OPM 320 en-GB 2
© Scania CV AB 2019, Sweden
Start of warranty . . . . . . . . . . . . . . . . . . . . . . . . 3
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Power classes . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Environment and safety . . . . . . . . . . . . . . . . . . 6
Environmental responsibility . . . . . . . . . . . . . 6
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Warnings and advisories . . . . . . . . . . . . . . . . . 7
Engine data plate . . . . . . . . . . . . . . . . . . . . . . . 14
Component identification . . . . . . . . . . . . . . . . 15
Starting and running . . . . . . . . . . . . . . . . . . . . 17
Checks before first start . . . . . . . . . . . . . . . . 17
Checks before running . . . . . . . . . . . . . . . . . 17
Starting the engine . . . . . . . . . . . . . . . . . . . . 17
Running. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Engine shutdown. . . . . . . . . . . . . . . . . . . . . . 19
Checks after running . . . . . . . . . . . . . . . . . . . 19
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Maintenance interval. . . . . . . . . . . . . . . . . . . 21
Lubrication system . . . . . . . . . . . . . . . . . . . . . 22
Oil grade . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Oil analysis . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Checking the oil level . . . . . . . . . . . . . . . . . . 25
Maximum angles of inclination during operation
25
Changing the oil . . . . . . . . . . . . . . . . . . . . . . 26
Cleaning the centrifugal oil cleaner . . . . . . . 27
Operational testing of the centrifugal oil cleaner
31
Renewing the oil filter. . . . . . . . . . . . . . . . . . 32
Air cleaner . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Reading the vacuum indicator. . . . . . . . . . . . 33
Renewing the filter element and safety cartridge
33
Cooling system . . . . . . . . . . . . . . . . . . . . . . . . . 34
Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Checking coolant level . . . . . . . . . . . . . . . . . 38
Checking the coolant's antifreeze and corrosion
protection . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Changing the coolant and cleaning the cooling
system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Fuel system . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Cleaning the flame arrestor and throttle at the
flame lock . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Cleaning the throttle at the gas mixer . . . . . . 48
Leak testing after maintenance of the fuel circuit
49
Checking deposits in the combustion chamber.
56
Electrical system . . . . . . . . . . . . . . . . . . . . . . . 57
Renewing the spark plugs . . . . . . . . . . . . . . . 57
Other . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Checking the drive belt . . . . . . . . . . . . . . . . . 59
Checking for leaks . . . . . . . . . . . . . . . . . . . . 60
Checking and adjusting the valve clearance .61
Quality requirements for fuel . . . . . . . . . . . . .64
Methane amount and calorific value per power
level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64
Other quality requirements. . . . . . . . . . . . . . .65
Preparing the engine for storage . . . . . . . . . . .66
Preservative products . . . . . . . . . . . . . . . . . . .66
Preparations for storage . . . . . . . . . . . . . . . . .66
Technical data . . . . . . . . . . . . . . . . . . . . . . . . . .69
General data . . . . . . . . . . . . . . . . . . . . . . . . . .69
Lubrication system . . . . . . . . . . . . . . . . . . . . .69
Fuel system. . . . . . . . . . . . . . . . . . . . . . . . . . .70
Cooling system. . . . . . . . . . . . . . . . . . . . . . . .70
Intake system . . . . . . . . . . . . . . . . . . . . . . . . .70
Electrical system . . . . . . . . . . . . . . . . . . . . . .70
Scania Assistance . . . . . . . . . . . . . . . . . . . . . . .71
General tightening torques for screw joints . .72
Hexagon screws, hexagon socket screws, Torx
screws, hexagon nuts . . . . . . . . . . . . . . . . . . .72
Flange screws with hexagonal head and hexago-
nal flange nuts . . . . . . . . . . . . . . . . . . . . . . . .72
Hose clamps . . . . . . . . . . . . . . . . . . . . . . . . . .73