Cashco Ranger QCT - Manual (Page 18)

IOM-Ranger 18
SECTION VIII
7. Valve does not respond to changes in signal.
Possible Cause Remedy
A. Improper control action(s). A1. Disconnect signal to actuator to determine
control valve action.
A2.
Determine controller output action.
A3. Determine positioner output action.
B. Plug tongue and stem grove not engaged.
Carbon bushing insert in retainer sleeve
assembly is worn.
B1. Replace carbon bushing insert.
Refer to Figure 2 for critical dimension.
B2.
Consider change to stellite bushing.
C. Damaged positioner linkage. C. Inspect linkage. Replace if necessary.
D. Damaged actuator stem linkage. D. Replace linkage. Ensure not overpressuring.
E. Plug bearings not properly fi tted during
reassembly
E. Reinstall bearings – shorter bearing fi ts plug
shaft that has tongue milled on it.
F. Plug tongue and stem groove connection F. Replace both stem and plug. Determine cause
of this failure prior to reassembly.
NEW REPLACEMENT UNIT:
Contact your local Cashco, Inc., Sales Rep re sen-
ta tive with the Serial Number and Product code.
With this information they can provide a quotation
for a new unit including a complete description,
price and availability.
– 7 –
VIII. ORDERING INFORMATION
NEW REPLACEMENT UNIT vs PARTS "KIT" FOR FIELD REPAIR
To obtain a quotation or place an order, please retrieve the Serial Number and Product Code that was stamped on
the metal name plate and attached to the unit. This information can also be found on the Bill of Material ("BOM"),
a parts list that was provided when unit was originally shipped. (Serial Number typically 6 digits). Product Code
typical format as follows: (last digit is alpha character that refl ects revision level for the product).
PARTS "KIT" for FIELD REPAIR:
Contact your local Cashco, Inc., Sales Rep re sen-
ta tive with the Serial Number and Product code.
Identify the parts and the quantity required to repair
the unit from the "BOM" sheet that was provided
when unit was originally shipped.
NOTE: Those part numbers that have a quantity indicated
under "Spare Parts" in column "A” refl ect minimum
parts required for inspection and rebuild, - "Soft
Goods Kit". Those in column “B” include minimum
trim replacement parts needed plus those "Soft
Goods" parts from column "A".
If the "BOM" is not available, refer to the cross-
sectional drawings included in this manual for part
identifi cation and selection.
A Local Sales Representative will provide quotation
for appropriate Kit Number, Price and Availability.
CAUTION
Do not attempt to alter the original construction of any
unit without assistance and approval from the factory. All
purposed changes will require a new name plate with ap-
propriate ratings and new product code to accommodate
the recommended part(s) changes.
The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are not to be con-
strued as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability. We reserve the right to modify
or improve the designs or specifi cations of such product at any time without notice.
Cashco, Inc. does not assume responsibility for the selection, use or maintenance of any product. Responsibility for proper selection, use and maintenance of any
Cashco, Inc. product remains solely with the purchaser.