A HYDRAULIC POWER PACK HAS BEEN DESIGNED TO BE USED WITH A 10T TENSIONER ( NOT INCLUDED WITHIN THIS BTI). THE POWER PACK IS CONTAINERISED WITHIN AN OUTER SHELL OF DUCTILE CAST IRON. CONTAINED WITHIN THE UNIT IS A SINGLE ELECTRIC MOTOR AND PUMP SET, OVERHEAD RESERVOIR, ELECTRIC MOTOR STARTER PANEL AND A HPU CONTROL PANEL. THE SINGLE ELECTRIC MOTOR DRIVES THE THREE PUMPS FROM A COMMON SHAFT. THE MAIN DRIVE PUMP, WHICH IS AN AXIAL PISTON OPEN LOOP PUMP, THIS PUMP OPERATES IN EITHER A LOAD SENSING OR A PRESSURE CONTROL MODE. THERE ARE VARIOUS VALVES WHICH ARE MOUNTED TO THE FRAMEWORK, WHICH ARE USED FOR THE PUMP CONTROL FUNCTIONS. THE GRIP/BRAKE PUMP IS A TANDEM GEAR PUMP WHICH USES A RELIEF VALVE TO LIMIT OUTPUT PRESSURE FROM EACH PUMP SECTION. THE RELISF VALVES HAVE VENTABLE PILOT LINES FITTED WITH BALL VALVES FOR DUMPING PRESSURE, WHILE STARTING AND STOPPING THE ELECTRIC MOTOR. THE SEAWATER/OIL COOLER IS USED TO DISSIPATE ANY HEAT WHICH MAY HAVE BUILD UP WITHIN THE SYSTEM, THE RETURN FLOW FROM ALL OF THE THREE PUMPS GOES BACK TO THE RESERVOIR VIA THE COOLER. THE STARTER PANEL CONTAINS ALL THE NECESSARY COMPONENTS FOR STARTING AND STOPPING THE ELECTRIC MOTOR, ALONG WITH ANY POWER TRANSFORMERS THAT COULD BE OPERATING WITHIN THE SYSTEM. ALSO, THERE IS A HPU CONTROL PANEL, THIS HOUSES THE PLC, WHICH IS USED TO CONTROL THE MAIN DRIVE PUMP FUNCTIONS, THERE IS ALSO A HUMAN MACHINE INTERFACE (HMI) PANEL THIS IS FOR IN-PUTTING THE VARIOUS CONTROL PARAMETERS. SPECIFICATIONS OF HYDRAULIC HPU POWER PACK: VOLTS : 440V AC, 3PHASE AMPS STARTING : 125A FREQUENCY : 60HZ POWER : 55KW COOLING WATER : 90 @ 10 MAX L/MIN @ BAR WEIGHT : 7.5 TE TANK VOLUME : 250 LTRS DIMENSIONS : L 3.10M X W 2.44M X H 2.7M THE HYDRAULIC POWER PACK IS EQUIPPED WITH 55 KW PUMP AND MOTOR SYSTEM, OIL RESERVOIR IS 250 LTRS. THE SYSTEM HAS AN AUXILLARY PUMP FOR TENSIONER OPEN AND CLOSE AND ONE BRAKE PUMP WHICH FEEDS A MANIFOLD BLOCK ON THE TENSIONER. THE OPERATING PRESSURE IS 210 BAR AND MAXIMUM FLOWS ARE MAIN PUMP 170 LTRS/MIN, AUX 16.5 LTRS/MIN, BRAKE 8.74 LTRS/MIN. OIL IS WATER COOLED.

CLASSIFICATION HAS BEEN DETERMINED IN ACCORDANCE WITH THE FOLLOWING:- GENERAL INTERPRETATIVE RULES (GIR)S: GIR 1 HAS BEEN USED TO CLASSIFY THIS PRODUCT BY THE TERMS OF HEADING 8412 - OTHER ENGINES AND MOTORS. GIR 6 HAS BEEN USED TO CLASSIFY THE GOODS TO SUBHEADING LEVEL 8412 29 - HYDRAULIC POWER ENGINES AND MOTORS. CN CODE 841229 89 - OTHER THAN HYDRAULIC FLUID POWER MOTORS TARIC CODE 84122989 90 - OTHER THAN FOR USE IN CERTAIN TYPES OF AIRCRAFT. ALSO CLASSIFIED IN ACCORDANCE WITH: HARMONISED SYSTEM EXPLANATORY NOTES (HSEN'S) NOTE (B (6) TO HEADING 8412. COMBINED NOMENCLATURE EXPLANATORY NOTE (CNEN'S) TO HEADING 84122120 TO 84122989