Civemasa GDFH User manual

OPERATOR'S MANUAL
GDFHGDFH

Civemasa Implementos Agrícolas 1
GDFH
Introduction
The GDFH disk harrow is specially designed to perform
secondary tillage by clod breaking and leveling the surface,
eliminating air pockets and leaving the soil ready to any type of
crop.
The equipment tires are placed at strategic points. They are
easy to handle and can quickly set the disk harrow to transport
position, allowing it to transit at greater speeds through narrow
places and long distances.
The GDFH model also features a central articulation in the
frame with ideal buoyancy to follow the surface unevenness or
even to perform a finishing job on broad-based terraces.
This operator's manual contains the necessary information
for the best performance of this disk harrow. The operator must
carefullyreadtheentiremanualbeforeworkingwiththeequipment.
Also, read and understand the safety recommendations.
For any further clarification or in the event of technical
problems that may arise during the service, consult your dealer
and the Technical Support department of the factory. They can
ensure the fully functioning of your Civemasa disk harrow.

Civemasa Implementos Agrícolas
2GDFH
Table of contents
1. To the owner 3
2. To the operator 4 to 10
3. Data sheet 11 & 12
4. Components 13
5. Assembly 14 to 28
Using the set of wrenches 14
Assembly of bearings and spacer spools 15 to 20
Disc gangs assembly sequence 21 & 22
Assembly of disc gangs on the frame 23
Frames junction / Scrapers assembly 24
Disk harrow opening system assembly 25
Tires assembly / Drawbar set assembly 26
Hydraulic circuit assembly 27 & 28
6. Set-up instructions 29 to 33
Preparing the tractor / Preparing the disk harrow / Hitching to the tractor 29
Procedures to transport the equipment 30 to 33
7. Adjustments and operations 34 to 40
Cutting depth adjustment 34 & 35
Ways to start the harrowing 36
Direction of the maneuvers 37
Troubleshooting guide 38 & 39
Operations - Important points 40
8. Maintenance 41 to 48
Lubrication 41
Lubrication points 42
Wheelset hubs lubrication 43
Disk harrow maintenance 44
Tires inflation 45
Hydraulic cylinder maintenance / assembly 46 & 47
Hydraulic safety 48
9. Important data 49 to 51
Calculation of hourly income 49
Average income table 50
Torque table 51
10. Important 52

Civemasa Implementos Agrícolas 3
GDFH
To the owner
General information
Important
Right and left hand side indication are made observing the equipment from the rear.
To order any parts or request technical assistance services, it is required to provide
the data contained on the nameplate, which is located on the equipment frame.
• Only people who own a full knowledge of the tractor and equipment
must transport, operate and carry out any maintenance on them;
• Civemasa is not responsible for any damage caused by accident on
transporting, incorrect utilization or inadequate storage, either by
negligence and/or lack of experience from any person;
• Civemasa is not responsible for any damage caused by unpredictable
situations or the incorrect use of the equipment.
The warranty shall not be applied to any equipment or any part thereof which
has been altered elsewhere than at the place of manufacture or which the
original purchaser thereof at retail has used or allowed to be used parts, not
made or supplied by Civemasa.
NOTE
The acquisition of any Civemasa product assures to the original purchaser the following
rights:
• Warranty certificate;
• Operator's manual;
• Technical assistance by the dealer on equipment delivery.
However, the owner must check the condition of the equipment on delivery, as well as
knowing the warranty terms.
Special attention should be given to the safety recommendations, operation precautions
and maintenance of the equipment.
The instructions in this manual indicates how to get the best performance and allow
the operator to get maximum income, increasing the equipment lifetime.
This manual should be read by operators and maintenance staff.

Civemasa Implementos Agrícolas
4GDFH
To the operator
Dear operator!
Respect the ecology. Do not throw trash away. This gesture
of goodwill helps to protect our environment.
Be careful with the environment
Working safely
• Security aspects must be carefully observed to avoid accidents.
• This symbol is a warning used to prevent accidents.
• The instructions near this symbol refers to the safety of the
operator or third parties, therefore it should be carefully read
and observed. When the safety instructions are not being
followed, a serious accident or even death may occur.
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Uso de
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OBRIGATÓRIO
Products such as oil, fuel, filters, batteries and others must
not be spilt over the soil as they can penetrate the underground
layers, compromising nature. Ecological and conscious disposal
of them should be done.
Read and understand the information before making any
adjustment or maintenance.
The GDFH disk harrow is simple to operate, requiring however
the basic and essential cautions to its handling.
Always keep in mind that safety requires constant attention,
observation and prudence during the harrowing, transportation,
maintenance and storage.
Have extreme caution when operating with the power take-off
(PTO). Do not get closer during operation.

Civemasa Implementos Agrícolas 5
GDFH
To the operator
Never use your bare hands to check hydraulic leaks, the high
pressure can cause injuries.
Never attempt to change the adjustments, clean or lubricate the
equipment when the same is switched on or in movement.
Be careful while driving on slopes. Risk of overturn.
Prevent that chemical products (i.e: fertilizers, treated seeds)
make any contact with your skin or clothes.
Keep access and work places clean or free from oil and grease.
Risk of accidents.
The presence of any other people on the tractor or equipment
is stricly forbidden.
Have extreme caution when driving under electrical power lines.
Any contact may result in severe shocks, injuries or death.
For your protection and safety, always wear adequate clothes
and footwear while operating the equipment.
Always use the seat belt.
XX
Always use the safety locks to carry out maintenance operations
and to transport the equipment.

Civemasa Implementos Agrícolas
6GDFH
To the operator
• Only trained and qualified personnel are allowed to operate the equipment.
• While working or during transportation, only the presence of the operator is
allowed on the tractor.
• Do not allow children to play near or over the equipment while it is operating,
during transportation or storage.
• Have full knowledge of the soil before starting to work. Provide the delineation
of obstacles or hazardous locations. Use the speed which is suitable to the
conditions of the ground or pathways to be covered.
• Use personal protective equipment (PPE).
• Wear appropriate clothes and footwear. Avoid clothes that are either loose or
hanging from the body, which may become entangled in moving parts.
• Never operate the equipment without its proper protective devices.
• Be careful while hitching the equipment to the tractor.
• Wear protective gloves to work near the disc blades.
• Never attempt to change the adjustments, clean or lubricate the equipment
while it is moving.
• Carefully check the transport width on narrow locations.
• When setting the disk harrow to transport position, check if there are no people
or animals close or under it.
• In case of emergency, know how to stop the tractor and equipment quickly.
• Always shut down the engine, remove the key and use the handbrake before
leaving the tractor seat.
• Do not drive the equipment under the influence of alcohol or any soothing/
stimulating medicine, as it may result in a serious accident.
• In case of a fire outbreak or any possible hazard, the operator must leave the area
as fast as possible and look for a safe place. Always have emergency numbers
at hands.
• Do not allow people or animals to get under the equipment at any time.
• Whenever you unhitch the equipment, either in the field or shed, do it on a
flat and firm surface and use the parking jacks. Make sure the equipment is
properly supported.
• We suggest that you carefully read the manual, as it will be a guide for periodic
verifications that need to be done and will allow that you assure the maintenance
of your equipment.
• If there is any doubt left after reading it, ask your dealer. For more complicated
operations, there will be the right person to help you there.
• Please check the general safety instructions on the back cover of this manual.

Civemasa Implementos Agrícolas 7
GDFH
Transportation over truck or trailer
To the operator
Civemasa does not advise the equipment traffic on highways, because this
practice involves serious security risks in addition to being prohibited by the
current existing traffic law. The transportation for long distances should be done
on truck, trailer or others by following these safety guidelines:
• Use adequate ramps to load or unload the equipment. Do not make the loading
on ditch banks, it can cause a serious accident.
• When lifting with a hoist, use the appropriate points to lift.
• Underpin the equipment appropriately.
• Use chock blocks and safety chains to secure the equipment to the truck or
trailer during the transport.
• After 8 to 10 km transporting, please inspect the load condition. Repeat this
procedure every 80 to 100 km. Give more attention when transporting the
equipment on rough roads, slopes and other adverse conditions.
• Always be careful with the load height, especially when passing under electrical
power lines, bridges and others.
• Check all laws and regulations regarding the height limits and load width while
transporting the equipment on truck or trailer. If necessary use banners, lights
and other devices in order to give adequate warning to the other drivers.

Civemasa Implementos Agrícolas
8GDFH
To the operator
Lifting points
The equipment has adequate lifting points located on the frame. When carrying out
any maintenance or when transporting the equipment, hitch the cables to all lifting points.
Use chains, of at least 3 meters long, to lift the equipment safely.
Use the adequate points for lifting and be sure that the equipment is safe.
Avoid accidents.
Always keep a safe distance from the equipment.

Civemasa Implementos Agrícolas 9
GDFH
To the operator
The safety decals warn about the equipment points that require more attention and they
should be kept in good repair. If these decals become damaged or illegible, replace them.
Civemasa provides decals, upon request and indication of the respective serial number.
Safety decals

Civemasa Implementos Agrícolas
10 GDFH
Decal set
Model Serial number
GDFH decal 05.03.03.4707
Civemasa logotype decal 05.03.03.5341
To the operator
Safety decals

Civemasa Implementos Agrícolas 11
GDFH
Data sheet
NOTE The weights above were obtained using Ø 24" x 4.5 mm disc blades.
The required tractor engine power may change according to the conditions
of the field.
Type: ............................................................................................................. Disk Harrow
Model: .................................................................................................................... GDFH
Spacing between disc blades:...............................................................................195 mm
Disc blades dimension: ................................................... Ø 20" x 3.5 mm, Ø 20" x 4.5 mm
....................Ø 22" x 3.5 mm, Ø 22" x 4.5 mm and Ø 24" x 4.5 mm
Number of disc blades: ....................................... 48, 52, 56, 60, 64, 68, 72, 76, 80 and 84
Disc blade type:.................................................. Front gang - notched / Rear gang - plain
Bearings - Length: .............................................................................................192.5 mm
- Type: ........................................................Regreasable tapered roller bearings
Oil volume on the bearings: ....................................................................................110 ml
Spacer spools - Length: .....................................................................................192.5 mm
- Type: ..........................................................................................Iron cast
Axle diameter: .....................................................................................Ø 38.1 mm (1.1/2")
Hitching type: ......................................................................................................Drawbar
Tires: .......................................................................................................... 11L15 - 10 ply
........................................................................................................ 600 x 16 - 6 ply
..................................................................................................... 7.50 x 16 - 10 ply
Working speed:............................................................................................. 7 to 12 Km/h
Model Number of
disc blades
Cutting width
(mm) Weight (Kg) Tractor required (hp)
GDFH
48 4480 2490 110 - 120
52 4870 2590 120 - 130
56 5260 2760 130 - 140
60 5650 2920 140 - 160
64 6040 3100 160 - 180
68 6430 3200 180 - 200
72 6820 3300 200 - 220
76 7245 3480 220 - 240
80 7620 3660 240 - 260
84 8000 3840 260 - 280

Civemasa Implementos Agrícolas
12 GDFH
Data sheet
Dimensions for transportation and storage
Model Number of
disc blades A B C D E F
GDFH
48 5680 1200 2555 4740 1100 2400
52 6065 1200 2555 5125 1100 2400
56 6465 1200 2555 5525 1100 2400
60 6860 1200 2555 5920 1100 2400
64 7230 1200 2555 6290 1100 2400
68 7620 1200 2555 6680 1100 2400
72 8040 1200 2555 7100 1100 2400
76 8440 1200 2555 7500 1100 2400
80 8840 1200 2555 7900 1100 2400
84 9225 1200 2555 8285 1100 2400
Measures in millimeters.
NOTE
FF
DD
EE
CC
BB
AA

Civemasa Implementos Agrícolas 13
GDFH
Components
GDFH
77
88
99
99
99
99
1111
55
55
11
33
22
4466
1010
1212
01 - Front frame 07 - Drawbar set
02 - Rear frame 08 - Tractor hitch
03 - Front disc gang 09 - Transport lock
04 - Rear disc gang 10 - Transport bar
05 - Wheelset 11 - Hoses
06 - Parking jack 12 - Opening system

Civemasa Implementos Agrícolas
14 GDFH
Assembly
First of all, put the parts in a clean place to identify them easier. Check the parts using
the list that comes inside the packing box.
Using the set of wrenches
NOTE
• Use two box end wrenches (A) to tighten the nuts of the disc gangs, being one to
hold the axle nut on one side while the other tighten the nut on the other end, thereby
preventing the axle from rotating.
• Use the L-shaped wrench (B) to tighten the nuts of the bearing bolts.
• Use the L-shaped wrench (C) to tighten the nuts of the traction set.
We recommend wearing gloves, especially while assembling the disc gangs.
BB
AA
CC

Civemasa Implementos Agrícolas 15
GDFH
Assembly
Assembly of bearings and spacer spools
• Before starting to assemble the disc gangs, check the correct position of the bearings
and spacer spools:
The first and last disc on the rear gangs are smaller.
NOTE
46 disc blades46 disc blades
12 bearings12 bearings
32 spacer spools32 spacer spools
2 furrow fillers2 furrow fillers
50 disc blades50 disc blades
12 bearings12 bearings
36 spacer spools36 spacer spools
2 furrow fillers2 furrow fillers
BearingBearing
Spacer spoolSpacer spool
Furrow fillerFurrow filler

Civemasa Implementos Agrícolas
16 GDFH
Assembly
Assembly of bearings and spacer spools
BearingBearing
Spacer spoolSpacer spool
Furrow fillerFurrow filler
54 disc blades54 disc blades
12 bearings12 bearings
40 spacer spools40 spacer spools
2 furrow fillers2 furrow fillers
58 disc blades58 disc blades
12 bearings12 bearings
44 spacer spools44 spacer spools
2 furrow fillers2 furrow fillers
The first and last disc on the rear gangs are smaller.
NOTE

Civemasa Implementos Agrícolas 17
GDFH
Assembly
Assembly of bearings and spacer spools
BearingBearing
Spacer spoolSpacer spool
Furrow fillerFurrow filler
62 disc blades62 disc blades
16 bearings16 bearings
40 spacer spools40 spacer spools
2 furrow fillers2 furrow fillers
66 disc blades66 disc blades
16 bearings16 bearings
44 spacer spools44 spacer spools
2 furrow fillers2 furrow fillers
The first and last disc on the rear gangs are smaller.
NOTE

Civemasa Implementos Agrícolas
18 GDFH
Assembly
Assembly of bearings and spacer spools
70 disc blades70 disc blades
16 bearings16 bearings
48 spacer spools48 spacer spools
2 furrow fillers2 furrow fillers
74 disc blades74 disc blades
20 bearings20 bearings
48 spacer spools48 spacer spools
2 furrow fillers2 furrow fillers BearingBearing
Spacer spoolSpacer spool
Furrow fillerFurrow filler
The first and last disc on the rear gangs are smaller.
NOTE

Civemasa Implementos Agrícolas 19
GDFH
Assembly
Assembly of bearings and spacer spools
78 disc blades78 disc blades
20 bearings20 bearings
52 spacer spools52 spacer spools
2 furrow filler2 furrow filler
BearingBearing
Spacer spoolSpacer spool
Furrow fillerFurrow filler
The first and last disc on the rear gangs are smaller.
NOTE