JLG 40RTS Operator Manual - Manual (Page 19)

SECTION 2 - PREPARATION AND INSPECTION
3120825 – JLG Sizzor – 2-7
2.5 DAILY FUNCTIONAL CHECK
TO AVOID SERIOUS INJURY, DO NOT OPERATE MACHINE IF ANY
CONTROL LEVERS OR TOGGLE SWITCHES CONTROLLING
PLATFORM MOVEMENT DO NOT RETURN TO THE OFF POSITION
WHEN RELEASED.
A functional check of all systems should be performed,
under no load, once the walk-around inspection is com-
plete, in an area free of overhead and ground level
obstructions. Perform pre-load functional check in accor-
dance with the following procedure:
1. Raise and lower platform several times. Check for
smooth elevation and lowering. Check that high
function speeds cut out at 15.2 cm (6 in.) above fully
retracted platform height.
2. Drive forward and reverse, check for proper opera-
tion.
3. Check that drive brakes hold when machine is
driven up a hill, not to exceed rated gradeability, and
stopped.
4. Steer left and right. Check for proper operation.
5. Check hydraulic oil reservoir sight gauge. Refer to
Lubrication Chart.
TO AVOID INJURY DO NOT OPERATE A MACHINE UNTIL ALL
MALFUNCTIONS HAVE BEEN CORRECTED. USE OF A MALFUNC-
TIONING MACHINE IS A SAFETY VIOLATION.
2.6 LOCK-OUT CYLINDER CHECK - (IF
EQUIPPED)
To be performed quarterly, any time a system component
is replaced, or when improper system operation is sus-
pected on machines with oscillating axles.
NOTE: Ensure platform is fully lowered prior to beginning
lockout cylinder check.
1. Place an 20 cm (8 in) high block with ascension
ramp in front of the left front wheel.
2. Activate the machines hydraulic system from the
platform control station.
3. Place the engine speed and drive speed control
switches to their respective low positions.
4. Place the drive controller to the forward position and
carefully drive the machine up the ascension ramp
until the left front wheel is on top of the block.
5. Raise the machine platform approximately 61 cm
(24 in.); ensure the lockout cylinder cam valve is free
of the sizzor arm trip bar.
6. Place the drive controller to the reverse position and
carefully drive the machine off of the block and
ramp.
7. Have an assistant check to see that the left front
wheel remains locked in position off of the ground.
8. Lower the machine platform; the lockout cylinder
should then release the wheel and allow it to rest on
the ground.
9. If the lockout cylinder does not function properly,
have qualified personnel correct the malfunction
prior to any further operation.