SECTION 3 - MACHINE CONTROLS, INDICATORS, AND OPERATION
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3.9 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.
When operating a machine at high ambient temperatures, a
decrease in machine performance and an increase in engine
coolant temperature may occur.
Contact JLG Customer Service for operation under abnormal
conditions.
Starting Procedure
NOTE:
Perform initial start-up from Ground Controls.
1.
Check engine oil before attempting to start engine; if neces
-
sary, add oil (refer to Section 6 for details).
2.
Pull out the red emergency stop switch (ON).
3.
Position the platform/ground select switch to the desired
operating control station (platform or ground).
4.
If operating a dual fuel machine, place the LPG/GASOLINE
select switch in the platform to the desired position.
NOTE:
If LPG system is selected, ensure the hand valve on LPG supply
tank is opened prior to attempting to start engine.
NOTICE
IF ENGINE FAILS TO START PROMPTLY, DO NOT CRANK FOR AN EXTENDED PERIOD; DO NOT
RUN STARTER MOTOR FOR MORE THAN 20 SECONDS. SHOULD ENGINE FAIL TO START
ONCE AGAIN, ALLOW STARTER TO “COOL OFF” FOR 2 TO 3 MINUTES. IF ENGINE FAILS TO
START AFTER SEVERAL ATTEMPTS, REFER TO ENGINE MANUAL.
5.
To start machine:
•
At Ground Controls
: Position emergency stop switch to on,
depress start button, and hold until engine starts.
•
At Platform Controls
: Position ground and platform emer
-
gency stop switch(s) to on, toggle start switch, and hold until
the engine starts.
If necessary, activate glow plug switch for up to 20 seconds before
starting engine if temperature is below 50° F (10° C).
NOTICE
IF INDICATOR LIGHTS REMAIN LIT AFTER ENGINE START-UP, STOP ENGINE IMMEDIATELY
AND DETERMINE CAUSE.
NOTICE
ALLOW ENGINE TO WARM UP BEFORE APPLYING ANY LOAD.
6.
After engine has warmed, proceed with operation.
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