Gardner denver Oberdorfer pumps 406m-04 Manual

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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 Washer 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

PartNo. 14151617181920212223242526

Vacuum Nipple Pipe Pipe Impeller Gasket Plate Wheel Screw Cover Screw Washer 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 Wire Wire Washer 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

729719850 9857 6831 5974 7047 10956 1Five Required.

Items 28 - 34 are not shown on illustration.

DIMENSIONS

EXPLODED VIEW & PARTS LIST

REV. 02/08

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Motor Mounting: Pump heads are supplied with adapters and

coupling hardware to directly attach to Nema 56C frame motors.

Attach the adapter 3 to the motor with (4) bolts 4. Place collar 5

loosely over pump shaft 7 aligning the collar setscrew over the key-

way slot. Loosen clamp bolt 15.

Setting Mechanical Seal Compression:

Set the motor on its base on the edge of a firm flat surface with the

shaft key oriented upwards. While holding the pump head upside

down, orient the pump shaft keyway slot to the window and clamp

slot for easy viewing and collar access. With the pump still invert-

ed, gradually slide pump head onto the adapter bracket hub and

onto the motor shaft taking care to align keyways. Place edge of

key 6 into shaft 3 key slot. With the help of a flathead screwdriver

held against the rear of key 6, continue to slide pump head onto

motor shaft until key drops fully into position, engaging motor shaft

to pump shaft. Slide pump head towards adapter -but do not fully

shoulder. Rather, leave 0.030" to 0.050" of gap between adapter

shoulder and pump body. Slide collar 5 further on shaft 7 and over

key 6. Tighten collar set screw directly over key.

Rotate pump head 180 degrees from the inverted position to the

standard upright position. Slide pump head further onto adapter

bracket until it shoulders fully. Tighten clamp bolt 15.

OPERATING INSTRUCTIONS

PRE START-UP

WARNING: Before attempting disassembly and service, discon-

nect motor power and release all pressure within the system.

Failure to disconnect and lockout electrical power before attempt-

ing any maintenance can cause severe personal injury.

1) Rubber impellers may stick to inner wall of pump body when

units have been in dry storage for extended periods. In this case,

remove plug 17 from pump and add lubricant to the inside of the

pump body. In rare instances, it may be necessary to remove

cover 23 to free the shaft manually by turning the macerator wheel.

2) On initial start-up, prime the pump to prevent dry-running the

impeller. For units equipped with Vacuum safety switch, push

down the start/restart lever and hold until the pump is primed and

operating.

START-UP and RUNNING

3) On subsequent starts, as long as the impeller remains wet,

pump is self-priming with suction lifts of 15 feet possible.

Caution: DO NOT RUN DRY for more than 30 seconds. Lack of

liquid will damage impeller.

4) Caution: When the pump is operated against a clogged suction

strainer in a fluid starved condition, there may still be adequate

vacuum present to keep switch contacts closed (for units with

optional vacuum switch). Keep suction strainer clean to retain

switch protection.

5) Freezing temperatures - drain the unit by loosening (4) cover

screws 24 and loosening plate 20. Retighten and fill the pump

chamber with a methyl alcohol based anti-freeze (compatible

with neoprene impeller). Do not use petroleum-based anti-

freeze.

SERVICE INSTRUCTIONS

Wet End Repair Kit 10956 contains impeller, seal, and gasket

Vacuum Switch Repair Kit 10798 contains switch, pipe nipple,

and power cord

WARNING: Before attempting disassembly and service, dis-

connect motor power and release all pressure within the sys-

tem. Failure to disconnect and lockout electrical power before

attempting any maintenance can cause severe personal injury.

Disassembly

Impeller changing:

1) Remove (4) cover screws 24 and cover 23

2) Remove shaft screw 22, macerator wheel 21, plate 20,

gaskets 19, and key 9

3) Pry impeller 18 out of body 13 using 2 screw drivers

Shaft Seal changing:

4) Remove shaft key 8

5) Loosen screw 12 and remove pump body 13 from adapter

6) Press seal head 11 out of pump body and slide wear face

(with seat) off pump shaft.

Reassembly

7) Slide new wear face (with seat) onto pump shaft to shoulder

position

8) Press new seal head into pump body 1/16 below surface

using Loctite, Permatex or similar sealant between seal OD

and housing bore.

9) Reassemble pump onto adapter. Tighten screw 12

10) Install key 8 into pump shaft and push new impeller 18 on

shaft 7 into pump body 13

11) Install (1) gasket 19 and plate 20 loosely against pump

body face 13.

12) Install key 9 and macerator wheel 21 onto shaft. Secure

with screw 22 using Loctite 222.

13) Place second gasket against outer face of plate 20.

Carefully position kidney-shaped opening in plate 20 relative to

pump body consistent with the desired rotation and outlet direc-

tion. See diagram below.

14) While holding plate 20 and gaskets 19 (one on each side of

plate 4) in position, attach cover 24 with (4) screws 24. Tighten

screws securely.

15) Check and reset mechanical seal compression following

instructions above.

ww.oberdorfer-ppumps.com PHONE

800-4448-11668;

(315)

437-00361 FAX

(315)

463-99561 ww.oberdorfer-ppumps.com PHONE

800-4448-11668;

(315)

437-00361 FAX

(315)

463-99561