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Volvo ec220DL creeping track motors and free swinging slew

Backpaddockdiggers

Backpaddockdiggers

Member
Joined
Mar 14, 2023
Messages
8
Location
New Zealand
Hey Team. Wondering can point me in the right direction to rectify these faults. The track motors (started with one now both doing it) won’t lock for a little while after tracking but once they do no problem. Locked still.
And the slew problem, sometimes when you stop and flick the lockout lever it slowly freespools counter clockwise about a meter then stops.
 
Hffhvg

Hffhvg

Well-Known Member
Joined
Nov 9, 2023
Messages
69
Location
Slovenia
Gary Layton said:
Re: slew issue...check this thread for possible answer...my solution to the same problem is in post #2.

Click to expand...
My guess is it’s not a free swing switch since the upper structure of the excavator does stop which would mean that the swing brake applies, meaning the switch is not engaged.
I would say some wear in the rotary group of the swing hydraulic motor since the oil doesn’t stay under pressure leaving the upper structure in a “free swing” until the brake applies. Simplest way to check is to test the leakage of swing motor.
I had a similar problem to yours, maybe check my thread if it would help you:
 
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