6. For LPG fuel operation: Completely open the
valve (6) on top of the LPG tank, (turn
counterclockwise until it stops).
7. For a dual fuel engine: Set the Dual Fuel
switch (7) to GAS (gasoline) (9) or to
LPG (gas) (8), depending on which fuel you
want to use for operation.
8. Insert the key (10) in to the Master Key
Switch (11).
9. Turn the key (10) to ON and pause there a
few seconds (but not over 30 seconds), while
an alarm sounds to alert others that the ATB
42/50 is about to start.
10. For a diesel engine: If engine is at cold
ambient temperature, hold the Choke/Cold
Start switch (12) up for 10 seconds just
before you perform the next step.
Gasoline engines have automatic chokes.
They do not use the Choke/Cold Start switch.
11. Turn the key (13) to START and hold it there
until the engine starts, or for 20 seconds,
whichever comes first. When the engine
starts, release the key (13).
If you pause 30 seconds or more, after turning
the Master Key Switch to ON, an automatic
protection feature will prevent the ATB 42/50
from starting. If that happens, turn the key to
OFF, then try again.
If the engine does not start in 20 seconds, turn
the key (13) to OFF. Wait 60 seconds before
trying to start the engine again.
The engine should now be running, and the
ATB 42/50 is ready to begin work.
ATB 42/50 – 0161987
page 8 - 3
8. Operation
CAUTION
