Search found 100 matches

by Andy80
Mon Oct 31, 2022 8:13 pm
Forum: Excavators
Topic: New owner of Hymac 580B
Replies: 120
Views: 90737
Flag: Sweden

Re: New owner of Hymac 580B

Thanks Jeremy. Good to know that other models fit to :) I took the starter from the machine yesterday and opened the rear cover so the carbons were visible. There were four coals in total. I picked them out one by one and cleaned. Found that one carbon almust was stuck in its race, so I had to sand ...
by Andy80
Sun Oct 30, 2022 8:33 am
Forum: Excavators
Topic: Hymac 580BT 1969
Replies: 190
Views: 149338
Flag: Sweden

Re: Hymac 580BT 1969

Nice work! have heard of a couple of Hymac that had the engine completely destroyed coused of water in the airfilter. I was very close my self, but luckily the engine survived.
So allways good to keep it in good shape :)
by Andy80
Sat Oct 29, 2022 10:54 pm
Forum: Excavators
Topic: New owner of Hymac 580B
Replies: 120
Views: 90737
Flag: Sweden

Re: New owner of Hymac 580B

Helo Hymac friends. The starter on my Hymac seems to be worn out. It only crank the engine to start every ten time or so. Most times it only cranks half a rotation or so despite new battery. Anyone know the serial number to a new one? Is there other models than the CAV starter that fits? Im just in ...
by Andy80
Sat Jul 24, 2021 12:54 pm
Forum: Excavators
Topic: New owner of Hymac 580B
Replies: 120
Views: 90737
Flag: Sweden

Re: New owner of Hymac 580B

A brand new shaft arrived to me two weeks ago. This week i mounted it all together again. When i compered the new and the old shaft i could see that the old was pretty worn down in the splines, making the drivewhel to wiggle. The new shaft made it nice and tight. Now she tracks again! 20210720_13511...
by Andy80
Tue Jul 06, 2021 10:23 pm
Forum: Excavators
Topic: New owner of Hymac 580B
Replies: 120
Views: 90737
Flag: Sweden

Re: New owner of Hymac 580B

Okej. I had the shaft dismounted today and it came in two pices :shock: . But thanks to Jeremy i might get hold on a new one :thumbup:
20210706_220217.jpg
20210706_215440.jpg
20210706_215434.jpg
by Andy80
Mon Jul 05, 2021 10:00 pm
Forum: Excavators
Topic: New owner of Hymac 580B
Replies: 120
Views: 90737
Flag: Sweden

Re: New owner of Hymac 580B

Are you sure they are the same as 580bt?
I know that the gearbox is different.
But if the shaft is the same that is good news. Makes it easier to find one
by Andy80
Mon Jul 05, 2021 3:08 pm
Forum: Excavators
Topic: New owner of Hymac 580B
Replies: 120
Views: 90737
Flag: Sweden

Re: New owner of Hymac 580B

Suddenly the right track stoped tracking. I removed the cover over the chaindrive and found that the drivesprocket rotates normaly when the hydrauldrive is activated. But the big drivewheel in the trackpads are standing still. And with tha chain removed i can rotate the shaft by hand. That leeds me ...
by Andy80
Sun Oct 13, 2019 9:36 am
Forum: Excavators
Topic: Hymac Excavators
Replies: 1142
Views: 451969
Flag: Sweden

Re: Hymac Excavators

Would be wery interesting to see pictures of that restoration, expecially the restoration of the tracks :wave:
by Andy80
Sat Oct 12, 2019 9:33 am
Forum: Excavators
Topic: Hymac Excavators
Replies: 1142
Views: 451969
Flag: Sweden

Re: Hymac Excavators

So loveley to see that restored Hymac 480 :claphands: How did they find parts to restore it? The flat tracks locks brand new, where did they get dem?
by Andy80
Tue Sep 24, 2019 10:21 am
Forum: Excavators
Topic: Hymac 580C slew motor seals
Replies: 25
Views: 15977
Flag: Sweden

Re: Hymac 580C slew motor seals

Is the other hydraulic functions working at normal speed?
Do you have an extra boost on the dipper arm? If you have, it shares pump with the slew and should be sluggish to if the third pump is worn. Jeremy please correct me if i'm wrong :)

Go to advanced search