Installation Guide for Attwood Tsunami Bilge Pumps

Tsunami Bilge Pump

4606, 4608, 4612, 4613 Series

WARNING!
Read all instructions carefully before installing and using this product. To prevent personal injury, disconnect the power source when installing or servicing this product. Always remove the boat from the water before using 120V AC power tools.

DO NOT use pump to remove gasoline, oil or other flammable liquids. 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, hull damage, and/or other runsafe navigational conditions.

MATERIALS REQUIRED

  • - Three number 8 stainless fasteners, suitable length for mounting surface
  • - Cordless drill and 1/8in (3mm) bit
  • - Hose clamps (Attwood number 9185, 2 per connection)
  • - Mounting pad: marine plywood, fiberglass cloth and resin
  • - Manual (number 7615A) or automatic float switch (4201 or 4202) Fuel-resistant, reinforced smooth bore outlet hose

INSTALLATION LOCATION

  1. Position pump in the lowest accessible part of the bilge. On sailboats, location should be centered over keel. (Figure 1)
  2. Do not mount pump directly to hull. Attach base strainer to a marine plywood mounting pad that is fiberglassed to the hull.

HOSE CONNECTION INSTRUCTIONS
IMPORTANT: To prevent airlock, hose must rise continually upward to the thru-hull connector with no dips or sharp bends. Support hose if necessary.

  1. Orient pump outlet for a direct, unobstructed hose path.
  2. Secure all connections with hose clamps.
  3. If no thru-hull connector exists, install at 12in min. (25mm) above water line. Apply marine sealant around thru-hull flanges on interior and exterior of hull.

PUMP MOUNTING INSTRUCTIONS

  1. To access mounting holes, remove base strainer. Hold housing with one hand, depress locking tab with other. Twist counter-clockwise and remove pump housing from base. It is not necessary to remove motor cartridge for installation. (Figure 2)
  2. Use base as template to mark 3 mounting holes in mounting pad.

CAUTION: Do not drill through hull. Before drilling be sure mounted pump will be correctly positioned with pump nozzle pointing toward thru-hull connector. (Figure 1)

  1. Remove base. Drill three 1/8inch (3mm) pilot holes at marked locations.
  2. Replace base. Attach with number 8 stainless steel fasteners.
  3. Re-attach pump to base. Insert into base, twist clockwise until tab snaps in and prevents turning. (Figure 2)

WIRING INSTRUCTIONS
Make all wire connections above the highest water level. Use marine grade wire connectors only. Waterproof all connections with suitable materials. (Figure 3)

NOTE: Failure to make waterproof connections and fuse pump properly will void the product warranty.

  1. Connect positive lead (brown) to switch. For automatic operation, use Attwood Automatic Float Switch (number 4201 or 4202). Connect negative lead (black) to ground.
  2. Install fuse holder within 72in (183 cm) of the positive battery terminal. Use standard automotive (SAE J554) glass tube type electrical fuse.
  3. To test system, feed water into the pump. If flow appears low, be sure wires have been connected properly: Brown-to-positive (switch), and black-to-negative. Reversed wiring reduces performance and can cause pump failure.

MAINTENANCE AND TROUBLESHOOTING
Disconnect power to the pump. Regularly inspect and clean to be sure that debris is not blocking the strainer or impeller.If pump runs but does not pump water:

  1. Check for airlock. Be sure that outlet hose runs upward to the thru-hull connector, with no dips. (Figure 1)
  2. .Remove pump housing from base. Remove debris from chamber and impeller. Be sure impeller is firmly attached to shaft and is not cracked or broken. (Figure 2)

If pump does not run

  1. Check fuse. Be sure electrical connections and fuse are waterproof and havent loosened. (Figure 3)

To replace motor cartridge:

  1. Hold pump housing, depress motor cartridge tab and twist cartridge counter-clockwise to remove (Figure 2).
  2. Check motor cartridge fit: See specification chart for replacement motor cartridge number. Motor must match housing color: 500 Series = RED, 800 = BLUE, 1200 = GRAY.
  3. To reinstall cartridge: Coat O-ring with vegetable oil (petroleum-based oils will cause deterioration).
  4. Insert cartridge into housing. Twist clockwise until you hear tab snap up into slot. (Figure 2)

The information provided here has been reproduced courtesy of Attwood Marine. Wholesale Marine reproduced this information 07/15/2009.