Chris1113
Well-Known Member
I knows there is other threads for this same issue. Im opening this one for tracking what I’ve done to try to solve this issue. I appreciate any help.
Yesterday I experienced this issue intermittently. Normal then slow then normal again. I figured it was the throttle cable that was jury rigged because I revved the engine up as high as I could and then the hydraulics sped up again(to actual full speed)
Today, noticed the same issue…hydraulics were slow but this time nothing seemed to fix it.
Heres what happened today.
On Auto Idle:
1. Slow bucket curl in
2. Slow main boom up
3. Arm in and out seem slow
3. Track speed is slow as well
4. Swing speed is fine
5. Bucket out is fine
On other modes everything is slow.
Higher engine rpm does speed the hydraulics up but not by a lot.
It still builds pressure enough to dig a full bucket of dirt and lift as high as the boom can go. Its just slow.
Also noticed a “shhhhh” coming from the main valve block when no input is given on the controls. Can’t remember if this is normal. Ive only had the excavator for a week now.
One last thing, when the hydraulics were working fine yesterday, I noticed as more load was introduced to the hydraulics, the engine would work to supply more flow(or bog). Now it doesnt matter if I go to dig a stump, it seems to be only operating at a static flow rate. The hydraulic pump and engine don’t seem to be working in unison like before.
Yesterday I experienced this issue intermittently. Normal then slow then normal again. I figured it was the throttle cable that was jury rigged because I revved the engine up as high as I could and then the hydraulics sped up again(to actual full speed)
Today, noticed the same issue…hydraulics were slow but this time nothing seemed to fix it.
Heres what happened today.
On Auto Idle:
1. Slow bucket curl in
2. Slow main boom up
3. Arm in and out seem slow
3. Track speed is slow as well
4. Swing speed is fine
5. Bucket out is fine
On other modes everything is slow.
Higher engine rpm does speed the hydraulics up but not by a lot.
It still builds pressure enough to dig a full bucket of dirt and lift as high as the boom can go. Its just slow.
Also noticed a “shhhhh” coming from the main valve block when no input is given on the controls. Can’t remember if this is normal. Ive only had the excavator for a week now.
One last thing, when the hydraulics were working fine yesterday, I noticed as more load was introduced to the hydraulics, the engine would work to supply more flow(or bog). Now it doesnt matter if I go to dig a stump, it seems to be only operating at a static flow rate. The hydraulic pump and engine don’t seem to be working in unison like before.
