Perma Pure Baldwin-Series 10410 - Manual (Page 30)

AIR DIMENSIONS INCORPORATED
1371 West Newport Center Dr., Suite 101, Deerfield Beach, FL 33442 - Phone 954-428-7333 or 800-423-6464 Fax 954-360-0987
http://www.airdimensions.com e-mail address - [email protected]
MINI DIA-VAC®
MAINTENANCE AND DISASSEMBLY INSTRUCTIONS
A. General Operations Characteristics
1. Normal motor coil temperatures may be 160 - 180 degrees F. Winding insulation is Class B.
Please note the two fans are different, so before removing the fans, note which side they belong on.
2. To check pumping efficiency, employ suitably damped gauges connected so as to dead-end either
pressure or vacuum.
NOTE: Check each separately, One or the other port must be open during this test.
Use 0-60 PSI pressure gauge and 0-30 inch hg. vacuum gauge, (or mercury manometer).
Maximum pressure should be at least 33 PSIG for the .160 eccentric.
Maximum vacuum should be 21 inches Hg when using the .160 eccentric.
3. Match electrical power to motor
4. Do not start pump and motor with load of pressure or vacuum on pump head.
5. Pumps are intended for gaseous operation, eliminate liquids entering pump.
6. Nominal running amps for Mini Dia-Vac Ÿ at 115/230 volts are 1.7/0.8
B. Maintenance Procedures
1. Motor oiling - No oiling or other lubrication addition is necessary at all. All bearings are pre-
lubricated and shielded from external contamination.
2. Diaphragm Replacement (also see Maintenance Procedure Below):
a. Standard EPDM (part 4302 or kit 11309) - Operating life can be five years or more under
conditions of light pressure or vacuum loads and infrequent operation. Over 20 PSI and constant
operation may require 3 month diaphragm inspection procedure. High ambient conditions over 100
degrees F may also decrease diaphragm life.
b. Teflon coated EPDM (part 4301 or kit 11305) - Satisfactory operation can be attained for periods
of 12 months or more under conditions of light pressure of vacuum loads.
c. Viton/Nomex (part 4303 or kit 11307) - same as b above.
Where critical processes may involve the pumping of corrosive or toxic gas media, it is
recommended that a monthly check of the diaphragm be part of a scheduled maintenance procedure.
Air Dimensions Inc. will supply recommendations on the choice of diaphragm material and or pump
head construction on request.