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The cause of the caterpillar 320B excavator unable to swing left and only swing right is that there is a stuck or stuck on the pilot handle spool, the cause of the jam is caused by the condition of hydraulic oil mixed with water.
The way to solve this problem can be by cleaning the stuck part of the spool by sanding and washing it clean and immediately changing the oil that has been mixed with water.
For friends who need heavy equipment mechanic services, call around Balikpapan (Kaltim) can DM on my IG @ronymanndrova6955
Or FB / rony.manndrova
#excavatorcaterpillar#caterpillar320B#ronymanndrova