Setting Up The Base

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7.0 - Setting Up the Base:
7.0 Setting Up the Base
I. Anti-Tip Adjustment
Anti-tip lockout motors are only required on certain power bases. The style of anti-tippers and how they are adjusted differs depending on the powerbase. However, in all
cases, the proper set-up of the anti-tipper locking system is critical to ensure the stability of the wheelchair during tilt and/or recline functions.
Important!: Where appropriate, a wheelchair should never be released to the user
until the anti-tip mechanism is properly set up and tested.
i. Adjusting the Anti-Tippers (for the Quickie S-646)
The Quickie S-646 power bases are equipped with ratchet style anti-tippers at the rear
of the chair. In the regular drive mode, the anti-tip locks are not engaged, and the antitippers move freely up and down. This allows the wheelchair to drive up ramps, over
curbs or on uneven terrain. However, when the chair is tilted/reclined, the anti-tip locks
engage to limit the anti-tip travel and provide safety to the user.
1. To test that the anti-tip mechanism is functioning properly, place the seat in the
upright position and lift the anti-tippers up. The anti-tippers should be able to travel
without any obstruction. If the anti-tipper lock engages, tighten the cable from the front
(at the anti-tip motor) and repeat step 1.
2. Next, tilt the chair back approximately 10° and lift the anti-tippers up. The anti-tippers should lift approximately 1-2” and then the anti-tip latch should engage to prevent
further anti-tip travel. If the lock does not engage, loosen the cable from the front (at
the anti-tip motor) and repeat step 2.
3. Return the seat to the upright position and repeat test procedure until cable is properly adjusted.
For information regarding the setting of limit switches for the anti-tip system, please
refer to Section 4.0- the Electronic System: Setting the Limit Switch for the AntiTipper Latch (p. 46). Set-up information will also be provided in the associated TRx
Installation Manual.
When properly adjusted, the
spring should be partially, but not
completely compressed as shown.
Cable is loose
when engaged
Release Position: Anti-tip system is
Tilt/Recline Position: Anti-tip system
not engaged (right anti-tipper shown).
is engaged (right anti-tipper shown).
NOTES
TRD0157, Technical Training Manual, Rev 2.0 - January 20, 2006
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7.0 - Setting Up the Base:
I. Anti-Tip Adjustment
ii. Adjusting the Anti-Tipper Latch (for the Quantum Blast)
The Quantum Blast power base is equipped with anti-tippers at the rear of the chair. In the regular drive
mode, the anti-tip latches are not engaged, however, when the chair is tilted or reclined the anti-tip
latches engage to limit the anti-tip travel and provide safety to the user while in the tilted/reclined position..
1. To test that the anti-tip mechanism is adjusted and functioning
properly, place the seat in the upright position and lift the anti-tipCotter pin
per up. The anti-tipper should be able to travel without any impedance. If the anti-tipper latch engages the frame, tighten the cable
Cable bracket
using the cable adjuster at the anti-tipper and repeat step 1.
Spring
2. Next, tilt the chair back approximately 10° and lift the anti-tippers up. The latch should engage the frame to prevent further antitip travel. If the latch does not engage, loosen the cable from the
front and repeat step 2.
3. Return the seat to the upright position and repeat the test procedure until the cable is properly adjusted.
Anti-Tip
Lock Bracket
Anti-Tip
Latch
4. Make sure that the hook length is adjusted correctly. With the
anti-tipper not loaded, there should be approximately 1/8” clearance for the hook underneath the frame. This will ensure that the
hook will be able to pass underneath the frame even if the anti-tipper is loaded.
For information regarding the setting of limit switches for the anti-tip system, refer to Section 4.0- the
Electronic System: Setting the Limit Switch for the Anti-Tipper Latch (p.46). Set-up information
will also be provided in the associated TRx Installation Manual.
Anti-Tipper latch
properly engaged
Leave minimum 1/8” clearance
NOTES
TRD0157, Technical Training Manual, Rev 2.0 - January 20, 2006
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7.0 - Setting Up the Base:
I. Anti-Tip Adjustment
iii. Lowering Rear Anti-Tipper Wheels (for the Quickie Freestyle* F11/ M11)
When installaing any TRx power positioning system onto
a Quickie Freestyle F11 or M11 powerbase, the rear antitipper casters/ wheels must be re-mounted at the lowest
available setting on the rear forks (if they have not already
been installed in this position). The lower anti-tipper caster
position will ensure proper stability for the TRx Seating
System following installation.
Adjustable
Stopper
Rear A
n
(left sid ti-tipper
e show
n)
1. Loosen the rubber stopper and adjust it inward as far
as it can go (no visible threads)
2. Remove the existing bolt from the rear caster/ wheel.
3. Reposition the wheel to the lowest available mounting
position on the rear fork, re-insert the bolt and secure the
wheel in place.
4. To compensate for the lower anti-tipper wheel position,
the rubber stopper must be re-adjusted outward until the
stopper just makes contact with the base frame. Lock
stopper into position.
Anti-tipper
caster/ wheel
*Note: Images shown are from a
Freestyle F11 powerbase (the same
adjustments apply to the M11 powerbase)
Fo
rk
5. Repeat steps 1-3 for the remaining rear anti-tipper
Re
ar
Rubber stoppers must be
re-adjusted to compensate
for the revised anti-tipper
wheel position.
Height
Adjustment
Re-install caster/wheel at the lowest setting.
NOTES
TRD0157, Technical Training Manual, Rev 2.0 - January 20, 2006
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7.0 - Setting Up the Base:
II. Motor Adjustment
Certain powerbases allow for forward and aft adjustability of the drive motors and the suspension. This
may be necessary, prior to installation, to allow for proper clearance of the seating system, or it may be
required to maintain the overall stability of the wheelchair. The following section identifies powerbases
that require motor/ suspension adjustments.
Important!
The powerbase owners manual should always be referenced for instructions on adjusting the drive motor.
The powerbase manufacturer should be contacted directly regarding any questions or concerns.
i. Quickie S-525 (motor adjustment):
motor
mounting
bracket
drive
motor
motor mounting holes
rear wheel
removed
Original Drive Motor Location
revised bolt
positions
1. To adjust the Drive Motors, the rear
wheels must be removed to gain access
to the mounting bolts.
2. Remove the bolts and align the
mounting bracket for the drive motor in
the rearmost position (for greater stability). Note: In order to re-mount the
motor, different mounting bracket holes
were used.
3. Secure each motor into position and
re-mount the rear wheels
drive
motor
Drive Motor in Rearmost Mounting Location
NOTES
TRD0157, Technical Training Manual, Rev 2.0 - January 20, 2006
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7.0 - Setting Up the Base:
II. Motor Adjustment
ii. Storm 2nd & 3rd Generation (motor adjustment):
a.) Gearless Brush Motors
1. To adjust each Gearless Brush Motor, remove the four mounting bolts securing the drive motor to
the base (2 upper and 2 lower bolts- see photo).
2. Slide the motor into the rearmost mounting position for added stability. Note: there are 3 optional
drive motor mounting positions on the powerbase.
3. Re-install the 4 bolts to secure the motor into position.
opti
onal
mou
ntin
g po
sitio
ns
bolt locations
drive motor
Gearless Brush motor mounted in
rearmost position (right side shown)
b.) 4-Pole Motors
1. To adjust each 4-Pole Motor, remove the four mounting bolts securing the drive motor to the base
(2 inner and 2 outer bolts- see photo).
2. Slide the motor into the rearmost mounting position for added stability. Note: there are 3 available
drive motor mounting positions on the mounting bracket.
3. Re-install the 4 bolts to secure the motor into position.
optional mounting positions
drive
motor
bolt locations
4-Pole motor mounted in rearmost
position (left side shown)
NOTES
TRD0157, Technical Training Manual, Rev 2.0 - January 20, 2006
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7.0 - Setting Up the Base:
II. Motor Adjustment
iii. Quickie P220/ P222 (rear suspension/ motor adjustment):
The rear suspension on the Quickie P220/ P222 powerbases must be shifted rearward (on both sides
of the power base), prior to the installation of all TRx Super Low and Low-Pro CG seating systems.
1. Remove the 4 existing bolts in the suspension mounting plate (see image below) and retain the
hardware.
Rear Suspension Bracket
Suspension Mounting Plate
Remove 4 bolts (save
hardware) in order to shift
the suspension mounting
plate backwards.
Note: image shown with rear
wheel removed for clarity.
2. With the bolts removed, shift the suspension mounting plate so that the plate covers the three rearmost holes in the rear suspension bracket and extends backwards by one hole.
3. Install the base extension bracket such that it covers the to 2 foremost holes in the suspension
mounting plate and 2 holes in the rear suspension bracket (see image below). Use the existing hardware along with the mounting hardware provided by Motion Concepts to secure the components into
position. Repeat steps 1-3 for the opposite side of the power base.
Rear Suspension Bracket
Suspension
Mounting
Plate
Base Extension Bracket
TRD0157, Technical Training Manual, Rev 2.0 - January 20, 2006
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7.0 - Setting Up the Base:
III. TRx Ready Bases
Important!
With certain powerbases in the marketplace, it may be necessary for the base manufacturer to further
stabilize or strengthen the powerbase prior to the installation of our TRx power positioning systems.
These powerbases are typically referred to as “TRx-Ready” bases and may be ordered as such from
the manufacturer in the case of new systems. Any of these powerbases that exist in the field (that are
not TRx-Ready) must be upgraded by the manufacturer prior to installing our TRx Seating Systems.
i. Quickie G424 (with heavy-duty suspension)
The Quickie (Sunrise) G424 powerbase must be ordered TRx-Ready with a heavy-duty suspension for
all Motion Concepts seating system installations. If a field installation is requested, the G424 must first
be retrofitted by Sunrise Medical with a heavy-duty suspension.
ii. Jazzy 1121 (with modified stabilizer crossbar)
The Jazzy (Pride) J1121 powerbase must be ordered TRx-Ready with a modified stabilizer bar to
ensure adequate rearward stability for our seating system installations. If a field installation is requested, the J1121 must first be retrofitted by Pride Mobility with the modified stabilizer crossbar.
iii. Storm TDX 3,4,5 (with HD rear castor springs) *for Vent Applications
When a Vent system is installed onto any Invacare Storm TDX powerbase,
the rear castor springs must be upgraded to a stronger rear castor spring. The
Storm TDX may be pre-ordered from Invacare with the heavy-duty castor
springs installed, otherwise the springs must be upgraded by the Dealer at the
time of installation. The heavy-duty rear castor springs may be ordered
through Motion Concepts or directly from Invacare Corporation.
(Invacare Corporation- ph. 800-333-6900)
WARNING!
Depending on the complexity and weight of the TRx power positioning system being installed, it may
be necessary to upgrade the suspension of a powerbase (regardless of model) in order for the entire
seating system to operate safely. It is the Dealers responsibility to ensure the powerbase is set-up
properly and safely for the client. (Note: the specific weight of a power positioning system can be
provided by Motion Concepts upon request).
NOTES
TRD0157, Technical Training Manual, Rev 2.0 - January 20, 2006