Invacare Storm 4 Series, Service Manual

Page: 23 / 102

Service
Problem Other symptoms Possible cause Solution
Documentation
Motors lose power
while driving
None
Bad connections Switch mobility device
off, wait 10 seconds,
switch mobility device
on again. Check all
cabling. See 6.9.15 Cables,
page 68
Motor judders or runs
irregularly, or only
one motor runs
None
Carbon brushes worn Check carbon brushes
and replace if
necessary
See
Bearing defective Replacing motor See 6.6.1 Replacing
Motor-Gearbox
Unit, page 27
and
6.6.4 Replacing
Motor-Gearbox Unit
(Storm
4 X-plore), page
30
Collector defective Measure internal
resistance of motor,
replace motor if
defective See 6.6.1 Replacing
Motor-Gearbox
Unit, page 27
and
6.6.4 Replacing
Motor-Gearbox Unit
(Storm
4
X-plore), page
30
Motors do not run
None
Bad connections Check all cabling See 6.9.15 Cables,
page 68
Fuse burnt out Check cabling and
replace fuse See 6.9.15 Cables,
page 68 and 6.9.14
Main Fuse, page 67
Batteries defective Replace batteries
See 6.10.4 Removing
Batteries, page 75
Cabling to power
module or remote
defective Check cabling See 6.9.15 Cables,
page 68
Power module
defective Replace power module See 6.9.2 Replacing
LiNX power module
bracket, page 60
or 6.9.3 Replacing
True Trac Plus power
module, page 60
Corroded contacts Water, salt or urine
has penetrated Check cabling, replace
if necessary See 6.9.15 Cables,
page 68
Motor makes clicking
noise None Bearing defective Replacing motor See 6.6.1 Replacing
Motor-Gearbox Unit,
page 27
Collector defective Measure internal
resistance of motor,
replace motor if
defective See 6.6.1 Replacing
Motor-Gearbox
Unit, page 27
and
6.6.4 Replacing
Motor-Gearbox Unit
(Storm
4 X-plore), page
30 .
Scraping noise or
motor blocked
None
Bearing defective Replacing motor See 6.6.1 Replacing
Motor-Gearbox Unit,
page 27
Gearbox defective Replace gearbox See 6.6.4 Replacing
Motor-Gearbox Unit
(Storm
4 X-plore), page
30 and
1533060-N 23