(Refer to WIRING CONNECTION DIAGRAM)

4 TROUBLESHOOTING GUIDE

4.1. CHECK POINTS FOR ELECTRICAL PARTS.

< TROUBLE > < CHECK > < REMEDY >
Does not operate. <CHECK BATTERY PACK.> NO Replace battery
→If no less than 24V DC is available across the (+) and (-) →pack.
terminals after charging the rated charging time (45min.),
the battery pack is OK.
NOTE: The battery pack is sold separately as an optional
accessory. See the nearest sales dealer for
details. The battery pack has a limited life.
The pack should be replaced if;
-after being charged for the rated charging
time the battery voltage is less than 24V DC
or the usable time is extremely short.
-the battery leaks.Check battery for leaks
and terminals for corrosion.
↓OK
<CHECK TERMINAL CONNECTIONS BETWEEN NO Repair contacts or
MAIN UNIT AND BATTERY PACK.> →replace switch
Check for proper terminal contacts or if there is any foreign assembly.
substances around the battery terminals ofbattery holder.
↓OK
<CHECK MOTOR.> NO Replace motor
The motor normally operates with its white (+) and gray (-) →rotor and brush
lead wires connected to 24V DC. assembly.
Does not speed- <CHECK SWITCH.> NO Replace switch &
control but switch →Even ifFET block is defective, it can not be replaced →FET block.
trigger works individually. Replace whole switch block.
properly.
6
EY6813-U1