JLG 340AJ Service Manual - Manual (Page 162)

SECTION 5 - HYDRAULICS
5-4 – JLG Lift – 3121259
A B C D E
2mm
1mm
F G
Check the oil leakage status on the rod surface with a flow of 20cc - 40cc. Oil leakage in an amount as shown in example A is unac-
ceptable. Examples B-G are acceptable.
OIL RING
Figure 5-1. Acceptable Oil Leakage on Cylinder Rod