Attwood Stainless Steel Straight Thru-Hulls Threaded - Manual

Attwood
A Steelcase Company 1016 N. Monroe Street, Lowell, MI 49331-0260
© 2003
3
®
Threaded Thru-Hulls
and Scupper Valve
Installation Instructions
66558 - 66567 Series
SAVE THESE INSTRUCTIONS
Form Number 69398 Rev A
03-07
These stainless steel products carry a Limited Lifetime warranty.
WARNING:
Read instructions carefully before installing and using this product. To
prevent injury, remove boat from water when installing this product and
before using 120V power tools.
The stainless steel thru-hull and scupper valve must be mounted above
the boat’s maximum water line as determined by the boat’s draft at the
maximum loading recommended by the boat manufacturer. On sailboats,
mount high enough on the center of the transom so fitting is above water
line at all times.
FEATURES
The stainless steel thru-hull and scupper valve have threaded ends. A
seacock or in-line valve can be threaded directly onto these fittings. See
chart below to match thread size.
REQUIRED FOR INSTALLATION
• Expandable wrench (max. 2-1/2", 64mm)
• Hole saw (see chart for size)
• Cordless drill
• Polyurethane marine sealant
Thru-Hull Thread Thread Hole Saw
Part Number Size (NPSM) Length Size
66558 1/2" 2-1/8" 7/8"
66559 3/4" 2-1/8" 1-1/8"
66561 1" 2-1/4" 1-3/8"
66562 1-1/4" 2-1/2" 1-3/4"
66563 1-1/2" 2-3/8" 2"
66564 2" 2-1/2" 2-1/2"
Scupper Valve
Part Number
66565 1-1/2" 3-1/2" 2"
66567 2" 2-1/2" 2-1/2"
THRU-HULL INSTALLATION
Mount thru-hull in the transom or side of hull, at least 12" (30cm) above
maximum water line. If possible, place fitting on the same side as the
steering wheel so driver can see discharge of water when the pump is
working properly.
1. Use a hole saw (see chart for size – check against thru-hull) to cut
hole in the transom or hull. (Figure 1)
2. Remove tightening nut. Apply a small bead of marine sealant in the
groove under the flange.
3. Place thru-hull into the hole. After this point, all connections may be
made from inside the hull.
4. Place tightening nut onto threads, with wide side toward hull. Tighten
firmly, but do not damage gelcoat by over-tightening. To prevent
turning, grip wrench flats with an expandable wrench.
5. Turn seacock onto the thru-hull threads. Grip the wrench flats to hold
thru-hull in place.
6. Lead hose from bilge pump to seacock at an upward angle. Fasten
tightly at both ends with hose clamps.
SCUPPER VALVE INSTALLATION
The Attwood threaded scupper valve is designed for boats with a
self-bailing cockpit. The flapper valve opens outward to release water
and automatically closes to help prevent backwash from entering the
cockpit. Mount scupper in the transom at least 12" (30cm) above
maximum water line.
1. Use a hole saw (see chart in left column for size – check against
scupper) to cut hole in the transom or hull. (See Figure 2.)
2. Remove tightening nut. Apply a small bead of marine sealant in the
groove under the flange.
3. Place scupper into the hole. After this point, all connections may be
made from inside the hull.
4. Place tightening nut onto threads, with wide side toward hull. Tighten
firmly, but do not damage gelcoat by over-tightening. To prevent
turning, grip wrench flats with an expandable wrench.
5. Turn seacock onto the scupper valve threads. Grip the wrench flats
to hold scupper in place.
6. Lead hose from cockpit to seacock at a downward angle. Fasten
tightly at both ends with hose clamps.
Figure 1
Figure 2
Cockpit
Cockpit Drain (#3882-1)
Scupper Valve
At Least 12" Above
Maximum Water Line
Marine Sealant
Seacock
Wrench Flats
Hose
Clamps
Hose
ATTWOOD LIMITED LIFETIME WARRANTY
ATTWOOD CORPORATION, 1016 North Monroe, Lowell, Michigan 49331
(“Attwood”) warrants to the original consumer purchaser that, under normal use
and service, this Attwood brand product will be free from defects in materials and
workmanship for the service life of the vessel on which it is originally installed.
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 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.
Hose
Clamps
Marine Sealant
Seacock
Thru-Hull
Wrench
Flats
Hose at Upward Angle
At Least 12" Above
Maximum Water Line