WIRING INSTRUCTIONS

WARNING:

Model 4137: Use 12-volt DC power source. Model 4138: Use 24-volt DC power source. Higher DC voltage or AC voltage may cause serious damage and/or personal injury.

Circuit must be properly fused to prevent possible fire hazard and/or damage to pump and switch should the pump become jammed.

Caution:

All connections should be made using crimp-on connectors.

1. Electrical connections should be made as shown in Figure 4.

Figure 4

 

 

 

 

4-Amp. Model 4137

 

 

 

 

 

 

 

 

 

 

72" (183 cm)

 

 

 

 

2-Amp. Model 4138

 

 

 

 

 

 

 

 

 

Maximum Length

 

 

 

 

 

 

 

 

 

 

 

 

 

Two-Terminal, “On-Off” Type

 

 

 

 

 

 

 

 

From (+) Terminal

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

to Fuse Holder

Switch Can Be Attwood

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Rocker, Push-Pull, or

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Toggle Type

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Sump System

 

 

 

Brown Wire

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Black Wire

 

+

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DC Battery

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12-Volt DC Model 4137

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

24-Volt DC Model 4138

2.Using butt connectors for 16-gauge wire, splice fuse holder into positive lead (brown) in a location easily accessible for changing fuses. Install the specified fuse.

3.Run brown wire from sump system directly to the positive (+) battery terminal. If using manual on/off switch, run brown wire from sump system to the switch, then to the positive (+) battery terminal.

4.Connect black wire from the sump pump system to the negative (-) battery terminal to complete the circuit.

5.Re-connect power and water, and test unit for proper installation. Feed water into the sump; if the flow appears to be too low, check wire connections.

Note:

Reversed connections will result in opposite impeller rotation, which drastically reduces capacity and can cause premature pump failure.

MAINTENANCE INSTRUCTIONS

Drain the unit during the winter months when not in use. Disconnect and drain all lines to the unit. Remove hold-down clamps and empty the unit. In some installations, it may be impossible to completely drain the system. Add a non-toxic RV/marine antifreeze to the shower drain and circulate it throughout the system.

For improved performance, periodically clean the filter. Remove the cover and slip the filter out for easy cleaning. Re-install the filter and cover when finished.

TROUBLE SHOOTING

 

 

Problem

Probable Cause

Pump will not turn on

Line is plugged

 

Line is broken

 

• No power to the pump

 

Fuse is blown

 

System improperly wired

• Manual switch is not turned on

• Air is trapped in box—cover needs to be vented

• Float Switch is jammed in “off” position

Problem

Probable Cause

Pump will not turn off

System improperly wired

 

• Float switch is jammed in

 

 

“on” position

 

• Box not mounted level

 

• Air is trapped in box—cover

 

 

needs to be vented

Pump output is low

System wired backwards

 

Line is plugged/restricted

System leaking at top

• Air is trapped in box—cover

 

 

needs to be vented

System is leaking at

• Hose clamp is missing

inlet/outlet connection

• Hose clamp is loose

 

 

• Pipe connection is loose

Pump turns on but does not pump

Line is plugged

 

• Outlet hose does not rise

 

 

continuously to thru-hull

Water returns to sump from

Check value plugged

outlet hose

 

or damaged

ATTWOOD LIMITED WARRANTY

ATTWOOD CORPORATION, 1016 North Monroe, Lowell, Michigan 49331 (“Attwood”) warrants to the original consumer purchaser that Attwood brand products will be free from defects in materials and workmanship under normal use and service for one year from the date of original consumer purchases.

This limited warranty is not applicable if the product has been damaged by accident, improper installation, unreasonable or improper use, lack of proper maintenance, unauthorized repairs or modifications, normal wear and tear, or other causes not arising out of defects in materials or workmanship.

Attwood products are warranted for use on pleasure boats. Any other use — including but not limited to commercial, racing, or non-marine

use — are not covered under this warranty. Attwood’s obligation under this warranty is limited to repair of the product at Attwood’s plant or replacement of the products at Attwood’s option without expense to the original consumer purchaser. Any expenses involved in the removal, reinstallation or transportation of the product are not covered by this warranty.

The product must be returned to Attwood’s plant at the address above, postage prepaid, and insured with proof of original purchase including date.

If Attwood is unable to replace the product and repair is not commercially practical or cannot be timely made, or if the original consumer purchaser is willing to accept a refund in lieu of repair or replacement, Attwood may refund the purchase price, less an amount for depreciation. The acceptance by Attwood of any product returned or any refund provided by Attwood shall not be deemed an admission that the product is defective or in violation of any warranty. Products that are replaced or for which a refund is issued become the property of Attwood.

THIS WARRANTY IS ATTWOOD’S ONLY EXPRESS WARRANTY OF THIS PRODUCT. NO IMPLIED WARRANTY SHALL EXTEND BEYOND ONE (1) YEAR FROM THE DATE OF ORIGINAL CONSUMER PURCHASE. ATTWOOD SHALL NOT BE LIABLE FOR ANY DAMAGES FOR LOSS OF USE OF THIS PRODUCT, NOR FOR ANY OTHER INCIDENTAL OR CONSEQUENTIAL DAMAGES, COSTS OR EXPENSES.

Some states do not allow limitations on how long an implied warranty lasts or the exclusion or limitation of incidental or consequential damages, so the above limitations and exclusions may not apply to you. This warranty gives you specific legal rights, and you may have other rights which vary from state to state.

© 1998

Attwood

Subsidiary Steelcase Inc. 1016 N. Monroe Street, Lowell, MI 49331-0260

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Attwood 4137, 4138 Wiring Instructions, Maintenance Instructions, Trouble Shooting, Problem Probable Cause

4137, 4138 specifications

The Attwood 4138 and 4137 are notable models in the realm of marine hardware, specifically designed to enhance the efficiency and performance of boating experiences. These models stand out for their robust construction and innovative features that cater to the needs of both recreational and professional boaters.

The Attwood 4138 model is primarily recognized for its advanced bilge pump system, which is essential for effective water management on a boat. One of the main features of this model is its automatic operation, ensuring that water is expelled efficiently without the need for manual intervention. This model incorporates a powerful motor that provides reliable performance and longevity, reducing the likelihood of malfunction during critical times. The 4138 is designed with a compact footprint, allowing for easy installation in tight spaces, which is a common requirement in marine vessels.

On the other hand, the Attwood 4137 tends to focus on versatility and adaptability. This model is renowned for its multi-purpose functionality, making it suitable for various applications beyond just bilge pumping. The 4137 typically boasts a lightweight design that facilitates handling and installation, which is particularly advantageous for smaller boats or for those who frequently change equipment setups. Additionally, the incorporation of corrosion-resistant materials in both models ensures durability and a longer lifespan, even in harsh marine environments.

Both the 4138 and 4137 feature user-friendly interfaces that allow for seamless operation and maintenance. They often come equipped with intuitive indicators, making it easy for users to assess their operational status at a glance. Moreover, the technology embedded in these models ensures energy efficiency, which is a crucial aspect for modern boating practices where sustainability and conservation are gaining prominence.

In terms of characteristics, these Attwood models generally emphasize safety and reliability. Their designs undergo rigorous testing to meet marine industry standards, providing boaters with peace of mind. Furthermore, they often include enhancements like built-in thermal protection to guard against overheating, thereby adding an extra layer of safety.

In summary, the Attwood 4138 and 4137 are exemplary models that showcase cutting-edge technology and features tailored for marine environments. With their robust construction, automatic and multi-purpose functionalities, energy efficiency, and commitment to safety, these models uphold Attwood's reputation for quality and innovation in the boating industry.