49 of 59 GH-24, GH-30, GH-45, GH-60 Rev.003
REAR REPLACEMENT INSTRUCTIONS
1) With the FlexArm extended, turn the handle until the adjuster reaches the bottom most position in the
slot. This removes all tension from the two cylinders. ( Having the arm extended makes it easier to turn
the adjuster handle)
2) Change only one cylinder at a time (this prevents the unit from falling over). Loosen the cylinder bolts
that are threaded into the rear arm. It is important to remove both the rod end and the cylinder end at
the same time to keep the cylinder even and prevent unnecessary pressure if the cylinder should start
to angle out.
3) Start both the rod end and the cylinder end of the NEW cylinder at the same time to keep the pressure
even when installing. Make sure that the rod end of the cylinder is always towards the bottom of the
unit, and that the cylinder end is toward the top.
4) After installing one cylinder completely, move to the other rear cylinder and repeat steps 2 and 3.
FRONT REPLACEMENT INSTRUCTIONS
MODELS GH-24, GHM-24, GH-30, GHM-30, GHR-30
1) With the front arm partially extended, turn the handle until the adjuster reaches the bottom most
position (Having the arm partially extended makes it easier to turn the adjuster handle).
2) Remove the top two bolts on the front plate that keep the front arm attached.
a. CAUTION – When the front arm bolts arm 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.
3) 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.
4) Remove the hex head bolt holding the cylinder end of the cylinder to the upper adjuster.
5) Attach the new cylinder starting with the cylinder end first. Use Loctite 242 or 243 on the threads of
the hex bolt. Tighten the bolt all the way then back it off 1/4 – 1/2 turn. The hex bolt should not be
tight against the cylinder clevis.
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