USER MANUAL
33014816(1)2005-07 A
13
Overheating
CAUSE
CHECK
REMEDY
Overload
Current to the motor
Subject the motor to less strain
Insufficient air flow
Check suction/delivery openings
Clean or change shields or caps
Fan rotation
Replace fan
Wrong voltage
Low battery voltage
Recharge batteries
Low voltage to motor terminals
Check connections for proper tightening
Bearings
Faulty or badly installed bearing
Change bearings or change at every repair
operation
Radial overload
Check stress and strain
Dirt infiltration
Clean the motor inside
Winding heating
Armature with shorted blackened winding
Replace. Use only original spares. Do not
rewind.
High humidity
Clean and dry at 110°C
Shorted coil or winding, blackened insulating
material
Replace. Use only original spares.
Loose inner connection
Check and tighten correctly
Commutator heating
Short-circuit between segments
Clean commutator and contact the
manufacturer
Poor contact or worn carbon brushes
Check or replace
Improper carbon brush quality
Only original carbon brush and for 48 V
voltages
Excessive spring pressure
Recalibrate or change
Dirty or damaged surface
Clean or rectify the commutator
Summary of Contents for SR 1700 2WD B
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