JLG X14JH Operator Manual - Manual (Page 84)

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i) Turn off the machine and move near the overhead part of the distributor from the
ground.
l) Shift the switch to control the ground overhead and turn on the machine again.
m) Act upon the CLOSING third arm cylinder. Keep the lever in position and read the pres‑
sure figure. This figure is relative to the ground overhead part of the distributor.
4.10 CHECKING THE TIGHTENING OF THE FIXING SCREWS OF THE PIN STOPS
AND THE RING NUTS
‑ Make sure that the fixing screws and the ring nuts of the pin stops are not loose.
‑ If they are loose, it is necessary to tighten screws or ring nuts to a torque of 4 kgm.
‑ Never try to tighten ring nuts or pin stops to a higher torque, as this could affect the cor‑
rect operation of the pins.
4.11 CHECKING WEAR AND TEAR OF THE TELESCOPIC ARM SLIDING BLOCKS
‑ Check visibly the wear and tear of the sliding block at the end of the first arm.
‑ If the sliding block shows wear and tear exceeding 3 mm, replace it.
‑ The screwhead and the upper part of the stops that hold the sliding blocks on the arm
must never come out of the upper outline of the sliding blocks.
‑ The replacement of the sliding blocks must always be done in an authorised workshop.
4.12 CONTROL OF WEAR AND TEAR OF THE INTERIOR SLI‑
DING RING EXTENSION
Respecting the indicated time in the schedule for the periodic
maintenance (see 4.2.1) it’s important to verify the wear and tear
of the interior sliding ring of the extension which is fixed at the
extremity of the drum extension.
If the wear and tear exceeds 3mm on the radius of the ring, it has
to be replaced.
BOOM LIFT MODELS X14JH
JLG
X14JHR0220311
RING
IMPORTANTE
IMPORTANT