ATI Technologies 9150-CRT, Product Manual, Page: 19 / 31

Manual, Compliant Reciprocating Tool, CRT Series
Document #9610-50-1028-04
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6. Troubleshooting and Service Procedures
CAUTION: Thread locker applied to fasteners must not be used more than once. Fasteners
might become loose and cause equipment damage. Always apply new thread locker when
reusing fasteners.
The CRT is designed to provide reliable service for long periods of operation. While simple in design, there are
parts in the assembly that are not serviceable by the user. The user is encouraged to return the unit to ATI for
service.
Section 6.1—Troubleshooting is provided to assist the user when they choose to service the unit in the field.
For all service, it is recommended that the air supply be disconnected. Purge any trapped air pressure in the lines.
It is suggested that the air supply be "locked out" to prevent accidental operation during troubleshooting. During
maintenance operations, refer to Section 6.2—Service Procedures for instructions. Service and repair parts are
identified in Section 7—Serviceable Parts and Section 9—Drawings .
6.1 Troubleshooting
Reciprocating process development is an iterative, learning task. The following table is presented to assist in
solving problems.
Table 6.1—Troubleshooting
Symptom Cause Resolution
File wear
Hard work material Use better grade burr material add coating (TiAlN)
Too heavy a cut Decrease depth of cut, make multiple passes
Feed rate is too slow Increase feed rate
File breakage
Too heavy a cut Decrease depth of cut, make multiple passes
Impacting the part Decrease feed rate at contact, enter part at an angle
Unequal compliance
Regulator is defective Replace regulator
Worn ring cylinder
Replace ring cylinder. Refer to Section 6.2.2—Ring Cylinder
Assembly Replacement.
Poor finish on work
piece
Feed rate is too fast Reduce feed rate.
File is worn
Inspect file if worn, replace. Refer to
Section 6.2.1—File
Replacement.
File is chattering
during cut
Feed rate is too fast Reduce feed rate
Lack of rigidity Increase radial compliance pressure
Too heavy a cut Decrease depth of cut, make multiple passes
Improper file selection Choose file designed for work material
File is worn
Inspect file. If worn, replace. Refer to
Section 6.2.1—File
Replacement.
Secondary burrs
are created on work
piece after cut
Incorrect feed rate Reduce feed rate
Too heavy a cut Decrease depth of cut, make multiple passes
Improper file selection Choose file designed for work material
File is worn
Inspect file. If worn, replace. Refer to
Section 6.2.1—File
Replacement.
Chip packing of file
Too heavy a cut Decrease depth of cut, make multiple passes
Not enough chip clearance
Use a file with fewer rasps
File stalls
Not enough or no drive air
Verify drive air regulator is operating at 90 psi (6.2 bar), and
check for leaks
File is not secure in holder
Properly tighten file in holder
Too much side load Decrease depth of cut, make multiple passes