FlexArm Hydraulic Tapping Arm GHR-30

Is the gearbox a 2 speed model?

Check the gearbox for any visible damage or leaks.

Does the gearbox require greasing?

Use only Lithium type grease for greasing.

Ensure not to over grease the gearbox.

Verify that the gearbox is functioning correctly after maintenance.

Gather necessary tools and materials

Check if the unit needs to be removed from the base mount

Was the unit removed from the base mount?

Clean the lower bore of the angle mount if contaminated

Clean the shaft of the rear mount if contaminated

Apply a slight amount of grease to the shaft of the rear base mount

Turn the handle until the adjuster reaches the bottom most position

Remove the top two bolts on the front plate

Caution: Front arm will spring to the most upright position when bolts are removed

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

Slide the cylinder pin out of the arm to release 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

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

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

Start both the rod end and the cylinder end of the NEW cylinder at the same time

Cover the openings (bores) when the FlexArm is removed from the angle mount

Wrap the rear pin if not immediately repositioned

Inspect the surface of the rear pin shaft

Is cleaning required for the rear pin shaft?

Thoroughly clean the shaft of the rear pin if needed