V-Trak Backrest, User Manual

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Installing Universal Mounting Blocks, MB-R-UE & MB-R-US
Instructions:
1. Remove the canvas backrest from the wheelchair according to the manufacturer’s recommended
procedures.
2. Remove the Mounting Blocks from their packing and dismantle
3. Install as for standard mounting blocks but using additional Clamp Bands and/or spacers where
necessary as indicated below.
In most cases the pre-assembled mounting block will be suitable. Occasionally it may be necessary to use the
additional Clamp Bands with, or without, the Spacer Shells, to suit different diameter uprights.
Note: The Mounting Blocks are usually installed to the rear of the canes (Figure 5) but may also be
mounted in front (Figure 6) of the uprights. In either case, always ensure the Clamping Screws are on
the outside and therefore accessible for final adjustment and tightening.
Observe the correct position for any spacers
which must not be in contact with the tightening
wedges.
Contents: MB-R-UE - configured for Europe
2 x Clamp Bands for 22mm (7/8”) diameter wheelchair
uprights
2 x Pin blocks
2 x Plain wedges
2 x Threaded wedges
4 x Clamping Screws
2 x 25mm (1”) diameter Clamp Band for 25mm (1”)
diameter wheelchair uprights
2 x Spacer Shell – use with 25mm (1”) Clamp Band
on 3/4” (19/20mm) diameter uprights
Contents: MB-R-US – configured for USA
2 x Clamp Bands for 25mm (1”) diameter
wheelchair uprights
2 x Pin blocks
2 x Plain wedges
2 x Threaded wedges
4 x Clamping Screws
2 x Thick Spacer Shells – use with 25mm (1”)
Clamp Band on 3/4” (19/20mm) diameter
uprights
2 x Thin Spacer Shells – use with 25mm (1”)
Clamp Band on 7/8” (22mm) diameter
uprights
Figure 7
Screws accessible
Screws accessible
Figure 5
Figure 6