JLG 1100SB Operator Manual - Manual (Page 31)

SECTION 2 - USER RESPONSIBILITIES, MACHINE PREPARATION, AND INSPECTION
3121264 – JLG Lift – 2-11
2.3 OSCILLATING AXLE LOCKOUT TEST (IF
EQUIPPED)
The front axles will oscillate when the boom is in the transport
position (i.e. when the boom is less than 15° above horizontal
and not extended beyond 12" (30.4 cm).
LOCKOUT SYSTEM TEST MUST BE PERFORMED QUARTERLY, ANY TIME
A SYSTEM COMPONENT IS REPLACED, OR WHEN IMPROPER SYSTEM
OPERATION IS SUSPECTED.
NOTE: Ensure the axles are extended and the boom is fully
retracted, lowered, and centered between the rear
wheels prior to beginning lockout cylinder test.
1. Place a 6 inch (15.2 cm) high block with ascension ramp
in front of left front wheel.
2. From platform control station, start engine.
3. Place the 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 extend the boom just enough to get it out of
the transport position.
5. With boom in this position, place Drive control lever to
Reverse and carefully 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 the ground.
7. Carefully return the boom to the transport position.
When boom reaches the transport position, carefully
activate Drive to release cylinders. The lockout cylinders
should release and allow the wheel to rest on ground.
8. Repeat the procedure for the right oscillation cylinder
checking to see that the right front or left rear wheel
remains elevated in position off of the ground.
9. If lockout cylinders do not function properly, have quali-
fied personnel correct the malfunction prior to any fur-
ther operation.