Agriweld Prevent 4-Leg User manual

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OPERATOR MANUAL
Prevent 4-Leg
Agriweld Ltd
Main Street
Garton-on-the-Wolds
Driffield
YO25 3ET
SCAN ME FOR
WEBSITE LINK

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Contents
Page 3
User Information, Product Technical Information
Page 4
Qualification & Training
Page 4-6
Safety
Page 6
Risk of Overloading
Page 6
Pre-Use Checks & Storage
Page 7
Attachment & Adjustment
Page 8
Hydraulic System
Page 9
Rules of Conduct
Page 9-11
Auto Reset
Page 12-14
Main Assembly
Page 15
Shear Bolt Leg Socket
Page 16-17
Snap Bar Leg Socket
Page 18-19
Auto Reset Leg Socket
Page 20
Replacing Points
Page 21-24
Rear Hitch adjustment & options
Page 25
Stabilising Leg
Page 26
Electric Light
Page 27-29
Maintenance & Safety
Page 30
Road Transport Regulations
Page 31-33
Risk Assessment
Page 34
Product Decals
Page 35
Manufacturer’s Warranty
Page 36
Declaration of Conformity
Page 37
Maintenance Page

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USER INFORMATION
This manual contains basic advice, which should be observed during setting-up, operation and
maintenance. It must be read by all personnel who may operate this product prior to use and be available
at all times to each potential operator.
If safety instructions are not complied with, it can lead to the risk of injury to yourself and others as well
as damage to the environment or to the product. Non-compliance to the safety instructions can also lead
to claims for damages becoming invalid.
The specifications, descriptions and illustrations in this manual are accurate at the time of publication but
may be subject to change.
This product is not to be used for any other purpose than for which it is intended. Damage and injury
caused as a result of incorrect usage is at your own risk.
Product Technical Information
WEIGHT
1300KG
LLC
N/A
HORIZONTAL CENTRE OF GRAVITY
N/A
MAX CAPACITY
N /A
This information is shown on your product’s serial plate.
New equipment - be careful!
It is very important to be careful when new equipment is going to be used for the first time. Incorrect
mounting of equipment and operational errors can lead to expensive repair work and operational losses.
Your warranty with Agriweld is not valid if the instructions in this operating manual are not followed
correctly.

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QUALIFICATION AND TRAINING
•Experienced* personnel only may perform any work on, or with the product. Statutory minimum
age limits must be observed.
•Only trained and instructed staff, with the correct certification or licence to use, operate, set up
and maintain this product should be authorised to do so. Individual responsibilities of personnel
concerning operation, setting up, maintenance and repair must be clearly established.
•Define the product operator’s responsibilities – also with regard to observing traffic regulations.
The operator must have the authority to refuse any instructions issued by third parties, which
contravene safety.
•Persons undergoing training or instruction should not be allowed to work on or with the product
unless they are under the constant supervision of an experienced person.
•The use of spare parts, accessories and ancillary equipment not supplied and/or not approved by
Agriweld could have detrimental effects to this product or its functions and hence impair the
active and/or passive driving and/or operational safety (accident prevention).
•Agriweld shall not be liable for any damage caused by the use of spare parts, accessories and
ancillary equipment not supplied and/or approved by Agriweld.
•Conversions of, or modifications to the product may only be carried out after consultation with
Agriweld.
*Experienced personnel are classed as those persons with appropriate engineering knowledge and
training from an approved provider, supplemented with experience of working with this type of
activity.
GENERAL SAFETY
Read the instruction manual and follow the instructions given.
Take care when hitching up or unhitching the product to and from the tractor via the linkage.
It is forbidden to allow any persons to sit or ride on the product at any time.
If relevant, the tractor should be fitted with enough front-end weights for stability and to maintain
secure steering. This is dependent upon many variables, including those such as ground conditions,
working depth and soil type, etc.
Driving, steering and braking characteristics can be influenced by Agriweld products. The operator must
ensure adequate steering and braking ability.
Use the handler’s position control when coupling the product to the tractor.
Do not stand between tractor and product during connection or while it is being raised/lowered on the
tractor linkage.

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The tractor's lower link arms should be stabilised before driving on a public road so that the product and
tractor lower link arms do not touch the tyres during transport.
Make sure that all nuts and bolts are always fully tightened.
NEVER stand or work beneath a suspended load unless the full weight of the product is supported fully
by suitable chocks or stands capable of carrying the products entire weight and bulk.
Ensure that the handler cannot roll away by use of a park brake or wheel chocks.
Always keep clear of the unit during use to avoid being hit during working process.
The user is responsible for ensuring the product complies with the law when driving on public roads and
to check each time before taking the product on the highway that the lights are in full working order.
Always lower the product when attached to a handler whilst parked.
Never perform any adjustments to the product whilst mounted, unless the handler is stopped, turned
off and the product is resting on the ground where possible.
DANGERS, OPERATING ERRORS AND EXEMPTION FROM LIABILITY
1. No responsibility will be accepted for possible dangers arising from operations complying with the
designated use.
2. Agriweld shall not be liable for any damage to agricultural produce and other items, which occurs as a
result of normal operating, adjustments errors, failure by any means or incorrect usage.
3. Agriweld accepts no liability for any damage caused as a result of operations not complying with the
designated use of the product. This also applies to damage to agricultural produce caused by certain
external influences, which cannot be avoided with the current state of the art.
Any warning signs/instructions on the product provide important information and must be observed.
Ensure that you are familiar with the product before starting work.
Check round the product for any noticeable damage, or missing parts before starting work.
It is advisable that the operator does not wear jewellery and baggy clothing to avoid the risk of snagging
and trapping.
Ensure that you are working in an area clear of obstructions and watch out for wandering individuals
(particularly children!).

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PLEASE NOTE: If relevant, forklifts and lifting equipment are subject to LOLER inspection/report within
12 months of service from new, by reputable engineers and records kept and maintained.
PRE-USE CHECKS & STORAGE
Before operational use, it is important to inspect the handler and attachment with the recommended
pre-use checks to prevent damage or danger.
•Check that the handler and its hydraulic system are in full working order.
•Check all mounting/securing pins are present and do not appear to be worn or missing. Replace
as required.
•Physically check all nuts and bolts or other fixings are present and tight. Do not use if any are
missing or broken.
•Visually check welds for cracks - this can compromise the strength and operational use of the
attachment and may pose a health and safety risk.
•If relevant, check round all hydraulic hose and connections for leaks and damaged hydraulic
pipe. Replace as required. Do not attempt to repair hydraulic hose.
•Check for any potential damage to the serial plate as this helps to identify the attachment, its
origin of manufacture and will be required to order spare parts if needed.
•Check all ancillary parts are present, in good condition and that none are defective or missing.
•When attachments are to be stored away when not in use, correct storage methods are
important in protecting the paintwork. The attachment should be cleaned down thoroughly and
stored inside where possible, always detach any other attachments from the Agriweld product
when you have finished using them.
•If you need to keep the attachment/product mounted to the forklift/loader/tractor in between
use, it is important to ensure the attachment/product is lowered to ground level, the vehicle has
the hand brake/equivalent and that the engine is tuner off.
•Always store your attachment in an area free from obstruction so not to cause hazard to others
or damage to the attachment.

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ATTACHMENT AND ADJUSTMENT
Please note that this is generalised information and connection may vary depending the type
of mounting requirements of the attachment to handler. Operators should also use their own
judgement and *experience when mounting this Agriweld product to the handler.
Attach the Cultivator to the tractor using the tractors rear 3-point linkage. It is important to the function
of the cultivator to ensure that the product is running level to allow optimum level of soil disturbance
and to prolong the lifespan of the wearing parts. To do this please adjust the top link up or down to
ensure the main frame is running parallel to the ground.
Connect the lights unit using the 7-pin plug, to the back of the tractor and test the lights to ensure they
are working correctly - you may need another person to help you ensure the rear brake lights and
indicator lights are working as they should.
Please ensure that the cultivator is mounted correctly to the tractor rear 3-point linkage before use.
Check that all nuts and bolts are correctly tightened, and none are missing.
For folding and/or auto-reset products only:
Only connect or disconnect the hydraulic pipes to and from the tractor when the oil pressure in both the
tractor and product has been released.
Connect the hydraulics to the tractors rear hydraulic supply using the pipes and fittings provided with
the cultivator. Check that the hydraulic hoses are free of damage and not routed in a position to fowl
when lifting and lowering the cultivator on the tractor’s linkage.
EXPORTED PRODUCTS: If your product is being exported out of the UK, the hydraulic oil has to be
removed from the system prior to shipping. Please be aware that you will need to plug your hydraulic
couplings in to the forklift/loader and run the product through with hydraulic oil in the first instance
and prior to operation.
YOU ARE NOW READY FOR OPERATION.

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HYDRAULIC SYSTEMS
Rules of conduct when handling the hydraulic system, if relevant.
DANGER!
The hydraulic system is under high pressure! Fluids escaping under high pressure can penetrate the
skin and cause serious injuries. If any such injuries occur, always seek medical treatment/advice
immediately.
Important:
Only experienced* and/or trained personnel may undertake any repairs or maintenance on the
hydraulic system.
Only work only on the hydraulic system when the hydraulic system is depressurised, and the drive is
switched off.
It is especially important that all hoses and connections are checked frequently for leakage and any visible
external damage. Porous and defective hoses must always be replaced immediately. DO NOT ATTEMPT
TO REPAIR THEM.
The hydraulic hoses should not be connected to or removed from the hydraulic system on the tractor
unless the oil pressure in both the tractor and cultivator has been released.
Oil leakage from damaged hoses and connections can cause fatal injury and possible fire risk.
ATTACHMENT OF HYDRAULIC FOLDING PIPES (For Hydraulic Folding Models Only)
Following the advice provided on the previous page, when the cultivator is attached to the rear of the
tractor, plug the hydraulic folding pipes into the tractor spool. Only when in the field and prior to
working, remove the folding locking bar and operate the spool to lower the wings until they stop. The
valve fitted to the hydraulic cylinders (folding) locks the wings in position and will not move until oil
pressure is supplied again.
If the wings appear to be sagging or uneven, Agriweld can supply adjustment stars to level the product.
If relevant, you must always transport a hydraulic folding cultivator in its folded position.

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RULES OF CONDUCT FOR GENERAL OPERATION
The following points must always be observed before and during operation:
-Read the risk assessment and operator manual thoroughly.
-Only *experienced and trained personnel should use this product
-Never leave the product unattended.
-Check the product regularly for oil leakage. Replace defective components immediately.
-The user is responsible for damage to the produce caused by oil leakage.
-Check the product for dirt accumulation and clean it on a regular basis.
-Perform a regular greasing routine. The cultivator needs to be well greased at all times.
-Replace wearing points in good time so not to cause damage elsewhere.
AUTO RESET PRESSURE AMENDMENTS
(Applicable to auto-reset models only)
The auto reset pressure is pre-set at around 45-50 bar for dispatch. You will need to adjust this setting
to your own conditions on first use. If the legs trip too easily or constantly, the pressure can be
increased slightly. If the legs do not trip at all the pressure requires decreasing to prevent product
damage, not covered under warranty. Please see Charging Oil Pressure below for instructions. PLEASE
NOTE: The pressure may need adjusting for different working locations as soil conditions can vary.
Prior to each use, the pressure should be visually checked to ensure that it has not reduced or
whether adjustment is required. The pressure gauge is situated under the headstock on the main
frame. If for any reason the pressure has reduced, the product can still be operated but excessive
tripping of the legs may occur, and it will need re-charging from the tractor.
Changing Auto Reset Oil Pressure –connection to tractor & procedure
Auto-reset models only
Connect the hydraulic pipe situated off the pressure gauge to the tractor spool, open the tap (a couple
of turns will suffice) operate the tractor spool to pump oil into the system and until the gauge needle
reaches selected pressure bar. The pressure can be dropped by operating the spool the other way to let
the oil back out. Once desired pressure is reached turn off tap to lock and remove pipe. Adjust the
pressure to suit ground conditions and depth as needed. DO NOT over pressurise the system or the leg

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will not ‘trip’ if required. This may take some effort to gauge the required pressure to suit the
application which is variable for all instances.
If in doubt, always run with too little pressure, you can make small adjustments throughout work to
increase pressure until you are satisfied. The leg is better tripping too ‘keenly’ rather than not at all.
The max system pressure is limited by a pressure relief valve fitted in the auto reset
hydraulic circuit (see below). If you need to adjust the pressures outside the normal
adjustment scope, please follow the instructions below, otherwise, the next stage can
be skipped.
AUTO RESET SYSTEM –Break back adjustment continued ..
This step is for altering the auto reset pressures outside the normal scope of adjustment only
And is for increasing and decreasing maximum system pressure in the system.
1. Remove topmost valve cap to reveal grub screw –17mm spanner required
2. Slacken lock nut –17mm spanner required also
3. Run the hydraulic service on tractor
4. Using Hex key, turn inner adjuster screw (located under the top cap) - 5mm size required
i. Clockwise to increase pressure
ii. Anti-clockwise to decrease pressure
Top cap
- 1
Lock nut - 2
containing
Adjuster
Screw
Pressure
gauge