JLG X19J Operator Manual - Manual (Page 131)

Read the pressure value. This value relates to the right track distributor.
Switch the machine off.
d) Connect the pressure gauge to fitting MA (ref. Hydraulic system).
e) Go to the control position and switch the machine on.
f) Close one of the two left stabilisers completely and maintain the movement activated.
Read the pressure value. This value relates to the left track distributor.
g) Stabilise the machine.
h) Set the second arm cylinder to the FOLDING mode.
Keep the joystick in position.
Read the pressure value. This value relates to the aerial part distributor.
7.18 CHECKING TIGHTNESS OF THE FASTENING SCREWS ON THE PIN RETAI‑
NERS AND THE LOCK NUTS
‑ Check that the fastening screws on the pin retainers and lock nuts are not loose.
‑ If they have become loose, tighten the bolts or the lock nuts, as specified in the para‑
graph “Pin locking bolts and nuts”.
7.19 CHECKING WEAR ON THE EXTENSION ARM INTERNAL SLIDING RING
It is important to check the wear on the extension arm internal sli‑
ding ring secured to the end of the extension arm cylinder, obser‑
ving the schedule indicated in the Routine maintenance table. If
the wear on the radius of the ring exceeds 3 mm, it must be repla‑
ced.
MAX
3mm
RING
IMPORTANTE
X19JR0620113
BOOM LIFT MODELS X19J
JLG
127
IMPORTANT