10/29/2020 REV. 003 15
CYLINDER REPLACEMENT:
The gas cylinders used to counterbalance the arm are wear items and will wear out over time. If the arm no
longer maintains counterbalance, (with proper counterbalance adjustment, see pg.7) it is a good indication
the gas cylinders need replaced.
The cylinder part number for your unit is screen printed in white on the black barrel of the cylinder. The
cylinder part number is prefixed by “C-16” and is followed by 5 numbers. When ordering replacement
cylinders, please provide the complete “C-16_ _ _ _ _” number from the cylinder on your unit.
Replacement cylinders installed by the customer carry a 30-day limited warranty from the date of purchase.
When replacing a gas cylinder, make sure not to scratch, mar, or nick the shaft on either the old cylinder being
replaced, or the new cylinder being installed. All warranty cylinders must be returned to FlexArm for
evaluation. The warranty is void if the cylinder to be evaluated shows signs of scratches or nicks on the
cylinder shaft or body.
Read each step completely before starting.
1. Remove the air supply from the arm and the hose from the quick-release fitting on the motor.
**For steps 2-5, see Figure 9**
2. Remove the motor mount screws (2)
using a 5/16” Allen wrench and slide
the motor out of the mount.
3. Remove the cable tie connecting the
arm boot to the front block. Slide the
boot off the front of the arm.
4. Remove the 6 bolts holding the plate
on the bottom of the arm guard.
5. Remove the 4 bolts holding the arm
guard. Slide the arm guard with the
weight block and end cap toward the
back of the FlexArm and remove. This
will expose the inside of the arm.
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