ww.oberdorfer-ppumps.com
PHONE 800-4448-11668; (315) 437-00361
FAX (315) 463-99561
FEATURES
Body: Durable Cast Bronze
Cam: Machined-in for improved impeller life
oprene
Shaft: Stainless Steel
Wear Plate: Replaceable / Reversible
Shaft Seal: Mechanical - Carbon/Ceramic/Buna
Macerator: Replaceable
Vacuum Switch: Dependable Spring Loaded Rubber
Diaphragm (manual re-set)
Ports: 1 1/2" Male NPT Inlet and OD Barb for
2" ID Hose, 1" Female NPT Outlet with
OD Barb for 1 1/2" ID Hose
Weight: Portable
VARIATIONS AVAILABLE
MODEL NO.
DESCRIPTION
406M-04
Pump Head with Standard Neoprene
Impeller
406M-07
Pump Head with Buna Impeller
406M-04N26
Pump with 1725 RPM 1 HP 1 Phase AC
ODP Motor
406MK-04N26
Pump with 1725 RPM 1 HP 1 PhaseAC
ODP Motor, Vacuum Switch and 8’ power
cord and plug
406M-04N95
Pump with 1725 RPM 1 HP 3 Phase AC
ODP Motor
406M-04N75
Pump with 1725 RPM 1 HP 12 VDC
TEFC Motor
406M-04N76
Pump with 1725 RPM 1 HP 24 VDC
TEFC Motor
406MG-03UGY
Pump with 3000 RPM 3 HP Gas Engine
406MK-04
Pump Head with Vacuum Switch
APPLICATIONS
MARINE:
Sewage Transfer, Dockside Pump-out,
Holding Tank Pump-out
MOBILE:
Campers, Campsites, Trailers, Mobile
Homes, General Utility,Emergency
INSTALLATION
Macerator Pump Model 406M
can be configured to run in either
rotation. However once the configuration is set, it becomes a uni-
directional pump. Given the macerator feature, the pump will not
function in both rotating directions during operation. Model 405M
can be converted to 406M using macerator conversion kit 10827.
Vacuum Switch Option
is intended to be used as a safety device
to protect pump and motor from damage caused by dry running
conditions. Switch must be mounted on the suction side of the
pump in order to sense a break in vacuum. Pump housing has
properly positioned convenient connection points for this pur-
pose. When the switch senses vacuum falling below 1 1/2" mer-
cury, it will open/break the power circuit to the single-phase 115V
/230V AC motor.
Caution:
For DC motor operation, the Vacuum Switch is only rated
32-115-230V up to 1/2 HP. It is not designed for direct use with 1 HP
12VDC or 1 HP 24 VDC motors. For Three Phase motors, the
vacuum switch must be wired, using a control circuit to actuate an
independent relay. Do not attempt to use the switch to disrupt two of
three power legs directly to three phase motors.
Suction Plumbing
considerations are important to assure adequate
fluid flow to the pump. Avoid collapsed or kinked hose conditions by
using pipe or reinforced hose. Avoid unnecessary bends or elbows.
Pump Heads with Vacuum Switch (406MK-04)
are Factory supplied
with Vacuum Switch mounted in the
"Factory Supplied" CCW rotation ori-
entation shown on pg.3. If reverse
rotation is desired, follow the dia-
gram to reposition the switch 14 ,
pipe nipple 15, pipe plug 16, pick
screw 27, port plug 17, and plate 20.
Note that there is a notch in plate 20
that is always oriented towards dis-
charge. Follow instructions for
mounting pump head to motor and
the wiring diagram to interface the
vacuum switch.
406MK-04N26 is supplied in the "Factory Supplied" CCW rotation ori-
entation shown on pg.3 and with the vacuum switch prewired to the 1
HP motor for 115 V operation. A convenient 8 ’ long power cord and
plug is provided.
406MK-04N26
406MG-03UGY
Installation, Operation, and Maintenance Instructions
Sewage Transfer/Macerator Close Coupled Rubber Impeller Pumps
406M
IOM
Part No.
1
2
3
4
5
6
7
8
9
10
11
12
13
Motor
Handle
Adapter
Screw
Collar
Key
Shaft
Key
Key
W asher
Seal
Screw
Body
Assy.
1 Reqd
1 Reqd
1 Reqd
4 Reqd
1 Reqd
1 Reqd
1 Reqd
1 Reqd
1 Reqd
1 Reqd
1 Reqd
1 Reqd
1 Reqd
406M-04
---
---
7459
5411
5886
6845
7519
5475
6947
6631
32230
5595
7040
406M-04N26
7055
9773
7459
5411
5886
6845
7519
5475
6947
6631
32230
5595
7040
406MK-04N26
7055
9773
7459
5411
5886
6845
7519
5475
6947
6631
32230
5595
7040
Part No.
14
15
16
17
18
19
20
21
22
23
24
25
26
Vacuum
Nipple
Pipe
Pipe
Impeller
Gasket
Plate
W heel
Screw
Cover
Screw
W asher
Jam Nut
Switch
Plug
Plug
1 Reqd
1 Reqd
2 Reqd
1 Reqd
1 Reqd
2 Reqd
1 Reqd
1 Reqd
1 Reqd
1 Reqd
4 Reqd
1 Reqd
1 Reqd
406M-04
---
---
7043
7189
6603
7188
7101
7075
6437
7100
8229
7255
7256
406M-04N26
---
---
7043
7189
6603
7188
7101
7075
6437
7100
8229
7255
7256
406MK-04N26
7046
7050
7043
7189
6603
7188
7101
7075
6437
7100
8229
7255
7256
Part No.
27
28
29
30
31
32
33
34
*Repair Kits contain items
Pick
Cord
Terminal
W ire
W ire
W asher
Screw
Cord
Repair
11, 18 & 19.
Screw
Spade
Nut
Nut
(Handle) (Handle)
Kits*
Vacuum Switch Repair Kit
1 Reqd
1 Reqd
1 Reqd
1 Reqd
2 Reqd
2 Reqd
2 Reqd
1 Reqd
is p/n 10798. Kit contains
406M-04
7258
---
---
---
---
---
---
---
10956
items 14, 15, 29 & 34.
406M-04N26
7258
7044
7297
9850
9857
6831
5974
---
10956
406MK-04N26
7258
7044
7297
1
9850
9857
6831
5974
7047
10956
1
Five Required.
Items 28 - 34 are not shown on illustration.
DIMENSIONS
EXPLODED VIEW & PARTS LIST
REV. 02/08
ww.oberdorfer-ppumps.com
PHONE 800-4448-11668; (315) 437-00361
FAX (315) 463-99561
