JLG X23J - X700AJ Service Manual - Manual (Page 37)

SECTION 3 - CHASSIS & TURNTABLE
3-10 – JLG Lift – 3121448
3.3 CYLINDERS AND ENLARGEMENT GUIDE
Figure 3-15.
12. Stabilize the machine on level surface.
13. Extend the undercarriage.
14. Engine and key off.
15. Remove the key ignition, and a tag with warning do
not start the machine.
16. Open the hydraulic cap, and operate the function
undercarriage extend/retract to discharge any resid-
ual pressure in the system.
Figure 3-16.
17. Remove the cotter pin 1.
18. Remove the pin 2.
Figure 3-17.
19. Using a suitable lifting (minimum 200kg) to remove
the track frame.
Figure 3-18.
20. Remove screw and nut 3-6.
21. Remove the pin 4.
22. Disconnect, tag and plug the hydraulic hoses from
the cylinder extension.
23. Remove the cylinder.
Figure 3-19.
NOTE: Before to install the undercarriage frame inspect the
slide guides 9.
a. Unscrew the screws 7.
b. Remove the stop slide guides 8.
c. Remove the slide guides 9.
d. Check the thickness of slide guides, if less than
3.5 mm, damage, with deep scratches or with
deformation, replace its. Otherwise clean them
and install by adding Grease GR MU EP1 before
to install the track guides.
e. Use medium strength Loctite (Loctite 52A43) on
screws 7 and tightening torque of 10 Nm.
1
2
3
5 6
4
7 8
9
9