RMS caddy Installation And User Manual - page 12
12
BACKREST INSTALLATION
(Positive Locking Backrest)
This model of caddy
Backrest is equipped with a Positive Locking mechanism,
which enables the Backrest Panel to be easily removed or installed as required.
The upper area of the Backrest is secured to the wheelchair, by Support Brackets
attached to the Backrest Panel and Upper Backrest Mounting Lock-Pin Brackets,
which are securely clamped to the wheelchair backrest frames. Fig.9.
SEAT UNIT only SUPPLIED
Backrest Installation
Hexagon Keys 3,4 & 5mm
To assist the installer with locating
the most suitable mounting positions
for the Upper Backrest Mounting Lock-
Pin Brackets, the Backrest Panel
should be placed against the
wheelchair backrest frames, with the
Positive Locking Stem Fig.3, fully
engaged into the Positive Locking
Mechanism, Fig.9.
A minimum 50mm of straight
Backrest Frame will be required
to enable the Lock-Pin Bracket
Mounting Clamps Fig.10. to be
attached correctly attached.
Separate the two halves of the
Clamps by removing both clamping
screws. Install the Lock-Pin Brackets
onto the wheelchair backrest frames as
Fig.10 and secure the Clamps just
sufficient to maintain their positions on
the frames. DO NOT fully tighten at
this stage.
Positive Locking
Mechanism Catch
Backrest Support
Brackets
Upper Backrest
Mounting
Lock-Pin Brackets
Fig.9
Safety
Locking-Pin
Pull to remove
Clamping
Screws
Fig.10
Lock-Pin Bracket
Mounting Clamps.
17
Accessory TRICEP PADS and SHOULDER PADS
INSTALLATION and ADJUSTMENT
Both Tricep Pads and Shoulder Pads are available in two sizes, 75x100mm and
100x150mm. The Tricep Pads are supplied with 25mm adjustment links, whereas
Shoulder Pads will be supplied with 50mm adjustment links. The devices are
intended to give additional support to the user’s shoulder areas and the muscle
areas at the rear of the upper arms.
2.5mm and 4mm Hexagon Keys
The Backrest Panel is manufactured with a matrix of holes to enable the
attachment of accessories to either the front or rear face, see Fig. 23.
Both Tricep and Shoulder Pad
Mounting Brackets, should be
attached to the rear face, with
their attachment screws installed
from the front.
The installer will need to locate
the ideal positions to suit the
user’s requirements for the
Mounting Brackets, taking into
account the current position of
the Lateral Supports the
wheelchair sidearms.
The wheelchair should be
vacated prior to commencing
installation.
Detach and remove the upper section of the
Backrest Upholstery.
To mount the Tricep or Shoulder Pads their
Brackets should be attached to the rear face of
the Backrest Panel using the screws provided
through the appropriate holes from the outer two
lines of pre-drilled holes on each side, screwing
into the pre-tapped holes in the Brackets. As
there is no adjustment at this point, fully tighten
screws to prevent any movement.
Lateral rotational adjustment can be made by the Adjustment Links, by peeling
back their fabric covers to gain access to the two main pivot screws. With the
correct positions achieved, fully retighten the main pivot screws. The Pad
positions can then be securely locked by tightening all Link locking grub-screws
Fig.24. NOTE: There are two grub-screws on the top and bottom links.
Refit link covers.
The wheelchair sidearms may also require re-positioning.
Shoulder
Pads
Tricep
Pads
Fig.23
Main pivot
screws
Link locking
grub-crews
Backrest
Panel
Link cover temporarily removed
Fig.24