MARINE CONTROL SYSTEM INSTALLATION AND SERVICE
Contents
1. General Description The Logicmaster Control Unit is designed for service with hydraulic clutch type reverse gears such as those manufactured by Allison Div General Motors Corp Caterpillar Tractor Twin Disc Inc The Logicmaster combines proven dependable control components into a factory assembled and tested unit ready for shipboard installation All factory adjustments are accomplished as outlined on page 4 Shipboard piping connections are made to the tapped manifold connections as specified on installation diagram page 7 Care must be exercised in the shipboard installation and piping to insure a satisfactory control installation The Logicmaster Unit should be located in close proximity to the reverse gear to minimize the length of tubing runs to the reverse gear selector cylinder the hydraulic pressure interlock connection safety drain connection to the gear sump and the engine governor Actuator All tubing runs should be securely fastened and insulated where necessary for maximum protection against vibration damage and metal to metal surface chafing Tubing runs should be located such that they will be protected and not in exposed locations susceptible to undesired usage such as foot steps or hand holds which may lead to breakage or ultimate flattening of the tubing with consequent flow restrictions Flexible connections should be provided between all engine and reverse gear mounted devices and conne2. io mmy cs es U ea os SES ees o z zEszzu2sasB b ceour PARTS LIST LM 2 LOGICMASTER UNIT P 090008 00000 DESCRIPTION huttle Valve See Bulletin B6 104 05 imer Unit See Bulletin B6 105 04 consisting of A Flow Control Valve See Bulletin B6 105 03 B Timing Volume Time In ogic Valve 15 psi See Bulletin B4 70 01 ressure Regulator See Bulletin B6 107 05 imer Unit See Bulletin B6 105 04 consisting of A Flow Control Valve See Bulletin B6 105 03 B Timing Volume Time Out ogic Valve 80 psi See Bulletin B4 70 01 ogic Valve 15 psi See Bulletin B4 70 01 ydraulic Logic Valve See Bulletin B4 70 04 110 psi ydraulic Logic Valve See Bulletin B4 70 04 35 psi ressure Indicator ircuit Plate Assembly pper Header Bar ower Header Bar Ring Seal llen Screw 8 x 1 ipe Plug ounting Screw 8 x 1 72 ounting Screw 8 x 372 ounting Screw 8 x 577 ounting Screw 8 x 4 ubplate Hydraulic Valve Mounting O Ring Seal LO pacers ounting Screw ockwasher m nclosure NEW PART NO R431005928 OLD PART NO P 061971 00000 P 064003 00000 P 061975 00002 P 063395 00005 P 062016 00000 P 062018 00000 P 064003 00001 P 061975 00002 P 063395 00006 P 062016 00004 P 062016 00000 P 062014 00000 P 062014 00001 P 063431 00000 P 090072 00001 P 062370 00000 P 063430 00000 P 049708 00012 P 0
3. This Warranty sets out the purchaser s exclusive remedies with respect to products covered by it whether for negligence or otherwise Neither AVENTICS nor any of its affiliates will be liable for consequential or incidental damages or other losses or expenses incurred by reason of the use or sale of such products Our liability except as to title arising out of the sale use or operation of any product or parts whether on warranty contract or negligence including claims for consequential or incidental damage shall not in any event exceed the cost of replacing the defective products and upon expiration of the warranted period as herein provided all such liability is terminated THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED WHETHER FOR MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR OTHERWISE No attempt to alter amend or extend this Warranty shall be effective unless authorized in writing by an officer of AVENTICS Corporation AVENTICS reserves the right to discontinue manufacture of any product or change product materials design or specifications without notice Page 16 AVENTICS Corporation 1953 Mercer Road a Lexington KY 40511 www aventics com us info us Qaventics com AVENTICS Incorporated 3426 Mainway Drive Burlington Ontario CANADA L7M 1A8 www aventics com ca info ca aventics com SM 1200 5102 May 2014 Subject to change Printed in United States AVENTICS Corporation This docum
4. 2 AVENTICS LOGICMASTER MARINE CONTROL SYSTEM INSTALLATION AND SERVICE MANUAL FOR LOGICMASTER CONTROL UNIT Part Number R431007528 P 090008 00000 WARNING INSTALLATION AND MOUNTING The user of these devices must conform to all applicable electrical mechanical piping and other codes in the installation operation or repair of these devices INSTALLATION Do not attempt to install operate or repair these devices without proper training in the technique of working on pneumatic or hydraulic systems and devices unless under trained supervision Compressed air and hydraulic systems contain high levels of stored energy Do not attempt to connect disconnect or repair these products when a system is under pressure Always exhaust or drain the pressure from a system before performing any service work Failure to do so can result in serious personal injury MOUNTING Devices should be mounted and positioned in such a manner that they cannot be accidentally operated SM 1200 5102 TABLE OF CONTENTS TITLE PAGE A GENERAL DESCRIPTION B DESCRIPTION OF OPERATION C ADJUSTMENTS amp SETTINGS D COMPONENT LOCATION amp MATERIAL LIST E SCHEMATIC DIAGRAM 8 F INSTALLATION DATA 9 G SERVICE PARTS INFORMATION 10 15 Shuttle Valve NI AININ Flow Control Valve Multi function Logic Valve Multi function Logic Valve Hydraulic Control Signal Pressure Regulator Logic Timer Unit Rexroth
5. The power boost regulator 4 is factory set at 20 psi 1 4 bar This may be adjusted to suit the final installation requirements Turning in on the regulator adjusting cap will increase the power boost Backing out on the adjusting cap will lower the boost The objective is to provide sufficient boost to prevent engine stalling during reversal maneuvers Caution should be exercised to avoid excessive power boost Final adjustments should be made during underway trials of the vessel 2 Duration of Power Boost Application The power boost is applied to the engine by the actuation of valve 3 when a direction signal is applied to the reverse gear cylinder The length of time the boost signal is applied through valve 3 is controlled by Timer Unit 2 This is factory set for approximately 5 seconds To shorten this time the adjusting screw of Timer Unit 2 should be turned out The effect of 2 setting can be observed by the response of the governor actuator In operation the power boost will be terminated by the actuation of hydraulic interlock valve 11 The setting of 2 should be sufficient to hold the power boost until engagement is completed This adjustment can be made without the engine running by operating the remote control lever and observing the operation of the governor actuator A gage can be installed in the actuator line if necessary If the engine is running the adjustment can be made by disconnecting the r
6. pneumatic devices are designed and tested for use with filtered clean dry chemical free air at pressures and temperatures within the specified limits of the device For use with media other than air or for human life support systems AVENTICS must be consulted Hydraulic cylinders are designed for operation with filtered clean petroleum based hydraulic fluid operation using fire resistant or other special types of fluids may require special packing and seals Consult the factory 2 WARNING MATERIAL COMPATIBILITY Damage to product seals or other parts caused by the use of noncompatible lubricants oil additives or synthetic lubricants in the air system compressor or line lubrication devices voids AVENTICS warranty and can result in product failure or other malfunction See lubrication recommendations below AIR LINE LUBRICANTS In service higher than 18 cycles per minute or with continuous flow of air through the device an air line lubricator is recommended Do not use line lubrication with vacuum products However the lubricator must be maintained since the oil will wash out the grease and lack of lubrication will greatly shorten the life expectancy The oils used in the lubricator must be compatible with the elastomers in the device The elastomers are normally BUNA N NEOPRENE VITON SILICONE and HYTREL AVENTICS recommends the use of only petroleum based oils without synthetic additives and with an aniline point between 180 F a
7. remotely mounted control lever The control system incorporates the following interlocks and operational features 1 Times Reversing Interlock Holds the clutch control in neutral position for a preset time on reversals ever though the remote control lever is shifted directly through neutral This allows engine speed to decrease to idle and the shaft brake to apply and stop the propeller before reversing Timing is adjustable 2 Clutch Pressure Throttle Control Interlock Monitors the buildup of hydraulic pressure in the clutch during engagement Clutch pressure must reach preset engagement level before engine speed can be advanced from the remote control station to prevent high engine speed during clutch engagement with resultant clutch wear This feature also protects the reverse gear if clutch pressure drops during operation Loss of clutch pressure releases the interlock and engine speed is reduced to idle preventing clutch damage 3 Power Boost Advances governor setting during clutch engagement to provide increased engine torque and prevent stalling as the propeller load is applied On completion of clutch engagement the boost drops off and the governor is positioned to the setting called for by the pilothouse control lever Governor power boost can be adjust for desired magnitude and duration Page 2 4 Clutch Pressure Shaft Brake Interlock Monitors the buildup of hydraulic pressure in the clutch to release t
8. 49856 00124 P 049787 00000 P 049467 00013 P 049467 00012 P 049467 00016 P 049467 00017 P 063880 00001 P 049708 00106 P 063458 00000 P 049835 00014 P 049982 00006 P 063459 00000 Page 6 COMPONENT LOCATION amp MATERIAL LIST SHUTTLE POWER BOOST REGULATOR 1 4 REVERSAL REVERSAL GOVERNOR TIMER TIMER INTERCEPT AHD TO AST TO ASTERN AHEAD 5 6 8 AHD TO AST TO GEAR GEAR ASTERN AHD PRESSURE PRESSURE INTERLOCK INTERLOCK GOVERNOR SAFETY INTERLOCK VALVE 10 11 12 NEW PART NO OLD PART NO DESCRIPTION R431005928 P 061971 00000 Shuttle Valve P 2 R431006335 064003 00000 Timer Unit Consisting of Flow Control Valve Part No R431005931 P 061975 00002 and volume time in Part No R431006229 P 063395 00005 R431005976 P 062016 00000 Multifunction Logic Valve 15 psi R431005985 P 062018 00000 Pressure Regulator R431006336 P 064003 00001 Timer Unit consisting of Flow Control Valve Part No R431005931 P 061975 00002 and Volume time out Part No R431006230 P 063395 00006 R431005980 P 062016 00004 Multi Function Logic Valve 80 psi R431005976 P 062016 00000 Multi Function Logic Valve 15 psi R431005967 P 062014 00000 Hydraulic Multi Function Logic Valve 110 psi R431005968 P 062014 00001 Hydraulic Multi Function Logic Valve 35 psi R431006263 P 063431 00000 Pressure Indicator Page 7 SCHEMATIC DIAGRAM LOGICMASTER CONTROL UNIT 7M2 Z2 Remo
9. 6 00003 O RING 3 8 O D See Kit BASE P 062000 00001 O RING 9 16 O D See Kit FILTER P 061999 00000 4 7 CAP P 061998 00000 O RING 3 4 O D See Kit U CUP See Kit O RING 5 16 O D See Kit O RING 1 4 O D See Kit 10 11 12 13 14 15 16 Recommended spare parts to be retained in stock Available in Repair Kit form Part No R431006224 P 063393 00000 1 1 00 Page 11 MULTIFUNCATION LOGIC VALVE PART NO R431005976 P 062016 00000 E e E d id j POB p j dresse Wome LL SOY L X A Pk KI S ZZ INNS BN C We L Lei N SAS LS REF QTY DESCRIPTION NEW PART NO OLD PART NO MULTIFUNCTION LOGIC VALVE 15 psi Complete R431005976 P 062016 00000 MULTIFUNCTION LOGIC VALVE 30 psi Complete R431005977 P 062016 00001 MULTIFUNCTION LOGIC VALVE 80 psi Complete R431005980 P 062016 00004 1 La BODY R431007038 P 067247 00000 2 es O RING 7 32 x 11 32 See Kit 4 1 SPRING Supply Valve R431006176 P 063075 00000 p 1 Slee O get ee EM SEAT Spring R431005946 P 061987 00000 WN COVER R431007028 P 067156 00000 SPRING Regulating 15 psi 1 1 bar R431005964 P 062012 00000 A SPRING Regulating 30 psi 2 0 bar R431005965 P 062013 00000 B SPRING Regulating 45 psi 3 1 bar R431005962 P 062011 00000 MA 1 148 1 140 1 SPRING Regulating
10. 80 psi 5 5 bar R431005489 P 060360 00000 SPRING Regulating 100 psi 6 9 bar R431006056 P 062448 00000 SCREW 8 32 x 2 1 4 Not shown R431001693 P 049109 00003 O RING 3 8 O D R431002010 P 049708 00106 Recommended spare parts to be retained in stock Available in Repair Kit form Part No R431006223 P 063392 00000 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 5 2 4 5 6 1 1 1 Page 12 MULTIFUNCATION LOGIC VALVE HYDRAULIC CONTROL SIGNAL PART NO R431005967 P 062014 00000 amp R431005968 P 062014 00001 S NEM X Zen os T TEL GAs A POT S1 A IPB a ETE JSS SS Se PIE IL ee CREF arv DESCRIPTION NEWPARTNO OLD PART No MULTIFUNCTION LOGIC VALVE 35 psi Complete MULTIFUNCTION LOGIC VALVE 110 psi Complete MULTIFUNCTION LOGIC VALVE 220 psi Complete O RING 7 32 x 11 32 Unknown See Kit O RING 3 8 x 1 2 See Kit SPRING Supply Valve P 063075 00000 VALVE Supply See Kit Gasket Body See Kit BODY Valve Seat P 064693 00000 SPRING Exhaust Valve P 060836 00000 VALVE Piston P 064692 00001 O RING 1 8 x 1 4 See Kit PISTON P 062005 00000 U CUP SEAL See Kit GASKET Cover See Kit COVER P 067156 00000 SPRING Regulating 35 psi 2 4 bar P 062013 00000 SPRING Regulating 110 psi 7 6 bar P 062448 00000 SPRING Regulating 220 psi 15 2 bar P 062549 00000 SHIMS Not shown P 053455 00003 SCREW 8 32 x 2 1 4 N
11. EAT Exhaust Valve R431005945 P 061986 00001 O RING 1 8 x 1 4 See Kit See Kit DIAPHRAGM See Kit See Kit SEAT Spring R431005946 P 061987 00000 1 HOUSING Spring R431005948 P 061992 00000 1 O RING 1 1 8 O D See Kit See Kit 1 SPRING Regulating 0 75 psi 0 5 2 bar R431005489 P 060360 00000 1 SPRING Regulating 0 140 psi 0 9 7 bar R431006081 P 062549 00000 1 SEAT Ball amp Spring R431005947 P 061988 00000 1 BALL 3 8 Dia R431001962 P 049680 00010 1 SCREW Adjusting R431005949 P 061993 00000 2 SCREW Not shown R431001693 P 049109 00003 5 O RING 3 8 O D See Kit See Kit N X zx X m esch 1 _ SEAT Spring rr Lamae P 061987 00000 Recommended spare parts to be retained in stock at all times Available in Repair Kit form Part No R431006319 P 063966 00000 Page 14 LOGIC TIMER UNIT GE Z A A NES T REF QTY DESCRIPTION NEW PART NO OLD PART NO LOGIC TIMER UNIT Complete Time In R431006335 P 064003 00000 LOGIC TIMER UNIT Complete Time Out R431006336 P 064003 00001 LOGIC FLOW CONTROL VALVE E EEN R431005931 P 061975 00002 VOLUME TIME IN for R431006335 P 064003 00000 R431006229 P 063395 00005 VOLUME TIME OUT for R431006336 P 064003 00001 R431006230 P 063395 00006 Kit Part Number R431006224 P 063393 00000 Page 15 NOTICE TO PRODUCT USERS 1 WARNING FLUID MEDIA AVENTICS
12. ctions All tubing bends should be accomplished with smooth radius bends to avoid pinching and flow restriction Important All tubing lines should be blown through with clean dry air prior to making the final connection at each end to insure that all cuttings chips dirt and foreign material is removed If brazed or soldered connections or couplings are used extreme care should be exercised to insure that flux is not introduced into the control lines All piping connections should be pressure tested to insure zero leakage For optimum service a constant 100 psi 6 9 bar air supply should be maintained for the control system Adequate precautions should be taken in the shipboard air system to insure a reasonably clean dry air supply for the control system and Logicmaster Unit operation Factory recommended control systems provide for filtering of the supply air to remove foreign material Adequate shipboard procedures must be exercised to insure that the main ship s air supply system is properly drained and maintained to prevent excessive condensation and moisture carry over into the control system supply Description of Operation This control system provides interlocked and sequenced operation of the reverse gear engagement the shaft brake application and release in coordination with the reverse gear and engine speed control to insure proper operation of the propulsion machinery no matter how the operator manipulates the
13. ead to astern and 6 for astern to ahead The shaft brake is controlled by hydraulic interlock valve 12 so that whenever clutch engagement is initiated valve 12 is actuated by the initial buildup of oil pressure in the clutch to release the shaft brake When the clutch is disengaged valve 12 is released and allows the shaft brake to be applied This insures that the brake will not be applied whenever the clutch is engaged Astern operation is the same as described above for ahead except that control lines 3C and 3A are pressurized and the reversal timing interlock is provided by valve 10 and Timer Units 6 The control system will function on direct reversals as follows Operating Sequence e Operator moves control full ahead to full astern Governor to idle Reverse gear to neutral Shaft Brake Applied Neutral Time Interlock holds Reverse Gear in Neutral Propeller shaft stops Reverse Gear shifts astern Shaft brake released Governor power boost applied Clutch pressure reaches lock up Governor power boost terminates governor advances to full speed Page 3 Adjustments amp Settings The following adjustments ad settings are made during the factory test of the Logicmaster unit but may require additional tuning on shipboard to provide the optimum system operation All factory adjustments are accomplished with a control system operating pressure of 100 psi 6 9 bar 1 Power Boost Regulator Setting
14. ent as well as the data specifications and other information set forth in it are the exclusive Rexroth property of AVENTICS It may not be reproduced or given to third parties without its consent Pneumatics
15. etails LIMITATIONS OF WARRANTIES amp REMEDIES AVENTICS warrants its products sold by it to be free from defects in material and workmanship to the following For twelve months after shipment AVENTICS will repair or replace F O B our works at its option any equipment which under normal conditions of use and service proves to be defective in material or workmanship at no charge to the purchaser No charge will be made for labor with respect to defects covered by this Warranty provided that the work is done by AVENTICS or any of its authorized service facilities However this Warranty does not cover expenses incurred in the removal and reinstallation of any product nor any downtime incurred whether or not proved defective All repairs and replacement parts provided under this Warranty policy will assume the identity for warranty purposes of the part replaced and the warranty on such replacement parts will expire when the warranty on the original part would have expired Claims must be submitted within thirty days of the failure or be subject to rejection This Warranty is not transferable beyond the first using purchaser Specifically excluded from this Warranty are failures caused by misuse neglect abuse improper operation or filtration extreme temperatures or unauthorized service or parts This Warranty also excludes the use of lubricants fluids or air line additives that are not compatible with seals or diaphragms used in the products
16. everse gear actuating cylinder from the selector lever and operating the control system The power boost actuation can be observed by the engine speed increase response and can be timed by observing when the engine speed returns to idle 3 Reversal Interlock Timing Page 4 Timer Units 5 and 6 in conjunction with interlock valves 9 and 10 provide a reversal time interlock to insure that the reverse gear is held in neutral for a preset time on reversals ever though the remote control lever is shifted directly through neutral This allows the engine speed to return to idle and provides time for the shaft brake to be applied and stop the propeller shaft before reversal is initiated This timing is factory set for 4 seconds To shorten the timing back our on the adjusting screw of Timer Unit 5 or 6 as required To lengthen the timing turn in on the adjusting screw Lock the adjusting screw after changing settings Timer Unit 5 controls the timing from ahead to astern Timer Unit 6 controls the timing from astern to ahead Final adjustments should be made during underway trials of the vessel LM 2 LOGICMASTER CONTROL UNIT PART NO R431007528 P 090008 00000 Page 5 REF 5 amp 6 wesch I NO M NM Nh coo Oo O O N NO MBM NM NM gt mlm Aa Qo O LA QTY 2 1 V O 0 4
17. he shaft brake upon initial engagement of the clutch When clutch is disengaged the drop in clutch pressure allows the shaft brake to be applied This insures that the shaft brake cannot be applied when either clutch is engaged The control system will operate in the following manner Detailed operational description of each control component is explained in the individual component publication For ahead operation a signal is delivered from the remote control station into Logicmaster connection 1C to the normally open reversing interlock valve 10 This pressure passes through 10 and out of connection 1A to actuate the spring centered reverse gear control cylinder into ahead position The ahead signal also passes 1 Through shuttle valve 1 to the power boost valve 3 This actuates the valve to deliver a preset pressure from regulator 4 to 11 and thence to the engine governor actuator to increase the governor setting to prevent stalling as the clutch engages Pressure from 1 also flows through Timer Unit 2 under the diaphragm of 3 After a time period as set by 2 this pressure equalizes with that applied to the opposite side of the diaphragm and 3 is spring returned to its original condition The boost pressure is released from the engine governor he governor boost is adjustable in magnitude by regulator 4 and in duration by Timer Unit 2 Through shuttle valve 1 to actuate throttle intercep
18. nd 210 F COMPRESSOR LUBRICANTS All compressors with the exception of special oil free units pass oil mist or vapor from the internal crankcase lubricating system through to the compressed air Since even small amounts of non compatible lubricants can cause severe seal deterioration which could result in component and system failure special care should be taken in selecting compatible compressor lubricants 3 WARNING INSTALLATION AND MOUNTING The user of these devices must conform to all applicable electrical mechanical piping and other codes in the installation operation or repair of these devices INSTALLATION Do not attempt to install operate or repair these devices without proper training in the technique of working on pneumatic or hydraulic systems and devices unless under trained supervision Compressed air and hydraulic systems contain high levels of stored energy Do not attempt to connect disconnect or repair these products when a system is under pressure Always exhaust or drain the pressure from a system before performing any service work Failure to do so can result in serious personal injury MOUNTING Devices should be mounted and positioned in such a manner that they cannot be accidentally operated 4 WARNING APPLICATION AND USE OF PRODUCTS The possibility does exist for any device or accessory to fail to operate properly through misuse wear or malfunction The user must consider these possibilities and
19. ot shown P 049109 00003 O RING 3 8 O D See Kit WASHER Lock No 10 P 049866 00007 NUT 10 32 P 049901 00016 O RING 3 16 x 5 16 P 049708 00008 Recommended spare parts to be retained in stock at all times Available in Repair Kit form Part No R431006320 P 063967 00000 l l T Maximum quantity required Actual quantity installed at factory depends on spring ratings esch a Unknown R431006176 Unknown Unknown Unknown R431005588 R431006469 Unknown R431005958 Unknown Unknown R431007028 R431005965 R431006056 R431006081 R431003217 R431001693 Unknown R431002344 R432012246 R432012137 0 Um me e 9 m SCH Page 13 LOGIC PRESSURE REGULATOR PART NO R431005985 P 62018 00000 amp R431005986 P 062018 000001 20 PESO A oi o KA m O H Woe be a g d e SAA le ee J d A 4 e N Y 4 EA OS LIZ XY VS No Za 4 REF QTY DESCRIPTION NEW PART NO OLD PART NO LOGIC PRESSURE REGULATOR 75 psi Complete R431005985 P 062018 00000 LOGIC PRESSURE REGULATOR 140 psi Complete R431005986 P 062018 00001 BODY R431007038 P 067247 00000 O RING 7 32 x 11 32 See Kit See Kit O RING 3 8 x 1 2 See Kit See Kit SPRING Supply Valve R431006176 P 063075 00000 VALVE Supply See Kit See Kit Gasket Body See Kit See Kit BODY Valve Seat R431007039 P 067248 00000 SPRING Exhaust Valve R431003030 P 052889 00000 S
20. should provide appropriate safe guards in the application or system design to prevent personal injury or property damage in the event of a malfunction 5 WARNING CONVERSION MAINTENANCE AND REPAIR When a device is disassembled for conversion to a different configuration maintenance or repair the device must be tested for leakage and proper operation after being reassembled and prior to installation MAINTENANCE AND REPAIR Maintenance periods should be scheduled in accordance with frequency of use and working conditions All AVENTICS products should provide a minimum of 1 000 000 cycles of maintenance free service when used and lubricated as recommended However these products should be visually inspected for defects and given an in system operating performance and leakage test once a year Where devices require a major repair as a result of the one million cycles one year or routine inspection the device must be disassembled cleaned inspected parts replaced as required rebuilt and tested for leakage and proper operation prior to installation See individual catalogs for specific cycle life estimates 6 PRODUCT CHANGES Product changes including specifications features designs and availability are subject to change at any time without notice For critical dimensions or specifications contact factory Many AVENTICS pneumatic valves and cylinders can operate with or without air line lubrication see individual sales catalogs for d
21. t valve 8 to connect the remote speed line through to the hydraulic interlock valve 11 When clutch oil pressure reaches 110 psi 7 6 bar the hydraulic interlock valve 11 is operated connecting the governor actuator to the remove speed control line The engine speed can now be increased as desired from the remote control station This insures that the clutch is fully engaged before the speed is allowed to increase and prevents high engine speed during engagement with resultant high slippage and clutch wear Interlock valve 11 also provides protection in the event gear pressure drops during normal running Should this occur it will release 11 and reduce engine speed to idle thus alerting the operator to the problem and prevent damaging the clutches from excessive slippage at high engine speeds 3 Ahead signal passes through Timer Unit 5 to the control connection of interlock valve 9 installed in the astern line 3C Valve 9 is actuated to intercept the astern line and prevent any astern actuation of the reverse gear control cylinder until the ahead signal is fully vented Thus on reversals a neutral time interlock is provided during which the engine speed is held at idle and the shaft brake is applied The neutral time period must be long enough to allow the brake to stop the propeller before astern actuation of the reverse gear control cylinder is permitted The neutral time is adjustable by means of Timer Units 5 for ah
22. te Control Valve We Logicmaster Control Unit R431007528 P 090008 00000 Connect to engine governor Brake Control Valve Supply 125 PSI 8 6 bar GP m Hyd Press From gear N Supply 100 PSI SC ox og Reverse Gear gt e j zo S Safety return to sump Cyl a a cA 2 ae mees D Items are not part of l l Reverse gear selector valve Logicmaster Unit Page 8 INSTALLATION DETAILS 8 00 12 00 geg 1 25 44 DIA 12 00 12 00 CLEARANCE REQ D WHEN COVER IS OPEN WGT 31LB 14 1 KG GP GT Cut Out PORT CONNECTIONS SUP NOTE ALL CONNECTIONS ARE 1 8 27 NPT FEMALE PIPE PORTS PORT IDENTIFICATIONS AA amen tutor en Seed tutor eR brake shat Brake Control Plugged for R431007520 09000800007 s Jenna Ge Year Pressure Haute Cut Presse Page 9 LOGIC SHUTTLE VALVE LATET 4 e z T Ee m LIENS Rer ar scura new PART no Tase BODY P 061979 00001 SCREW 8 32 X 3 4 R431001690 P 049109 00000 O RING 3 8 O D See Kit Recommended spare parts to be retained in stock Available in Repair Kit form Part No R431006240 P 063400 00000 z Page 10 LOGIC FLOW CONTROL VALVE REF QTY DESCRIPTION NEW PART NO OLD PART NO LOGIC FLOW CONTROL VALVE Complete R431005931 P 061975 00002 1 SCREW 8 32 x 1 3 4 R431001692 P 049109 00002 2 LOCKWASHER R432012235 P 04986
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