JLG 2658E3 Service Manual - Manual (Page 19)

SECTION 2 - PROCEDURES
3120878 – JLG Lift – 2-7
DO NOT FU LLY EXTEN D CYLINDER TO END OF STROKE.
RETRACT CYLINDER SLIGHTLY TO AVOID TRAPPING PRES-
SURE.
2. Operate the hydraulic power source and extend the
cylinder. Shut down and disconnect the power
source. Adequately support the cylinder rod, if nec-
essary.
3. If applicable, remove the cartridge-type holding
valve and fittings from the cylinder port block. Dis-
card o-rings.
4. Place the cylinder barrel into a suitable holding fix-
ture.
5. To aid in realignment, mark cylinder head and barrel
with a center punch.
6. Using a suitable spanner wrench, loosen the span-
ner nut retainer and remove the spanner nut from
the cylinder barrel.
7. Attach a suitable pulling device to the cylinder rod
port block or cylinder rod end, as applicable.
Figure 2-2. Lift Cylinder Components Assembly
Figure 2-3. Barrel Support