PLASTIMO 406-T Twin Groove Jib Reefing System Owner’s Manual
- June 1, 2024
- PLASTIMO
Table of Contents
PLASTIMO 406-T Twin Groove Jib Reefing System
Product Usage Instructions
- Model Numbers: 406-T, 609-T, 811-T
- Country of Origin: France
- Manufacturer: Plastimo
- Drum Unit: 1
- Halyard Swivel: 1
Assembling the Drum Unit
- Identify all components listed in the manual.
- Attach the drum unit according to the provided instructions.
Attaching the Halyard Swivel
- Connect the halyard swivel to the designated point on the sail or mast.
- Ensure a secure connection to prevent any slippage during operation.
Frequently Asked Questions (FAQ)
Q: How do I maintain the jib reefing system?
A: Regularly inspect all components for wear and tear, lubricate moving parts,
and store the system in a dry place when not in use.
OWNER’S MANUAL
TOOLS NEEDED
Tools needed :
-
Hammer
-
Pliers
-
Comfortable bosun’s chair (Plastimo).
-
Allen key (4)
-
Electric or hand drill
1 Ø4.2 mm drill -
Hacksaw
-
Tape measure
-
Screwdriver
-
Silicone filler.
FLAT ASSEMBLY
- This method consists of fully dismantling the forestay and assembling the jib reefing system while the forestay is lying flat.
- We recommend this method as it is faster.
- In certain cases the top part of the forestay cannot be dismantled, in this case::
Dismanting the forestay
Lower part
- Slacken the backstay
- Secure the mast forward with 1 or 2 halyards
- Tigthen the halyards to relieve the strain on the forestay
- Dismantle the lower part of the forestay (this usually consists of removing a ] removing a rigging screw pin, or a screw and a nut).
Note : it is important to measure the distance between the forestay eye and the hole of the forward mounting plate in order to find the correct adjustments] again. For a turnbuckle assembly, measure the distance between the mounting plate and the blocking nut of the turnbuckle.
Upper part
- Send a person to the masthead (equipped with hammer and pliers)
- Dismount the upper part of the forestay
- Bring the person and the forestay down from the masthead
ASSEMBLING THE JIB REEFING SYSTEM
-
Lay the forestay flat
-
Place the parts to be assembled alongside the forestay
-
Assemble the drum unit on the forestay and put the rigging screw pin or screw and nut in place (select the chainplate hole that corresponds to the initial forestay adjustment).
-
Slide the base spar onto the forestay
-
Slide a coupling sleeve and connecting stop onto the forestay (ensure that the hole in the coupling sleeve is in line with the pre-drilled hole of the base spar)
-
Slide the base spar into the drum unit until the two holes are in line, insert the M5x12 screw (after putting some silicone filler in the hole in order to reduce the stainless steel / aluminium electrolytic couple) and tighten.
-
Put another coupling unit (sleeve and stop) into position
-
Insert a screw (Ø3.9×12.7); do not forget to put some silicone filler into the hole beforehand
-
Put another aluminium spar into position
Repeat the process until only one spar is left
Positioning the last spar
- Position the last spar so that it lies flush against the previous spar but do not install it
- Measure a distance of 5 cm back from the sleeve of the forestay
- Mark and cut the spar with a hacksaw
- Put a coupling unit into position (sleeve and stop)
Installing the top end stop
-
Slot the top end stop over the aluminum spar
-
Drill a hole (with a Ø4.2 mm drill)
-
Before putting the screw into position, do not forget to slide the halyard swivel into place (ensure that the conical end of the halyard swivel faces downwards)
-
Insert a coupling unit (sleeve and stop)
-
Put the top end stop back into position
-
Put some silicone filler into the hole
Insert and tighten screw (Ø4.8×12.7)
-
Your jib reefing system is now assembled and can be put into position (hoist it up to the masthead with a halyard)
IN SITU ASSEMBLY
- this method of assembly may be carried out by one person
- it is not necessary to dismantle anything at the masthead
MEASURING THE LENGTH OF THE FORESTAY
In order for this jib reefing system to be perfectly adapted to your boat the
length « X » needs to be known.
- Slide a small shackle around the forestay
- Ensure that it lies flush against the sleeve
- Slacken the backstay
- Secure the mast with a halyard
- Dismount the lower part of the forestay
- Assemble the drum unit
- Reassemble the lower part of the forestay
- Undo the halyard and tighten the backstay
- Attach a halyard to the shackle
- Attach a length of rope (or a tape measure) to the shackle
- Hoist the shackle until it touches the top sleeve of the forestay
CUTTING THE LAST SPAR
- Stretch out flat the piece of rope used to measure the length of the forestay
- Lay the aluminium spars parallel to the piece of rope (take note of base spar, see page 7)
- Mark the spar level with the mark on the piece of rope
- Cut the spar 3 cm (safety margin) below the mark
ASSEMBLING THE TOP END STOP
- The top end stop should be assembled on the aluminium spar that has just been cut.
- Slide the top end stop fully over the end of the spar (IMPORTANT: refer to diagram below for positioning of the hole in the top end stop)
ASSEMBLING THE SPARS
- Dismount the forestay from the stemhead fitting
- Install the following on the forestay:
Top end stop
The spar that you have cut and drilled
Coupling unit (sleeve and stop); ensure that the hole in the coupling unit is
in line with the hole in the spar a Ø4.8×12.7 screw
Halyard swivel (IMPORTANT: see drawing below for position of halyard swivel)
- Attach a halyard to the halyard swivel in order to support the spars as they are assembled
- Insert a coupling unit (sleeve and stop)
- Put some silicone filler into the holes before tightening the screws (in order to reduce the electrolytic couple between the stainless steel screw and the aluminium)
- Insert a screw (Ø3.9×12.7)
- Wipe away any excess silicone with a cloth
- Slide another aluminium spar into position
IMPORTANT: keep the base spar to one side; you will be assembling it last)
- Repeat the process as many times as necessary
- To put the base spar into position, it is first advisable to loop a piece of rope through the eye of the forestay in order for the spar to be able to slide easily around it and for the forestay then to be retrieved.
ASSEMBLING THE BASE SPAR
- IMPORTANT: ensure the base spar is facing the right way (see diagram below)
ASSEMBLING THE DRUM UNIT
-
Position the sleeve or turnbuckle on the drum (depending on model)
-
Insert coupling unit from the bottom end of the spar (ensure the hole in the coupling unit is in line with the pre-drilled hole on the end of the base spar)
Insert the base spar into the drum unit -
Put some silicone filler in the pre-drilled hole
-
Insert the M5x12 screw
-
Attach the jib reefing system to the forward mounting plate
-
Lower the halyard swivel
-
Tighten the backstay
ADJUSTING THE REEFING LINE FEEDERS
5.7.1 – 406-T model
- The reefing line feeder on the 406-T model is assembled either on the right or left hand side of the drum unit, depending on which direction you prefer to reef.
- The angle is adjusted by loosening the two screws that hold the chainplate.
– 609-T & 811-T models
- The angle of reefing line feeders on 609-T & 811-T models is adjusted by loosening the two nuts and bolts (see diagram below)
Recommendations
A Reefing line feeders
The angle of all the reefing line feeders may be adjusted.
A Reefing line
The reefing line is wound around the drum. Only use pre-stretched rope in
order to eliminate any elasticity
Refer to diagram below for the position of the reefing line as it comes out of
the drum
-
A Reefing direction of the genoa
The genoa should be reefed in the same direction as the strands turn on the forestay. -
A When you are not sailing Slacken the backstay in order to reduce undue strain on mechanical parts
-
A About the drum
When your genoa is fully reefed and in order to avoid direct strain on mechanical parts and on the knot of the reefing line, there should be a minimum length of one halyard turn on the drum. -
A Halyard/forestay angle This angle should never be more than 20-25 °as this makes it impossible to tauten
and reef the sail. What is more, this undue strain on the forestay could cause it to -
A When sailing
Ensure that the forestay is always taut. Not only will this make reefing easier but will avoid any danger of the forestay unravelling.
(We recommend putting a universal joint at the masthead) -
A Hauling on the genoa
The reefing line should never be used to haul on the sail. -
A Unfurling the genoa
When unfurling the genoa, ensure that it does not unfurl too quickly by winding the reefing line once round a winch and feeding it out slowly in one hand and the genoa sheet in the
OPTIONAL EXTRAS
HALYARD DIVERTERS
When the genoa is furled or unfurled, if the angle between the halyard and the
forestay is too tight, the halyard risks
being twisted round as the halyard swivel turns.
options are available to solve this problem:
Halyard diverter wheel
To install the diverter wheel, it is necessary to dismantle the forestay
Halyard feeder
To install the halyard feeder, it is not necessary to dismantle the forestay 2
sizes are available:
- ref 25677 : 609 et 811 models
- ref 26140 : 406 model
Spare parts
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References
Read User Manual Online (PDF format)
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