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Two hydraulic supplies are required, ported as shown below. The maximum working pressures
are shown in the table 1 below and pressure limiting valves must be fitted into the supply to
limit the pressures to these levels.
A relief valve should also be incorporated in the return line. This is to prevent excessively high
pressures in the annular side of the hydraulic cylinders should the return to tank become
blocked for any reason.
The oil supply must be clear and free from contamination. A good quality ISO32 grade hydraulic
oil, e.g. Shell Tellus 32 or equivalent, is suitable.
The weight of the tool is 165Kg
.
TABLE 1.
Function
Working Pressure
Swept Volume
psi
bar
ml.
U.S. Gallon
Working Stroke
10,000
690
1670
(0.44)
Return Stroke
2,750
190
760
(0.20)
Auxillary Stroke - retract
2,750
190
86
(0.023)
Auxiliary Stroke – reset
2,750
190
53
(0.014)
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.
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 14 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.
