4.3
ENGINE OPERATION
NOTE:
When operating a machine at high altitudes, a decrease in
machine performance may occur due to a decrease in air den-
sity.
NOTE:
When operating a machine at high ambient temperatures, a
decrease in machine performance and an increase in engine
coolant temperature may occur.
NOTE:
Contact JLG Customer Service for operation under abnormal
conditions.
NOTE:
Initial starting should always be performed
from the Ground Control station.
31215033
SECTION 4 - MACHINE OPERATION
Starting Procedure
IF ENGINE FAILS TO START PROMPTLY, DO NOT CRANK FOR AN EXTENDED TIME.
SHOULD ENGINE FAIL TO START AGAIN, ALLOW STARTER TO "COOL OFF" FOR 2-3 MIN-
UTES. IF ENGINE FAILS AFTER SEVERAL ATTEMPTS, REFER TO ENGINE MAINTENANCE
MANUAL.
NOTE:
Diesel engines only: After turning on ignition,
operator must wait until glow plug indicator light
goes out before cranking engine.
1.
Turn key of Platform/Ground Select switch to
Ground.
2.
Pull the Power/Emergency Stop switch to On.
3.
Push the Engine Start switch until engine starts.
4-5