Harken TTR AirBlock - Manual (Page 3)

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 frequent 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.
Flush blocks thoroughly with fresh water. Periodically, disassemble the blocks and
clean with detergent and fresh water.
Mylar
® washers should always be used between stainless fasteners and aluminum
sideplates. Stainless fasteners which pass through aluminum blocks should be coated
with an antiseize compound. .
Important: Exposure to some teak cleaners and other caustic solutions can result
in discoloration of part and is not covered under the Harken warranty.
Inspect Parts Every Time you Sail
Inspect lashing at head of
block to make sure knot is
holding tightly.
For additional safety, maintenance and warranty information see www.harken.com or
the Harken ® catalog.
WARNING: Parts must be inspected each time you sail. If parts
are under load during long passages it is important to inspect
them carefully while in use.Failure to inspect and correct block
and loop or lashing may result in block breaking under load caus-
ing an accident, damage to your vessel, personal injury or death.
INCORRECT
Inspect loops and lashings. Replace if there are signs of wear or if the col-
ored tracer fades from UV damage.Pull loop out of mouth and inspect loop/
lashing carefully for any signs of wear, UV-damage, fatigue or strand
separation. Replace loop if it shows signs of UV-damage or wear.
WARNING: Replace all loops and lashings every year or if there is
any sign of wear, UV-damage, fatigue or strand separation. If in
doubt replace. Consult chart to match strength of loop/lashing to
block and load. Failure to replace damaged or weakened parts can
cause part to break under load causing an accident, damage to your
vessel, personal injury or death.
INCORRECT INCORRECT
Remove screws from cheek. Be
careful not to lose small mylar
washers (isolators) under screw
heads.
Remove roller/cage
assembly. Clean
using solvent.
Lightly grease inner
ring of sheave as
shown at right.
Do not grease
rollers.
Assemble block
using mylar washers
(isolators) and blue
Loctite ® on screws.
Mylar Washer
(Isolator)
Maintenance
Warranty
Flush parts frequently with
detergent and fresh water.