ST7 01 Motor.pdf

ST7

Engine and Fuel System

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ST 7 Safety 

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Always read and understand the Safety manual before operate or work with the Scooptram.

Powertrain

rear  axle 

driveline 

Engine  (powerpack)  front axle 

transmission  Radiator  (cooler)  upbox 

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Engine / Powerunit Introduction / Specifications

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Cummins Diesel engine QSB 6.7 Tier 3  – High Pressure Common Rail 300 – 1600bar  – Rated power 144kW (193 BHP) @ 2200 rpm  – Torque 931Nm (687 lb-ft) @ 1400 rpm  – ECU – Engine Control Module.  – Some rpm’s 

Low idle:700,

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Converter stall 1800

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High idle:2300

 – Engine oil (pan + filter): 17,5L

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Engine / Powerunit Fuel system

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Fuel flow

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Fuel filter

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Fuel tank

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Fuel pump

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Sensors

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Injectors

Engine / Powerunit Fuel system 

Fuel flow  –  1. Fuel tank   –  2. Primary Fuel filter   –  3. Fuel pump   –  4. Hand pump   –  5. Secondary Fuel filter   –  6. High pressure fuel pump   –  7. High pressure common rail   –  8. Engine injectors   –  9. Check valve   –  10. Return to tank 

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Engine / Powerunit Fuel system

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Filter

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Tank

Engine / Powerunit Engine oil system

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How to fill, change and check oil level

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Oil filter

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Oil pump

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Oil pressure switch

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Oil cooler

Engine / Powerunit Engine oil system 

How to check, change and fill engine oil

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Oil filter

Engine oil can reach temperatures exceeding 104°C (220°F). Do not change oil immediately after engine shutdown. 9

Engine / Powerunit Engine oil system

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Oil pump  – Gear pump driven by the engine  – Pumps oil throughout the whole engine

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Engine / Powerunit Engine oil system 

Oil pressure switch  – Shows a constant pressure unless there’s too little oil in the system  – Under 0,5 bar the low oil pressure warning will apear

STOP THE ENGINE IMMEDIATELY 11

Engine / Powerunit Engine oil system

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Oil cooler

Engine / Powerunit Cooling system / Radiator

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How to check, change and fill engine coolant

Engine / Powerunit Cooling system / Radiator

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Coolant flow in the engine

Never operate without

THERMOSTAT

Engine / Powerunit Cooling system / Radiator

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Different coolers in one assembly

1. Engine coolant radiator 2. Charge air cooler 3. Transmission radiator

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4. [OPT] AC cooler

Engine / Powerunit Cooling system / Radiator

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Easy field repair of radiator  – If a spare tube isn’t in reach remove the broken tube and plug it

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Engine / Powerunit Air intake system

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Filter

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Filter indicator

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Warning in display

Engine / Powerunit Turbo system

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Turbo charger

Engine / Powerunit Exhaust system

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Silencer

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Purifier

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Particle filter (option)

Engine / Powerunit Electrical system

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ECM, Engine Control Module

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Temperature sensors

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Pressure sensors

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Other sensors

Engine / Powerunit Electrical system

1. Oil pressure switch 2. Fuel rail pressure sensor 3. Intake manifold pressure and temperature sensor 4. Coolant temperature sensor 5. Ambient air pressure sensor 6. Camshaft & crankshaft position & speed 7. Electronic control module CM 850

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Engine / Powerunit Upbox

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Engine / Powerunit Fluids

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Can be found in the servicemanual.

Service Manual

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Engine / Powerunit Spare parts

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