Operation and Maintenance Manual

Emergency Power

System Description

Engine Lubrication System

An internal combustion engine would not run for even a few minutes if the moving parts were allowed to make metal-to-
metal contact. The heat generated due to the tremendous amounts of friction would melt the metals, leading to the
destruction of the engine. To prevent this, all moving parts ride on a thin film of oil that is pumped between all the
moving parts of the engine. Once between the moving parts, the oil serves two purposes. One purpose is to lubricate
the bearing surfaces. The other purpose is to cool the bearings by absorbing the friction generated heat. The flow of oil
to the moving parts is accomplished by the engine's internal lubricating system. Oil is accumulated and stored in the
engine's oil pan where one or more oil pumps take a suction and pump the oil through one or more oil filters as shown
in Figure 12. The filters clean the oil and remove any metal that the oil has picked up due to wear. The cleaned oil then
flows up into the engine's oil galleries. A pressure relief valve(s) maintains oil pressure in the galleries and returns oil to
the oil pan upon high pressure. The oil galleries distribute the oil to all the bearing surfaces in the engine. Once the oil
has cooled and lubricated the bearing surfaces, it flows out of the bearing and gravity-flows back into the oil pan. In
medium to large diesel engines, the oil is also cooled before being distributed into the block. This is accomplished by
either internal or external oil cooler. The lubrication system also supplies oil to the engine's governor.
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Cooling System

This system is provided by a radiator. Internal combustion engines are often cooled by passing a liquid
called engine coolant through the engine block, where it is heated, then through the radiator itself where it
loses heat to the atmosphere, and then back to the engine in a closed loop. Engine coolant is usually water-
based, but may also be oil. It is common to employ a water pump to force the engine coolant to circulate,
and also for an axial fan to force air through the radiator.

Starting System

This system is provided by a 24Vdc battery, starting relay, and starting motor which gives enough voltage to
give signal to the engine to start. During emergency situation, when generator is in automatic operation, the
ATS will give a mains failure signal which will start the engine automatically.

Stopping System

Stopping of the engine will be done thru manual stopping or automatic stopping. Manual stopping could be
done by pressing the stop button and will give a signal to the starting motor to stop. The engine will cool
down in 3 minutes before it will automatically stops or by pressing the emergency stop button. The engine
stops immediately without cooling down. Automatic stops is a command by the ATS which gives signal to
the generator that the normal power is already available. The generator will start to cool down in 3 minutes
before it automatically stops completely.
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Emergency Power

Turbocharger

is a turbine-driven forced induction device that increases an internal combustion engine's efficiency and
power output by forcing extra air into the combustion chamber.[2][3] This improvement over a naturally
aspirated engine's power output is because the compressor can force more air—and proportionately more
fuel—into the combustion chamber than atmospheric pressure alone.

Governor (Electrically Powered)

Is use to control the speed of the engine. The electrically powered governor is a three-component system,
requiring a magnetic pick-up, speed control and actuator.
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Emergency Power

System Operation
1. Operator should be competent or highly experienced with the equipment
2. ll vendors affecting this system should be properly coordinated
3. Frequent preventive maintenance is highly recommended
4. Use genuine parts for the replacement of the consumable parts of the engine.
5. Do not change the settings of the system otherwise its functionality will be compromised.
6. Genset room should be a restricted area.

Sequence of Synchronizing/Paralleling Operation

Each of the generators will share loads equally when paralleled. After 60 seconds from the mains failure signal,
synchronizing panel controllers will start to monitor the loads. System will start to check for load reserve
requirement and disconnect the less priority generator/s accordingly. If the actual load reserve and load is <30%,
system will start to disconnect the generator/s according from the lowest priority then if the load suddenly goes up
approaching 80% the system will automatically start and engaged the next priority generator/s. each generator will
be given a priority number and that will normally follow the generator number [Gen 1 would be priority 1(highest),
Gen 2 would be priority 2 & so on.]. This priority can be change via the master selector switch. By selecting the
generator to master duty, it will change the priority to the highest. If the load demand increases after some
generators have been stopped due to low load demand and low load reserve, the next higher priority generator
will start and connect to the system. If the not running generator is selected to be the master duty, it will start &
connect to the system. If any generator disconnect from the system due to fault, another available and not running
generator with the highest priority will start and connect to the bus.

When the mains failure signal is not available for more than 30 seconds or when the mains supply resume, all
running generators will open its corresponding breakers and start to cool down for 3 minutes and automatically
stop.

Modes of Operation
The system decides which operating mode is established.

Manual Mode
1. Press start button of the 1st generator to start.
2. Press GCB ON push button to close the GCB to the dead bus. If the generator voltage is out of limits the GCM
(Generator Control Module) will not respond to the GCB ON command. If the GCM detects a dead bus, it will
immediately close the GCB.
3. Press start button of the next generator to start.
4. Press the GCB ON push button to start synchronizing. If GCM detects voltage on the bus, it will start
synchronizing and close the GCB when it reaches the voltage window setting in the GCM. Pressing the GCB ON
does not immediately close the GCB. The GCM will check first if the voltage is within the parameters limits before
giving a GCB close signal. If GCB close button is pressed before 6 o’clock and or after 6 o’clock but far from 12
o’clock the GCM will try to force the generator to synchronize and go near 12 o’clock and close breaker at the safe
time when generators to be paralleled is synchronized.
5.Follow procedures for the succeeding generators to be paralleled.
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Auto Mode
Starting and stopping of the generator sets depends on the status of the mains supply. In the event of mains
failure the LVSG/ATS will give a mains failure signal to the GPS that will trigger a start command for all generator
sets. From the received of the start command all the generators will ramp up for a maximum of 10 seconds to
stabilized the generator sets before sending closing command to the breaker. After the ramp up time the first
generator set that will stabilize faster will close its breaker to the common bus then the rest of the generators will
synchronized automatically and close their corresponding breakers to the bus. After all the generators have been
paralleled the power management feature.

System Interface
Interfacing is where the emergency power system is connected to another system.
Building Management System
This system monitors what output needed to be monitored during operation. (e.g. power consumption, voltage,
ampere)

Start-up, running and shutdown procedures

Here are the following guidelines regarding start-up, running and shutdown procedures.

Genset Checklist before start-up/testing

Check the Fuel Supply System:
1. Ensure that the vent on the fuel tank cap is not clogged or cleaning shall be done to make it clear.
2. Ensure that there is enough amount of diesel fuel which meets the specification required by the engine.
3. Check the fuel pipe and joint to fix leakage problems if there is any.

Check the Cooling System:

1. Ensure that there is enough cooling water in the radiator tank. If the water is insufficient, add soft water or potable
water to the tank.
2. Check the water pipe joints to fix leakage problems if there is any.

Check the Lubricant System:

1. Check the oil pipe joints to fix leakage problems if there is any.
2. Check the amount of oil in the oil pan. Pull out the dipstick beside the crank case to see whether the oil level is as
required. If the oil is too low, more oil shall be added. If the oil level is too high, careful analysis must be made to find
out the reasons. Usually, there are three kinds of reasons for excessive oil;1.) Too much oil is filled into lubricant
system. 2.) The diesel fuel intrudes into the crank case and dilutes the oil and 3.) The cooling water intrudes in the oil.

Check Electric Starting System:

1. Ensure that the connection terminals on the battery are not fouled or oxidized. If so, rub off the foul or scales.
2. Ensure that the electric contact pins on the starter motor and the solenoid provide good contact.
3. Ensure that there is no leakage in all section of the air pipes including joints.
4. Check the electrolyte indication, Green Dot means 65% or above state of charge, Dark means below 65% state of
charge and Yellow means low level of electrolyte need to replace a brand new.
5. Ensure the Generator Circuit Breaker of the old Generator has been securely switched-off before starting.
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Genset Starting-up
Starting the engine. First Press “MANUAL MODE”… Then, press the “START BUTTON” to crank the Engine.
Note: * When the genset was successfully started, release the start button immediately. Meanwhile the ampere meter
for the charging current shall points to the positive position or the charging voltmeter indicates a charging current
voltage >25VDC. These mean that the charging is working well. For gensets equipped with working conditions
protection mechanism, if light or acoustic warning is signaled, the genset must be stopped for a check. *The idle
speed of the genset shall remain. Keep a close watch on all the instruments and pay attention to abnormal noises or
phenomenon. If there is any abnormality, decision must be made as whether to stop the genset.

Genset Running
Viewing the instruments and parameters record.
Note: It is possible to scroll to display the different pages of information by repeatedly operating the “SCROLL
BUTTON”. When scrolling manually, the display will automatically return to the status page if no buttons are pressed
for the duration of the configurable LCD Page Timer. If the genset can work well at no loads, engage the genset
circuit breaker to supply power to the load. If the genset can not automatically establish a voltage, please ch1qeck
whether the AVR panel is working normally and magnetize the genset if necessary. When the VOLTAGE,RPM&
FREQUENCY is establish. Then TURN ON THE GENSET CIRCUIT BREAKER to supply power to the load. Record
the Parameters every 30 minutes (Basic operation) and every one (1) hour for (full operation).

Stopping the engine

Select STOP/RESET MODE… The generator is stopped.
Note: The genset can be stopped immediately in the following ways:
1. Disengage the BREAKER quickly and place the throttle in the “STOP” position to shut off fuel supply after the load
was removed. This will completely halt the engine.
2. After the genset stops running, a timely check must be carried out on the genset surface. Wipe off the grease on
the genset, record the time it stops, check the condition of the genset ready for next start up.
3. Please pay attention If the genset ON LOAD for certain numbers of hours, genset must be to cool down at least 30
minutes for safety matters. If the genset is not ON LOAD is okay to stop immediately.

Manual Transfer of Power;

1. Be sure that the Genset breaker is switched ON.
2. Be sure that the Genset breaker of the other Generator is “switched-OFF.”
3. Be sure that the genset is ready for transfer.
4. If genset is ready, “switch-ON” the lever of the manual transfer using the lever.

Emergency Shutdown
1. Turn selection switch Auto.
2. Simulate ATS for normal power failure, turn on toggle switch temporary located in synchronizing panel.
3. Generator set will automatically run without load.
4. Generator reach rated frequency/voltage.
5. Push the emergency stop button at generator set control panel.
6. The generator set will shut down.
7. On generator set monitoring control panel located within Generator Assembly, “Emergency Stop” will indicate.

Low Oil Pressure - Shutdown

1. Run the generator set without load.
2. Short the wiring harness of the oil pressure switch.
3. The generator set will shut down.
4. On the generator set control panel Low Oil Pressure will indicate.
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High Temperature - Shutdown

1. Run the generator set without load.
2. Short the wiring harness of the engine high temperature sensor.
3. The generator set will shut down.
4. On the generator set control panel High Temperature will indicate.

Over Frequency - Shutdown

1. Run the generator set without load.
2. Increase the speed to 1830rpm / 62Hz at the Governor located at the Genset Control Panel
3. The generator set will shut down.
4. On the generator set control panel Gen Over Frequency will indicate.

Under Frequency
1. Run the generator set without load.
2. Decrease the speed to 1770rpm / 56Hz at the Governor located at the Genset Control Panel
3. The generator set will shut down.
4. On the generator set control panel Gen Under Frequency will indicate.

Over Voltage - Shutdown

1. Run the generator set without load.
2. Increase the voltage to 506V at the AVR.
3. The generator set will shut down.
4. On the generator set control panel Gen Over Voltage will indicate.

Under Voltage - Shutdown

1. Run the generator set without load.
2. Decrease the voltage to 414V to AVR
3. The generator set will shut down.
4. On the generator set control panel Gen under Voltage will indicate.

Crank Failure
1. Isolate the fuel system/starting motor from the generator.
2. Run the generator ser without load thrice.
3. The generator set will not run.
4. On the generator set control panel Gen Crank Failure will indicate.

Precautions necessary to overcome known hazards

These should be followed strictly to prevent any harm on the following hazards may occur during operation.

1. Fire and explosions

2. Keep flames away
3. Always switch the water heater ON
4. Keep engine surrounding area tidy and clean
5. Do not open side cover until engine cools
6. Care for fuel, oil and exhaust gas leakage
7. Use explosion proof lighting apparatus
8. Prevent electrical wires from short circuiting
9. Keep fire extinguishers and first aid kit handy
10. Clear of all rotating and moving parts
11. Install protective covers around rotating parts
12. Check work area for safety
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13. Stay clear of moving parts while engine is running

14. Lock out and tag out
15. Keep engine stopped during servicing
16. Always restore engine turning tools after use
17. Be careful of exhaust fume poisoning
18. Operate engine in well-ventilated area
19. Protect ears from noise
20. Wear ear plugs
21. Be careful of falling down
22. Lift engine carefully
23. Do not climb onto the engine
24. Always prepare stable scaffold
25. Be careful of burns
26. Do not touch the engine during/immediately after operation
27. Refill coolant only after the coolant temperature dropped
28. Be careful of opening and closing radiator cap
29. Do not touch high pressure injection fuel
30. Be careful when handling fuel, engine oil or LLC
31. Use only specified fuel, engine oil and LLC
32. Handle LLC carefully
33. Proper disposal of waste oil, LLC and coolant
34. When abnormally occurs
35. Do not add coolant immediately after sudden stop due to overheating
36. Stop operation immediately if you notice any unusual symptoms
37. Avoid immediate restart after abnormal stop
38. Avoid continuous engine operation at low pressure
39. If belt breaks, stop engine immediately
40. Handle the battery carefully
41. Never modify engine
42. Observe safety rules at work site
43. Work clothing and protective gear
44. Never break seals
45. Perform all specified pre-operation inspections and periodic inspections
46. Break-in engine
47. Warm-up engine before use
48. Never operate the engine in an overloaded condition
49. Conduct cooling operation before stopping the engine
50. Do not operated engine continuously under low load
51. Protection of the engine against water entry
52. Conduct proper maintenance of air cleaner
53. Use of tools optimum for each work
54. Avoidance of prolonged time of starter operation
55. Do not turn off the battery switch during operation
56. Cautionary instructions for transporting the engine
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System Maintenance

Dealing with hazards, which may arise during maintenance.

Here are the following items needed to follow to prevent hazards during maintenance procedures.
1. Engine external inspection
Be sure to keep combustible materials away from the engine, especially from the hot engine parts such as exhaust
manifolds, or battery. Check fuel and oil leaks. Remove dust from the top surface of the battery. A fire can be caused
by combustible materials placed near hot engine parts. If any abnormality is found, be sure to repair it or contact your
local dealer.

2. Inspection and adjustment of belt and belt tension

If defects such as cuts or surface separators are found during inspection, replace the belt. Keep oil and grease away
from the belt. They may cause the belt to slip and shorten the service life. .

3. Inspection of damper
When installing a damper protective cover to the engine , do not use a cover that encloses the damper. It may cause
serious engine problems because the damper deteriorates by heat or not delivered enough its performance.

4. Inspection of fuel system

When handling fuel, make sure there are no open flames or other fire hazards near engine. Wipe off any spilled fuel
completely. Spilled fuel can ignite and cause fire.

5. Fuel tank cleaning

Use a fuel specified by the supplier. Do not refill the fuel tank more than specified level. Otherwise, fire may result.

6. Replacement of fuel filter

Filter damage or fuel leakage may occur and it cause fire hazard.

7. Inspection of fuel control link ball joint

If the sealed ball joints are found loosened, contact your dealer. If the seal is broken, the warranty is invalidated.

8. Replacement of Engine oil, oil filter and bypass oil filter

When draining engine oil, wear gloves. Hot engine and parts may cause burns.

9. Refilling of engine oil

If the engine oil refilling goes over the high marks on the oil level gauge, engine oil may blow out.

10. Inspection of engine oil for mixing of fuel and water

If the engine continues to operate with engine oil mixed with water, this will cause serious accidents such as seizing
of bearings.

11. Changing of governor oil filter

This activity may cause burns.

12. Checking and cleaning of radiators fins

When handling compressed air, wear safety goggles, a hardhat, gloves and necessary protective gear.

13. Draining water of exhaust muffler

Never touch the exhaust muffler by hand. It is very hot after operation.
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14. Checking, cleaning and replacing of air cleaner element

Working without PPE could result in serious injuries.

15. Battery checking

If battery electrolyte is spilled on your skin or clothes, flush immediately with plenty of water. If it gets into your eyes,
flush immediately with plenty of water and get medical attention. Do not use open flames or fire hazards near battery.
When handling, be careful of sparks generated by accidental shorting.

16. Draining water and cleaning of air strainer

Do not open it suddenly. There is a high pressured air in the pipe.

The nature of deterioration and the defect to be look for.

These are the following items needed to check to prevent occurrence of the problems during operation.
1. Intake and exhaust valve clearances
2. Replacement of engine belts

Maintenance, inspection, modification information, lubrication schedule

Here are the following preventive maintenance schedules to be strictly followed.
1. Every week
- Inspect external engine
- Check fuel tank oil level
- Check engine oil level
- Check coolant level
- Check air tank air pressure
- Inspect water leakage of air cooler
- Operate the engine under no load for 5 to 10 minutes (Check ease of starting, color of exhaust smoke, abnormal
vibration, abnormal noise, abnormal smell and gauge indication (oil pressure gauge, coolant temp. gauge, oil
temp gauge, exhaust temp gauge, tachometer, etc.)
2. Every month
- Inspect engine oil mixing fuel and water
- Check fuel control link
- Inspect battery electrolyte level
- Drain water of air tank
- Inspect and refill air compressor oil level
- Conducting engine maintenance operation
3. Every 6 months
- Checking LLC concentration level in the coolant
- Cleaning inside the coolant tank
4. Every one year
- Inspect and adjust belt and belt tension
- Check and retighten nuts and bolts of the engine
- Inspect and adjust valve clearance
- Inspect vibration isolation rubber
- Inspect foundation bolts
- Inspect or replace couplings
- Drain water of fuel tank
- Inspect and adjust fuel injection nozzle spray condition and spray pressure
- Inspect and adjust fuel injection timing
- Inspect fuel pipe
- Inspect oil pipe
- Analyze engine oil properties
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- Inspect engine oil pressure

- Inspect water pump
- Check, clean and replace air cleaner element
- Inspect starter
- Inspect Alternator
- Inspect air heater
- Drain water and clean the air strainer
- Inspect safely valve operation
- Inspect air starter valve
- Inspect and clean solenoid valve pressure reducing valve
- Inspect air distribution valve
- Inspect air compressor belt tension
- Check Auxiliary devices operation
5. Every 2 years
- Replace engine oil, oil filter and bypass filter
- Replace fuel filter
- Inspect fuel control link ball joint
- Change coolant
- Inspect thermostat
- Inspect turbocharger
- Drain water of exhaust muffler
- Overhaul air compressor
6. Every 4 years
- Overhaul top end of the engine
- Checking oil cooler for contamination, clogging and leakage
- Checking oil pump for discoloration and other external defects
- Change governor oil filter
- Clean fuel tank
- Inspect and test fuel injection pump
- Check and clean radiator fins
- Replace rubber hose
- Check, clean and replace air cleaner element
- Repair or replace protective devices
7. Every 8 years
- Engine major overhaul
- Replace damper
- Repair or replace oil pump
- Replace fuel injection nozzle tip
- Replace rubber parts and o-rings
- Replace unit seal and oil seal of water pump
- Disassemble and inspect turbocharger
- Disassemble and inspect air cooler
- Repair or replace vibration isolation rubber
- Repair or replace coupling
- Repair or replace protective devices
- Inspect or replace stop solenoid
- Repair or replace ball tap of water tank
- Replace other consumables
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Periodic maintenance task/ troubleshooting

Here are the following items for the guidance of the personnel during periodic maintenance and troubleshooting>

Cranking Failure
Cause Remedies
- Check the DC fuses
Faulty wire connection - Check wiring connection between
battery, starter and starter switch
- Check alternator
Insufficiently charged battery
- Check and adjust belt
Electrical system
- Check specific gravity of battery
electrolyte.
Faulty battery
- Charge battery
- Change battery
Faulty starter or starter relay - Consult supplier
Oil Viscosity too high - Use appropriate engine oil
Lubricating system - Check amount of engine oil and
Excessive oil
lubrication system
Basic engine Rapid wear of sliding parts, or locked - Consult supplier

The Starter cranks, but the engine does not start

Cause Remedies
- Inspect fuel tank, supply fuel, bleed
Run out of fuel, blocked pipe air
- Check fuel pipes, valves
- Check faults and retighten fuel pipes
Improper fuel property and injection pipes
- Remove dust
- Check faults and retighten fuel pipes
Fuel leakage in fuel pipes and injection pipes and injection pipes
Fuel system
- Consult supplier
- Inspect and replace fuel filter
Clogged fuel filter
- Clean gauze filter
Faulty fuel feed pump - Consult supplier
- Check fuel injection pump rack
Faulty injection pump stroke
- Consult supplier
Faulty fuel injection nozzle - Consult supplier
- Check turbocharger
Air intake system Insufficient amount of air - Clean, inspect and replace air
cleaner element.
- Fuel control link – check
Control system Faulty governor
- Consult supplier
Basic engine Low compression pressure - Consult supplier
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Output Decrease
Cause Remedies
Improper fuel property - Use appropriate fuel
- Inspect and replace fuel filter
Clogged fuel filter
- Clean gauze filter
- Check fuel injection pump couplings
Faulty fuel injection timing
- Consult supplier
Fuel system
- Check fuel injection pump rack
stroke
Improper amount of injected fuel
- Check left and right bank
- Consult supplier
Faulty fuel feed pump - Consult supplier
- Check fan and heat exchange
equipment
Cooling system Overheat, overcooled
- Check control system
- Consult supplier
- Check turbocharger
- Clean, inspect and replace air
cleaner element
- Check intake air pressure and
Insufficient amount of air
leakage of intake air.
Inlet and exhaust
- Check intake air temperature and
system
ventilation device
- Consult supplier
- Check turbocharger
Increase resistance of exhaust air - Check exhaust pipes and silencer
- Consult supplier
Low compression pressure - Consult supplier
Basic engine Faulty valve timing - Consult supplier
Wear of sliding parts - Consult supplier
Control system Faulty governor control - Consult supplier

Exhaust Smoke is white or blue

Cause Remedies
- Check cetane index, and use
Improper fuel property
appropriate fuel
- Check fuel injection pump couplings
Faulty fuel injection timing
- Consult supplier
Fuel system - Check ignition noise, exhaust smoke
temperature, left and right bank
Uneven fuel injection
balance
- Consult supplier
Faulty fuel injection nozzle - Consult supplier
- Check amount of engine oil and
Lubricating system Combustion of engine oil lubrication system
- Consult supplier
- Check heat exchanger
Cooling system Overcooled
- Check control system
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- Thermostat – inspect
- Consult supplier
Basic engine Faulty valve timing - Consult supplier
Low compression pressure - Consult supplier

Exhaust Smoke is black or charcoal

Cause Remedies
- Check cetane index, and use
Improper fuel property
appropriate fuel
Faulty fuel feed pump - Consult supplier
Faulty fuel injection pump - Consult supplier
- Check fuel injection pump couplings
Faulty fuel injection timing
Fuel system - Consult supplier
- Check ignition noise, exhaust smoke
temperature, left and right bank
Uneven fuel injection
balance
- Consult supplier
Faulty fuel injection nozzle - Consult supplier
- Check turbocharger
- Clean, inspect and replace air
cleaner element
Inlet and exhaust - Check intake air pressure and
systems Insufficient amount of air
leakage of intake air
- Check intake air temperature and
ventilation device
- Consult supplier
Faulty valve timing - Consult supplier
Basic engine Low compression pressure - Consult supplier
Wear of sliding parts - Consult supplier
- Check control system and governor
Control system Increase in load controller
- Consult supplier

Fuel consumption is high

Cause Remedies
- Check cetane index, and use
Improper fuel property
appropriate fuel
- Check faults and retighten fuel pipes
Fuel leakage in fuel pipes and injection pipes and injection pipes
Fuel system
- Consult supplier
- Check fuel injection pump couplings
Faulty fuel injection timing
- Consult supplier
Faulty fuel injection nozzle - Consult supplier
- Check turbocharger
- Clean, inspect and replace air
Inlet and exhaust cleaner element
systems Insufficient amount of air
- Check intake air pressure and
leakage of intake air
- Check intake air temperature and
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ventilation device
- Consult supplier
Faulty valve timing - Consult supplier
Basic engine Low compression pressure - Consult supplier
Wear of sliding parts - Consult supplier
- Check fan and heat exchanger
- Check control system
Cooling system Overcooled
- Thermostat – inspect
- Consult supplier

Engine Oil Consumption is High

Cause Remedies
- Check oil leakage
Fuel system Oil leakage to the outside of engine
- Consult supplier
Faulty engine oil property - Analyze oil property
- Check fuel injection pump couplings
Faulty fuel injection timing
- Consult supplier
Lubricating system - Check amount of engine oil and
lubrication system
Engine oil temperature is high temperature
- Check oil cooler and oil thermostat
- Consult supplier
- Check heat exchanger
Inlet and exhaust - Check control system
systems Spread oil to intake part
- Thermostat – inspect
- Consult supplier
- Check heat exchanger
- Check control system
Cooling system Overheating
- Thermostat – inspect
- Consult supplier
- Check control system and governor
Control system Increase in load controller
- Consult supplier
Basic engine Wear of sliding parts - Consult supplier

Overheating
Cause Remedies
- Check coolant leakage
Low coolant level
- Check coolant level
Cooling System Faulty water pump operation - Consult supplier
Faulty thermostat operation - Consult supplier
Faulty heat exchanger operation - Check and clean heat exchanger
- Check control system and governor
Control system Increase in load controller
- Consult supplier
Basic engine Wear of sliding parts - Consult supplier
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Low Engine Oil Pressure

Cause Remedies
- Check amount of engine oil and
Insufficient amount of engine oil
lubrication system
- Analyze oil property. Use appropriate
Faulty engine oil property (viscosity)
engine oil
Lubricating system - Check coolant system
Engine oil temperature is high
- Consult supplier
- Inspect and replace oil filter and
Oil filter clogged
bypass oil filter
Faulty oil pump operation - Consult supplier
Faulty relief valve operation - Consult supplier
- Check control system and wire
Control system Oil pressure gauge failure
- Consult supplier
- Check fuel injection pump rack
Increase in load stroke
Basic engine - Consult supplier
Rapid wear of sliding parts - Consult supplier
Increase clearance of sliding part - Consult supplier

When fuel has run out

When fuel runs out while engine is running and the engine has stopped, restart the engine as described below.
1. Return the starter switch to the “OFF” position
2. Add fuel to the fuel tank
3. Bleed air from the fuel system
4. Restart the engine.