INSTALLATION SHEET
437 16mm Flip-Flop Block
N15W24983 Bluemound Rd, Pewaukee, WI 53072-4974 U.S.A.
Telephone: (262) 691-3320 • Fax: (262) 701-5780
Web: www.harken.com • E-mail: harken@harken.com
Maximum Working Load: 250 lb (113 kg)
Breaking Load: 1200 lb (544 kg)
Fasteners: #8 (4 mm) RH
Fastener Size Drill Ø Tap
#8 Tapped hole
#8 Through-bolted
5
/32" Rivet
M4 Tapped hole 3.25 mm 4 mm
M4 Through-bolted 4.25 mm
See drawing at right for
correct carrier orientation
and clevis pin installation
1
/8" #8
11
/64"
5
/32"
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Maintenance
Harken equipment requires minimal maintenance,
but some is required to give the best service and to
comply with Harken's limited warranty.
It is important to keep equipment clean by frequently
flushing with fresh water. In corrosive atmospheres,
stainless parts may show discoloration around holes,
rivets and screws. This is not serious and may be
removed with a fine abrasive.
With the exception of winches, do not use grease
unless specifically recommended in the instruction
sheets.
Important! Exposure to some teak cleaners and
other caustic solutions can result in discoloration of
part and is not covered under the Harken warranty.
Warranty
See the Harken catalog or www.harken.com/manuals
for additional maintenance and warranty information.
Printed in USA 4852 09-13