JLG X14JH Operator Manual - Manual (Page 74)

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4.3 RUBBER TRACK MAINTENANCE
4.3.1 CHECKING TRACK TENSION
Park the machine on a solid and flat surface. Lift machine safety and put stable blocks under
the crawler frame to support it. Measure distance A from the roller bottom to the rubber
track rigid inner part. The track tension is correct if measurement A is between 10 and 15
mm.
If the track tension is not within the above‑mentioned measurements, not too loose nor too
tight, follow the instructions given in the following paragraph.
4.3.2 OPERATIONS TO LOOSEN OR TIGHTEN TRACK
The grease contained in the hydraulic track is under pressure. Therefore never loosen grea‑
sing valve 1 for more than one turn. If the valve is too loose, it might get expelled under the
grease pressure, exposing the operator to risk. Never loosen grease nipple 2.
Remove any mud or gravel jammed between the sprocket and the track links before loose‑
ning them.
1. Remove screws and plate 3 to have access to regulation.
2. To loosen track, slowly unscrew valve 1 anti clockwise for no more than one turn. One
turn of valve 1 is sufficient to loosen track.
3. If the grease does not start draining, make the track turn slowly.
BOOM LIFT MODELS X14JH
JLG
X14JHR0220311
A
5202 02B H19
3
1
2
PERICOLO
DANGER