Invacare Storm4 Series Service Manual page 18

Invacare® Storm⁴ Series
Problem
Motor makes clicking
noise
Scraping noise or
motor blocked
Transmission makes
clicking noise
Transmission losing
oil
Irregular running
Parts lost
Batteries not being
charged
Short charging period
Mobility device runs
too slowly
18
Other symptoms Possible cause
Power module
defective
Corroded contacts Water, salt or urine
has penetrated
None
Bearing defective
Collector defective
None Bearing defective
Transmission defective
None Transmission defective
Drive wheel loose
None
Sealing ring on drive
shaft defective
None
Drive shaft movable
or bent
None
Parts lost
None
Fuse burnt out, cable
defective
Batteries defective
LEDs blinking on Charging unit defective Replace charging unit
charging unit
None
One of the batteries
could be defective
None
Remote defective
Batteries defective
Documentation
Solution
Replace power module See 6.9.3 Replacing
Power Module, page
41
Check wiring, replace See 6.10.6 Cable
if necessary Routing, page 48
Replace motor See 6.7.1 Replacing
Drive Unit, page 23
Measure internal See 6.7.1 Replacing
resistance of motor, Drive Unit, page 23
replace motor if
defective
Replace motor See 6.7.1 Replacing
Drive Unit, page 23
Replace transmission See 6.7.1 Replacing
Drive Unit, page 23
Replace transmission See 6.7.1 Replacing
Drive Unit, page 23
Tighten drive wheel, See 6.8.6 Replacing
secure bolts with Drive Wheel (5–Screw
thread locking Installation), page 34
adhesive, if necessary
Replace transmission if See 6.7.1 Replacing
sealing ring defective Drive Unit, page 23
Check carbon brushes See 6.7.1 Replacing
for oil wetting, replace Drive Unit, page 23
motor if brushes wet and 6.7.2 Replacing
Carbon Brushes, page
24
Check drive shaft, See 6.7.1 Replacing
replace transmission if Drive Unit, page 23
defective
Re-attach parts once
found
Check wiring and See 6.10.6 Cable
replace fuse Routing, page 48 and
6.10.5 Main Fuse,
page 46
See 6.10 Batteries,
Replace batteries
page 44
See user manual
Replace batteries See 6.10 Batteries,
page 44
Replace remote See corresponding
remote manual
Replace batteries See 6.10 Batteries,
page 44
1555830-C