SureSeal English

8/3/2019 SureSeal English

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Tides Marine introduced its first industry standard. The system iscommercial STRONG product line comprised of three components; the

TMin 1991. Continued design SureSeal Unit, the Spare Sealrefinements and material Carrier, and the Water pick-up kit.improvements have made theSTRONG Shaft Seal System the

s y s t e m o v e r v i e w


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S u r e S e a l d e s c r i p t i o n

Committed to providing our customers with the highest quality products, TidesTMMarine for 2001 is now shipping the new style SureSeal unit as the center of its

Shaft Seal System. Developed to replace our older style UHMW STRONG Seals,these units are guaranteed for 2500 engine hours or two years (whichever comesfirst) and offer several performance enhancements including:

Housing- Made from a new fiber-reinforced composite material, the housing isstronger, smaller and more durable than its predecessor. Dimensionally unaffectedby temperature changes, the SureSeal will not absorb water.

Bearing- A new PTFE bearing offers extended product life under normal operatingconditions. If the water injection system (providing lubrication to the lip seal)

should become blocked or fail in any way, the unit can run dry for hours.Hose- Connecting the SureSeal to the boat has been made easier via an all new"articulating" hose. Matched to each housing size, the hose design positions theunit relative to the stern tube so that the required operating clearance is achievedwithout measurement (simplifying installation). This new hose greatly reduces theside loads to the SureSeal when shaft misalignment occurs (as much as 1/4" in anydirection), extending lip seal and bearing life.

Hose Clamps- The hose clamps themselves are an improved design which won'ttear or mar the hose surface, require less tightening force and adjust to thechanges in the hose diameter caused by variations in temperature and pressure.

Seal Replacement- The new design incorporates a removable front cap whichallows access to the lip seal making it easier to remove and replace, especially in"cramped quarters".


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SternTube

Water Injection Fittings

TMSTRONG SureSeal

Crossover Hose toSecond SureSeal

(If Equipped)

INSTALLATION SCHEMATIC

Articulated Hose

Hose from Water Pick-UP Point

instal lat ionoverview

TMThe following is a brief description of a typical SureSeal installation.Detailed instructions are included with each product and should be followedclosely.

Remove shaft fromtransmission coupling.

Disassemble and removeexisting shaft sealing system.1 2


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Remove the hose clamps andold hose from the shaft log(stern tube). Discard them.DO NOT RE-USE thesecomponents which will not

function correctly with theSureSeal.

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Draw the shaft back up againstthe coupling. This will exposethat portion of the shaft thatwas located under the old hose

and stuffing box.

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Insert the end of the SureSealunit into the articulated hose

and push in as far as it will go.

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Position the hose as shownnext to the stern tube todetermine approximatelywhere the lip seal will ride on

the shaft.

Examine this area carefully. Besure that it is free of pitting,nicks or surface imperfectionswhich could cause leaking.Clean this area thoroughly.Polish the shaft using 300 gritwet/dry sandpaper or emerycloth working around the shaft.Fore and aft actions could putflats or grooves in the shaft.The assembly may be shifted

forward slightly by adjustingthe position of the hose on thestern tube at the time ofinstallation.

Lip seallocation

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Carefully press the red sealprotector into the front of theSureSeal. Make certain itcovers thelip portion of theseal.8Back the shaft away from thecoupling to provide enoughroom to install the assembly.9


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Carefully slide the assembly(hose end first) onto the shaftso that the shaft passesthrough the red seal protector.

Reconnect the shaft to thecoupling. Make certain thecoupling is firmly secured tothe transmission.

Space the two hose clampsover the stern tube end evenlyand snug. Hose clamp screwsshould be on opposite sides to

distribute the pressure evenly.Space the two clamps on theSureSeal end of the hoseevenly and snug. Confirm thatboth the SureSeal and sterntube are fully inserted into thearticulating hose. Tighten hoseclamps. DO NOT OVERTIGHTEN OR RATCHET.

Pull the red seal protector fromthe SureSeal. Separate the tabsto split the cone and remove itfrom the shaft.

Slide the assembly down theshaft and onto the stern tube.Push on as far as it will go.

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Connect the STRONGTMSureSeal to a pressurized

water supply source (point in

the engine's raw water coolingsystem) by attaching the waterinjection hose to the stainlesssteel fitting on the housing. Ifthere is a second hose fitting onthe SureSeal, it is used tocomplete a crossover feedbetween the port and starboard

shaft seals. Complete crossoverinstructions are included withSTRONG Water Pick-Up Kitsand should be followed closely.

CHECK WATER SUPPLYBEFORE OPERATING VESSEL

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STRONG Spare Seal Carriers were the vessel is in the water (a haul-outdeveloped as a convenient place to may not be necessary). The unit is a

store spare lip seals and as a tool for lightweight, two-piece housingmaking the job of seal replacement which is clamped to the shaft between

TMeasier. Installed at the same time as the SureSeal and coupling. AvailableTMthe SureSeal , these units allow lip in both English and Metric sizes, the

seal replacement to be performed carriers include one spare lip seal.without uncoupling the shaft from the Certain sizes larger than 2(50mm)transmission and, if necessary, while include two spare seals.

plastic

sp a r e s e a l c a r r i e r s d e s c r i p t i o n

instal lat ion overview

TMSTRONG SureSeal

TMSpare Seal Carrier should not touch the SureSeal .Leave at least 1between the units.

Stern Tube

1"min.

Mounting Screw

STRONG Spare Seal Carrier

INSTALLATION SCHEMATIC


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Determine where the Spare

Seal Carrier will be locatedon the shaft (minimally 1"

TMfrom the SureSeal ) and becertain there are no keyways,nicks or corrosion in this areawhich could damage the lipseal.

MOUNTING THE CARRIER

Separate the two halves ofthe carrier by removing thescrews. Remove the spare lipseal(s)-two are included withcarriers used on certain largersize shafts.

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Carefully press each spare sealonto the tapered protectivecone -smooth side (with part

number imprint) first.

Slide the protector andseal(s) onto the shaft asshown- seal side first.

Remove the red sealprotector and confirm thateach spare seal is facing thesame direction as the lip seal

TMin the SureSeal unit.

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Reassemble the Spare SealCarrier housing over the lip

seal(s) and around the shaft.The long shoulder should faceTMaway from the SureSeal .6

Check to be sure the housingis at least 1 from the

TMSureSeal and tighten theassembly screws. Properlyinstalled, the Spare SealCarrier should grip the shafttightly and turn freely withit.

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SEAL REPLACEMENT

Clean shaft between Spare SealCarrier and SureSeal housing.Remove the screws and openthe Spare Seal Carrier exposingthe replacement lip seal.

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Remove the five cap screwsfrom the front of the housing.

Slide the front cap forwardpassing over the replacementseal.

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Separate the split retainingwasher and remove it from theshaft.

Pry out the old lip seal with ascrew driver workingalternately on opposite sides.Cut old seal off shaft withdiagonal pliers.

Carefully slide the new lip sealdown the shaft and into thechamfered opening in the frontof the housing.

Return the split retainingwasher to the shaft in front ofthe lip seal.

Fit the split retaining washerinto its recess inside the cap.Slide cap and washer until theytouch the lip seal. Align holesand start cap screws.

Alternately tighten cap screwsin a criss-cross pattern, drivingthe lip seal into the opening.Seal is seated properly whencap and housing touch.

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wa te r p i ck -u p k i t d e s c r i p t i o n

STRONG Water Pick-Up Kits are intended for use with STRONG Self

Aligning Shaft Seals only. They are designed to connect the STRONG Sealunit to a source of pressurized cooling water which is required for safe, long-lasting operation. A variety of types and sizes of fittings are available forinstallation.

Detailed instructions are provided with each product for proper installationand operational procedures.


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1. Tee- In line between heat exchanger and riser (as close to heat exchanger aspossible).

2. Tee- In line between oil cooler and heat exchanger.3. Tee- In line between water pump and oil cooler.4. Drain plug- Back of water pump. Be sure the drain is on the pressure side of the

pump.5. Drain plugs- In heat exchanger.6. Drain plugs- In oil cooler (if cooler is on pressure side of pump and bore is at least

.200).

Water Pick-Up Fittings

Tides Marine recommends the use of Tee Fittings installed in the engines raw watersystem to provide cooling/lubricating water to its shaft seals. When positioned asshown below, the engines raw water flows past the branch fitting in a manner whichreduces the collection of sediment and other particulate matter.

WATER PICK-UP POINTS:

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55

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1WaterPump

OilCooler

HeatExchanger

RiserNOTE: The preferredwater pick-up point would

be via a hose tee in theraw water discharge hose.Locate the tee AS CLOSETO THE ENGINEASPOSSIBLE to insureadequate head pressure.

CorrectOrientation Range


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When using Straight Water Injection Fittings, carefully select a pick-up point on the

engine, gear cooler, heat exchanger, etc. that optimizes water flow under a variety ofconditions over time. Thefollowing is a list of things to consider when selecting a pick-up point for a StraightWater Injection Fitting:

What will the pick-up point look like in three, four or five years?

Will a manifold point clog with rust or scale?

Will a heat exchanger pick-up point still provide water if the heat exchanger isnot serviced regularly?If you select a drain fitting location, will this pick-up point remain clear overtime?

Is scheduled maintenance going to be possible?

Is there sufficient water flow to lubricate stern bearings located aft of the Tides

Marine shaft seals?

Water Pick-Up Hose

Hoses should be routed from the water pick-up point to the shaft seal in a mannerwhich eliminates/minimizes the possibility of chafing, burning or kinking. Turns madeby the hose should be minimized to improve water flow. Support clips used to dressthe hose should not be so tight as to crush the hose / restrict water flow. Tidessuggests that a bit of slack be left in the hose at the shaft seal end to allow for somemovement / eliminate loading of the shaft seal on the shaft.

If you should have any questions about the water pick-up system as it relates to yourvessel, please call one of the technicians at Tides Marine.

DO NOT USE FITTINGS SMALLER THAN 1/4 NPT.

BEFORE OPERATING THE VESSEL, CHECK TO MAKE CERTAIN THAT THEPICK-UP SYSTEM DELIVERS WATER AT IDLE. WE ASSUME THAT WATERFLOW AT IDLE INCREASES WITH THROTTLE. GOOD FLOW AT IDLE ISEVEN BETTER AT SPEED.


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Add two small hose clamps toone end of the Water Pick-Uphose and attach it to either thetee or threaded fitting. Tightenthe hose clamps.

Route the hose to the waterinjection fitting on theSTRONG Seal so that it willnot be subject to kinking orpinching which could restrictthe flow of water. Cut to lengthif needed.

Take the black plastic cap offthe fitting on the STRONGSeal (leave tethered to fitting).Attach the hose and securewith the remaining two smallhose clamps.

Next, insert the Tee so that thebranch fitting is orientedproperly-not aiming straightdown (to prevent sedimentfrom accumulating at theopening) or straight up(possibly out of the waterstream) SEE PREVIOUS PAGE.

If using a threaded fitting-typepick-up, remove theappropriate plug or drain.

Using a small screwdriver orawl, poke/scrape the inside ofthe opening to dislodge and orremove any engine scale,sediment, debris, etc. whichcould clog the line. Coat thethreads of the fitting withsealant and install.

For twin-engine applications,

we recommend the use of acrossover line betweenSTRONG Seals to insureproper lubrication to both sealsin the event that only oneengine is running. For this"Double Injection" set-up, asecond fitting is required on

each STRONG Seal unit.

Route the crossover hosebetween the two seals keepingit low, below engine fitting.Remove caps and connect thetwo ends to the STRONG

Seals with the clamps as before.

If using a Tee-type pick-up, cutthe engine hose cleanly andsquarely and add two loose

hose clamps to each end.

Locate the point in the engine'scooling system where waterwill be taken. (SEE PREVIOUSPAGE).

instal lat ion overview

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When the boat is back in thewater, remove the water pick-up hose from the fitting on theSTRONG Seal and place theend into an empty container.Temporarily cap the injection

fitting (to prevent water fromback-flowing through theSTRONG Seal). Start theengine and run in neutral.Raise the container one footabove the water pick-up pointand confirm that there is waterflowing from the hose(approximately 2 PSI at engineidle). Increase engine speedand confirm that there is aconstant flow of waterthroughout the full RPM range.Reconnect the hose andtighten clamps. Dress the hoseand secure with cable ties(loosely).

CAUTION: BEFORE OPERATI NG THE VESSEL YOU

MUST TEST THE WATER SUPPLY.

To test a "Double Injection"set-up, remove the crossoverhose from one STRONGSeal. Cap the injection fitting asabove. Start the other engineand run in neutral. Hold the

end of the crossover hoseabove the level at which thecooling system water entersthe manifold. A steady flow ofwater indicates there issufficient pressure for properfunction. Reconnect the hoseand repeat process for theother engine. Dress the

crossover hose and securewith cable ties (loosely).

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Crossover Line

Riserwater level

Exhaustwater level

CAUTION: TO PREVENT BACK-FLOODING OF THE

ENGINE IN CROSSOVER INSTALLATIONS

THE WATER LEVEL IN BOTH RISERS

MUST BE HIGHER THAN THE LEVEL

OF THE EXITING EXHAUST WATER


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Tides Marine3251A SW 13th Dr.Deerfield Beach, FL

33442800. 420. 0949

SureSeal English

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