JLG 340AJ Service Manual - Manual (Page 236)

SECTION 5 - HYDRAULICS
5-78 – JLG Lift – 3121259
8. Remove Outer O-Ring Seal
Check the quality of this seal. If necessary, replace it. Fol-
low the same removal recommendations given in step
7.}
After removal, discard the damaged seal.
DO NOT USE TOOLS WITH SHARP EDGES TO REMOVE THE SEALS, AS DAMAGE
TO THE COVER CAN RESULT.
9. Remove the snap ring.
Place the flange on the work surface. Using internal snap
ring pliers, remove the snap ring.
10. Remove the shaft seal.
Check the shaft seal quality and remove if necessary.
To remove, pry the bottom of the shaft seal and force it
out while rotating the flange to lift it out evenly.
Do not use the flange pilot to gain leverage, damage
may result. Use a plastic rod or wooden dowel as a ful-
crum.
After removal, dispose of damaged seal.
ASSEMBLY
1. Prepare the seals.
Have the entire seal kit available.
Lightly coat all seals with seal grease. The grease is
needed to adhere the seals to their grooves.
DO NOT INSTALL DRY SEALS.