Yanmar 6LYA-STP Specifications

OPERATION MANUALBe sure to read this manuaI for safe andproper operation．Store this manual carefully after use．

_8_(Note) 1. Rating condition : ISO 3046-1, 8665 2. 1hp = 0.7355 kW3. Fuel condition : Density at 15˚C = 0.860, Fuel oil temperature *: 25˚C at

_9_〈Note〉 This illustration shows Yanmar marine gear (Model : KMH6A) when it has been attached.2.3 NAMES OF PARTSTurbo chargerLube oil coolerfor mari

_10_2.4 Major Servicing PartsName of Part Function●Fuel filterRemoves dust and water from fuel. Drain the filter periodically, (there is adrain plug

_11_The control equipment consists of the control panel and remote control handle, which areconnected by the wires and cables to the control levers fo

_12_●New C-typeGLOWOFFONSTARTSETOFFBUZZER STOPILLUML ON00x100/mi nENGINE HOURS01020304050100BATTERYCHARGEC.WATER TEMPLUB.OILPRESS.C.WATER LEVELL

_13_(1) Gauges and EquipmentGauges & Equipment FunctionsStarter switchOFF: The switch key can be inserted or removed. All power is turned off. ON:

_14_(2) Functions of Alarm Devices (Alarm Buzzer & Lamps)1) The alarm buzzer sounds when any warning lamp (except the charge lamp) comes on.2) War

_15_Function of Alarm DevicesAlarm Buzzer On OffAlarm LampsCharge Lamp On OffCooling Water Temperature Off OffEngine Oil Pressure On OffCooling Water

_16_2.5.2Remote Control HandleUse the remote control handle in the steering room for ahead, astern and speed control. ●Operation of Single Lever Remo

_17_3.1.1 Fuel(1) Selection of fuelUse the following diesel fuels for best engine performance:ISO8217 DMA, BS2869 A1 or A2(2) Fuel Handling1) Water a

Congratulations on your choice of YANMAR product from YANMAR DIESEL ENGINE CO., LTD.This manual describes operation, periodic inspection andmaintena

_18_3.1.2 Lube oil(1) Selection of Engine Lube OilUse the following lube oil:●API CD SAE Viscosity ……… 30●SAE Viscosity……………15W40(2) Selection of O

_19_(1) Handling of Cooling Water1) Always use purified soft water or distilled water for the fresh water. Never use dirty water or hard water.Impuri

Prepare for initial operation according to the following procedures :3.2.1 Supplying Fuel and Bleeding Air in the Fuel System.(1) Supplying Fuel1) B

_21_3.2.2 Supplying Engine Lube Oil1) Remove the filler cap and supply the enginelube oil.2) Supply lube oil up to the upper limit on the oil dipsti

3.2.3 Supplying lube oil to marine gear(for Yanmar model KMH6A, KMH6A1)1) Remove the filler cap and supply the lube oil to the marine gear.2) Suppl

_23_6) Check the rubber hose connecting the sub-tank with the fresh water tank. If the hose isnot water-tight, a lot of coolling water will beconsumed

_24_3.2.6 Checking and Resupplying Lube Oil and Cooling WaterWhen engine lube oil, marine gear lube oil or fresh water is supplied for the first tim

_25_●To prevent exhaust gas poisoning, ensure good ventilation duringoperation. Install ventilation windows, ports or ventilators in theengine roo

_26_(5) Checking and Resupplying Cooling Fresh WaterCheck the fresh water level before operationwhile the engine is cold.Checking the water level whil

(7) Checking the Alarm DevicesWhen operating the starter switch, check that the alarm devices work normally. (See 2. 5. 1 (3).)(8) Preparing Fuel, Lu

_1_Thank you for purchasing the YANMAR Marine Diesel Engine.[INTRODUCTION]● This Operation Manual describes the operation, maintenance and inspectiono

_28_(3) Start up of the engine in cold weatherWhen starting the engine under low temperature conditions (approx.0℃ or lower), use the air heater (opt

3.3.3 Shifting3.3.3.1 Single-lever type remote controlhandle (optional)Return the control lever to neutral before perform-ing the following operati

Repeat a cycle of high speed and low speed operation about 5 times at no load with the clutch (marine gear) in Neutral position.Engine racing remov

_31_(1) In cold temperatures or before long term(3 months or more) storage, be sure to drainthe water from the seawater cooling system.1) Loosen the 6

_32_(5) Oil and grease the exposed area and joints of the remote control cable and the bearings of the remote control handle.(6) Cover the turbochar

_33_Conduct Periodic Inspection for Your Safety:The functions of engine components will degenerate and engine performance will fall ifperiodic inspect

_34_Daily and periodic inspection are important to keep the engine in its best condition. The following is a summary of inspection and servicing items

_35_Item DescriptionScheduleDailyEvery 50servicehrs.Every 250service hrs.(or 1 yr.)Every 500service hrs.(or 2 yrs.)Every 1000service hrs.(or 4 yrs.)Ev

_36_4.3.1 Inspection after Initial 50 Hrs. Operation（1）Replacing the Engine Lube Oil and Lube Oil Filter (1st time) During initial operation of the en

（2）Replacing Marine gear Lube Oil and Cleaning the Filter (Ist time)During initial operation of the engine, the lube oilis contaminated quickly due t

_2_INTRODUCTION…………………………………………………………………………………………………………………………………………………………………………………………………………1INDEX……………………………………………………………………………………………………………………………………………

_38_Fire due to Electric Short-CircuitsAlways turn off the battery switch or detach the earth cable (--) before inspecting the electrical system. Fai

_39_(4) Draining the fuel oil filter1) Remove the drain plug at the bottom of fuel oil filter and discharge water and dustcollected in the fuel oil f

_40_①Remove the threaded area and the connecting pivot of the remote control cable from thegovernor lever. Adjust the cable stroke by adjusting the f

_41_⑤Run the engine at load for about 10 minutes to dry the turbocharger and check that engine output has recovered. If the output has not recov

_42_Be sure to close the kingston cock beforeremoving the plug to replace the anticorrosivezinc.<Note>[Fig 29] shows the position of the Yanmar

(8) Replacing Cooling Fresh WaterCooling performance drops when cooling water is contaminated with rust and scale. Even if LLCis added, the cooling

_44_1) Cracks and loss of impeller ; flaws or excessive wear of impeller tips and side faces.(Note) The impeller must be replaced periodically (every

_45_(2) Lapping of Intake/Exhaust ValvesAdjustment necessary to maintain proper contact of valves and seats.This maintenance requires specialized kno

Trouble ●Alarm buzzersounds and alarmlamps go onduring operation○Eng. L.O. Press. Engine L.O. insufficient; L.O. level check,Warning Lamp L.O. filter

○Charge lamp does V-belt broken or loose Replace V-belt; adjust 4.3.5(1)not go out tensionduring operation Battery defective. Check fluid level,specif

_3_1. FOR SAFE OPERATION1.1 Warning SymbolsThese are the warning signs which are used in this manual and on the products.Pay special attention to the

_48_6. SYSTEM DIAGRAMS6.1 Piping diagramFUEL OIL FILTER COOLING FRESH WATER PUMPFrom F.O. TANK FUEL INJECTION PUMP LUB. OIL FILTER (FULL)

_49_6.2 Wiring diagram(1) New B-type Control panelTacho withHour meterBuzzerBuzzer stop IllumiRGBZWGGrBGRWLYWGrBYRGROGRGEng. Oil P.C.W. Temp.ExhaustC

_50_(2) New C-type control panel3RBuzzerBuzzerstop IllumiRGBZWGGrBGRWLYWGrBYRGROGRGEng. Oil P.C.W. Temp.ExhaustC.W. LevelBoostDiesel PreheaterFuel emp

_51_(3) New D-type control panel3RBuzzerBuzzerstop IllumiRGBZGrBGRWLYWGrBYRGROGRGEng. Oil P.C.W. Temp.ExhaustC.W. LevelBoostDiesel PreheaterFuel emp.W

WARRANTY SERVICEOwner SatisfactionYour satisfaction and good will are important to your dealer and to us.Normally, any problems conceming the product

49961-205581YA N MAR DIESEL AMERICA CORP.951 CORPORATE GROVE DRIVE, BUFFALO GROVE, IL 60089-4508, U.S.A.TEL : 1-847-541-1900FAX : 1-847-541-216

_4_1.2 Safety PrecautionsBurns from Scalding● Never remove the filler cap of the fresh water cooler while the engine is still hot. Steam and hot wat

_5_Disposal of waste materials●Put oil or liquids to be disposed in a container. Never dispose of waste oil or other fluids outside, in a sewer, rive

_6_To insure safe operation, warning device labels havebeen attached. Their location is shown in thediagram below. Keep the labels from becoming d

_7_2. Explanation of ProductIn the case of engine with marine gear, connect the propeller shaft to the marine gearoutput shaft.In order to obtain full