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TAD 1641 GE Engine

Name: TAD 1641 GE Engine
Brand: TAD

The TAD 1641 GE is a 6 L 4-stroke liquid-cooled engine rated at 5 rpm. It powers generator sets from SDMO, including the V500UC. It holds 984 L (259.9 gal) of oil and 984 L (259.9 gal) of coolant.

Also known as: TAD 1641 GE

6.0 L

Displacement

5 rpm

Rated speed

984.0 L

Oil capacity

On this pageSpecs Generator sets FAQ Service intervals Torque & specs Fluids Fault codes Procedures Wiring

Engine specifications

Oil capacity	984.0 L
Coolant capacity	984.0 L
Displacement	6.0 L
Aspiration	4-stroke liquid-cooled
Rated speed	5 rpm

Generator sets powered by this engine

SDMO V500UC

Service intervals

Item	Action	Hours	Months	Notes
Air cleaner and dust bowl	Clean	50 hr
Battery electrolyte level	Check	50 hr
Radiator and intercooler fins	Clean	50 hr
Vibration dampers	Check	50 hr
Lubrication oil	Change	150 hr	12 mo	First service — First change at 150 hours; regular interval 125-500 h depending on fuel sulfur content, or 12 months
Oil filter(s)	Replace	150 hr		First service — First change at 150 hours, then per oil change interval
Valve clearance	Adjust	150 hr		First service — First initial 150 running hours, then every 1000 hours
Air filter element	Replace	500 hr
Alternator insulation resistance	Test	500 hr
Drive belt(s)	Check	500 hr		tension and condition
Fuel pre-filter/Water separator	Drain	500 hr		First service — Initially and every 500 hours
Glycol level in coolant	Check	500 hr
Mechanical links (fuel solenoid link)	Lubricate	500 hr		grease
pH level of coolant	Check	500 hr
Crankcase pressure	Check	1000 hr
Door hinges and locks	Lubricate	1000 hr		grease
Fuel filter element	Replace	1000 hr
Fuel injectors	Check	1000 hr
Fuel pre-filter/Water separator	Replace	1000 hr
Hoses, cables and pipes fixation	Check	1000 hr
Nuts and bolts	Check	1000 hr		tightness
Drive belt(s)	Replace	2000 hr
Fan hub bearings	Lubricate	2000 hr
Fuel tank for water	Check	2000 hr
Safety cartridge	Replace	2000 hr
Turbocharger impeller and housing	Inspect	2000 hr		clean and inspect
Coolant	Change	10000 hr	60 mo	or 5 years, whichever comes first

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Service specifications

Type	Item	Value	Unit	Condition
Clearance	Valve clearance, exhaust	0.60+/-0.05	mm	cold
Clearance	Valve clearance, inlet	0.30+/-0.05	mm	cold
Pressure	Engine oil pressure shutdown switch	0.5	bar
Resistance	Alternator insulation resistance minimum	2	MΩ	measured with 500 V megger between earth terminal and terminal L1
Temperature	Engine coolant temperature shutdown switch	103	°C

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Recommended fluids

Fluid	Grade	Standard	Ambient	Capacity	Notes
Coolant	PARCOOL EG		above 40°C	60.0 l	Ethylene Glycol based, premixed 50/50 dilution ratio; pH typical 8.6, replace if pH below 7 or above 9.5; glycol concentration 33-68 vol.%
Engine oil	PAROIL 15W40	ISO 3448	15°C to 40°C	42.0 l	high-quality mineral, hydraulic or synthesized hydrocarbon oil with rust and oxidation inhibitors
Engine oil	PAROIL 5W40	ISO 3448	25°C to 40°C	42.0 l	synthetic ultra high performance diesel engine oil

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Fault codes

Code	Name	Meaning	Severity
111/01	Low Coolant Level Shutdown	111 = Coolant level, 01 = Low level shutdown	Shutdown
FMI00	HIGH LEVEL SHUTDOWN	High level shutdown	Shutdown
FMI01	LOW LEVEL SHUTDOWN	Low level shutdown	Shutdown
FMI15	HIGH LEVEL WARNING	High level warning	Warning
FMI16	HIGH LEVEL ALARM	High level alarm	Warning
FMI17	LOW LEVEL WARNING	Low level warning	Warning
FMI18	LOW LEVEL ALARM	Low level alarm	Warning
SPN100	OIL PRESSURE	Oil pressure
SPN101	CRANKCASE PRESS	Crankcase pressure
SPN102	TURBO BOOST PRESS	Turbo boost pressure
SPN104	TURBO OIL PRESS	Turbo oil pressure
SPN105	INTAKE MANIF TEMP	Intake manifold temperature
SPN106	AIR INLET PRESSURE	Air inlet pressure
SPN110	COOLANT TEMP	Coolant temperature
SPN111	COOLANT LEVEL	Coolant level
SPN158	BATT VOLTAGE	Battery voltage
SPN16	FUEL FILTER DIFF P	Pressure difference over fuel filter
SPN171	AMBIENT AIR TEMP	Ambient air temperature
SPN172	AIR IN TEMP	Air in temperature
SPN174	FUEL TEMP	Fuel temperature
SPN175	OIL TEMP	Oil temperature
SPN190	SPEED	Speed
SPN51	THROTTLE POS	Throttle position
SPN52	INTERCOOL TEMP	Intercooler temperature
SPN94	FUEL PRESS	Fuel pressure
SPN95	FUEL FILTER DIFF P	Pressure difference over fuel filter
SPN97	WATER IN FUEL	Water in fuel
SPN98	OIL LEVEL	Oil level
SPN99	OIL FILTER DIFF P	Pressure difference over oil filter

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Procedures

Coolant check (monitoring condition) diagnostic

Tools: pH-measuring device (part 2913 0029 00), Refractometer (part 2913 0028 00)

Verify the coolant color visually and confirm no loose particles are floating.
Check the pH value with a pH-measuring device; typical EG value is 8.6.
Check glycol concentration with a refractometer; keep above 33 vol.%, not above 68 vol.%.
Replace coolant if pH is below 7 or above 9.5, or if condition is outside limits.
Always top up with PARCOOL EG only, never with water alone.

Measuring the alternator insulation resistance diagnostic

Tools: 500 V megger

Disconnect the N-terminal from the earthing system if connected.
Disconnect the AVR.
Connect a 500 V megger between the earth terminal and terminal L1.
Generate a voltage of 500 V and read the scale.
Verify the scale indicates a resistance of at least 2 MΩ.

Replacing the coolant maintenance

⚠ Never remove the cooling system filler cap while coolant is hot; the system may be under pressure.

Completely drain the entire cooling system.
Dispose of used coolant per local regulations.
Flush twice with clean water.
Determine the required amount of PARCOOL EG and pour into the radiator top tank.
Run the engine until normal operating temperature is reached to release trapped air, then turn off and let cool.
Recheck coolant level and add if necessary.

Preparing for operation after storage operation

Remove the wrapping, VCI paper and silica gel bags.
Go through the 'Before starting' checklist.
Consult the engine's operator manual.
Check that the insulation resistance of the generator exceeds 2 MΩ.
Replace the fuel filter and fill the fuel tank; vent the fuel system.
Reinstall and connect the battery, recharged if necessary.
Submit the generator to a test run.

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Voltage reconnection

Voltage	Phase	Connection	Leads	Notes
		X2	L3, N, PE	Socket 16 A Rim/Pin/CEE earthing
		X25.1 & X25.2	Remote start switch	Qc1002 remote start operation
		X25.3 & X25.4	Remote contactor (open/close)	Qc1002 remote start operation
	3	X3	L1, L2, L3, neutral, earthing	3-phase outlet socket
	3	X4	L1, L2, L3, neutral, earthing	3-phase outlet socket
	3	X5	L1, L2, L3, neutral, earthing	3-phase outlet socket
	3	X6	L1, L2, L3, neutral, earthing	3-phase outlet socket
230 V	3	Dual voltage - S10 low position		Lower voltage mode via S10 selector on alternator, adjust with R12 potentiometer
400 V	3	Dual voltage - S10 high position		Higher voltage mode via S10 selector on alternator, adjust with R12 potentiometer
400/480 V AC	3	X1	L1, L2, L3, N, PE	Main power supply

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Common questions

What is the oil capacity of the TAD 1641 GE?

The TAD 1641 GE engine has an oil capacity of 984.0 liters.

What is the displacement of the TAD 1641 GE?

The TAD 1641 GE has a displacement of 6.0 liters.

Which generators use the TAD 1641 GE engine?

The TAD 1641 GE powers 1 generator set(s), including SDMO V500UC.