Frontier HP2134, HP2025 User Manual
OPERATOR'S MANUAL
HYDRAULIC PUMP
HP2025-HP2134
OM 0399HP-A
05/11
TABLE OF CONTENTS
SPECIFICATIONS ........................................................................................................................................... 3
INTRODUCTION – TO THE PURCHASER ................................................................................................... 4
SAFETY PRECAUTIONS ............................................................................................................................... 5
Before Operation ............................................................................................................................ 5
Notice ............................................................................................................................................. 6
The Hydraulic Pump ...................................................................................................................... 6
Before Operation ............................................................................................................. 6
Hydraulic Pump Operation .............................................................................................. 7
The Tractor .................................................................................................................................... 8
General Information ......................................................................................................... 8
Operating the Tractor ...................................................................................................... 8
During Operation ............................................................................................................. 8
Maintenance .................................................................................................................................. 9
Transport ........................................................................................................................................ 9
Storage ........................................................................................................................................ 9
SAFETY DECALS ................................................................................................................ ................... 10-11
ASSEMBLY ............................................................................................................................................... 12-19
Installation of the Hydraulic Pump ............................................................................................... 12
Hydraulic Oil Fill-Up ..................................................................................................... 12
Installation of the Driveline ........................................................................................... 12
Adjusting the Three Point Hitch ................................................................................... 12
Installation of the Quick Couplers ........................................................................... 13-14
Installation of the Hose Supports ............................................................................ 15-16
Installation of the Wiring Harness ........................................................................... 17-18
Installation of the Hoses .............................................................................................. 19
Installation of the Hydraulic Pump with a Quick Hitch Cat. 1 ....................................... 20
Installation of the Hydraulic Pump with a Quick Hitch Cat. 2 ....................................... 20
Installation of the Hydraulic Pump with a Three Point Hitch Cat. 1 .............................. 21
Installation of the Hydraulic Pump with a Three Point Hitch Cat. 2 .............................. 22
Determining Driveline Length ...................................................................................... 23
Connection the Driveline to the Tractor ....................................................................... 24
Connecting the Hoses and Wiring Harness ................................................................ 25
Installation of the Oil Cooler 5RDF0036 – Option .................................................. 26-27
OM 0399HP-A
1
TABLE OF CONTENTS
OPERATION ................................................................................................................................................ 28-31
Preparation ..................................................................................................................................... 28
Counterweights .............................................................................................................. 28
Operation ........................................................................................................................................ 29
Checking the Oil Temperature ........................................................................................ 29
Checking the Hydraulic Oil Level .................................................................................... 29
Checking Oil Level of the Multiplicator ........................................................................... 29
Removing the Hydraulic Pump ........................................................................................ 30
Reconnecting the Hydraulic pump .................................................................................. 31
MAINTENANCE ................................................................................................................................... 32-40
Lubrication & Periodic Maintenance ................................................................................................ 32
Oil Fill-Up ......................................................................................................................... 33
Oil Change ....................................................................................................................... 33
Replacing the Oil in the Multiplicator ................................................................................ 34
Recommended Hydraulic Oil ........................................................................................... 34
Cleaning the Oil Strainer – without an Oil Cooler ............................................................ 35
Cleaning the Oil Strainer – with an Oil Cooler ................................................................. 36
Instruction for Valve Adjustment ...................................................................................... 37
Troubleshooting .......................................................................................................................... 38-39
Electrical Diagram ............................................................................................................................ 40
PARTS ................................................................................................................................................ 41-53
Introduction .......................................................................................................................................... 41
Hydraulic Pump and Tank .............................................................................................................. 42-43
Miscellaneous ................................................................................................................................. 44-45
Hydraulic and Electrical System ...................................................................................................... 46-47
Hose Supports ................................................................................................................................ 48-49
Hydraulic Block ................................................................................................................................... 50
Hydraulic Pump .................................................................................................................................... 51
Multiplicator .......................................................................................................................................... 52
Oil Cooler 5RDF0036 - Option ............................................................................................................. 53
Driveline ............................................................................................................................................... 54
TORQUE SPECIFICATION TABLES .................................................................................................. 55-57
OM 0399HP-A
2
SPECIFICATIONS
Features and Specifications
Width (with counterweights) 38" (60") 38" (60")
Transport Width
Height
Length 30" 30"
Hydraulic System
Hoses 3/4" 3/4"
Hydraulic Protection
Tank Mounted Strainer
Tank Mounted Return Filter Standard with breather Standard with breather
Hose Protection
Pump Manufacturer
Pump Description
Gearbox Manufacturer
Gearbox Description
Tractor RPM 540 540
32 cc/rev. Model 2.5PB (
HP2025 HP2134
44" 44"
47" (55" with oil cooler) 47" (55" with oil cooler)
16 gpm at 2700 psi 20 gpm at 3000 psi
Relief valve at 2700 psi Relief valve at 3000 psi
Standard Standard
Standard Standard
Salami Salami
Gear pump
Heavy Duty Series)
Breveni Breveni
Model ML52 Model ML52
40 cc/rev. Model 3PB (Heavy Duty Series)
Gear pump
Pump RPM
PTO Manufacturer
PTO Description 40 40
Parking Stand
Hitch Category
Quick Hitch Compatibility ASABE Compatible Cat. 1 & 2
HP Requirements - min-max (hp)
Operating Weight (lbs) with hydraulic oil. 535 535
Shipping Weight (lbs)
Approx. Set-up Time
Capacity of 700 lbs (5 x 70 lbs each side)
Counterweight Support
Rear Attachment Bracket Standard (750 lbs) Standard (750 lbs)
Hose Support for JD3000 & JD4000
series loaders
Quick Couplers – Front & Rear 1/2" Standard 3/4" Standard
Thermal Protection Standard Standard
Pre-drilled holes for oil cooler support Standard Standard
Oil Cooler Option Option
Accepts 42 & 70 lbs John Deere Quick
1836 1836
Comer Comer
Standard Standard
Cat. 1 & 2 Cat. 1 & 2
ASABE Compatible Cat. 1 & 2
25-35 35-56
535 535
1.5 to 2 hrs 1.5 to 2 hrs
Capacity of 700 lbs (5 x 70 lbs each side)
Accepts 42 & 70 lbs John Deere Quick
Tatch Weights
Standard Standard
Tatch Weights
OM 0399HP-A
3
TO THE PURCHASER
INTRODUCTION
All products are designed to give safe,
dependable service if they are operated and
maintained according to instructions. Read and
understand this manual before operation.
This manual has been prepared to assist the
owner and operators in the safe operation and
suitable maintenance of the implements. The
information was applicable to products at the
time of manufacture and does not include
modifications made afterwards.
Read and understand this operator's manual
before attempting to put an implement into
service. Familiarize yourself with the operating
instructions and all the safety recommendations
contained in this manual and those labeled on
the implements and on the tractor. Follow the
safety recommendations and make sure that
those with whom you work follow them.
The Dealer is responsible for warranty registration of the unit you have purchased. To assist your
dealer in handling your needs, please record hereafter the model number and serial number of your
implement and tractor. It is also advisable to supply them to your insurance company. It will be helpful
in the event that an implement or tractor is lost or stolen.
Illustrations
The illustrations may not necessarily reproduce
the full detail and the exact shape of the parts or
depict the actual models, but are intended for
reference only
Direction Reference
Right Hand and Left Hand are determined by
those seen by the operator standing behind the
equipment.
MODEL :
SERIAL NUMBER :
DATE OF PURCHASE :
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4
SAFETY PRECAUTIONS
SAFETY FIRST
This symbol, the industry's "Safety Alert Symbol", is used throughout this manual and on
labels on the machine itself to warn of the possibility of personal injury. Read these
instructions carefully. It is essential that you read the instructions and safety regulations
before you attempt to assemble or use this unit.
DANGER : Indicates an imminently hazardous situation which, if not avoided, will
result in death or serious injury.
WARNING : Indicates a potentially hazardous situation which, if not avoided, could
result in death or serious injury.
CAUTION : Indicates a potentially hazardous situation which, if not avoided, may
result in minor or moderate injury.
IMPORTANT : Indicates that equipment or property damage could result if instructions
are not followed.
NOTE : Gives helpful information.
All products are designed to give safe, dependable service if they are operated and maintained
according to instructions. Read and understand this manual before operation
responsibility to be certain anyone operating this product reads this manual, and all other applicable
manuals, to become familiar with this equipment and all safety precautions. Failure to do so could result
in serious personal injury or equipment damage. If you have any questions, consult your dealer.
. It is the owner's
BEFORE OPERATION
Children and Bystanders
Tragic accidents can occur if the operator is not
alert to the presence of children. Children are
generally attracted to machines and the work
being done. Never assume children will remain
where you last saw them.
1. Keep children out of the operating area and
under the watchful eye of another
responsible adult.
2. Be alert and turn machine off if children
enter the work area.
3. Before and when backing, look behind and
look for small children.
OM 0399HP-A
4. Never carry children while operating the
machine. They may fall off and be seriously
injured or interfere with safe operation of the
machine.
5. Never allow children to play on the machine
or attachment even when turned off.
6. Never allow children to operate the machine
even under adult supervision.
7. Use extra care when approaching blind
corners, shrubs, trees, or other obstructions
that might hide children from sight.
5
SAFETY PRECAUTIONS - continued
NOTICE
A safe operator is the best insurance against accidents. All operators, no matter how experienced they
may be, should read this Operator's Manual and all other related manuals before attempting to operate
an implement. Please read the following section and pay particular attention to all safety recommendations contained in this manual and those labeled on the implements and on the tractor.
THE HYDRAULIC PUMP
Before Operation
1. Read an d understand this operator's manual
and tractor operator's manual. Know how to
operate all controls and how to stop the unit
and disengage the controls quickly.
2. Never wear loose, torn, or bulky clothing
around the tractor and implement. It may
catch on moving parts or controls, leadi ng to
the risk of accident.
3. Before the snow season, thoroughly inspect
the area where the equipment is to be used
and remove all doormats, sl eds, boards and
other foreign objects.
4. Disen gage clutch and shi ft into neutral befo re
starting the engine.
5. Do not operate equipment in wintertime
without wearing adequate winter garments.
6. Never attempt to make any adjustments while
engine is running. Read this man ual carefully
to acquaint yourself with the equipment as
well as the tractor operator's manual.
Working with unfamiliar equipment can lead
to accidents. Be thoroughly familiar with the
controls and proper use of the equipment.
Know how to stop the unit and dise ngage the
controls quickly.
9. Replace all missing, illegible, or damaged
safety and warning decals. See list of decals
in the operator's manual.
10. Do not modify or alter this equipment or any
of its components or any equipment function
without first consulting you r de aler.
11. Keep safety decals clean of dirt and grime.
7. Keep all shields in place and properly tighten
all mounting hardware.
8. Periodically, inspect all moving parts for wear
and replace with authorized service parts if
an excessive amount of wear is present.
OM 0399HP-A
6
SAFETY PRECAUTIONS - continued
Hydraulic Pump Operation
1. Before leaving the tractor unattended, take
all possible precautions. Disengage the
PTO, stop the engine and remove the
ignition key. Lower the implement to the
ground.
2. Before starting the pump, make sure there's
sufficient hydraulic oil and that hoses are
properly connected.
3. Be sure the clutch switch/lever is in OFF
position before starting engine.
4. Exercise extreme caution when operating
on or crossing a gravel drive, walks, or
roads. Stay alert for hidden hazards or
traffic.
5. Do not carry passengers.
6. If the pump starts to vibrate abnormally,
stop the engine immediately and check for
cause. Excessive vibration is generally a
sign of trouble.
7. Do not run the engine indoors except when
starting engine and transporting attachment
in or out of building. Carbon monoxide gas
is colorless, odorless and deadly.
13. Prolonged exposure to loud noise can
cause impairment or loss of hearing. Wear a
suitable hearing protective device such as
earmuffs or earplugs to protect against
objectionable or uncomfortable noises.
14. Always keep the "SMV" sign (Slow Moving
Vehicle) visible and clean.
15. Make sure the protective nylon sheat is
properly installed on the hoses since they
contain fluid under pressure and at high
heat that can cause injury.
8. Exercise extreme caution when changing
direction on slopes. Do not attempt to
operate on steep slopes.
9. Never operate pump without guards, and
other safety protective devices in place.
10. Never operate machine at high transport
speeds on a slippery surface.
11. Use extra caution when backing up.
12. Disengage power to the PTO when
transporting or when not in use.
OM 0399HP-A
7
SAFETY PRECAUTIONS - continued
THE TRACTOR
General Information
1. Read the operator's manual carefully before
using tractor. Lack of operating knowledge
can lead to accidents.
Operating the Tractor
1. Never run the tractor engine in a closed
building without adequate ventilation, as the
exhaust fumes are very dangerous.
2. Never allow an open flame near the fuel
tank or battery.
3. Make sure the shield is installed when using
PTO-driven equipment and always replace
the shield if damaged.
4. Always bring the tractor to a complete stop,
shut off the engine, lower the implement to
the ground and remove the ignition key
before leaving the tractor.
5. Never park the tractor on a steep slope.
6. Do not attempt to operate on steep slopes.
7. Use of tire chains for better traction and
stability is recommended.
8. Always drive the tractor at speeds
compatible with safety, especially when
operating over rough ground, crossing
ditches, or when turning.
9. Handle fuel with care, as it is highly
flammable.
10. Use approved fuel container.
11. Never add fuel to a running engine or a hot
engine.
12. Fill fuel tank outdoors with extreme care.
Never fill fuel tank indoors. Replace fuel cap
securely and wipe up spilled fuel.
13. Never allow anyone to operate the front
mount implement until they are thoroughly
familiar with basic tractor and implement
operation.
2. Do not allow anyone but the operator to ride
on the tractor. There is no safe place for
extra riders
14. A minimum 20% of tractor and equipment
weight must be on the tractor front wheels
when attachments are in transport position.
Without this weight, tractor could tip over,
causing personal injury or death. The weight
may be attained with a loader, front wheel
weights, ballast in tires, front tractor weights
and/or on the power pack. Weigh the tractor
and equipment. Do not estimate. Please
refer to tractor manual for proper ballasting
information.
15. Always make sure all hydraulic pump
components are properly installed and
securely fastened BEFORE operation.
During Operation
1. Do not allow anyone to ride on the
tractor/implement at any time. There is no
safe place for passengers on this
equipment. The operator MUST sit in the
tractor seat.
2. Eye and hearing protection is recommended
when operating the hydraulic pump.
3. Operate only during daylight hours, or when
the area is well lit with bright artificial light.
4. Disengage the PTO (turn to “OFF”), place
the transmission in neutral, set the parking
brake, shut off the engine and remove the
key, and make sure rotating components
have stopped BEFORE leaving the
operator’s seat.
5. Inspect the hydraulic pump after striking any
foreign object to assure that all implement
parts are safe and secure and not damaged.
OM 0399HP-A
8
SAFETY PRECAUTIONS - continued
MAINTENANCE
1. Park the tractor/hydraulic pump on level
ground, set the parking brake, disengage
the PTO, shut off the engine, remove the
key, and lower the implement to the ground
BEFORE making any hydraulic pump
adjustments.
2. Keep the tractor/hydraulic pump clean.
Snow and ice build-up can lead to
malfunction or personal injury from thawing
and refreezing in garage.
3. Always wear eye protection when cleaning
or servicing the hydraulic pump.
4. Do not work under any part of the tractor or
hydraulic pump, unless it is securely
supported by safety stands.
5. Make sure all shields and guards are
securely in place following all service,
cleaning, or repair work.
6. Do not modify or alter this equipment or
any of its components or operating
functions. If you have questions concerning
modifications, consult with your dealer.
7. Even when stopped, the hydraulic pump
(hoses, oil tank, and pump) can contain
fluids under pressure and at high heat. Be
very careful when performing maintenance
on this equipment.
TRANSPORTATION
1. If the tractor/hydraulic pump is to be driven
on public roads, it must be equipped with
an SMV (Slow Moving Vehicle) sign.
Check local traffic codes that may apply to
unit usage on public roads and highways in
your area.
2. Be alert for all other traffic when driving the
tractor/ hydraulic pump on public roads or
highways.
3. During transport, the hydraulic pump must
be in the raised position.
STOR AGE
1. Before storing the hydraulic pump, certain
precautions should be taken to protect it
from deterioration.
2. Clean the hydraulic pump thoroughly.
3. Make all the necessary repairs.
4. Replace all Safety Signs that are damaged,
lost, or otherwise become illegible. If a part
to be replaced has a sign on it, obtain a
new safety sign from your dealer and install
it in the same place as on the removed
part.
5. Repaint all parts from which paint has worn
or peeled.
.
OM 0399HP-A
6. Lubricate the hydraulic pump as instructed
under "Lubrication" section.
7. When the hydraulic pump is dry, oil all
moving parts. Apply oil liberally to all
surfaces to protect against rust.
8. Place the dust caps on the hoses. Store
the hydraulic hoses in the hose support on
top of the oil tank and secure in place with
the connector support and the hairpins.
9. Attach the driveline to the pump with the
chain provided with the pump.
10. Store in a dry place
9
DECALS
Replace immediately if damaged
5RD2500796
5RD2500791
5RD2500795
5RD2500794
5RD2500829
OM 0399HP-A
5RD2500793
10
5RD2500797
5RD2500798
5RD2500792
DECALS
Replace immediately if damaged
5RD2500616
5RD2500785
OM 0399HP-A
5RD2500786
5RD2500822
5RD2500821
11
5RD655834
5RD655834
ASSEMBLY
INSTALLATION OF THE THREE POINT HYDRAULIC PUMP
The hydraulic pump is assembled at the factory; however it needs to be installed and connected. Use
the present manual and lay out all parts. Separate bolts and nuts into various sizes. After installation,
torque all the bolts and the hydraulic fittings according to the "Torque Specification Tables" at the end
of the manual.
Hydraulic Oil Fill-Up
The hydraulic pump is delivered
without hydraulic oil. Fill up the oil
tank according to the instructions in
the "Maintenance" section.
Installation of the Driveline
Figure 1: Remove the two M12 x
1.25 x 70 bolts (item 4) and the
nylon insert locknuts (item 5).
Connect the driveline (item 2) to the
pump's driveshaft (item 1). Attach
with the two M12 x 1.25 x 70 bolts
(item 4) and the nylon insert locknuts
(item 5). Maintain in place with the
chain (item 3).
WARNING: To avoid
serious personal injuries: If the
collar is not locked to the shaft at
tractor end and the bolts not well
tighten to the pump shaft (a
"click" must be heard), the
driveline can fly loose with great
force capable of causing serious
injury or death.
Figure 1
NOTE
installation of the pump on the
tractor, figures 20 and up do not
show the driveline.
: To better illustrate the
Adjusting the 3 Point Hitch
Figure 2: Adjust the three point hitch
at maximum height by screwing the
right arm adjustable link to its
maximum using the handle (item 1).
For the left arm, remove the linchpin
(item 2) and remove the adjustable
link (item 3) from the upper
anchoring point (item 4). Screw the
adjustable link (item 3) to the
maximum and reinstall. Make sure
the two lower arms are at the same
height.
OM 0399HP-A
4
2
3
12
1
Figure 2
Installation of the Quick Couplers
3X20 TRACTOR
ASSEMBLY
Tractor Legend:
3X20 = 3320, 3520, 3720
4X20 = 4120, 4320, 4520, 4720
Front support - fig.3
1. Install two 1 1/16"JIC x 3/4"NPT
bulkhead adaptors (item 2) on the
middle hose support (item 1) with
1 1/16" bulkhead nuts (item 3).
2. Install two 3/4"NPT x 1/2"NPT male
adaptors (item 6) followed by a 1/2"
male quick coupler, a 1/2" female quick
coupler (item 4) with their respective
dust plug and dust cap (item 5) in the
order illustrated.
Rear support - fig.4 & 5
1. Install two 1 1/16"JIC x 3/4"NPT
bulkhead adaptors (item 2) on the rear
hose support (item 1) with 1 1/16"
bulkhead nuts (item 3).
2. Install two 3/4"NPT x 1/2"NPT male
adaptors (item 6) followed by a 1/2"
male quick coupler, a 1/2" female quick
coupler (item 4) with their respective
dust plug and dust cap (item 5) in the
order illustrated.
NOTE
position of the quick couplers.
: Refer to figure 5 for the
Figure 3
Figure 4
OM 0399HP-A
Figure 5
13
ASSEMBLY
4X20 TRACTOR
Front support – figure 6
1. Install two 1 1/16"JIC x 3/4"NPT
bulkhead adaptors (item 2) on the
middle hose support (item 1) with
1 1/16" bulkhead nuts (item 3).
2. With thread sealant, install a 3/4"
male quick coupler and a 3/4" female
quick coupler (item 4) with their
respective dust plug and dust cap
(item 5).
Rear support – figures 7 & 8
1. Install two 1 1/16"JIC x 3/4"NPT
bulkhead adaptors (item 2) on the
rear hose support (item 1) with
1 1/16" bulkhead nuts (item 3).
2. With thread sealant, install a 3/4"
male quick coupler, a 3/4" female
quick coupler (item 4) with their
respective dust plug and dust cap
(item 5) in the order illustrated.
Figure 6
Figure 7
NOTE
position of the quick couplers.
: Refer to figure 8 for the
Figure 8
OM 0399HP-A
14
ASSEMBLY
Installation of the Hose Supports
NOTE: Refer to the parts section on page 50 to identify the hose supports and to figure 9a for their
exact location on the loader arm.
1. Figure 9: Attach the rear hose support (item 1)
and the fastening bracket (item 2) to the left front
loader arm (item 3) with two 5/16" NC x 1 1/4" lg
bolts, 5/16" flat washers and 5/16" NC nylon
insert nuts (items 4-14-5).
2. Figure 9: Attach the mid dle hose support (item 7)
and its fastening bracket (item 6) with two 5/16"
NC x 1 1/4" lg. bolts and two 5/16" NC nylon
insert nuts (items 8-9).
3. Figures 9: Attach the lower part of the front hose
support (item 10) and its fastening plate (item 11)
with one 5/16"NC x 3 1/2" lg bolts and one 5/16"
NC nylon insert nuts (items 12-13) and the upper
part with 1/4"NC x 6" flattened bolt, a bushing and
a 1/4"NC nut (items 15-16-17).
CAUTION
particularly with the front support (items 10-
11).
IMPORTANT
portion of the 1/4"NC bolt faces the loader
cylinder and is in a position that ensures the
cylinder doesn't interfere with the bolt.
4. A- For 3X20 tractors - fig.10a
Attach the hose support in the same location as
the tractor hose support located under the left
tractor step plate using the existing tractor bolt.
Install the round wire lock pin in the support as
shown.
On some tractor, it may be necessary to position
the support with an angle as shown on fig.10a.
B- For 4X20 tractors - fig.10
Attach the hose support (item 1) on the front
loader support plate located under the step plate
(item 2) with a 5/8" NC x 2" lg. bolt (item 3) and a
5/8" NC nylon insert nut (not illustrated). Install
the round wire lock pin (item 4) in the holes of the
support.
: Do not cover the loader arm decals
- Detail A: Make sure the flattened
:
:
Figure 9
Figure 9a
OM 0399HP-A
Figure 10a
Figure 10
15
ASSEMBLY
5. Run the hydraulic hoses from the rear of
the tractor to the front without inserting
them in the hose supports. The straight
hose fittings go on the front of the tractor.
6. Figures 11: Connect the hoses (item 2)
to the rear bulkhead adaptors (item 1).
Figure 11
7. A- Without cab
- Remove the bolt and the flat washer
that holds the left fender to the
tractor frame.
- Insert a M10 x 1.5 x 60mm bolt (not
illustrated) in the hole of the bent
section of the fastening bracket
(item 1).
- Insert the fastening bracket, from the
front to the rear, around the tractor
post (item 2) and secure with a M10
x 1.5 x 60mm bolt for the 4X20
M10 x 1.5 x 40mm bolt for the 3X20
(item 3), and the tractor flat washer
previously removed, located
between the bracket and the tractor
aisle. DO NOT use this flat washer
for the 3X20 tractor.
- After installing the hoses on the bulk
head adaptors, attach the rear hose
support (item 4) around the tractor
post inserting the front part first and
secure in place with a 3/8" flat
washer (not illustrated) and a 10mm
nylon insert nut (not illustrated).
: Figure 12:
or a
Figure 12
5
4
- Attach the rear section with a 10mm
nylon insert nut (item 5).
B- With cab
Attach the rear hose support (item 1)
and it's fastening bracket (item 2) to
the tractor post (item 3) at about 9"
from the axle's upper plate for the
3X20 series and at 6 3/4" for the 4X20
series with two M10 x 1.5 x 60mm
bolt, 3/8" flat washers and two 10mm
nylon insert nut (items 4-5-6).
OM 0399HP-A
: Figure 12A:
16
3X20: 9"
4X20: 6 ¾"
3
6
2
1
Figure 12A
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