FlexArm Hydraulic Tapping Arm GHM-24

Check the tightness of the following bolts

Apply Loctite 242 to the threads of loose bolts

Have all bolts been secured properly after reassembly?

Ensure the Power Pack is turned off and cooled down

Gather necessary tools and materials

Locate the oil drain plug at the bottom of the Power Pack

Remove the oil drain plug using a metric hex head bolt wrench

Replace and secure the oil drain plug

Locate the fill plug at the rear of the Power Pack

Turn the handle until the adjuster reaches the bottom most position with the front arm partially extended

Remove the top two bolts on the front plate that keep the front arm attached

Caution: When the front arm bolts are removed, tension will still exist even though the adjuster has been taken to the lowest level. The front arm will naturally spring to the most upright position.

Remove the two Allen head screws holding the rod end of the cylinder to the arm

Slide the cylinder pin out of the arm, releasing the cylinder

Remove the hex head bolt holding the cylinder end of the cylinder to the upper adjuster

Attach the new cylinder starting with the cylinder end first

Apply Loctite 242 or 243 on the threads of the hex bolt

Cover the openings (bores) after removing the FlexArm from the angle mount

Wrap the rear pin if not immediately repositioned

Inspect the surface of the rear pin shaft for foreign material

Clean the shaft of the rear pin if necessary

Ensure no foreign material is in contact with the rear pin's exterior surface

Turn the handle until the adjuster reaches the bottom most position in the slot

Ensure all tension is removed from the two cylinders

Change only one cylinder at a time

Loosen the cylinder bolts threaded into the rear arm

Remove both the rod end and the cylinder end at the same time