JLG 26MRT ANSI Operator Manual - Manual (Page 30)

SECTION 4 - MACHINE OPERATION
4-2 – JLG Sizzor – 3120790
Starting Procedure
NOTE: Initial starting should always be performed from the
Ground Control Station.
1. Check engine oil before attempting to start engine; if
necessary, add oil in accordance with Engine Manu-
facturers Manual.
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 to the desired position.
NOTE: If the LPG system is selected, ensure that the hand
valve on the LPG supply tank is opened prior to
attempting to start the engine.
IF ENGINE FAILS TO START PROMPTLY, DO NOT CRANK FOR AN
EXTENDED PERIOD. 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 MAINTENANCE MANUAL.
FOR MACHINES EQUIPPED WITH THE YANMAR DIESEL ENGINE,
THE TIMER RELAY MUST SEAT THE FUEL SOLENOID WITH ITS
INITIAL PULSE, OR THE ENGINE WILL NOT START. PROLONGED
NO-START IS AN INDICATION THAT THE FUEL SOLENOID HAS
NOT SEATED OR THAT THERE IS NO FUEL. IF THE ENGINE FAILS
TO START, THE START SWITCH MUST BE RE-CYCLED TO PULSE
THE FUEL SOLENOID INTO THE SEATED POSITION.
NOTE: If starting machine from the platform control station,
place the engine speed control to the LOW position
prior to starting the engine.
5. If starting the machine from the ground controls,
position the EMERGENCY STOP switch to ON and
depress the START button and hold until until the
engine starts. If starting from the platform controls,
position the platform EMERGENCY STOP switch to
ON and depress the START button and hold until the
engine starts.
ALLOW ENGINE TO WARM-UP FOR A FEW MINUTES BEFORE
APPLYING ANY LOAD.
6. After the engine has had sufficient time to warm up,
proceed with operation of the unit.
4.4 RAISING AND LOWERING
DO NOT RAISE PLATFORM EXCEPT ON A HARD, LEVEL SUR-
FACE FREE OF OBSTRUCTIONS AND HOLES.
Raising
1. If the machine is shut down, place the POWER
SELECTOR switch to desired position (platform or
ground).
2. Position the applicable EMERGENCY STOP Switch
to the ON position.
3. If operating from the ground controls, position the
LIFT switch to UP and hold until desired elevation is
achieved. If operating from the platform controls,
press the ENABLE switch then position the LIFT
switch to UP and hold until desired elevation is
reached. The LIFT switch is part of the enable circuit,
which supplies power to the LIFT switch for 3 sec-
onds after the ENABLE switch is pressed. If the LIFT
switch is not activated within 3 seconds after the
ENABLE switch is pressed, power is removed from
the circuit and the ENABLE switch must be pressed
again before activating the LIFT switch.
Lowering
ENSURE SCISSOR ARM AREA IS FREE OF PERSONNEL PRIOR
TO LOWERING PLATFORM.
ENSURE PLATFORM EXTENSION IS COMPLETELY IS COM-
PLETELY RETRACTED PRIOR TO LOWERING PLATFORM.
If operating from the ground controls, position the lift
switch to down and hold until desired elevation is
achieved or until platform is fully lowered. If operating
from the platform controls, press the enable switch and
then position the lift switch to down and hold until desired
elevation is reached or until platform is fully lowered. The
lift switch is part of the enable circuit, which supplies
power to the lift switch for 3 seconds after the enable
switch is pressed. If the lift switch is not activated within 3
seconds after the enable switch is pressed, power is
removed from the lift switch and the enable switch must
be pressed again before activating the lift switch.
DO NOT ‘LIFT DOWN’ WITHOUT COMPLETELY RETRACTING THE
PLATFORM EXTENSION.