Aurora of America 342A - Manual

INSTRUCTION AND REPAIR MANUAL
MODELS 341A, 342A AND 344A
6
SECTION 6 ITEM 340
DATED JUNE 1998
SUPERSEDES ITEMS 341, 342, 344
DATED MARCH 1992
© 1992 AURORA PUMP
NO. AURORA, ILLINOIS
NOTE
This repair manual is applicable to pump Models 341A,
342A and 344A. All photos illustrate Model 344A.
ATTENTION: SAFETY WARNINGS:
Read and understand all warnings before installation or servic-
ing pump.
OPERATIONAL LIMITS: *
Maximum Operating Pressure:
175 psi at Temperatures
to 150
O F (65.6°C)
Maximum Operating Temperature: 225°F (107°C)
* See ASTM A126/ANSI B16.1 for pressure/temperature rat-
ings of flanges.
ELECTRICAL SAFETY:
HIGH TEMPERATURE SAFETY:
HIGH PRESSURE SAFETY:
SERVICE
Your Aurora pump requires no maintenance other than periodic
inspection, occasional cleaning and lubrication of bearings
(MODEL 344A only). The intent of inspection is to prevent
breakdown, thus obtaining optimum service life. The liquid end
of the pump is lubricated by the fluid being pumped and there-
fore does not require periodic lubrication. The motor, however
may require lubrication, in which case, the motor manufactur-
er’s recommendation should be followed.
LUBRICATION OF IMPELLER SHAFT BEARINGS
The MODEL 344A pump is available with three options for
lubricating the shaft bearings. They are:
1. Regreasable (standard)
2. Oil Lubrication
3. Sealed Bearings, Permanent Lubrication
Regreasable bearings will require periodic lubrication and can
be accomplished by using the zerk or lubrication fittings in the
cartridge cap and power frame. Lubricate the bearings at regu-
lar intervals using a grease of high quality. Polyurea base
Warning:
Electrical Shock Hazard
All electrical connections are to be made by a qualified elec-
trician in accordance with all codes and ordinances. Failure
to follow these instructions could result in serious personal
injury, death or property damage.
Warning:
Electrical Overload Hazard
Insure all motors have properly sized overload protection.
Failure to follow these instructions could result in serious
personal injury, death or property damage.
Warning:
Sudden Start-Up Hazard
Disconnect and lockout power source before servicing.
Failure to follow these instructions could result in serious
personal injury, death or property damage.
Warning:
Hot Surface Hazard
If pumping hot water, insure guards or proper insulation is
installed to protect against skin contact to hot piping or
pump components. Failure to follow these instructions could
result in serious personal injury, death or property damage.
Warning:
Spraying Water Hazard
When servicing pump replace all gaskets and seals. Do not
re-use old gaskets or seals. Failure to follow these instruc-
tions could result in serious personal injury, death or proper-
ty damage.
Warning:
High Pressure Hazard
The pump is rated at a maximum of 175 psi at 150°F. Do
not exceed this pressure. Install properly sized pressure
relief valves in system. Failure to follow these instructions
could result in serious personal injury, death or property
damage.
Warning:
Expansion Hazard
Water expands when heated. Install properly sized thermal
expansion tanks and relief valves. Failure to follow these
instructions could result in serious personal injury, death or
property damage.