302M-03_2006
MODEL
302M-03
BRONZE
RUBBER IMPELLER PUMP
FITS ON PHASOR MARINE DIESEL GENERATOR KUBOTA MODELS:
V1903-BGE, V2203-BGE, F2803-BGE, D1703-BGE
PERFORMANCE
PIPE SIZE: 3/4”
Capacity Water at 60oF
Pump
RPM
Model
800
1750
302M-03
2500
3000
3450
Feet Hd.
0
20
40
60
80
PSI
0
8.7
17.3
26.0
34.6
GPM
5.3
4.2
2.50
---
---
HP
1/4
1/4
1/4
---
---
GPM
12.0
10.5
9.2
6.7
3
HP
1/3
1/3
1/2
1/2
1/2
GPM
16.0
14.5
12.5
9.3
6
HP
1/2
1/2
3/4
3/4
3/4
GPM
19.0
17.8
15.5
12.7
9.3
HP
3/4
3/4
3/4
3/4
3/4
GPM
20.5
19.5
18.8
17.5
12.5
HP
3/4
3/4
1
1
1
GPM = Gallons Per Minute
RPM = Revolutions Per Mintue
PSI = Lbs. Per Square Inch Pressure
Feet Hd = Feet Head Pressure
HP = Horsepower
FEATURES
„ Bronze Construction - Corrosion Resistance
„ Large Suction and Discharge Ports
„ Teflon(R)* Barrier Seals Protecting Ball Bearings
„ Mechanical Seal
„ Seal: The Mechanical Seal has a Buna N Elastomer,
Stainless Cage & Carbon Graphite/Ceramic Wearface
„ Two Sealed Ball Bearings Spaced for Maximum
Load Ability
„ Large Vent & Drain Openings Separate Seal
& Bearing Areas
„ Neoprene Impeller
„ High Chrome Nickel Stainless Steel Shaft
„ Extra Capacity Ball Bearings Plus
Rugged Construction for Prolonged Service Life
„ Impeller & Mechanical Seal Easily Replaced
„ Machined in Cam
ROTATION
Direction of shaft rotation determines inlet and outlet
ports (see line drawing)
MOUNTING
Pump will operate satisfactorily when mounted in any
position. DO NOT RUN DRY. Rubber impeller pumps generate high rubbing friction unless lubricated by liquid pumped.
Lack of liquid will cause impeller to burn up.
DRIVE
Tang drive shaft extension.
LIQUIDS AND TEMPERATURE
While primarily intended for engine coolant, other liquids compatible with neoprene can be pumped including fresh and salt water
solutions and mild chemicals. Do not pump severe solvents or acids.
When possible, flush pump with fresh water after each usage.
Extremes of cold and heat will affect impeller life. Limits of 40o
to 140o F should be observed. Do not allow liquid in pump to freeze.
Drain pump by loosening cover screws. Fresh water and sea water
only.
SUCTION LIFT
Suction lift of 15 feet is possible when impeller is wet. Suction
lines must be air tight in order for pump to self prime. A foot valve at
beginning of suction line is recommended.
IMPELLER REPLACEMENT
The impeller must be replaced if it is worn out or has been
damaged by debris or by running the pump dry. Symptoms of a
defective impeller are low pumping pressure and low flow causing
overheating of the engine.
To replace the impeller remove screws and cover. Pull out the
impeller with nose pliers or two screwdrivers. Be careful not to dent
(continued on back)
*Teflon(R) is a registered trademark of DuPont. Teflon(R) or equivalent PTFE will be used.
www.oberdorfer-pumps.com
PHONE (800) 448-1668; (315) 437-0361
FAX (315) 463-9561
MODEL
302M-03
BRONZE
RUBBER IMPELLER PUMP
DIMENSIONS AND PARTS LIST
Pump No.
11
2
3
4
5
6
7
Seal
Ret.
Screw
Ret.
Ret.
Bearing,
Lipseal
Assy.
Ring
Ring
Ring
Ball
Teflon(R)*
2 Reqd
2 Reqd
5928
6609
1 Reqd 1 Reqd 4 Reqd 1 Reqd 2 Reqd
302M-03
32886
5382
5504
5925
5926
81
9
Impeller Cover
10
111
12
13
Key
O-Ring
Body
Shaft
Repair
Kit1
1 Reqd 1 Reqd 1 Reqd 1 Reqd 1 Reqd 1 Reqd
6620
6736
6739
8231
9962
9963
12137
1
Repair Kit contains items 1, 8 & 11.
(Continued from front)
the pumping chamber with these tools. When inserting new impeller,
line up key slot in impeller with the key in the shaft. Use oil on shaft
and avoid forcing the impeller onto the shaft.
The impeller should also be removed for storage periods to prevent the blades from taking a permanent set.
SEAL REPLACEMENT
If water drips from the weep hole or from the area where the
shaft exits the pump, the seal is defective and must be replaced. While
the Teflon(R)* barrier seals provide a first line of defense, prolonged
running of the pump with a leaky seal can destroy the ball bearings
5/06
www.oberdorfer-pumps.com
resulting in catastrophic pump failure and engine shut-down.
For seal replacement, the pump must be removed from
the engine and disassembled in order to gain access to the
seal area. Both mechanical seal components (stationary and
rotating member) must be replaced at the same time.
Refer to drawing above for seal location and part numbers for ordering purposes.
Specifications are subject to change without notice.
PHONE (800) 448-1668; (315) 437-0361
FAX (315) 463-9561
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