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IS 25T - IS30T - IS34T 

50 Hz

          

- 21

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A second belt is used to transmit the rotary motion from the

drive shaft pulley to that of the closed-circuit coolant pump

and the battery charger DC alternator [Fig. 9 Ref. 3].

Adjust the belt tension as follows:

Loosen the adjusting screw [Fig. 9 Ref. 4] and move the

battery charger DC alternator [Fig. 9, Ref. 5] outwards to

increase the tension and inwards to decrease it.

The correct belt tension is such as to allow a yield of about

10 mm [Fig. 9] under a thrust force of 8 kg.

 To prevent the belt from slipping,

do not dirty it with oil. Clean the belt with petrol if any

oil is spilled.

 Keep hands away from the V-belt or

the pulleys when the engine is running.

7.8 Emptying the cooling system

To carry out maintenance on the water/air exchanger or on

the cooling system the seawater must be drained from the

intake circuit. This operation is carried out as follows:

- Close the sea intake cock [Fig. 6, Ref. 2]

- Open the drain tap [Fig. 6, Ref. 3] until all the water has

run out

- Close the drain tap.

 Reopen the seawater intake cock

before starting the generator.

7.9 Coolant replacement

Annually replace the coolant in the closed cooling circuit as

follows:

- To remove the side counter(Fig.3, Ref.3) .

- Take a rubber hose of about 50 cm long with an inside

diameter of 30-40 mm.

- insert the pipe under the faucet (Fig.7, Ref.4) and connect

it to the inside of a container of about 10 litre capacity.

- Open the cap and completely drain the closed cooling

circuit.

When the operation has been completed, close the faucet

and fill the circuit with new coolant.

 Dispose of the used coolant in an

appropriate manner as it is a polluting product.

Take the used coolant to special collection centres

responsible for disposal.

7.10 Zinc anode replacement

To protect the water/air heat exchanger [Fig. 10, Ref. 1] and

the water/coolant heat exchanger [Fig. 10, Ref. 2] against

galvanic current, two sacrificial zinc anodes [Fig. 10, Ref.

4] have been inserted inside them. Periodically check their

state of wear and, if necessary, replace them in order to

prevent that the galvanic current irreparably corrodes the

heat exchanger. It is recommended to check the zinc

anodes at least once a month when the generator is new

to check how fast consumption is, to then be able to act

accordingly.

It is, however, opportune to replace the zinc anodes at least

once a year.

Fig.  10  shows  the  points  where  the  zinc  anodes  are

positioned.

7.11 Seawater  pump  maintenance

At least once a year check the integrity of the rubber rotor

of the seawater pump [Fig. 7, Ref. 5].

Before opening the seawater pump to inspect the rotor,

drain the seawater from the cooling system as described

in Paragraph 7.8.

To access the rotor, remove the cover [Fig. 7, Ref. 6] and

with the aid of a pair of pliers extract the rotor pulling it out

with force.

To remount a new rotor, repeat the operations described

above in reverse order.

7.12 Alternator maintenance

The alternator used on this model of generator is type

synchronous,  self-energised,  with  electronic  voltage

regulation. This model alternator, without manifold and

brushes, does not require particular maintenance operations.

The  periodic  checks  and  maintenance  are  limited  to

removing any traces of damp and oxidation which might

damage it.

7.13 Battery maintenance

For starting all the generator models, it is recommended to

use an 70 A/h battery for ambient temperatures exceeding

0ºC, and 100 A/h for lower temperatures. Before installing

a new battery it is important that it undergoes a full charging

cycle.

At least once a month check the level of the electrolyte and,

if necessary, top up with distilled water. If the generator is

not to be used for a long period, it is recommended to

disconnect the battery and store it in a dry place at a

temperature over 10ºC and to carry out a full charging cycle

once a month.

 If the battery is left completely flat

for long periods, there is a risk of irreparably damaging

it.

The positive terminal of the battery must be protected

with Vaseline to prevent corrosion and the formation of

oxide.

 For top-ups with sulphuric acid,

ready solutions must be used.

Содержание IS 25T

Страница 1: ...mase GENERA TORS IS 25T 30T 34T 50Hz REV 1 S S 21 03 2004 cod 42531 GB GENSET USE AND MAINTENANCE MANUAL...

Страница 2: ...E GENERATORS S p A Sede legale ed Amm 47023 CESENA FC ITALY Via Tortona 345 C F P I 00687150409 Cap Soc milioni 1625 interamente versato Registro Societ Tribunale Forl n 6818 CCIAA Forl n 164063 c c p...

Страница 3: ...f protection IP C m Performance class year of manifacture Rated power factor Rated voltage declared frequency 0DVV J Class of insulation Temp max of use Altitude max of use Rated current Rated power 3...

Страница 4: ...IS 25T IS30T IS34T 50 Hz 4 1 2 Fig 3 19 20 10 22 23 26 3 18 24 13 17 25 15 1112 16 14 17 4 5 6 7 8 9 21...

Страница 5: ...IS 25T IS30T IS34T 50 Hz 5 Fig 5 Fig 4 1 3 2 2 4 5 5 2 1 3 4 6 7 8 12 11 10 9...

Страница 6: ...IS 25T IS30T IS34T 50 Hz 6 S A E Service Grade 30 20 10 0 10 20 30 40 Ambient temperature o C Fig 7 Fig 8 Fig 6 TAB A 1 2 3 1 MIN MAX 4 3 4 7 2 6 5...

Страница 7: ...IS 25T IS30T IS34T 50 Hz 7 2 1 109 Fig 9 4 5 3 4 1 2 4...

Страница 8: ...IS 25T IS30T IS34T 50 Hz 8 Fig 11 Cod 45772 Schema elettrico versione Poli Isolati 8 1 A V R 4 5B 5A 7 6 5C 3A 5 3 100Kohm 60HZ 13...

Страница 9: ...IS 25T IS30T IS34T 50 Hz 9 Fig 12 Cod 45795 Schema elettrico versione Standard 1 A V R 4 5B 5A 7 6 5C 3A 5 3 100Kohm 60HZ 12 7...

Страница 10: ...stallation 18 and setup 18 5 USINGTHEGENERATOR 18 5 1 Preliminary checks 18 5 2 Bleeding the fuel system 18 5 3 Starting 18 5 4 Stopping 18 6 PROTECTIONS 19 6 1 Low oil pressure protection 19 6 2 High...

Страница 11: ...longer life of the generator Itiswarmlyrecommendedtocarefullyreadthecontentsofthismanualandthereferencedocuments onlythuscanregular functioningandreliabilityofthegeneratorbeguaranteedovertime andprote...

Страница 12: ...limbs ISO3046 Alternateinternal combustionengines IEC 34 1 Rotary electric machines ISO8528 1 Alternatecurrentgeneratorsdrivenbyalterna teinternal combustionengines EN60204 1 CEI44 5 Machinesafety El...

Страница 13: ...ercartridge 17 Oilfillercap 18 Electric line connection box 19 Batterychargeralternator 20 Collector cooled to water 21 Water airheatexchanger 22 Exhaustmanifold 23 Startermotor 24 Remotecontrolpanelc...

Страница 14: ...machine requirements for safety and health protection Machine directive 73 23 EC and subsequent amendments contained in thedirective93 68 EC Guaranteeofsafetyof electricalmaterialintendedforusewithinc...

Страница 15: ...rning lights Green RUN pilot light Fig 4 Ref 6 when on indicatesthatthegeneratorisrunningandnooperating fault has been detected Red BATT pilot light Fig 4 Ref 9 when on indicates that the alternator b...

Страница 16: ...8 Continuous power kW KVA 20 25 Power factor cos 1 0 8 Insulating class H Voltage stability 2 Frequency stability 5 3 3 2 Data sheet IS 30 QJLQH 50 Hz Model Yanmar 4TNE94 Type Diesel 4 stroke Cylinder...

Страница 17: ...tor Any operations and or procedures for maintenance not expresslyrecommendedorindicatedintheusermanuals mustalwaysbenotifiedtoandapprovedbythemanufacturer Intheeventthataprocedurenotspecificallyrecom...

Страница 18: ...p to the valveshasbeenfilledmanuallyifanon returnvalvehas beenmountedontheseaintake asrecommendedinthe installation manual Fig 4 Ref 1 5 2 Bleeding the fuel system Thepresenceofairbubblesinthefuelsyst...

Страница 19: ...intervention pressthe STOP buttontoresetthecontrolpanel otherwisethe signalwouldremaininmemorypreventingtheengine fromstarting 6 4 Protection against short circuit and overload Thegeneratorisprotected...

Страница 20: ...ttocleanthefilteringmass with diesel fuel once a year to remove nay impurities Dispose of the liquids used for air filterwashinginanappropriatemanner Takethemto specialcollectioncentres 7 5 Fuel filte...

Страница 21: ...dethem Periodicallychecktheir state of wear and if necessary replace them in order to prevent that the galvanic current irreparably corrodes the heat exchanger It is recommended to check the zinc anod...

Страница 22: ...el 10 Check coolant 10 Check for oil leaks 20 Check for fuel leaks 20 Check for coolant leaks 20 Adjust V belt tension 100 Checkbatterycharger 100 Cleanfuelfilter 200 Adjust belt tension 200 Changeeng...

Страница 23: ...ookthe generator carefully and lift it slowly without sudden movements Hooking the generator at points different from that indicated may cause damage to the generator or be dangeroustotheoperators Dur...

Страница 24: ...E 9 STARTERMOTOR 10 OILPRESSURESWITCH 11 EMERGENCYSTOPBUTTON 12 ELECTRONICVOLTAGEREGULATOR 13 ROTOR 14 STATOR 15 THERMALSWITCH 16 ENGINETHERMOSTAT 17 ENGINETHERMOSTAT 18 FUEL LEAKAGE FLOAT 19 TEMPERAT...

Страница 25: ...IS 25T IS30T IS34T 50 Hz 25 GB GB...

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