Thrush RB CCirculators User Manual
OPERATING & MAINTENANCE INSTRUCTIONS
FOR
MODEL R & RB CIRCULATORS
11
INSTALLAT ION
The Thrush Model R and RB circulators are designed to be mounted with the motor in a horizontal
position. However, the pump casing may be rotated to flow in either a horizontal or vertical
arraignment by removing the four casing bolts and rotate the pump body. Both circulator and motor
oil cups must always be up
WIRING
The model R and RB (.08HP 115/60/1) motors have BX type electrical connections. The two wire
leads are located under the terminal cover. Leads must be connected securely. Do not use rigid
conduit to connect motor to power. It is recommended to use 18" of flex conduits fo r moto r
connection.
OPERATION
Pumps should never be run dry; seal damage is likely to occur. The model R and RB circulator
brackets have oil-impregnated bearings. It is necessary to add 1/2 ounce of SAE #30 non-detergent
oil upon installation. Add as necessary every three months. To check and add the oil, remove the
four slot head screws on the bearing assembly cover plate, lift off the cover plate. Next, remove the
wick from around the shaft. The wick should be oil saturated, if not, add oil to the wick un til
saturated. Add 12 - 15 drops of SAE#30 oil to bottom of reservoir and replace wick around the shaft
and replace the cover plate. Lubrication should be checked every three months. Motor oil cups
should be f illed prior to startup and checked on the same maintenance schedule as the pump.
9636-0235
3/09
15
16
1
5
10
2
12
4
ITEM NUMBER PART NUM BER
1 7304-0001
2 1104-0900
3 9600-3260
4 9754-0020
5 7301-4000
10 1104-901
11 9637-0100
12 9600-1051
15
810-1
810-2
810-3
810-4
16 810-191
ITEM NUMBER PART NUM BER
1 7304-0001
2 1104-0900
3 9600-3260
4 9754-0020
5 7301-4000
10 1400-900
11 9637-0100
12 9603-1091
15
811-1
811-2
811-3
811-4
16 811-191
Motor 115/60/1 ph 1/12 HP 48 Frame ODP Enclosed
Casing (Cast Iron)
DESCRIPTION
DESCRIPTION
Barrell Spring Coupling
3/4" 2-Bolt Steel Flange Set
1" 2-Bolt Steel Flange Set
1 1/4" 2-Bolt Steel Flange Set
1 1/2" 2-Bolt Steel Flange Set
Barrell Spring Coupling
Motor Cradle (Fits 48 Fram e-Resilient Mount Motors)
Impeller (Brass)
Flange Gasket 2 bolt (Included in P/N 8 10-191)
Seal Kit - Type B
Bracket Assembly - CH-15N
Impeller (Brass)
Flange Gasket 2 bolt (Included in P/N 8 10-191)
Seal Kit - Type B
Nuts, Bolts, Gaskets for 2 Bolt Flange Sets
Nuts, Bolts, Gaskets for 2 Bolt Flange Sets
MODEL " R" CIR CULATOR
PART NUM BER 1104-1010
MODEL " RB" CIR CULATOR
PART NUM BER 1400-1010
Bracket Assembly - B-1
Motor 115/60/1 ph 1/12 HP 48 Frame ODP Enclosed
Casing (Bronze)
3/4" 2-Bolt Bronze Flange Set
1" 2-Bolt Bronze Flange Set
1 1/4" 2-Bolt Bronze Flange Set
1 1/2" 2-Bolt Bronze Flange Set
Motor Cradle (Fits 48 Fram e-Resilient Mount Motors)
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