5.1.
remove both strut support brackets from the existing unit. from fig.3 remove the clips positions "e" and "G" from the two extended
location pins, positions "d" and "f" in the top support bracket and pin. support the bracket whilst removing the extended pins, slide the
bracket up and off the box section column. retain the pins and clips.
5.2.
In fig.4 the lower strut bracket is attached to the ram clevis with a pin, circlip and a clip. slacken the socket set screw "Z" from the
ram clevis. supporting the bracket and ram, slide the bracket up and off the box section column.
5.3.
the new yokes shown in fig.5 can be fitted at any stage.
As they are shown in fig.6 and fig.7, it is best explained at this stage. two
pairs of yokes are supplied, 'small' and 'large'. designed as matched pairs; hold the chosen yoke in place within each support bracket
and retain with the supplied pin "K" and clips "l".
DO NOT
assemble 'small' with 'large' yoke, fit 2 'small' or 2 'large' yokes in the same
setting. finally clamp with the socket head cap screw "J".
5.4.
the new lower strut support bracket is supplied with a fitted pin mounted clevis; arrow "A" fig.6. slide the new lower strut support
bracket over the column in direction "X" and ensure the ram rod enters the clevis full depth. tighten the socket set screw.
5.5.
slide the new upper strut support bracket in the direction of arrow "Y" in fig.7 to a required height of seven possible positions. Align
two holes in the strut to two holes in the column, slide two extended location pins "d" and "f" through and retain with the clips.
5.6.
two pairs of yokes are supplied, 'small' and 'large'. designed as matched pairs with counter bored bosses for
assembly to the stub shaft (spigot) of the strut support brackets, see fig.3. retain with the supplied pin and clips.
DO NOT
assemble
'small' with 'large' yoke, fit 2 'small' or 2 'large' in the same setting.
5.7.
safety chain fitting is covered in the "oPerAtIon" section.
5. ASSEMbLY
fig.5
fig.3
fig.4
fig.6
fig.7
6. OPERATION
6.1.
Measure the outer diameter of the spring to be compressed and select the correct set of yokes. fit the yokes as described in section 5.3.
6.2.
operate the release valve pedal in fig.8 and press down on the lower strut support until the piston is full retracted.
6.3.
the upper yoke should bear down on the first full coil down from the top of the strut. the lower yoke should be pushing up on the first full
coil up from the bottom of the strut. Measure the distance between these coils and adjust the position of the upper strut support so that the
distance between the yokes is slightly larger than required. ensure that the pins fixing the upper support are fully inserted and retained with
the spring clips provided. use the foot pedal to raise the lower yoke/strut support to finely adjust the distance between the yokes.
6.4.
Before commencing compression, make a visual inspection of machine to ensure pins are securely positioned and that there is no sign of
wear or fatigue; if found,
DO NOT
use the unit and refer to your local sealey dealer for advice and replacement parts.
6.5.
Insert the strut into the yokes and ensure that the lower coil used lies behind the retaining rim at the back of the yokes. operate the foot
pedal to raise the upper coil into contact with the upper yoke ensuring once again that the coil is retained by the raised rim within the yoke
6.6.
Wrap one safety chain around the portion of the spring and strut protruding from the upper yoke ensuring that the chain lies above the
yoke. Wrap the other chain around the spring and strut protruding from the lower yoke ensuring that the chain lies below the yoke.
fasten each chain behind the main pillar using the sprung catches attached. Make sure each chain is as tight as possible.
DO NOT
position the chain between the coils held between the yokes.
6.7.
When applying compression to the spring, always stand to one side of the unit.
6.8.
Gradually compress the spring by pumping the foot pedal ensuring that the spring and strut remain securely held at all times. ensure
that the strut and the body of the compressor are correctly aligned at all times during spring compression. for conical springs, the
centre line of the spring should remain parallel to the compressor body.
DANGER!
stop compressing the spring before the coil windings touch. You need only compress the spring until the strut top plate is
free from the spring.
6.9.
Before attempting to remove top cap nut, always use a tool or short stick to test if the spring compression has been relieved from the
top plate.
DO NOT
use your hands / fingers. sealey recommends the use of purpose made strut tools to remove the top-nut from the
shock piston. ensure that the shock absorber is supported as the top nut is undone to prevent it falling down through the coils and
causing injury.
Original Language Version
© Jack sealey limited
re230uK Issue: 2(sP) - 04/09/14
