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D i a g n o s t i c s
D i a g n o s t i c s
9.
9.3.4 S
3.4 Slewing
lewing mechanism
mechanism
Problem
Causes
Remedy
Problem
Causes
Remedy
Brake invalid.
Brake invalid.
Brake lining is worn and has reached the wear
Brake lining is worn and has reached the wear
limit.
limit.
Replace
Replace
The slewing
The slewing
mechanism does
mechanism does
not work.
not work.
Setting pressure of relief valve of chassis
Setting pressure of relief valve of chassis
control valve is too low.
control valve is too low.
Adjust
Adjust
Setting pressure of relief valve of slewing
Setting pressure of relief valve of slewing
valve is too
valve is too low.
low.
Adjust
Adjust
Setting pressure of slewing cushion valve is
Setting pressure of slewing cushion valve is
too low.
too low.
Adjust
Adjust
Slewing valve invalid.
Slewing valve invalid.
Replace
Replace
Slewing
Slewing motor
motor damaged.
damaged.
Rectify
Rectify or
or replace
replace
Slewing
Slewing reducer
reducer defects.
defects.
Rectify
Rectify
Brake
Brake is
is not
not activated.
activated.
Rectify
Rectify
The slewing
The slewing
movement is
movement is
abnormally slow.
abnormally slow.
Setting pressure of relief valve of chassis
Setting pressure of relief valve of chassis
control valve is too low.
control valve is too low.
Adjust
Adjust
Setting pressure of relief valve of slewing
Setting pressure of relief valve of slewing
valve is too
valve is too low.
low.
Adjust
Adjust
Slewing
Slewing valve
valve defects.
defects.
Rectify
Rectify
Slewing
Slewing cushion
cushion valve
valve defects.
defects.
Rectify
Rectify
Slewing
Slewing motor
motor defects.
defects.
Rectify
Rectify
Содержание QY30V
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