JLG 800A Operation And Safety Manual page 39

SECTION 2 - USER RESPONSIBILITIES, MACHINE PREPARATION, AND INSPECTION
5. Carefully activate SWING control lever and position
boom over RIGHT side of machine.
6. With boom over right side of machine, place DRIVE con-
trol lever to REVERSE and drive machine off of block
and ramp.
7. Have an assistant check to see that left front or right rear
wheel remains elevated in position off of ground.
8. 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.
9. Place the 6 inch (15.2 cm) high block with ascension
ramp in front of right front wheel.
10. Place DRIVE control lever to FORWARD and carefully
drive machine up ascension ramp until right front wheel
is on top of block.
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11. Carefully activate SWING control lever and position
boom over left side of machine.
12. With boom over left side of machine, place DRIVE con-
trol lever to REVERSE and drive machine off of block
and ramp.
13. Have an assistant check to see that right front or left rear
wheel remains elevated in position off of ground.
14. 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.
15. If lockout cylinders do not function properly, have quali-
fied personnel correct the malfunction prior to any fur-
ther operation.
– JLG Lift – 2-19