JLG 1850SJ, Руководство по обслуживанию и ремонту, Страница: 508 / 712

SECTION 6 - JLG CONTROL SYSTEM
6-76 3121619
3. If all of the initial conditions are passed, the analyzer will
display:
The control system will suppress the latched faults (“LIFT
CYLINDER OVER PRESSURE” or “WRONG TELE
RESPONSE”) to allow the boom out of transport position
until the boom is unlocked or the test is cancelled.
Engage main lift until the control system cuts it out. The
system will cut out at 7°. Only lift up and lift down will be
available while on this menu, all other functions will be
cut out. After the machine reaches the stop point, the
menu will automatically advance.
4. After the machine has reached the set point in step 3,
Lift up and down functionality will be cut out and Tele-
scope in and out functionality will be restored. The ana-
lyzer menu will display:
Engage Tele Out until the control system cuts it out. The
system will cut out at 60.0”. After the machine reaches
the set point, the menu will automatically advance and
Telescope in and out will be cut out. During this test, the
telescope response will be tested. Telescope out will
have to be commanded for at least 3 seconds, and meet
the requirements for movement and for the correct
direction. If the machine reaches the telescope set point
without 3 seconds of continuous operation, it will be
assumed that the telescope response was correct and
the menu will advance. If the machine does not move, or
moves in the wrong direction, the menu “CHECK FAILED
WRONG TELE DIR.” will be displayed and the test will
end. The WRONG TELE RESPONSE fault will still be active,
and the boom unlock procedure will have to be
attempted again.