Attwood 4202 User Manual

Heavy duty bilge pump

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3

®

Heavy Duty Bilge Pump

Installation Instructions

4030, 4060, 4031, 4061

Attwood marine hardware, navigational lighting, bilge pumps, and other
marine accessories are specified more than any other brand by America’s
best-known boat manufacturers as original equipment. Look to Attwood for
quality replacement parts and marine accessories.

SAVE THESE INSTRUCTIONS

Form Number 69317 Rev. D

03/10

FEATURES
Attwood Heavy Duty Bilge Pumps are the newest development in high output
pumps. All models have a removable housing for simple installation and easy
cleaning. They connect to 12-volt D.C. systems only. There are two ways to
configure your Heavy Duty Bilge Pump – Automatic Operation

or Manual

Operation. The bilge pump system can be converted to fully-automatic
operation by installing the Attwood Automatic Float Switch, Part No. 4201
or 4202.

AUTOMATIC OPERATION
All boats over 20' (6.1 m) in length which have sleeping accommodations
(excluding fold-out cockpit seats) require automatic bilge pump systems. For
fully-automatic operation, follow the

AUTOMATIC FLOAT SWITCH INSTAL-

LATION and AUTOMATIC OPERATION WIRING instructions.

MANUAL OPERATION
For manual operation of your bilge pump system, disregard the references to
Automatic Float Switch installation and operation.

Check the chart below to select the proper pump, fuse size, and thru-hull
connector for your boat application:

DO NOT use pump to remove gasoline, oil or other flammable liquids.
Doing so could result in fire, explosion, and serious personal injury.

Always use the fuse amperage rating specified for your pump model.
Failure to do so could result in serious personal injury or fire hazards.

Attwood bilge pumps are designed to exhaust standing

WATER ONLY.

They are not intended to prevent rapid accumulation of on-board water
due to rough weather, severe storms, hull damage, and/or other unsafe
navigational conditions.

Do not allow materials containing acetic acid (vinegar smell) such as
silicone rubber sealant to contact the plastic parts of the pump. They
may react with the plastic, causing cracks and pump failure.

Notice:
Discharge of oil prohibited.
The Federal Water Pollution Control Act
prohibits the discharge of oil or oily waste into the contiguous zone.
Violators are subject to a penalty of $5,000.

REQUIRED FOR INSTALLATION

Drill and suitable drill bits

Screwdriver and four #8 stainless steel pan head screws

Attwood thru-hull connector of appropriate size (if not already installed
on boat; see chart)

Marine sealant

1-1/8" (29mm) inside diameter smooth-bore hose of suitable length

Two appropriate hose clamps

16-gauge wire, brown

16-gauge wire, black

Attwood 2-Way Dash-Mounted Control Switch (Part No. 7615), 3-Way
Switch (Part No. 7615A)

Fuse holder and appropriate fuse (see chart)

Two insulated terminal connectors for 16-gauge wire

Suitable materials to waterproof electrical connections

If automatic operation is desired:

Attwood Automatic Float Switch, Part No. 4201 (with cover) or
4202 (without cover)

Shim for float switch mounting

Three additional #8 round-head stainless steel attaching screws

The following materials are needed if no pump mounting pad is in place:

• 1/2" (1.27 cm) thick marine plywood block large enough to mount pump

(and automatic float switch, if used)

• Hand-held roller

• Fiberglass—18 oz. (.5kg) mat or woven roving

• Polyester resin and catalyst

MOUNTING PREPARATION

Pump
Part

Pump

Amp

Outlet Hose

Thru-Hull

Number

Model

Volts

Fuse

Inside Dia.

Connector

4030, 4031

HD1700

12VDC

10

1-1/8" (29mm)

3874

4060, 4061

HD2000

12VDC

12

1-1/8" (29mm)

3874

Recommendations are based on amount of gallons exhausted per hour
(GPH). GPH measurements are typical of production pumps tested using
smooth-bore hoses, at 0' head. “Head” refers to the vertical distance between
the pump nozzle and the water discharge location. GPH is reduced as head is
increased.

The chart below shows gallons and liters per hour ratings for 0' head and 3'
(91.4 cm) head. GPH/LPH may also vary depending on power source, hose
type, and other variables.

ABYC Specifications
13.6 volts DC
(GPH=Gallons Per Hour)

ISO Specifications
12.0 volts DC
(LPH=Liters Per Hour)

GPH

LPH

GPH

LPH

Part

Open

Open

3'

3'

Amp

No.

Model

Flow

Flow

Head

Head

Draw

4030, 4031

HD1700

1,700

6,450

1,300

4,920

6.0

4060, 4061

HD2000

2,000

7,600

1,550

5,867

8.0

The pumps can run dry for limited periods of time; however, doing so could
cause pump failure.

WARNING:
To prevent personal injury, always disconnect the power source when
installing or servicing any electrical product. Remove vessel from water
when using any 110/120 or 220 Volt AC power tools.

Figure 1

1/2" (Minimum) Thick Mounting Pad

Hose

Thru-Hull Connector

Hose Clamp

Water
Line

Hull

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