Blue Diamond 429015 User manual

Operation and Maintenance Manual
Standard Duty Tractor
Rototiller
888-376-7027 | BlueDiamondAttachments.com
Register your
WARRANTY
within 30 days
of purchase

Blue Diamond® Attachments2
Thank you for your decision to purchase a Blue Di-
amond® Standard Duty Tractor Rototiller. To ensure
maximum performance of your equipment, it is manda-
tory that you thoroughly study the Operator’s manual
and follow the recommendations. Proper operation and
maintenance are essential to maximize equipment life
and prevent personal injury.
Operate and maintain this equipment in a safe man-
ner and in accordance with all applicable local, state,
and federal codes, regulations and /or laws. Follow all
on-product labeling and instructions.
Make sure that all personnel have read this Operator’s
Manual and thoroughly understand safe and correct
operating, installation and maintenance procedures.
Blue Diamond is continually working to improve its
products. Blue Diamond reserves the right to make any
improvements or changes as deemed practical and pos-
sible without incurring any responsibility or obligation
to make any changes or additions to equipment sold
previously.
Although great care has been taken to ensure the
accuracy of this publication, Blue Diamond makes no
warranty or guarantee of any kind, written or expressed,
implied or otherwise with regard to the information
contained within this manual. Blue Diamond assumes
no responsibility for any errors that may appear in this
manual and shall not be liable under any circumstances
for incidental, consequential or punitive damages in con-
nection with, or arising from the use of this manual.
Keep this manual available for frequent reference. All
new operators or owners must review the manual before
using the equipment and annually thereafter. Contact
your Blue Diamond Attachments Dealer for assistance,
information, or additional copies of the manual. Contact
www.bluediamondattachments.com or call 888-376-
7027 for a complete list of dealers in your area.
Serial Number Location:
Please record attachment information in the space pro-
vided for future reference.
Figure 1
Model Number:_____________________________
Serial Number: _____________________________
Dealer Name: ______________________________
Dealer Number:_____________________________
Date of Purchase:___________________________
The serial number plate is located as shown in [Figure 1].
Always use your serial number when requesting infor-
mation or when ordering parts.
NOTE: The directions left, right, front and rear, as
mentioned throughout this manual, are as viewed from
the operator’s position.
Introduction: Owner Information
Revision Date: 12.16.2022

3Blue Diamond® Attachments
Table of Contents
1. Introduction..................................................................................4-5
1.1 Attachment Identification.........................................................4
1.2 Attachment Specifications..................................................... 5
2. Safety ......................................................................................... 6-12
2.1 General Safety Information.................................................... 6
2.2 Qualified Operators.................................................................7
2.3 Equipment Safety Instructions..............................................7
2.4 Operating Safety Instructions .............................................. 8
2.5 Transporting Safety Instructions.......................................... 9
2.6 Maintenance Safety Instructions........................................10
2.7 Storage Safety Instructions..................................................10
2.8 Safety Decals...........................................................................11
3. Set Up .......................................................................................13-16
3.1 General Information................................................................ 13
3.2 Connecting to the Tractor ....................................................15
3.3 Driveline Installation..............................................................15
3.4 Tractor–Tiller Stability ........................................................... 17
4. Operation ................................................................................18-22
4.1 Start Up...................................................................................... 17
4.2 Operation Instructions ..........................................................19
4.3 Adjustments ...........................................................................20
4.4 Stopping and Disconnecting.............................................. 22
4.5 Transporting...........................................................................22
5. Maintenance.......................................................................... 23-27
5.1 Blades Replacement ............................................................. 23
5.2 Gearbox Lubrication.............................................................25
5.3 Side Case Lubrication..........................................................25
5.4 Bearing Housing Lubrication..............................................26
5.5 Driveshaft Maintenance ......................................................26
6. Storage .........................................................................................28
7. Scrapping......................................................................................29
8. Troubleshooting.....................................................................30-31
9. Specifications .............................................................................. 32
9.1 Torque Specifications............................................................ 32
10. Spare Parts ................................................................................. 33
11. Parts ........................................................................................34-40
11.1 LH Side Plate Components ................................................. 34
11.2 RH Side Plate Components ............................................... 35
11.3 Main Frame Components................................................... 36
11.4 Top Gearbox Components ................................................. 39
11.5 Slipclutch Driveline Components – 4’, 5’, & 6’ Tillers... 40
11. Warranty........................................................................................ 41

Blue Diamond® Attachments4
1. Introduction
1.1 Attachment Identification
Ref
1 Tiller Deck
2 Clevis (lower hitch)
3 Lower hitch pin
4 Upper hitch pin
5 Topmast
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 support
NS Front guards
18 Rear guards
19 Manual Container
4
6
16 852
19
1
9
10
18
15 14
7
3
11
12
13

5Blue Diamond® Attachments
1.2 Attachment Specifications
DESCRIPTION STANDARD DUTY TRACTOR ROTOTILLER
Product Number — 429015 429020
Overall Dimensions mm 1649 x 940 x 720 1970 x 940 x 720
Tilling Width
in 59” 72”
cm 150 183
Recommended Tractor HP range HP 25 — 40 35 — 50
3-point Hitch type — Cat I, Compatible Quick
Hitch I Cat. ASAE
Cat I, Compatible Quick
Hitch I Cat. ASAE
Number of Flanges on Rotor No. 7 9
Total Number of tines on Rotor No. 42 54
PTO Input Speed RPM 540 540
Rotor Shaft Speed RPM @
540 241 241
Standard Tine Construction — curved curved
Transmission Type — gear gear
Maximum Working Depth cm 18 18
Rotor Tube Diameter mm 76 76
Rotor Swing Diameter mm 434 434
Driveline Safety Device — Slip clutch Slip clutch
Weight (driveline not included)
lbs 564 683
kg 256 310
1. Introduction

Blue Diamond® Attachments6
2.1 General Safety Information • Read and follow instructions in this manual
and the machine’s Operators Manual before
operating.
• The manual must always remain with the
machine. In case of loss or damage, request
a new copy from your dealer or from Blue
Diamond.
• Strictly follow all rules prescribed by the safety
pictograms/decals applied to the machine.
Ensure that all safety pictograms/decals are
legible. If pictograms/decals are worn, they
must be replaced with new ones obtained
from Blue Diamond and placed in the position
indicated by this manual.
• Before using the machine, make sure that
all safety devices are installed and in good
working ocnditions. In case of damage or
shields, replace them immediately.
• It is absolutely forbidden to remove or alter
safety devices.
• Before starting, and during operation of the
rototiller, 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.
• Pay maximum attention to avoid any accidental
contact with rotating parts of the machine.
• During operation, adjustment, maintenance,
repairing, or transportation of the machine, the
operator must always use appropriate Personal
Protective Equipment (PPE) including but not
limited to safety glases, gloves, and hearing
protection.
• Do not operate the attachment or machine
while wearing loose fitting clothing that can be
entangled or caught in parts of the machine.
• Do not operate the implement when tired, not
in good condition, or under the influence of
alcohol or drugs.
2. Safety
CAUTION
The signal word CAUTION on the machine and
in the manuals indicates a potentially hazardous
situation which, if not avoided, may result in minor
or moderate injury. It may also be used to alert
against unsafe practices.
WARNING
The signal word WARNING on the machine and
in the manuals indicates a potentially hazardous
situation which, if not avoided, could result in
death or serious injury.
DANGER
The signal word DANGER on the machine and in
the manuals indicates a hazardous situation which,
if not avoided, will result in death or serious injury.
SAFETY ALERT SYMBOL
This SAFETY ALERT SYMBOL identifies important
safety messages on the equipment and in the
owner’s manual. when you see this symbol, be
alert to the possibility of personal injury and
carefully read the message that follows.
IMPORTANT
The signal word IMPORTANT identifies procedures
which must be followed to avoid damage to the
machine.

7Blue Diamond® Attachments
2.1 General Safety Instruction
Cont’d
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.
2.2 Qualified Operators
Safe Operation Needs a Qualified
Operator
Operator Training
• Check the rules and regulations at your
location. The rules may include an employer’s
work safety requirements. Regulations may
apply to local driving requirements or use
of a Slow Moving Vehicle (SMV) emblem.
Regulations may identify a hazard such as a
utility line.
• The new operator must start in an area without
bystanders and use all the controls until he or
she can operate the machine safely under all
conditions of the work area.
2.3 Equipment Safety Instruc-
tion
• Use the tiller for its intended purpose only.
Improper use can damage the tiller and cause
serious injury to persons, animals, or death.
• The machine should be used by a single
operator driving the tractor.
• Any unauthorized modification of the machine
may cause problems in safety and relieves
Blue Diamond from any liability for damages
or injuries that may result to operators, third
parties, and objects.
• Before using the machine, familiarize yourself
with its controls and its working capacity.
• Do not leave the tiller unattended with tractor
engine running.
• Do not operate the tiller on too muddy, sandy,
or rocky soils.
• Keep the machine clean from debris and
foreign objects which may damage function or
cause injury.
2. Safety
AVOID SERIOUS INJURY OR DEATH
Operators must receive instructions before
operating the machine. Untrained operators can
cause serious injury or death.
For an operator to be qualified, he or she must
not use drugs or alcoholic drinks which impair
alertness or coordination while working. An
operator who is taking prescription drugs must
get medical advice to determine if he or she can
safely operate a machine and the equipment.
For an operator to be qualified, he or she must
have read and understood the instructions of
this manual, he or she must make adequate
preparation for the proper use of the machine,
and he or she must hold a driving license.
In case of doubt regarding the use of the machine
and/or the interpretation of this manual, the
operator must contact either their dealer or Blue
Diamond.
DANGER
DANGER
Failure to follow all safety instructions may result in
serious injury or death.
WARNING

Blue Diamond® Attachments8
2.3 Equipment Safety Instruc-
tion Cont’d
• Do not use the machine if the category of the
connecting pins of the rototiller does not match
that of the tractor hitch system.
• Do not use the machine with missing bolts,
screws, pins, or safety pins.
• Never use the machine to transport or lift
people, animals, or objects.
• Make certain, by adding front ballast, that
at least 20% of the total weight (tractor,
attachment, and ballast) is on the front axle of
the tractor to ensure stability.
• Before engaging the tractor PTO, make sure
the tractor PTO speed is set as required for
the tiller (540 rpm). Do not over speed PTO or
machine breakage may result.
• Do not operate the tiller if the driveshaft is
damaged. The driveshaft could be subject to
breakage during operation, causing serious
ijury or death. Remove the driveshaft and
replace it with an undamged one.
2.4 Operating Safety Instruc-
tions
• 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 removed (e.g. by
means of highly visible flags).
• Never engage the tractor PTO in the presence
of people close to the driveshaft. The body,
hair, or clothing of a person can be easily
caught in rotating parts, causing serious injury
or death.
• Before engaging the PTO and during all
operations, make sure that no person or
animal is in the immediate area of action of the
machine. Never use the tiller if people are in
the working area.
• It’s absolutely forbidden to stand near the tiller
with moving parts.
• 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.
• Before making changes in direction, turns, or
going in reverse, slightly lift the tiller from the
ground after disengaging the power take-o, to
avoid damage to the machine.
• 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 Operating Manual for the tractor to
determine the maximum slope that the tractor
is able to deal with.
• 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.
2. Safety
DANGER
Failure to follow all safety instructions may result in
serious injury or death.
WARNING

9Blue Diamond® Attachments
2.4 Operating Safety Instruc-
tions Cont’d
• 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.
• 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.
• Before engaging the PTO of the tractor, always
make sure that the drive shaft is mounted
in the correct direction and that is clamping
elements are properly connected both to the
tractor side and the tiller side.
• 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.
• 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.
• Avoid clutch’s overheating caused by too
long or frequent slipping of the clutch, since it
can damage the clutch componenets. Before
checking slip clutch, make sure it has cooled.
Clutch could be extremely hot and cause
severe burns.
• 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
burns.
• All adjustment operations on the tiller must
be performed by qualified and trained
operators, with the tractor engine o, the PTO
disengaged, the tiller lowered to the ground or
on security stands, the ignition key o, and the
parking brake set.
2.5 Transporting Safety In-
structions
• Before transporting, determine the stopping
characteristics of the tractor and attachment.
• Transport only at speeds where you can
maintain control of the equipment.
• 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.
• The attachment may be wider than the tractor.
Pay attention during transporting to persons,
animals, or obstacles exposed.
• When turning, use extreme care and reduce
tractor speed.
• Do not operate the tractor with weak or faulty
brakes or worn tires.
• 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.
• 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 the tiller.
2. Safety

Blue Diamond® Attachments10
2.6 Maintenance Safety In-
structions
• All maintenance and repairing operations
must be performed by qualified and trained
operators, with the tractor engine o, the PTO
disengaged, the tiller lowered to the ground or
on security stands, the ignition key o, and the
parking brake set.
• Perform repairs and replacements necessary
to the machine using only original spare parts
provided by the manufacturer or your Dealer.
• Perform maintenance operations always using
appropriate Personal Protective Equipment
(PPE). Including but not limited to protective
eye glasses, hard hat, hearing protection,
safety shoes, overall and work gloves, filter
mask, etc.
• Before any maintenance operation, make sure
that the parts which may become hot during
use (friction clutch, gear box, etc) have cooled
or serious injury may occur.
• Do not perform repairs that you do not know.
Always follow the manual instructions and
in case of doubt contact your dealer or Blue
Diamond.
• Do not swallow fuels or lubricants. In case of
accidental injestion, immediately seek medical
treatment. In case of accidental contact with
eyes, rinse well with water and consult a
doctor.
2.7 Storage Safety Instruc-
tions
• 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.
• Following operation, or before unhooking
the tiller, stop the tractor, set the brakes,
disengage the PTO, lower the attached tiller
to the ground, shut o the engine, remove the
ignition key, and wait for all moving parts to
stop.
• Make sure all parked machines are on a
hard, level surace, and all safety devices are
engaged.
• 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.
• Store the unit in an area away from human
activity.
2. Safety

11Blue Diamond® Attachments
2. Safety
2.8 Safety Decals
The safety decals applied on the machine give fundamental information for using the machine safely.
Make sure safety decals are in good condition. If the decals are worn, they must be replaced with others
obtained from Blue Diamond and placed in the correct positions indicted by this manual.
Make sure the safety decals are legible. If necessary, wipe them by a cloth with soap and water.

Blue Diamond® Attachments12
ITEM PART NUMBER DESCRIPTION
1 529300 WARNING: ALWAYS READ THE OPERATOR MANUAL
2 529301 MAINTENANCE: TURN OFF TRACTORS & REMOVE KEY
3 529302 THROWN OR FLYING OBJECTS HAZARD
4 529303 ROTATING KNIVES, LOWER LIMBS HAZARD
5 529304 HAND HAZARD
6 529305 ROTATING GEARS
7 529306 CRUSHING HAZARD BY LINK LIFTING
8 529307 IMPLEMENT INPUT DRIVELINE
9 529308 TRACTOR PTO RPM & ROTATION DIRECTION
10 529309 FINGERS/HANDS CRUSHING HAZARD
11 529310 SAFETY EQUIPMENT
12 529311 OIL FILLING PLUG - NEW
13 529312 GREASE - NEW
14 529313 OIL DRAIN PLUG
15 529314 MAINTAIN OIL LEVEL
16 529315 LIFTING HOOK JOINT
17 529316 MAINTENANCE GUIDE (STANDARD DUTY)
18 529317 CE LOGO
19 529318 ROTATING DRIVELINE (COVER)
20 529319 ROTATING DRIVELINE (TUBE)
2.8 Safety Decals Cont’d
2. Safety

13Blue Diamond® Attachments
The tiller is delivered fully assembled and
equipped with a driveshaft with torque limiter
(clutch discs) and related operating manual.
When the attachment is delivered, check that there
is no damage to the tiller or driveshaft. In case of
damage or missing parts immediately notify the
dealer or Blue Diamond.
3.1 General Information
The Standard Duty Tractor Rototiller is designed to
be mounted on tractors equipped with:
• 3-point Hitch Category I (ISO 730 standard)
• Quick Hitch Category I (ASABE Standard)
The position of the lower hitches must be adjusted
accordingly.
3-Point Hitch Category I
If the tractor is equipped with a 3-point Hitch
Category I (ISO 730 standard), verify that the upper
pin is positioned down and that lower clevises are
showing the pins oriented down [Figure 1], so that
the distance between upper and lower pins is 18”
(460 mm approx), as required from the standard.
If this does not occur, proceed as follows:
1. Remove the pin from the upper hole of the top
mast, through the extraction of the elastic pins,
remove bushing provided for coupling with
Quick Hitch, and reposition the pin through
the lower hole. Replace the elastic pins when
finished. Store the bushing for possible future
use.
2. Remove the U-bolts clamping the clevises to
the square tube.
3. Invert the clevises orientation and reposition
them on the square tube at distance of 13-
7/16” from the center of tiller PTO. At the end
of the operation the lower clevises shall be
positioned symmetrically respect to tiller PTO,
at distance of 26-7/8” (683 mm)
4. Re-tighten the U-bolts, referring to the
tightening table of this manual.
5. Remove from lower pins the bushings provided
for coupling with Quick Hitch, through the
extraction of elastic pins. Replace the elastic
pins when finished. Store the bushings for
possible future use.
3. Set Up
Figure 1

Blue Diamond® Attachments14
3.1 General Information
Cont’d
Quick Hitch Category I
If the tractor is equipped with a Quick Hitch
Category I (ASABE Standard), verify that the upper
pin is oriented down, and that lower clevises are
showing the pins oriented up [Figure 2]. so that the
distance between upper and lower pins is 15” (381
mm), as required from the standard.
If this does not occur, proceed as follows:
1. Remove the pin from the upper hold of the
topmast, through the extraction of the elastic
pins, and reposition the pin through the lower
hole. Be sure the pin is provided with bushing
for coupling with the Quick Hitch. Replace the
elastic pins when finished.
2. Remove the U-bolts clamping the clevises to
the square tube.
3. Invert the clevises orientation and reposition
them on the square tube at distance of 13-
7/16” from the center of tiller PTO. At the end
of the operation the lower clevises shall be
positioned symmetrically with respect to tiller
PTO, at a distance of 26-7/8” (683 mm)
4. Retighten the U-bolts, referring to the
tightening table of this manual. Be sure the
pins are provided with bushing for coupling
with Quick Hitch.
NOTE: The upper hole of the top mast provides
the tiller with an additional possibility of adaptation
to tractors with 3-point hitch Category 1.
3. Set Up
Figure 2

15Blue Diamond® Attachments
3.2 Connecting to the Tractor
To connect the tiller to the tractor the operator
must do the following:
• Drive the tractor in reverse, align the rear lifting
arms to lower hitches of the tiller in parking
• Set the tractor’s parking brake, stop engine,
remove the ignition key, and leave the
operator’s position.
• Connect the lifting arms of the tractor to the
lower hitches of the tiller, through the use of
the pins and the relative safety split pins.
• Raise the tiller until PTOs of the tractor and
attachment are at the same height, then adjust
the 3-Point top link so that the front of the
machine is leveled to the back (the axis of the
tiller PTO must be parallel to the ground), in
order to minimize stress transmitted to the tiller
through the cardan shaft
• Make sure that the left side of the tiller is
leveled with the right, by adjusting the tractor
lifting arms, then lock the arms to prevent
swinging that could compromise the stability of
tractor and machine.
• Finally, adjust the parking stand, placing it
at the highest point by means of the related
elastic pin.
3.3 Driveline Installation
Before installing the driveshaft, the operator
must read the manuals of driveshaft and tractor,
checking in particular that RPM and direction of
rotation of the tractor PTO match those of the tiller.
If the direction of rotation of the PTO tractor does
not match that of the tiller, contact your dealer or
Blue Diamond.
To connect the driveshaft to the tractor and
implement, the operator must:
• Park tractor and tiller on a flat surface, with
parking brake set, engine o, and ignition key
removed.
• Check that safety devices of drive shaft,
tiller, and tractor are in good condition. If not,
provide for their replacement.
• Remove the PTO shield of the tiller through the
fixing screws.
• Position the driveshaft with clutch turned
towards the implement side.
• Insert the clutch hub on the tiller PTO, then
ensure its tightening onto shaft through its
fastener.
• Replace the PTO shield of the tiller through the
fixing screws.
• Insert the driveshaft yoke on the tractor PTO,
then ensure its tightening onto shaft through
its fastener.
• Hook to the tractor and tiller the two retaining
chains of the driveline shielding, to prevent
shielding rotation during functioning of the
machine.
Driveline Length Check
Before operating the tiller, ensure that the
size of driveshaft is adequate. The driveshaft
supplied with the machine has a standard length,
therefore it may need an adaptation of the
length, depending of the tractor which the tiller is
combined.
The length of the driveshaft must be such to:
• Avoid bottom out of the transmission tubes,
when the driveshaft is in compressed position
(when tiller is raised up o the ground)
3. Set Up

Blue Diamond® Attachments16
Driveline Length Check Cont’d
• Ensure an overlapping of the transmission
tubes enough to transmit the torque required
when the driveshaft is in max extension (when
tiller is in its lowest position in the ground).
When the driveshaft is at its minimum length (max
compressed position), there must be at least
a 2 cm of distance between the ends of each
transmission tube and the yoke’s side.
When the driveshaft is at its maximum operational
extension, there must be an overlap between the
tubes’ profiles of 15 cm at least.
Figure 3
Figure 4
A driveshaft too long may cause structural
damages to the tractor and machine. If the
driveshaft is too long, it may be adapted by
removing it and shortening the tubes according to
the instructions provided by the manufacturer in its
use and maintenance manual.
A driveshaft too short can cause disengage of the
tubes during operation, with severe hazard for the
operator and structural damage to the tractor and
machine. If the driveshaft is too short, it must be
replaced with a longer one. In this case contact the
Manufacturer or your dealer.
3. Set Up
IMPORTANT
• Before operating the tiller the first time,
make sure that the driveshaft is lubricated in
accordance with the instruction booklet.
• Before operating the tiller the first time and
after long periods of inactivity, make sure
that the driveline clutch has run a short “run
in” in accordance with what indicated in
the instruction manual of the Manufacturer,
removing the possible oxidation of the
components that may compromise the correct
slipping during the usage (see Maintenance
section).
• Always engage the tractor PTO at low RPM to
minimize the eect of the peak torque on the
driveline and the machine.

17Blue Diamond® Attachments
3.4 Tractor-Tiller Stability
The weight of the machine modifies the stability of
the system tractor-tiller, resulting in loss of steering
control and braking.
The front axle of the tractor should always be
loaded with at least 20% of the overall weight of
the system tractor-tiller.
Check the lifting capacity and stability of the
tractor making sure the following relatiionships are
complied with:
1) M x (S1 + S2) ≤ 0.2 x T x i + Z x (d + i)
2) M ≤ 0.3T
i = Tractor wheelbase (cm)
d = Distance between front axle and ballast
center of mass (cm)
T = Weight of tractor + operator (75 kg)
Z = Ballast weight (kg)
M = Implement weight (kg)
S1 = Distance between rear axle and lower
hitch points (cm)
S2 = Distance between lower hitch points and
implement center of mass = 34 cm
If this does not occur, apply the front ballast
required. To determine the appropriate
characteristics of the ballast, refer to the manual of
the tractor.
3. Set Up
CAUTION
Check the lifting capacity and stability of the
tractor and, if necessary, apply the front ballast. To
determine the appropriate characteristics of the
ballast, refer to the manual of the tractor.
Apply the front ballast as required. To determine
the appropriate characteristics of the ballast, refer
to the manual of the tractor.

Blue Diamond® Attachments18
Before operating the tiller, make sure you have
read and understood the operating manuals of the
tiller, tractor, and PTO shaft, and followed what is
described in the section “Set Up”.
4.1 Start Up
Before the start up and before each use, perform
the following pre-operation inspections and
service of the implement:
• Check that the tiller has not damaged
functional parts and has all mechanical parts
in good condition. Repair and / or replace the
damaged parts.
• Check that the tiller has no missing parts (pins,
safety pins, plugs, oil, etc). Restore the missing
parts.
• Check that all guards and safety devices have
no damages and are properly positioned.
Repair and / or replace the damaged shielding,
restore the correct position.
• Verify that the PTO driveshaft is properly
installed (see section Connection of the drive
shaft on page 15).
• Check that the driveshaft clutch is in good
condition, and that its componenets are not
subject to “sticking” (see Maintenance and
Driveline sections on pages 23 and 16).
• Check the presence of lubricant in all greasing
points of the tiller (driveshaft, supports, etc.)
(See sections on Lubrication starting on page
25).
• Check for oil leaks from the gearbox or the
transmission side cover. Identify the reason of
loss, then repair, and/or replace the damaged
components.
• Check the correct oil level in the gearbox and
in transmission side box (See Maintenance
section on page 23).
• Check that blades are not excessively
worn and the relating hardware is correctly
tightened (See Maintenance section on page
23).
• Check that all the tiller hardware is properly
tightened. Refer to the tightening table in the
manual for proper torque values (See table on
page 32).
• Check that all safety decals are correctly
positioned, in good condition, and legible.
Replace any damaged decals.
• Check that there is no constraints that may
prevent the movement of equipment. Remove
any constraint.
Before the start up and before each use, make the
following checks on the operating area identified
for tillage:
• Check that the area is clear of foreign objects
(rocks, branches, or debris). Remove any
obstacles and visibly highlight obstacles that
cannot be removed (e.g. with flags).
• Make sure in the exposed working area there
are no people or animals.
• Make sure the soil to be worked is not too
grassy, muddy, sandy, or rocky.
4. Operation
DANGER
During operation, adjustment, maintenance, repair-
ing, or transporting of the attachment, the operator
must always use appropriate Personal Protective
Equipment (PPE).
Before starting work, ensure that all machine
guards are in good conditions and fully functional.
During operation, the machine can throw material
from the back. Prevent people and animals from
approaching the operational area.

19Blue Diamond® Attachments
Once all the checks above have been done, start
tractor and the tiller as follows:
• Start the tractor and engage the tractor PTO at
low RPM, making sure that the tiller is NOT in
the raised position but is close to the ground,
then increase speed of the engine to 540 RPM.
• Lower the tiller to the ground and
simultaneously start driving the tractor at low
speed. Subsequently, increase the ground
speed depending on ground conditions.
• If the environmental temperature is very cold,
it’s recommended to wait a few minutes with
the PTO of the tractor at a low rate before
lowering the tiller completely on the ground.
• Drive for a while operating the tiller, then stop
the tractor to check the quality of the work
performed. If you need to get o the tractor, lift
the tiller just out of the ground, reduce engine
speed, and disengage PTO, set the parking
brake, stop engine, and remove the ignition
key.
• If the working depth and/or soil texture are not
as desired, correct them by adjusting the skids
and/or the rear cover (see Adjustment section
on page 20).
4.2 Operating Instructions
During operations:
• Always keep the tractor engine at the RPM
rate ensuring the tiller is given the right power
required for use.
• Always keep a tractor speed adequate to
conditions of the soil to be worked (from 2 to
10 km/h approximately). Reduce speed in the
case of hard or stony soils.
• Choose a driving pattern that provides the
maximum pass length and minimizes turning.
• When working in the hills, if you can do
“climbing” in the sense of the slope, in any
case do not work along the hillsides, making
the steps from top to bottom to reduce the
terrace. Where possible always try to “work up”
the slope. If this is not possible avoid hoeing
along the contours of the hill and hoe up and
down the slope to avoid a terracing eect.
• Always perform changes and reverse of
direction with PTO disengaged and the tiller
slightly lifted from the ground to avoid damage
to the machine.
• Periodically check for foreign objects wrapped
around the rotor shaft and remove them, after
disengaging PTO, turn o tractor engine,
remove ignition key, and waiting for all moving
parts to stop.
• If blades strike a foreign object, or in case of
prolonged intervention of the clutch due to an
object wedged into the rotor, stop operating
immediately, idle the engine speed, and
disengage the PTO. Wait for stopping of all
rotating parts, then raise the implement, and
proceed to removing the object, after stopping
the tractor, setting the parking brake, stopping
the engine, and removing the ignition key.
Repair any damages immediately, and make
sure rotor and blades are in good condition
before restarting operation.
4. Operation
WARNING
Before conducting the above inspections and
service, make sure the tractor engine is o, all
rotation parts are completely stopped and the
tractor is in park with the parking brake engaged.
Make sure the tiller is resting on the ground
or securely blocked up and the tractor lifting
hydraulics locked.

Blue Diamond® Attachments20
• Avoid friction clutch overheating caused by
too long or too frequent slipping of the clutch,
since this can damage the friction plates and
clutch parts.
Typical problems that may occur operating the
tiller are described in the Troubleshooting section
on page 30 along with their solutions.
4.3 Adjustments
Lower Clevises Adjustment
It is possible to adjust the lower hitch position
by loosening the U-bolts [Figure 5] and sliding
the clevis (Item 2) [Figure 5] on the square tube.
Tighten the U-bolts after making any adjustment
required.
Figure 5
Friction Clutch Adjustment
The PTO drivehsaft and friction clutch are
designed to transmit adequate power to the tiller.
The clutch preserves the machine from overloads,
through the slipping of friction discs, and limits the
max torque transmissible to a calibrated value set
at factory. It is recommended, therefore, to leave
this value unchanged to avoid damages to the
machine or to the driveshaft.
Figure 6
An adjustment can be done, however, when the
clutch slipping is too frequent, which means that
the calibration is too low.
In this case, the tightening of nuts over the
compressed springs will give an increase in torque
transmissible.
On the contrary, a loosening of the nuts over
the springs will give a decrease in torque
transmissible.
NOTE: Excessive tightening of the springs can
prevent the clutch from slipping and to protect the
machine from overload. Make sure that the height
of all the compressed springs is equal to prevent
clutch malfunctioning.
4. Operation
WARNING
All adjustment operations must be performed
with the tractor engine o, the PTO disengaged,
the tiller lowered to the ground or on security
stands, the parking brake set, and the ignition
key o.
IMPORTANT
For details about clutch adjustment, refer to the
user manual of the Manufacturer of the driveshaft
installed.
The Manufacturer is not liable for damages
resulting from a wrong modification of the clutch
calibration.