1. Manuals
  2. Brands
  3. V-Trak Manuals
  4. Wheelchair
  5. Backrest
  6. User manual

V-Trak Backrest User Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual

Advertisement

Table of Contents
loading

Summary of Contents for V-Trak Backrest

  • Page 2: Table Of Contents

    User manual, installation and adjustment instructions for V-Trak Backrest Systems Contents: Safety & maintenance Page Safety and transportation Overview Removal and replacement Warranty Maintenance and cleaning Installation Installing Mounting Blocks Assembling the Central Mount and Arms Installing the Central Mounting Assembly...

  • Page 3: Safety And Transportation

    Refer to pages 24-25 7. The V-Trak system has been Crash Tested to the ANSI RESNA standards for Wheelchairs Ref: WC19 and WC20 and is suitable for use as Seating in Transportation. When used as seating in transportation, an adequate head support should be used for such journeys.

  • Page 4: Overview

     Each mounting block is connected, through a Locking Lever, to a horizontal Arm.  The arms are joined by a Central Mount which is secured to the Backrest track.  Backrests are available in a wide range of sizes and configurations and are compatible with an extensive range of V-Trak accessories and with third-party accessories.

  • Page 5: Removal And Replacement

    Removing the Backrest  Raise the Locking Lever at the end of each V-Trak Arm past the fully vertical position, to the Unlocked position as shown in the diagram.

  • Page 6: Warranty

    3. All locking nuts are properly tightened without loosening the main screw 4. That the removal and replacement of the Backrest is smooth and easy to operate It is important to check the above items periodically. The interval between inspections should reflect the nature and frequency of use.
  • Page 7 Figure 3A.Typically this will be approximately 60% of the distance from the bottom to the top of the backrest track. Each case will be different according to the client’s body mass and likely behaviour. Every effort should be made to balance the likely rotational forces above and below the pivot point.

  • Page 8: Installing Mounting Blocks

    Clamp Band on 7/8” (22mm) diameter uprights 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.
  • Page 9 3. Install as for standard mounting blocks but for NETTI Mini mount the blocks in a parallel configuration to the front or rear of the uprights as shown in Figures 8 & 9 4. If V-Trak Thoracic Supports are to be fitted in the NETTI Mini, the forward position will normally be required.

  • Page 10: Assembling The Central Mount And Arms

    Assembling the Central Mount/Arms 1. When supplied as separate items these components will require assembling before mounting onto the wheelchair. If they have been supplied as an assembled item proceed as shown on Page 11 – Installing the Central Mounting Assembly Assembly instructions: 2.

  • Page 11: Installing The Central Mounting Assembly

    1. Remove the Mounting Blocks from their packing and dismantle 2. Install one Mounting Block at the optimum height for the backrest. Ensure that the screw holes are to the outside of the wheelchair and accessible for final positioning. Do not over- tighten at this stage.

  • Page 12: Assembling Backrest Segments

    1.To join segments together, use the special hinge (SH SD) provided. The hinge screws are long enough to locate in the safety locking holes in the backrest track and must be unscrewed sufficiently to allow assembly. See Figure 2.Tighten both hinge screws keeping the hinge elements in a straight line at first.

  • Page 13: Installing The Backrest

    Installing the backrest Remove the protective End Caps from the Track. Insert the track sliders into the bottom of the backrest track. Move the Central Mounting Assembly along the track to the guide position just above the halfway point of the track. Secure in position by tightening the Height Setting Screws.

  • Page 14: Adjusting The Backrest Shape - Comfort

    Lumbar Kyphosis and posterior pelvic tilt these same straps can be slackened. To adjust the straps: From the rear of the backrest, open up the Right Hand side of the backrest cover. 1. To release the tension in a strap, pull the ring...

  • Page 15: Adjusting The Backrest Shape - V-Trak Range

    Adjusting the backrest shape – V-Trak ranges The adjustment zones: Each Axxis backrest has five adjustment zones. The Central zone (1) in Figure 25 extends from the top to the bottom and controls the vertical profile of the backrest. Variations in profile as shown in Figure 24 are achieved by adjusting the tension of the four internal horizontal straps.
  • Page 16 4mm key wrench Notes: 1. All one piece backrests have four internal straps and four adjustable wings. Each backrest segment has two straps and two adjustable wings. 2. Width adjustments have a fixed range. Movement beyond this range is prevented by mechanical stops.

  • Page 17: Adjusting The Backrest Shape - V-Trak Segmented Backrests

    Figure 29 Use the hinged segments to suit a wide range of spine profiles. Use the unique V-Trak hardware to allow separate positioning of upper and lower segments for complex requirements such as severe Scoliosis or Hyper-Lordosis. Figure 30...

  • Page 18: V-Trak Lite Hardware

    7. Replace the protective End Cap. Adjustments: Backrest Height: For fine adjustment of the backrest height, slacken the two Centre Clamp Fixing Screws – 5. Move the backrest up or down to the desired position – 6, and re-tighten the Fixing Screws.
  • Page 19 V-Trak Lite Hardware installation Backrest Angle (pitch): Slacken the two Centre Clamp Fixing Screws –7. Angle the backrest forwards or backwards to the desired position – 8 and re-tighten both Fixing Screws. Seat Depth: - 11 1. Raise both Locking Levers to the open position 2.

  • Page 20: V-Trak Lite Hardware

    V-Trak Lite Hardware installation Adjusting for different wheelchair widths: 1. Proceed as for Seat Depth adjustment but rotate the Mounting Blocks equally to achieve the desired width. 2. Secure in position by tightening all fixingscrews and closing the Locking Levers. See 14, 15, 16.

  • Page 21: Height

    For fine adjustment of the backrest height, slacken the two Height Setting Screws “A” in Figure 31. Move the backrest up or down to the new position and re-tighten the height setting screws. If this adjustment materially alters the pivot position, it may be necessary to...

  • Page 22: Backrest Angle - Seat Depth

    Backrest angle adjustment Slacken the two Pivot Screws “A” in Figure 32. Tilt the backrest forwards or backwards to the new position as shown in Figure 33 and re-tighten both Pivot Screws. Figure 33 Figure 32 Seat Depth adjustment Figure 34...

  • Page 23: Asymmetrical Positioning

    Screws to secure the final position. Asymmetrical adjustments Slacken the Arm Pivot Screws and Locking Figure 40 Levers to rotate the backrest to the left or right Figure 41 The backrest can also be simultaneously moved sideways to the left or right to stay within the confines of the wheelchair arms or other restrictions.

  • Page 24: Backrest Loading

    Central Mounting Assemblies and Mounting Blocks at the highest and lowest practical attachment points.
  • Page 25 Backrest loading, stability and high tone - continued V-Trak shells are designed to flex in use in order to provide a combination of support, stability and freedom of movement. This flexibility can be modified, if required, by the use of shell stabilisers.

  • Page 26: Loading Guidelines

    Backrest loading, stability and high tone – loading guidelines The following guidelines are intended as a guide only and should not be used as a substitute for professional judgement, opinion or experience. Each installation will be unique and will require the issuer’s assessment of any risk and its management.

  • Page 27: Tissue Viability And Pressure Sores

    As with any seating equipment the usual precautions of assessment of tissue viability should be observed. Within the V-Trak range of backrests and accessories there is sufficient variety of size, shape, position and resilience to ensure adequate distribution of pressure and the avoidance of areas of high or inappropriate pressure.

  • Page 28: Safety Checklist

    Safety checklist Follow the instructions below to ensure the security and safe performance of a V-Trak backrest installation. If necessary, refer to the torque settings on the previous page. 1. Tighten both Pivot Screws (A) firmly. 2. Tighten both Height Setting Screws (B) firmly.
  • Page 29 Safety checklist - continued 5. Tighten Arm Pivot Screws (G) firmly. Immobilize the Arm Pivot Screws with a second wrench (W) while securing the Lock Nuts (H) 6. Check for easy release and replacement. 7. Adjust the Mounting Block alignment if necessary.
  • Page 30 Choosing a backrest system...
  • Page 31 Choosing a backrest system - continued...
  • Page 32 Designed and made in Wales by: Tel: +44 (0)1443 236 530 V-Trak Ltd Email: info@v-trak.com 17 Kent Road Bridgend Industrial estate...

This manual is also suitable for:

Mb-unLiteMb-r-ueMb-r-us

Table of Contents