Fitting Clutch Rotary Knob; Replacing And Calibrating True Track Plus Motor - Invacare Storm4 Service Manual

5. Note fixing position and location of carbon brushes.
To guarantee optimum contact to the collector
used carbon brushes need to be refitted exactly
in same position from which they were taken.
6. Make marking on motor and carbon brushes to
guarantee correct refitting.
7. Remove carbon brushes completely from mounting (2).
8. Check carbon brush and spring for level of wear, broken
components or discolouration.
Refitting carbon brushes
1. Depending on condition of brush and spring:
• either replace brushes in exactly the same position
from which they were taken or
• fit new brushes.
2. Refit plastic caps and tighten firmly.
3. Turn motor into position so that clutch lever or clutch
rotary knob (from 08/2014) can be set either to "push"
or "drive" position.
4. Tighten bolt (5) fingertight.
5. Install drive wheels. See 6.7.2 Replacing drive wheel,
page 34.
The following procedure is necessary to run
carbon brushes in after replacement and thus
guarantee maximum performance.
CAUTION!
Risk of accidents
Risk to workers, surroundings and mobility
device
– Do not leave mobility device unattended
during following procedure
– Secure area.
6. Lift mobility device on one side and place a 14 cm
high wooden block underneath it so that drive wheel
is off ground and can rotate freely. Use proper lifting
techniques.
7. Repeat this on other side of mobility device.
8. Run motors for an hour in forward direction.
9. Allow motors to cool down for 30 minutes.
10. Run motors for an hour in reverse direction.
11. Lift mobility device off wooden blocks.

6.6.6 Fitting clutch rotary knob

When replacing the clutch rotary knob, you must
ensure that the correct fitting position is used during
assembly.
Tools:
• 3 mm Allen key
1. Screw shim onto grub screw.
2.
Place screw joint in rotary knob (rear side (1).
1533060-M
3.
Check that screw joint (4) is positioned precisely in
rotary knob.
4. Place nonwoven fabric (3) in rotary knob (rear side (1).
5.
When installing rotary knob (5) make sure that position
(6) is correct.
6.
Tighten bolt (7) using an 3 mm Allen key.
7.
Check that clutch rotary knob can be turned to
"push" position (clockwise) and "drive" position
(counterclockwise).

6.6.7 Replacing and calibrating True Track Plus motor

We recommend reading this instruction before you
begin work.
First check whether mobility device is equipped
with puncture-proof tires or pneumatic tires.
Depending on whether mobility device is equipped
with puncture-proof tires or pneumatic tires, process
of removing and and installing will be different. You
can recognise puncture-proof tires by the fact that
they do not have a valve.
Replacing motor
WARNING!
Risk of crushing
Mobility device is very heavy. Risk of injury to
hands and feet.
– Use proper lifting techniques.
CAUTION!
Risk of injuries caused by uncontrolled movement
of mobility device
– Switch off power supply (ON/OFF key).
– Engage drive.
– Before raising mobility device, secure wheels by
blocking them with wedges.
Service
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