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Latest products and information available at www.sealite.com

4

SLB750 Marker Buoy

Introduction

Congratulations! By choosing to purchase a Sealite Buoy, you have become the 

owner of one of the most advanced rotationally-moulded polyethylene marine buoys 

in the world.

Sealite Pty Ltd has been manufacturing buoys for over 25 years, and particular care has been taken to 

ensure your buoy gives years of service.
As a commitment to producing the highest quality products for our customers, Sealite has been 

independently certified as complying with the requirements of ISO9001:2008 quality management 

system.
By taking a few moments to browse through this booklet, you will become familiar with the versatility of 

your buoy, and be able to maximise its operating function.

Sealite Buoy Division

Sealite marine buoys are manufactured on-site from rotationally-moulded UV-stabilised polyethylene, 

and are designed to offer a low-maintenance, high visibility solution to marine navigation. 
The Sealite buoy division provides turn-key production of navigation buoys. From tooling development, 

raw materials selection, and production, to final testing and inspection, Sealite guarantees superior 

quality and fast turn-around times. 
Sealite’s buoy products are available in a wide range of configurations and sizes, and can be 

economically shipped worldwide.

Why Choose Polyethylene Buoys?

•  No painting 
•  Inhibits growth
•  Increased interval between servicing
•  Routine maintenance on location 
•  Easily repaired in the unlikely event of damage 
•  Lightweight for ease of deployment and maintenance 
•  Environmentally friendly – no use of toxic antifouling paint

4. 

Mooring Requirements & Regulations

Please contact your local authority for any specific requirements regarding the deployment of buoys. 
IALA also has guidelines and recommendations that should be followed. 
All information given in this manual is advisory only. Please consult with your local authority before 

deploying your buoy products.
Local conditions that need to be considered include:-
•  Water depth
•  Maximum currents
•  Maximum wind speeds
•  Sinker size and weight

Summary of Contents for SLB750

Page 1: ...Version 3 1 SLB750 Marker Buoy Suited to Fast Water Installation Service Manual ...

Page 2: ...nnects mooring and lifting eyes Multiple mooring eyes to suit various water speeds and depths Stainless steel keel Product Features Technical Specifications 4 x Ø 48 5 42mm Wide Mooring Eyes 3 x Ø 24 5 Counterweight holes 6 x Ø 9 5 Rotationally moulded to 6mm wall thickness Optional top marks available SLB750 CONE SLB750 CAN ...

Page 3: ... Buoy Maintenance Page 10 Sealite Buoy Warranty Page 11 Version No Description Date Approved 1 0 Manual Launch November 2009 A Dixon 2 0 Update February 2010 K Paton 3 0 Update Spec Table May 2012 J Dore 3 1 Removed spec back page and warranty statement December 2018 Seamoor Sealite Mooring Calculator As a service to valued customers Sealite has developed an advanced mooring calculator based in IA...

Page 4: ...ility solution to marine navigation The Sealite buoy division provides turn key production of navigation buoys From tooling development raw materials selection and production to final testing and inspection Sealite guarantees superior quality and fast turn around times Sealite s buoy products are available in a wide range of configurations and sizes and can be economically shipped worldwide Why Ch...

Page 5: ...Buoy The Sealite SLB750 is a large 750mm dia marker buoy designed for a variety of applications and is particularly suited to fast water currents of up to 6 knots The unique one piece float section has an internally integrated bow and keel which ensures the buoy remains stable during fast currents ...

Page 6: ...ts No Description Qty 1 SLB750 Float with bracing ballast fill 1 2 SLB750 Keel 1 3 SS Bolt Ø10 x 65 3 4 SS Penny Washer Ø10 x 31 OD 6 5 SS Spring Washer Ø10 3 6 SS Plain Nut Ø10 3 7 SLB750 Cone 1 8 SLB750 Can 1 9 SS Socket Head Cap Screw Ø8 x 40 4 10 SS Spring Washer Ø10 4 11 SS Penny Washer Ø10 x 31 OD 4 ...

Page 7: ...endent on the local conditions A counterweight may consist of 3 8 links of chain secured to the keel with a shackle Fitting Top Section Cans or Cone Position the buoy so the keel is on the ground and the top surface is facing up Position the Can or Cone on the top of the buoy so the handle is aligned with the Lifting Eye Secure the Can or Cone using 4 x M8 40mm Long Socket Head Cap Screws and 4 x ...

Page 8: ...r forward on the buoy When the current is flowing the buoy is leaning into the current rather than riding on the current Try the following suggestions Move the mooring chain further back along the mooring eyes in the base Move the counter weight further back along the bottom of the keel Add more weight to the counterweight on the keel If the buoy is riding aft Sealite would recommend the following...

Page 9: ...water with a light sitting horizontal The chain is correctly sized the buoy is not being dragged under the water or bobbing excessively The counterweight on the keel is working correctly being positioned correctly for the prevailing conditions The sinker is weighted correctly to keep the buoy correctly positioned during all tidal currents ...

Page 10: ... tail and ride chains from shells and algae Check for wear on any shackle axis and check the tapered pins Any worn shackles must be replaced Check the free movement of each swivel around its head If any swivel head sticks it must be replaced Check every link of the thrash length of the chain Check the diameter of the nips and sides and also inspect the welds on every link If depth allows a worn ri...

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