doxford jim
Veteran Member
- Joined
- Mar 29, 2007
- Messages
- 1,007
- Location
- British Columbia, Canada
- Tractor
- 1959 MF-65 sold, 2007 Jinma 554 diesel.
Hi Guys,
I just had a new high output E-320 hydraulic pump fail (2007 Jinma 554 tractor). It was installed just a few days ago and worked fine when installed.
Today I was using the tractor and the FEL to clear some snow - and, because of the new pump, I was being very careful with my FEL.
With no warning or noise the pump failed - the casing split along the length of the pump and oil just sprayed out the casing
The pump was checked by hand before it was installed and the pump drive shaft turned fine - needed to use a small 6" crescent across the splines as there was just a small resistance as expected. There is no strain on the pump casing as the inlet steel pipe pretty much floats to where it is bolted on. The upper discharge connection flange is connected to a hydraulic hose which is flexible.
I have no idea of why the casing cracked unless the new pump had a faulty casing. At no time have I touched the pressure relief valve - it is the same as when I got the tractor new. I will take the releif valve apart and see if anything is amiss. That is the only thing I can think of is a faulty pump casing - the old pump I replaced was the original and I changed the pumps as the shaft seal had gone and I had the spare new pump sitting in the workshop.
Looks like another new pump is to be ordered.
Anyone else have the same failure with their alum. body hydraulic pump ? Will post a picture tomorrow after I get some taken.
Jim
I just had a new high output E-320 hydraulic pump fail (2007 Jinma 554 tractor). It was installed just a few days ago and worked fine when installed.
Today I was using the tractor and the FEL to clear some snow - and, because of the new pump, I was being very careful with my FEL.
With no warning or noise the pump failed - the casing split along the length of the pump and oil just sprayed out the casing
The pump was checked by hand before it was installed and the pump drive shaft turned fine - needed to use a small 6" crescent across the splines as there was just a small resistance as expected. There is no strain on the pump casing as the inlet steel pipe pretty much floats to where it is bolted on. The upper discharge connection flange is connected to a hydraulic hose which is flexible.
I have no idea of why the casing cracked unless the new pump had a faulty casing. At no time have I touched the pressure relief valve - it is the same as when I got the tractor new. I will take the releif valve apart and see if anything is amiss. That is the only thing I can think of is a faulty pump casing - the old pump I replaced was the original and I changed the pumps as the shaft seal had gone and I had the spare new pump sitting in the workshop.
Looks like another new pump is to be ordered.
Anyone else have the same failure with their alum. body hydraulic pump ? Will post a picture tomorrow after I get some taken.
Jim