Invacare TDX SP2 Series Service Manual page 16

Invacare® TDX® SP2 Series
Problem
Motors lose power
while driving
Motor judders or runs
irregularly, or only
one motor runs
Motors do not run
Motor makes clicking
noise
16
Other symptoms Possible cause
None
Motor defective
None
Power module
defective
None
Bad connections
None
Carbon brushes
worn (only applies
for motors without
lifetime brushes)
Clutch(es) defective
Bearing defective
Collector defective
None Bad connections
Fuse burnt out
Batteries defective
Cabling to power
module or remote
defective
Power module
defective
Corroded contacts Contacts defective
None
Clutch(es) defective
Documentation
Solution
Check carbon brushes See 6.7.5 Replacing
and replace if carbon brushes, page
necessary. 31.
See 5.1 Testing
Measure internal
resistance of motor, Motor, page 11
replace motor if and 6.7.2 Replacing
defective. Motor/Gearbox Unit,
page 29.
Replace power See 6.10.1 Replacing
module Power Module, page
42.
Turn off electronics, See 6.10.7 Checking
wait 10 seconds, turn cable, page 45.
on electronics. Check
all cabling.
Check carbon brushes See 6.7.5 Replacing
and replace if carbon brushes, page
necessary (only 31.
applies for motors
without lifetime
brushes).
Replace clutch. See 6.7.2 Replacing
Motor/Gearbox Unit,
page 29.
Replace motor. See 6.7.2 Replacing
Motor/Gearbox Unit,
page 29.
Measure internal See 5.1 Testing
resistance of motor, Motor, page 11
and6.7.2 Replacing
replace motor if
Motor/Gearbox Unit,
defective.
page 29.
Check all cabling. See 6.10.7 Checking
cable, page 45.
Check cabling and See 6.10.7 Checking
replace fuse. cable, page 45 and
6.11.7 Checking and
replacing main fuse,
page 49.
Replace batteries. See 6.11.4 Replacing
Batteries (60 Ah /
73 Ah), page 47
and6.11.6 Replacing
Batteries / Battery
Cables, page 48.
Check cabling. See 6.10.7 Checking
cable, page 45.
Replace power See 6.10.1 Replacing
module. Power Module, page
42.
Check cabling, replace See 6.10.7 Checking
if necessary. cable, page 45.
Replace clutch. See 6.7.2 Replacing
Motor/Gearbox Unit,
page 29.
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