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The rails are very robust and in most cases it's just a matter
of pulling them out and given a bit of a clean and light grease.
Start by undoing the four nuts under the car that hold the seat
and rails to the car. Hint: a quick scrape with the wire
brush and a spray of CRC will make life a little easier. The seat
will now be loose but there still could be the helper springs
attached so the seat may not come out just yet.
The two helper springs are attached to the floor and the Upper
Carriage See Fig 1.under the seat on either side and are
used for helping to move the seat forward. Quite often these
springs are missing.
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| Once the seat is out detach the rails
from the seat by undoing the crosshead bolts from each end of the
Upper Carriage. |
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Fig 2. Remove the floor fixing bolt
closest to the roller bed with double captive indents.
The other end has a single captive indent and can be seen Fig
7.
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Dismantling the rails requires the removal of the front, floor
retaining-bolt. As this bolt is captive to the Lower Carriage
it is necessary to place something on the end of the bolt to protect
the thread before driving it out with a hammer. The front bolt
can also be determined by looking at the Roller Bed, the front
has a captive indent at each end of the Roller Bed See Figs
2 & 3. the rear only has a single indent. See Fig 7.
Once the front bolt is removed See Fig 2. the Upper Carriage
can be withdrawn from the Lower Carriage by pulling it away from
the bolt that was removed. If the unit is badly seized it may
be necessary to apply some force in that direction.
Check all parts for wear and clean thoroughly paying particular
attention the areas of the Upper Carriage where the Nylon Sliders
run. See Fig 4.
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Fig 3. The other side of the double
captive indents in the Upper Carriage with a Roller in place.
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Hint: Roll a tight small tube of emery paper and rub it
along the inner edges of the Upper Carriage where the Sliders
run. See Fig 4.
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When all the parts are clean and pained if required, smear some
light grease onto the area where the Nylon Slides travel in the
Upper Carriage plus the Rollers and the Roller Beds.
Reassemble by first placing the four Nylon Sliders in the spigots
slots in the Lower Carriage making sure they are the correct way
around, the spigot is not central on the slider. See Figs 5
& 6.
This is best done with the Lower Carriage upside-down and using
some grease as glue to hold the Sliders to the side of the rail.
Fig 5.
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| Then, holding the Upper Carriage upside-down in the
palm of your hand with a slight incline and the double indents furthest
away from you, place a roller between the indents Fig 3.
and then side the Lower Carriage up into the Upper, the end with
the bolt removed in first. |
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Fig 4. Make sure these edges of the Upper Carriage
are cleaned well for the Nylon Sliders to run smoothly.
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When the second pair of Nylon Slider have just entered the Upper
Carriage turn the unit over so it's right side up and drop in
the second roller. Push the Lower Carriage all the way in so the
bolthole is exposed at the other end of the unit and replace the
bolt.
Use a centre punch the swell the area around the base of the
bolt to make it captive once again. Fit the units back to the
seat but before fitting the seat back to the car make sure the
extension wire from the driver's seat latch operates the passenger
side latch, adjust the bottle screw in the middle of the extension
wire if necessary.
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Then fit the seat back to the car and replace the helper springs.
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Fig 5. Two veiws of the same section of Lower Carriage
showing the Nylon Sliders and their locating spigot slots either
side of the Roller.
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Fig 6. Note the Slider locating spigot
is not central on the slider.
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Fig 7. The under side of the Upper
Carriage at the single indent Roller Bed and the Helper Spring
Anchor point.
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