TGA POWERPACK Operating Instructions And Owner's Handbook page 6

NOTE:
When using the Powerpack in
conjunction with the TGA Strongback
wheelchair, these brackets are integral
to the frame and do not require fitting.
Fig 2 Crossbar assembly (front view)
A. Crossbar housing
B. Crossbar
C. Mounting bracket - right hand
D. Mounting bracket - left hand
E. Hand wheel
F. Crossbar wing nut
5. Take the two crossbar tubes. Insert
the smaller diameter tube into the larger
diameter tube at the hand wheel end (Fig
2E). Fit the larger diameter tube over the
right-hand mounting bracket (Fig 2C).
Now compress the smaller diameter tube
against the spring and offer it up to the
left-hand mounting bracket. Allow the
spring to extend the tube over the bracket.
Please note that the crossbar on the Heavy
Duty model is not spring loaded, only the
Solo and Duo model has a spring loaded
crossbar. Take care when using the crossbar
as it is spring loaded and could cause
damage or injury if not used correctly. Avoid
over tensioning the spring by pushing the
inner tube in more than necessary. Avoid
pointing at anyone. Take care when fitting.
Please note: On some heavy duty and
some specialist wheelchairs it may be found
that the crossbar is a little too long. Please
consult your dealer or TGA.
6. Ensure the wheelchair is fully open (see
wheelchair manufacturer's handbook). Adjust
the position of the clamps so that they
are directly opposite each other and the
crossbar is at right angles to the wheelchair
frame. Now lightly tighten the clamp
retaining bolts with the allen key provided.
7. Compress the crossbar and remove from
the wheelchair. Now hold the Powerpack so
that the wheel is making contact with the
ground and the crossbar housing is pointing
away from you. Keeping the crossbar hand
wheel to the left, insert the crossbar into the
crossbar housing tube at the front of the
motor.
8. Ensure wheelchair brakes are on and fit
the Powerpack complete with crossbar on
to the wheelchair by holding it in position
and placing the right-hand end of the
crossbar over the mounting bracket (Fig 3).
Allow the spring to extend the left-hand
tube over the other mounting bracket and
lightly tighten the hand wheel (Fig 2E). To
avoid damaging the crossbar, do not over
tighten. The crossbar must always be fully
extended against the mounting brackets to
ensure safe attachment to the wheelchair
frame. The wheelchair should always be fully
extended prior to attaching the Powerpack
and once the chair has been sat in, ensure
that it has not expanded further and that the
crossbar remains fully extended against the
mounting brackets.
Fig 3 Attaching crossbar
9. Check the alignment with the rear wheels
and centre line of the wheelchair (see
paragraph 3). Now firmly tighten the clamp
bolts on the crossbar mounting brackets.
Next, ensure the crossbar is firmly against
the mounting bracket shoulders and then
tighten the crossbar hand wheel taking
care not to damage the crossbar by over
tightening. The drive wheel or wheels can
be centralized between the wheelchair
wheels by sliding the motor assembly along
the crossbar. After centralising, tighten the
crossbar wing nut (Fig 2F). Again, take care
not to over tighten.
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