ALLSPEEDS Webtool RCV115 Programmierhandbuch
Allspeeds Ltd.
Royal Works, Atlas St
Clayton le Moors
Accrington
Lancashire
England
BB5 5LW
Tel + (0)125 615100
www.allspeeds.co.uk
WIRE ROPE CUTTER RCV115
PRODUCT CODE No. 980290
INSTRUCTIONS FOR INSTALLATION,
OPERATION & MAINTENANCE
Revision 12 issue 7. Modification No. 20972 Date 1
th
November 2017
© Copyright Allspeeds Holdings Ltd.
This ocument must not be mo ifie in any way.
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Description
This cutter is primarily intended for use on steel wire rope, having a maximum tensile strength
of 1770N/mm up to 115mm diameter. It may be used on alternative materials, such as electrical
power or communication cables, again up to a maximum of 115mm diameter. Where smaller
diameters are to be cut, effort should be made to place the material centrally along the anvil to
minimise any offset loading.
IMPORTANT
If it is required to extend the recommended use of the cutter, for instance to cut solid steel bar
or wire rope with a greater strength, please refer to the manufacturer, Allspeeds Ltd, with full
details of material size and tensile strength. Cutting unsuitable materials could result in damage
to the tool.
1. SAFETY
Before operation, read and understand this operations manual.
Whilst the tool is intended for remote or local operation sub-sea, there is no reason why it
should not be used above surface.
Ensure that the tool, hoses and pump are in good condition and properly connected.
Ensure that suitable pressure regulation equipment is used and that the unit is not subjected to
pressures higher than those stated in section 3
In all cases, where an operator is present, the safety aspects must be reviewed before the
cutting operation is commenced.
No attempt should be made to cut any material that is under tension.
Ensure that the operator is shielded from the cutting blade during the cutting operation.
When cutting near the very end of hose fragments can be expelled from the tool, please ensure
that the operator is shielded from these.
If in doubt please contact the manufacturer (Allspeeds Ltd) or an authorized distributor for
assistance.
If at any time it is necessary to carry out proof tests on the tool, e.g. after service on the
hydraulic cylinders, it must be returned to the supplier for testing where the following
procedures apply.
The maximum proof test pressure should not exceed 125% of the maximum working pressure
and this should only be done by Allspeeds using our specially adapted test rig.
The tool should be guarded during the proof test operation, and be carried out in
a safe working environment.
The proof pressure should be applied gradually, until the maximum pressure is reached.
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Important: Please note this tool is designed for intermittent subsea use. Please refer to the
manufacturer (Allspeeds Ltd) or an authorized distributor should you wish to use this tool
subsea for any period over 1 days.
CAUTION – Any modification made to this tool will invalidate the warranty and may lead to
equipment failure or personal injury. If in doubt please contact the manufacturer (Allspeeds Ltd)
or an authorised distributor for assistance.
INSPECT THE TOOL BEFORE USE
With the cutter isolated from the hydraulic supply, check the condition of the blade edge. If the
blade is damaged or blunt replace with a fresh blade before cutting. This procedure is as
described in section 8.
Ensure that care is taken when checking the blade as the edge may be sharp
Check the condition of the anvil. It is normal that the anvil will show an indent where the blade
has pressed down into it and can withstand multiple cuts, but any excessively damaged anvil
should be replaced. This procedure is as described in section 7
CAUTION – USE OF BLADES AND PARTS NOT APPROVED BY WEBTOOL MAY RESULT IN TOOL
FAILURE AND CONSEQUENTIAL DAMAGE
2. CUTTING CAPACITY
The cutter is primarily intended for use on steel wire rope, having a maximum tensile strength
of 1770N/mm and will cut ropes up to 115mm diameter. It may be used on alternative
materials, such as electrical power or communication cables, again up to a maximum of 115mm
diameter. Where smaller diameters are to be cut, effort should be made to place the material
centrally along the anvil to minimise any offset loading.
3. INSTALLATION
Tapped Holes, M12, are provided in the tool body (see sketch) which can be
used for any attachment necessary to mount the cutter. The cylinder is a pressure vessel and is
not recommended as a mounting point, the cylinder should not be drilled, machined, mutilated
or damaged in any way, any warranty could be invalidated by such actions.
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Two hydraulic supplies are required, ported as shown below. The maximum
working pressures are shown in the table below and pressure limiting valves must be fitted into
the supply to limit the pressures to these levels.
The weight of the tool is 125kg.
TABLE 1.
Function Max. Working Pressure Swept Volume Port Tapping
psi bar ml. U.S. Gallon
Main Ram Working Stroke 10,000 690 2125 (0.561) 3/8” NPT
Main Ram Return
Stroke 10,000* 690* 810 (0.21 ) 3/8” NPT
Auxiliary Cylinders Out
Stroke
(to retract anvil)
2,750 190 100 (0.026) ¼” NPT
Auxiliary Cylinders Instroke
(to reset anvil) 2,750 190 60 (0.016) ¼” NPT
*N.B. Actual pressure required to return Ram < 200 psi (1 bar)
4. OPERATION
Before deployment, function test the tool and ensure that all operators are familiar with
this procedure. ROV observation of the tool should be maintained at all time during operation.
Prior to use, ensure no damage has occurred to the blade or anvil. Ensure the anvil is
fully retracted.
DEPLOYMENT
Prior to use, the auxiliary cylinder outstroke should be operated to withdraw the anvil.
This clears access for the cutter to be placed over the wire rope.
Place the cutter over the wire rope. Ensure that the wire rope is as far into the cutter as
possible so that the anvil does not foul as it is reset. Place the cutter over the wire rope.
Ensure that the wire rope is as far into the cutter as possible
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Operate the auxiliary cylinder instroke to position the anvil fully home under the wire rope, the
main ram should not be activated until the auxiliary cylinders are operated to the full extent
of their stroke.
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Operate the main ram down-stroke to sever the wire rope. Once the wire rope is severed,
Pressurize the main ram retract port to withdraw the cutting blade. Then, and only then, retract
the anvil. It is important not to operate the anvil cylinder whilst the main ram and blade are in
the fully extended position.
If a further cut is required, the above procedure should be repeated.
N.B. Do not operate the auxiliary cylinders when the main ram is fully extended since this would
damage the anvil.
TROUBLESHOOTING
If the wire rope does not cut through completely on the first attempt, cycle the blade by
retracting it slightly and then attempting the cut again.
If the wire rope does not completely cut after multiple cycles of the blade, check the Input
pressure to the main input of the cylinder. This can be a maximum of 700 bar (10,000psi).
If the wire rope to be cut is still not severed after multiple cycles and at a pressure of 700 bar,
Retract the blade and then the anvil and return the tool to the surface for inspection of the
blade and anvil, replace if necessary.
IMPORTANT NOTE – ENSURE THAT THE BLADE IS FULLY RETRACTED AND THAT ALL PRESSURE
TO THE CUTTER IS RELIEVED AS IT IS RAISED TO THE SURFACE. FAILURE TO DO THIS CAN LEAD
TO A DANGEROUS BUILD UP OF PRESSURE IN THE CYLINDER.
5. AFTER USE
When the tool is retrieved, it should be hosed off with clean water, allowed to drain and
sprayed externally with a de-watering fluid. Before storage, inspect the general condition of the
tool. Particular attention should be paid to the anvil and blade. The anvil should be clean and
free from any damage or bruising on the outside diameter that would prevent it from retracting
properly. The blade edge should be smooth and free from any serrations. Note that a slight
ripple to the blade edge is acceptable and will not cause problems. Any minor damage can be
smoothed off with an oil stone if necessary.
6. SERVICE
It is unlikely that service would be required on the hydraulic components of the tool under
normal circumstances, but a seal spares kit is available if required. The only parts that would
need intermittent replacement would be the anvil, blade and wear plates, depending on the
frequency of use and materials being cut. These parts can be ordered up on the following spares
reference numbers, but in addition please quote the tool serial number.
Seal Kit Part Number 995290
Anvil Part Number SSC6475
Bla e Part Number 705036C
Wear Plate Kit Part Number 995079
We advise that any servicing should be carried out by an authorised distributor only.
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If required, the tool can be returned to the manufacturer, Allspeeds Ltd, for servicing and
testing.
If servicing is to be undertaken by the user, please see note on proof testing under
SAFETY (Chapter 1), and the following:-
All servicing operations should be carried out in a clean environment to prevent contamination
of the oil and mating components.
Care should be taken with all mating areas ie. threads and sealing faces, as any damage or
abrasive contamination could cause galling or seizing on re-assembly.
The cylinder is a pressure vessel and should not be drilled, machined, mutilated or damaged in
any way for mounting purposes or to assist in its removal for servicing, any warranty could be
invalidated by such actions.
The use of stilsons to remove the cylinder is not recommended as damage will occur.
IMPORTANT: Please note this tool is esigne for intermittent subsea use. Please refer to the
manufacturer shoul you wish to use this tool subsea for any perio over 14 ays.
7. REPLACEMENT OF THE ANVIL
Remove the two Sliding Block Screws, Washers and Sliding Blocks 035082, 080956 and 7090 7
The Anvil SSC6 75 can now be removed attached to the Anvil Bracket 76517 , knock out the
Slotted Spring Pin 030820 this will disconnect the Anvil Bracket and free the Anvil
Re assembly is the reverse of the above.
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8. REPLACEMENT OF THE CUTTING BLADE
First withdraw the anvil as shown below by applying pressure to the auxiliary ports.
Pump out the main ram until the blade spring pins 030636 can be seen in the opening of the
cutter body.
The two pins are ¼” (6.35mm) diameter and they should be knocked out enough to release the
blade.
With the pins removed the blade can be taken from the cutter, gloves should be worn to
prevent cuts from any sharp edges that may be present on the blade after use.
Re-assembly is the reverse of the above process.
9. REMOVAL OF THE MAIN CYLINDER
If it is necessary to renew the hydraulic seals, the cylinder must be removed from the tool. As an
aid to this, 2 off tapped holes are provided in the cylinder end face. These are M8 x 8 deep on
100mm centres.
First, pump out the ram and remove the blade, again as described above in section 8.
To use the holes in the top of the cylinder first remove any couplings, then the blanking screws
035081 and fasten a piece of flat bar, typically 30x10mm section and 900mm long centrally to
the top of the cylinder. This can be used to loosen or re-tighten the cylinder. Do not use Stilsons
to remove the cylinder as damage will occur.
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Unscrew the cylinder 728060 and remove from the assembly, it will come free but still attached
will be the ram 76 098.
Put the assembled parts into a plastic dust bin or similar vessel, fit the coupling to the top of the
cylinder, attach a hand pump to the coupling and pump out the ram, importantly, by han .
The ram will now be free of the cylinder and all seals will be accessible.
To re assemble, fit the ram into the assembly, locate the blade and fit the spring pins, put grease
on the threads and screw in the cylinder using the two tapped holes and the flat bar, remove
the bar, replace the screws and fit the coupling and bonded seal.
The tool is now ready for use.
Views below shows other components in the cutter not previously mentioned with their part
numbers.
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This RCV115 cutter is compatible with the following optional extras, not supplied as standard.
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