Installing Expanding Adaptors Fallshaw Banner

See also
Fitting Instructions
Expanding Adaptors and the Price List for more info.
Pintle, adaptor, fork side elevation

When you purchase your castors from Fallshaw, the adaptor set is already assembled to the castor.
If you are assembling yourself...
• remove the wheel
• insert the bolt up through the castor bolt hole. A bolt with 13mm Across Flats (A/F) hex is provided with castors
• insert the cone into the tapered end of the sleeve, making sure fins on the cone lock into the downward opening slots
• place the cone/sleeve on the bolt and screw down until the base of the sleeve just touches the centre bolt hole rivet on the castor
• you can replace the wheel now, or after the castor is attached to the trolley

Due to the greater offset, expanding adaptors are not recommended for use on 175 or 200mm castors. If you do use expanding adaptors on these larger sizes be sure to fit a bolt 18mm A/F hex (and branded M8.8).

Mounting axis
must be vertical

Max unsupported leg 125mm
If a weld bead is present inside the tube, align one of the slots in the adaptor sleeve with the bead. Try the fit of the cone/sleeve with the bead, it should be a neat sliding fit. If not screw the cone/sleeve down a little and try again. Repeat this process until it is a neat fit.
NOTE: The cone is not shown for clarity.
Adaptor aligning with weld bead
Spanner on hex of bolt Insert the adaptor fully onto the tube.
Line up the notches of the expanding fitting with the slots on the castor rivet.
Put slight sideways pressure on the castor to help the fittings grip, then tighten the pintle up firmly to '3 finger tightness' i.e. the amount of torque you can get onto a standard spanner using your 3 middle fingers (25-30N/m). On round tubing some bellowing between 0.5 to 1.0mm will occur, while on square tubing the bellowing is 1.0 to 1.5mm,
and can be used as an indication as to whether you have achieved the correct amount of torque. (NOTE: if you over tighten this may split the tube (dangerous!), and may distort the fittings making them difficult to reuse. However, if you under tighten the fittings they will not grip the tube sufficiently and the castor may drop out (also dangerous!)).
Use the right amount of torque - 3 finger tightness, and use the sign of bellowing as a guide.
If you haven't already done so, you can now assemble the wheel to the castor.
Maintenance
• You should retighten the adaptors after 3 months of use, and then every 12 months after that - remember the 3 finger rule, i.e. the amount of torque you can get onto a standard spanner using your 3 middle fingers (25-30N/m).
• To remove the castor - loosen the bolt, and then tap the head - this will drive the cone up out of the sleeve, and then the castor can be easily removed from the tube.
• A small amount of crushing of the cone is normal and proper (it prevents the bolt unscrewing unintentionally). The cone can be reused if not damaged. If damaged by excessive tightening the cone should be replaced. If the sleeve has been damaged, it also must be replaced.
Warped trolley compensation Warped trolleys
You can compensate for a warped trolley by adding up to 8mm in washers, or by using a similar piece of tubing to that of the trolley.