JLG EC450AJ Operation & Safety Manual page 35

2. From platform control station, start machine.
3. Place Drive control lever to the forward position and carefully drive machine up
ascension ramp until left front wheel is on top of block.
4. Carefully activate Swing control lever and position boom over right side of
machine or raise the main boom enough to get it out of the transport position.
5. Place Drive control lever to Reverse and drive machine off of block and ramp.
6. Have an assistant check to see that left front or right rear wheel remains elevated
in position off of ground.
7. Carefully activate Swing control lever and return boom to stowed position
(centered between drive wheels). When boom reaches center, stowed position,
lockout cylinders should release and allow wheel to rest on ground. It may be
necessary to activate Drive to release cylinders.
8. Place the 6 in (15.2 cm) high block with ascension ramp in front of right front
wheel.
9. Place Drive control lever to Forward and carefully drive machine up ascension
ramp until right front wheel is on top of block.
10. Carefully activate Swing control lever and return boom to stowed position
(centered between rear wheels). When boom reaches center, stowed position,
lockout cylinders should release and allow wheel to rest on ground, it may be
necessary activate Drive to release cylinders.
11. Repeat steps 4 - 7 to check the opposite side of the oscillating axle.
12. If lockout cylinders do not function properly, have qualified personnel correct the
malfunction prior to any further operation.
EC450AJ, EC520AJ
User Responsibilities, Machine Preparation, and Inspection
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