Summary of Contents for SMD HT 230BA
- Page 1 Curvetech Technical Manual - Ref : ENG-MAN-1012.HT230BA.03 CURVETECH HT 230BA HYDRAULIC THRUSTER TECHNICAL MANUAL SMD Reference : ENG-MAN-1012.HT230BA.03.doc...
- Page 3 Curvetech Technical Manual - Ref : ENG-MAN-1012.HT230BA.03 MANUAL REVISIONS AND ADDITIONS DATE ISSUE REVISION MOD NO February 1997 February 1999 CN 00473 Page 5.2 - Removal of Distributor, 5.4 & 5.5 - Sorted Layout February 2005 Issue 3 Confidential and copyright property of Soil Machine Dynamics Limited. All rights reserved.
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Page 4: Table Of Contents
Curvetech Technical Manual - Ref : ENG-MAN-1012.HT230BA.03 CONTENTS GENERAL DESCRIPTION PERFORMANCE DATA Product Specification Performance Characteristics INSTALLATION Thruster Mounting Motor Hydraulic Connections Bearing Housing Connection Thruster Seals MAINTENANCE PROCEDURES General Maintenance Hydraulic Motor Bearing Housing Storage SPARES AND WARRANTY Spare Parts Service/Returns Procedure Damage in Shipment Warranty... -
Page 5: General Description
HT 230-2 Curvetech Thruster. Curvetech thrusters have been designed to propel the new generation of high, powered ROV’s, ploughs and similar underwater platforms. Other thrusters in the SMD Hydrovision Curvetech range are the HT 500, HTE 380, HTE 300 and HT 230. Please contact SMD Hydrovision for further information on these products. -
Page 7: Performance Data
Curvetech Technical Manual - Ref : ENG-MAN-1012.HT230BA.03 PERFORMANCE DATA WARNING: ONLY OPERATE THE THRUSTER MOMENTARILY ON DECK AS THE THRUSTER MAXIMUM RPM WILL BE EXCEEDED WHEN OPERATED OFF LOAD (IN AIR). PRODUCT SPECIFICATION Refer to drawing HT-230-D-023. Description Hydraulic Thruster Part Number HT 230-2 Hydraulic Motor Manufacturer... -
Page 8: Performance Characteristics
Curvetech Technical Manual - Ref : ENG-MAN-1012.HT230BA.03 Mounting Method Integrated Pedestal Weight (air) 14 Kg (seawater) 10 Kg PERFORMANCE CHARACTERISTICS The hydraulic system pressure and available flow determines the thrust produced by the HT 230-2 thruster. To assist the customer identify the thrust performance when fitted to his system the attached performance characteristics are provided. -
Page 9: Installation
Curvetech Technical Manual - Ref : ENG-MAN-1012.HT230BA.03 INSTALLATION THRUSTER MOUNTING The thruster is mounted off the main pedestal base, please refer to the attached drawing HT-230-D-023. The recommended fasteners for the pedestal base mounting are M12 or 2 inch 316 stainless steel bolts washers and nyloc nuts tightened to a torque of 35 Nm. - Page 10 0 bar pressure from the bearing housing oil to the case drain oil. Please contact SMD Hydrovision if alternative pressure rating is required. The following considerations should be noted.
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Page 11: Bearing Housing Connection
Curvetech Technical Manual - Ref : ENG-MAN-1012.HT230BA.03 BEARING HOUSING CONNECTION The bearing housing must be oil filled for lubrication and pressure balance to the ambient pressure. In order to provide pressure balance with the ambient pressure the bearing housing oil feed must be connected to a hydraulic pressure compensator or to the hydraulic system reservoir which should already be pressure balanced. -
Page 12: Thruster Seals
2 bar (59 psi) pressure from the motor case drain to the bearing housing. A 15 bar (217 psi) high, pressure seal is available as an option. Contact SMD Hydrovision for details. Refer to section 4 for guidance on changing seals. Issue 3... -
Page 13: Maintenance Procedures
Except for replacement of the thruster motor shaft seal, maintenance and repair by the customer is not recommended. A faulty unit should be returned to SMD Hydrovision as advised in section 5.2. A torque of 45 Nm should be applied to the motor fasteners. - Page 14 Curvetech Technical Manual - Ref : ENG-MAN-1012.HT230BA.03 C. Replace Bearings Mounted in the Bearing Housing. Bearing Life The bearing system is designed for in excess of 20,000 hours of continual operation. Water ingress, contamination and external mechanical force on the shaft can significantly reduce this life.
- Page 15 Curvetech Technical Manual - Ref : ENG-MAN-1012.HT230BA.03 " STEP 1: Hold seal ring lightly in a vice and tap out old seals using a soft hammer and tool 3. Remove old hydraulic sealant and other residue. " STEP 2: Lightly smear hydraulic sealant on the outer ring of the PTFE seal (62) and the seal mounting area of the seal retainer.
- Page 16 Curvetech Technical Manual - Ref : ENG-MAN-1012.HT230BA.03 — Complete thruster assembly is mechanically secure and shaft rotation is satisfactory. BEARING HOUSING SEALS AND SEAL RING REPLACEMENT For replacement of the seal ring it is advised the thruster bearing housing be removed from the thruster pedestal for maintenance in the workshop.
- Page 17 Curvetech Technical Manual - Ref : ENG-MAN-1012.HT230BA.03 " STEP 2: Lightly smear hydraulic sealant on the outer ring of the PTFE seal (62) and the seal mounting area of the seal retainer. Using the insertion tool (tool 3) and a vice push the PTFE seal (62) correctly orientated fully into the seal retainer.
- Page 18 Curvetech Technical Manual - Ref : ENG-MAN-1012.HT230BA.03 shaft where the seal ring will fit. " Fit the seal ring insertion collars (tool 6) to the new seal ring (5) and slide the collar retainer (tool 5) over the insertion collars. "...
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Page 19: Storage
It is recommended that a bearing housing with worn or corroded bearings should be replaced with a new bearing housing assembly and the old unit returned to SMD Hydrovision for refurbishment. If it is impractical to return the assembly the customers engineering workshop should replace the bearings considering the following: "... -
Page 21: Spares And Warranty
SMD Hydrovision. A maintenance/failure report is required with a goods return note when the product is returned to SMD Hydrovision to assist in quickly addressing a fault or cause of failure. A Purchase Order from the customer requesting service or repair is necessary before repair can commence. -
Page 22: Damage In Shipment
If the product is damaged in any way, a claim should be lodged with the carrier. Products damaged in transit should not be returned to SMD Hydrovision Ltd without first obtaining approval and specific shipping instructions from SMD Hydrovision Ltd. - Page 23 Curvetech Technical Manual - Ref : ENG-MAN-1012.HT230BA.03 CURVETECH HT 230-2 PARTS LIST ENG. DESCRIPTION PART NUMBER THRUSTER ASSEMBLY HT 230BA THRUSTER MOTOR (VOAC) * OV 3025-2 SOCKET HEAD CAP SCREW OB 1124 PLAIN WASHER OW 1027 NUT NYLOC ON 1025...
- Page 24 Curvetech Technical Manual - Ref : ENG-MAN-1012.HT230BA.03 ENG. DESCRIPTION PART NUMBER CONSUMABLE SPARES AND TOOLS KT 3002-2V BEARING HOUSING HIGH PERFORMANCE SEAL KIT OR 1075 >O= RING OV 3104 LIP SEAL OV 3105 PTFE SEAL OV 50-136 >O= RING OV 1114 SHAFT SEAL RING KT 3035 SHAFT SEAL TOOL KIT HT 230...
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