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9.2 Periodic maintenance schedule
D= work every 8 hours(or per day)
W= work every 40 hours(or per week)
M= work every166 hours(or per month)
T= work every 500 hours(or 3 months)
S= work every 1000 hours(or 6 months)
〇 —Check, revise, adjust
× —Replace
Battery
Looseness of connecting wire
Cleanness of the battery surface
If there are tools on the battery
The tightness and smoothness of
air cap
Controller
Check wear condition of contact
Check the running condition of
contactor
Check interlock inching switch for
running
Check the connection among motor,
battery and power unit
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