51
Periodic maintenance
FIG 4-3
Carry out all recommended maintenance in this manual.
Check work calculagraph (hour meter) usually
Determine when the machine needs periodic maintenance according to calculagraph ①.
The intervals in the periodic maintenance list are based on the normal condition. If operate
excavator in bad conditions, the intervals should be shorten.
⚫ Use recommended fuel, hydraulic oil and lubricant.
⚫ Only use original SUNWARD parts.
⚫ If user doesn’t use recommended fuel, hydraulic oil, lubricant and original SUNWARD
parts, the warranty will automatically be invalid.
⚫ Never adjust engine rev limiter or hydraulic system safety valve.
⚫ Avoid electric parts touching water and vapor.
⚫ Never disassemble engine pump controller, sensor, etc.
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