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Motor
Service
item
Service required Tool D W M T S
DC motor
Clean the foreign body on the motor
Clean or replace the bearing
Check the carbon brush and
commutator for worn,
spring is normal
or× or×
Whether the connection is correct
and firm.
commutator segment groove and
commutator surface.
AC motor
Clean the foreign body on the motor
Check vibration and noise, if the
base is firm.
or× or×
Whether the connection is correct
and firm.
If temperature is normal and current
is normal.
Driving system
Service
item
Service required Tool D W M T S
Reduction box
Check for noise
Check for oil leakage
Replace gear oil ×
Steering
mechanism
Bearing lubrication
Check if the steering flexible
Check for noise
Control handle swivel angle
Wheel Drive wheel, auxiliary wheel, load wheel
Service
item
Service required Tool D W M T S
Wheel
Check for abrasion or cracks Eyeballing
Check for bolt fastening and
re-tighten.
Check if there is foreign body
rope on the wheel