Manual, Compliant Reciprocating Tool, CRT Series
Document #9610-50-1028-04
Pinnacle Park • 1031 Goodworth Drive • Apex, NC 27539 USA • Tel: +1.919.772.0115 • Fax: +1.919.772.8259 • www.ati‑ia.com
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6.2.2 Ring Cylinder Assembly Replacement
The compliant motion of the air motor spindle is accomplished using an array of pneumatic drives
(ring cylinder) installed inside the rear of the CRT. After extended operation, this component
may need to be replaced to ensure free motion of the pneumatic drives. The unit is replaced as an
assembly. The ring cylinder subcomponents are not user serviceable. To replace the ring cylinder
assembly, perform the following procedure:
Parts required: Refer to
Tools required: 2.5 mm and 3 mm hex keys, torque wrench
Supplies required: Clean rag, Loctite 222, light grease NLGI‑2, Magnalube
1. Lock‑out and remove the reciprocating drive air supply for safety. De‑energize all energized
circuits such as: air and power.
2. Remove the CRT from the robot or work location.
3. Disconnect hoses from the fittings on the rear of the CRT.
4.
Remove the rear housing assembly.
a.
Using a 3 mm hex key, remove the (6) M4 socket head cap screws that secure the rear
housing assembly to the main housing.
5. Remove the ring cylinder assembly.
a. Using a 2.5 mm hex key, remove the (3) M3 socket head cap screws that secure the ring
cylinder to the rear housing.
b. Move those (3) M3 socket head cap screws, which were removed in previous step, to the
tapped holes in the ring cylinder and tighten them slowly. The screws will push the ring
cylinder assembly away from the rear housing so it can be removed.
Figure 6.2—Ring Cylinder Replacement
Rear Housing Assembly
Ring Cylinder Assembly
(3) M3 Socket Head Cap Screw
Main Housing Assembly
(6) M4 Socket Head Cap Screw