IOM-48
22
SECTION VII
VII. TROUBLE SHOOTING GUIDE
Reference the IOM of the valve body this actuator is unitized with for additional information on Trouble Shooting.
1.
Air
leakage.
Possible Causes
Remedies
A. Leakage at diaphragm-to-upper casing
A1. Overpressure. Check source of air supply and
fl
ange.
determine if pressure is greater than indicated in
Table 1; reset airset pressure as required.
A2.
Tighten
casing
fl
ange bolting (27, 28, 41 & 42)
B. Leakage at handwheel gland-to-upper case.
B. Faulty O-ring (62); replace O-ring.
C. Leakage at manual handwheel threads.
C. Faulty seal (61); replace thread seal.
D. Leakage around stem on side where yoke
D1. Failure of diaphragm (6); replace diaphragm.
bolts to arm housing.
D2. Faulty seal (56); replace seal.
SECTION VIII
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"),
aparts 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 re
fl
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” re
fl
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
identi
fi
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 speci
fi
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.
