Skyguard Function Test - JLG 450A Operation And Safety Manual

5. With the machine positioned on a smooth, firm surface
within the limits of the maximum operating slope, elevate
the boom above 5 degrees of horizontal; Select high speed
drive mode. Carefully attempt to drive and ensure the drive
speed is reduced.

SkyGuard Function Test

NOTE: Refer to Section 4.10 for additional information on SkyGuard
operation.
From the Platform Console in an area free from obstructions:
1.
Operate the telescope out function.
2.
Activate the SkyGuard sensor:
a. SkyGuard - Apply approximately 50 lb (222 Nm) of
force to yellow bar.
b. SkyGuard - SkyLine - Press cable to break magnetic
connection between the cable and right bracket.
c. SkyGuard - SkyEye - Put arm or hand in path of sensor
beam.
3.
Once the sensor has been activated, verify the following
conditions:
a. Telescope out function stops and telescope in function
operates for a short duration.
31215021
SECTION 2 - USER RESPONSIBILITIES, MACHINE PREPARATION, AND INSPECTION
b. The horn sounds.
c. If equipped with a SkyGuard beacon, the beacon illumi-
nates.
4.
Disengage the SkyGuard sensor, release controls, then recy-
cle the footswitch. Ensure normal operation is available.
NOTE:
On machines equipped with SkyLine, reattach magnetic end of
the cable to the bracket.
If SkyGuard remains activated after function reversal or cutout,
depress and hold the SkyGuard Override Switch to allow normal
use of machine functions until the sensor is disengaged.
2-11