JLG X20J Plus Operator Manual - Manual (Page 140)

7.22 CHECKING WEAR OF THE TELESCOPIC ARM SLIDE BLOCKS
‑ Visually check play of the extension arm.
‑ In case the play exceeds 3 mm it is necessary to operate on the plastic registers screwing
them in order to lean to the arm in case of the upper ones, or bringing them to 1 mm
circa in case of the lower ones. Check the support and the correct distance, slipping off
and closing the arm completely.
‑ The slide blocks must be replaced at a JLG authorised workshop.
7.23 CHECKING EXTENSION PULLEY WEAR
Respecting the times indicated in the Periodic maintenance table it is important to check
wear of the extension pulleys.
7.24 CHECKING TIGHTNESS OF THE TURNTABLE BOLTS
Check the correct tightness of the top and bottom bolts on the turntable according to the
intervals specified in the routine maintenance table.
The bolts must be tightened to a torque of 248 Nm.
7.25 BATTERY: CHECKS AND MAINTENANCE THERMIC VERSION
‑ Do not use naked flames or produce sparks near the battery (explosive gases).
‑ The battery contains diluted sulphuric acid, which is highly explosive.
‑ Proceed with care, shielding your eyes and face.
‑ In case of accidental contact with the sulphuric acid, rinse immediately with plenty of
running water.
‑ Before working on the battery, ALWAYS disconnect the battery cutout switch.
X20JPR0020413 136
BOOM LIFT MODELS X20JPLUS
JLG