kobelco sk200lc

[bill kelleher]

hi, new to the site. I am working on a kobelco sk200lc. The engine cranks fine at first, pump pressure build's up and deadhead's slows engine cranking before it can start acts like dead batteries let it sit for a few hrs and will crank till pressure builds again. I removed both hoses to spool valve and made extensions, drain fluid back to tank from pump engine started and ran is there a system relief or a bypass if so where? or is it something else? any help would be appreciated.

 

[Kobelco ireland]

Serial number?
Full model (- 6or-6e)?
Year?
Any faults on monitor. If not you need to fit pressure gauges on pumps to see which pump or are both pumps building to much pressure

 

[bill kelleher]

ser # YQU4178 as for the mod # no other plates on unit this thing is beat up. its a old unit

 

[Kobelco ireland]

OK some pictures of inside of cab and pumps will help identify it. Also a bit of history about it would help. Did this problem happen all of a suddenly were there any other repairs done just prior to this problem. Any faults on the monitor

 

[LACHAU]

ser # YQU4178 as for the mod # no other plates on unit this thing is beat up. its a old unit

OK some pictures of inside of cab and pumps will help identify it. Also a bit of history about it would help. Did this problem happen all of a suddenly were there any other repairs done just prior to this problem. Any faults on the monitor

Hi,
YQU.... is SK200LC/MC Mark IV in the US market (The letter U means US's market).