If pictograms are worn, they must be replaced with
others obtained from the Manufacturer, and placed in the position indicated by this manual.
DANGER
Before using the machine, make sure that all safety devices are installed and in good working
conditions. In case of damages of shields, replace them immediately.
DANGER
Is absolutely forbidden to remove or alter safety devices.
DANGER
Before starting, and during operation of the tiller, make sure there are no people or animals in the
operation area: the machine can project material from the back, with risks of serious injury or
death.
DANGER
Pay maximum attention to avoid any accidental contact with rotating parts of the machine.
DANGER
During operation, adjustment, maintenance, repairing or transportation of the machine, the
operator must always use appropriate Personal Protective Equipment (PPE).

ROTARY TILLERS –Jumbo Series
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DANGER
Do not operate the implement while wearing loose fitting clothing that can give rise to
entanglement in parts of the machine.
DANGER
Do not operate the implement when tired, not in good condition or under the influence of alcohol
or drugs.
CAUTION
If the use of the machine is required at night or in conditions of reduced visibility, use the lighting
system of the tractor and possibly an auxiliary lighting system.
3.2. EQUIPMENT SAFETY INSTRUCTIONS
WARNING
Use the tiller for its intended purpose only. Improper use can damage the tiller and cause serious
injury to persons, animals, or death.
DANGER
The machine should be used by a single operator driving the tractor.
WARNING
Any unauthorized modification of the machine may cause problems in safety and relieves the
Manufacturer from any liability for damages or injuries that may result to operators, third parties
and objects.
WARNING
Before using the machine, familiarize yourself with its controls and its working capacity.
WARNING
Do not leave the tiller unattended with tractor engine running.
WARNING
Do not operate tiller on too muddy, sandy or rocky soils.
WARNING
Keep the machine clean from debris and foreign objects which may damage functioning or cause
injury.
WARNING
Do not use the machine if the category of the connecting pins of the tiller does not match that of
the tractor hitch system.

ROTARY TILLERS –Jumbo Series
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WARNING
Do not use the machine with missing bolts, screws, pins or safety pins.
WARNING
Never use the machine to transport or lift people, animals or objects.
WARNING
Make certain, by adding front ballast, that at least 20% of the total weight (tractor, implement
and ballast) is on the front axle of the tractor, to ensure stability.
WARNING
Before engaging the tractor PTO, make sure the tractor PTO speed is set as required for the tiller
(540 or 1000 rpm). Do not over speed PTO or machine breakage may result.
DANGER
Do not operate the tiller if the driveshaft is damaged. The driveshaft could be subject to breakage
during operation, causing serious injury or death. Remove the driveshaft and replace it with an
undamaged.
DANGER
With tiller disconnected from tractor, rest the driveline on the provided support of the tiller.
3.3. OPERATING SAFETY INSTRUCTION
WARNING
Before using the machine, be sure to have cleared the operating area from obstacles (stones,
branches, debris, etc...). Mark all the obstacles that cannot be eliminated (e.g. by means
flags).
DANGER
Never engage the tractor PTO in the presence of people close to the driveshaft. The body, hair or
clothing of a person can get caught in rotating parts, causing serious injury or death.
DANGER
Before engaging the PTO and during all operations, make sure that no person or animal is in
immediate area of action of the machine. Never use the tiller if people are in his working area.
DANGER
It's absolutely forbidden to stand near the tiller with moving parts.
WARNING
The operator must operate tiller lifting/lowering only from the driving seat of the tractor. Do not
perform lifting maneuvers on side or behind the tractor.
WARNING

ROTARY TILLERS –Jumbo Series
10
Before making changes in direction, turns or going in reverse, slightly lift the tiller from the ground
after disengaging the power take-off, to avoid damage to the machine.
DANGER
In presence of steep slopes (greater than 15 degrees) the tilling action may cause instability of the
tractor, with risk of tipping and consequent serious injury or death hazard. Consult the manual for
the tractor to determine the maximum slope that the tractor is able to deal with.
DANGER
Always disengage the PTO before raising the tiller, and never engage the PTO with the tiller in the
raised position. The machine might throw objects at high speed, causing serious injury or death.
WARNING
Never leave the driver's seat when the tractor is turned on. Before leaving the tractor, lower the
tiller to the ground, disengage the PTO, insert the parking brake, stop engine and remove the key
from the control panel.
DANGER
The PTO shields of tractor and implement side, the driveshaft shielding and the driveshaft
retaining chains must be properly installed and in good condition, to avoid risk of entanglement
with serious injury or death.
DANGER
Before engaging the PTO of the tractor, always make sure that the drive shaft is mounted in the
correct direction, and that its clamping elements are properly connected both to tractor side and
to tiller side.
WARNING
Stop operating immediately if blades strike a foreign object. Repair all damage and make certain
rotor and blades are in good condition before resuming operation.
WARNING
Always disengage the tractor PTO when the driveshaft exceed an angle of 10 degrees up or down
while operating. An excessive angle with driveshaft rotating can break the driveshaft and cause
flying projectiles.
CAUTION
Avoid clutch's overheating caused by too long or frequent slipping of the clutch, since it can
damage the clutch components. Before checking slip clutch, make sure it has cooled. Clutch could
be extremely hot and cause severe burn.
CAUTION
Prolonged use of the tiller can cause overheating of the gearbox. Do not touch the gearbox during
use and immediately after, it could be extremely hot and cause severe burn.
WARNING

ROTARY TILLERS –Jumbo Series
11
All adjustment operations on the tiller must be performed by qualified and trained operators, with
the tractor engine off, the PTO disengaged, the tiller lowered to the ground or on security stands,
the ignition key off and the parking brake set.
3.4. TRANSPORTING SAFETY INSTRUCTIONS
WARNING
Before transporting, determine the stopping characteristics of the tractor and implement.
WARNING
Transport only at speeds where you can maintain control of the equipment.
WARNING
When driving on roads, the implement must be in transport position adequately raised from the
road surface, with tractor lifting hydraulics locked so that the tiller cannot be lowered accidentally.
DANGER
The implement may be wider than the tractor. Pay attention during transporting to persons,
animals or obstacles exposed.
WARNING
When turning, use extreme care and reduce tractor speed.
WARNING
Do not operate the tractor with weak or faulty brakes or worn tires.
CAUTION
Always use tractor lighting system and auxiliary lighting system for an adequate warning to
operators of other vehicles, especially when transporting at night or in conditions of reduced
visibility.
DANGER
In case of tiller lifting, make sure that the lifting device chosen is suitable to perform the operation
safely, and use only the lifting points prescribed on tiller.
3.5. MAINTENANCE SAFETY INSTRUCTION
WARNING
All maintenance and repairing operations must be performed by qualified and trained operators,
with the tractor engine off, the PTO disengaged, the tiller lowered to the ground or on security
stands, the ignition key off and the parking brake set.
WARNING
Perform repairs and replacements necessary to the machine using only original spare
parts provided by the manufacturer or your Dealer.

ROTARY TILLERS –Jumbo Series
12
DANGER
Perform maintenance operations always using appropriate Personal Protective Equipment (protective
eye glasses, hard hat, hearing protection, safety shoes, overall and work gloves, filter mask).
CAUTION
Before any maintenance operation, make sure that the parts which may become hot during use
(friction clutch, gear box...) have cooled.
WARNING
Do not perform repairs that you do not know. Always follow the manual instructions and in case of
doubt contact the Manufacturer or your Dealer.
DANGER
Do not swallow fuels or lubricants. In case of accidental contact with eyes, rinse well with water
and consult a doctor.
3.6. STORAGE SAFETY INSTRUCTIONS
WARNING
Never leave the tractor unattended with the tiller in lifted position. Accidental operation of lifting
lever or a hydraulic failure may cause sudden drop of unit with injury or death by crushing.
DANGER
Following operation, or before unhooking the tiller, stop the tractor, set the brakes, disengage the
PTO, lower the attached tiller to the ground, shut off the engine, remove the ignition key and wait
for all moving parts to stop.
WARNING
Make sure all parked machines are on a hard, level surface and engage all safety devices.
CAUTION
Place support blocks under tiller as needed to prevent unit from tipping over onto a child and/or an
adult. A tiller that tips over can result in injury or death.
CAUTION
Store the unit in an area away from human activity.
3.7. SAFETY LABELS
The safety labels applied on the machine give fundamental information for using the machine
safely.
Make sure safety labels are in good conditions. If pictograms are worn, they must be replaced with
others obtained from the Manufacturer and placed in the position indicated by this manual.
Make sure the safety labels are legible. If necessary, wipe them by a cloth, with soap and water.

ROTARY TILLERS –Jumbo Series
13
SAFETY LABELS POSITION AND DESCRIPTION

ROTARY TILLERS –Jumbo Series
14
S.
NO.
SPARE
CODE
DESCRIPTION
DECALS
1
D1090
WARNING: ALWAYS READ
THE OPERATOR MANUAL
2
D1038
MAINTENANCE:TURN OFF
TRACTOR& REMOVE KEY
3
D1095
THROWN OR FYING
OBJECTS HAZARD
4
D1096
ROTATING KNIVES, LOWER
LIMBS HAZARD
5
D1078
HAND HAZARD