dfkrug
Super Member
- Joined
- Feb 3, 2004
- Messages
- 7,559
- Location
- Santa Cruz Mtns, CA
- Tractor
- 05 Kioti CK30HST w/ Prairie Dog backhoe, XN08 mini-X
Now the 2 loaders.
Published specs show the 7TL loader to be a bit more forceful than the
KL130. It is hard to make a fair comparison from the brichures, however.
Here are my measured field observations:
> The 7TL's boom is made from 2x4x.25 rectangular tubing, bent in the
middle only. The KL130 uses 2x5x.20 rect tubing, made with a continuous
curve. Actual dims are 2.025"x4.025x.250 and 2.00x 4.875x.200 respectively.
The KL130's continuous curve causes some variation of the 2" dimension
from about 1.96 to 2.02.
> The 7TL's Bobtach uses a vertical pin spacing of 8.0", vs. only 5.5 for the
KL130. That should yield a greater breakout force for the 7TL, despite
the longer distance to the bkt lip.
> The 7TL's boom arm spacing is about 4.5" wider. Both have cross tube
designs that do not penetrate thru the arms. The Bobcat's is clearly
stronger, however.
> Relief specs are 2611 for the 7TL, and 2560 for the KL130. My Bobcat
came with reliefs set at 3000. Ooops.
> The boom moment arms are 13.5/67.75 for the 7TL, and 12.5/68.25 for the
KL130. The ratios are .199 and .183, which means that the 7TL will deliver
9% more force at the bkt pin for the same cyl forces.
> But the cyls are not the same: 7TL uses slightly smaller cyls and rods,
ODs are 2.135 and 1.125, while the KL's are 2.170 and 1.18. I do not know
the ID of the 7TL, so ODs are compared. Net cyl forces should be similar if
the 7TL is set at the higher specced pressure of 2611.
> The 7TL uses -6 JIC hose connections, vs. the KL's -5 JICs. The -5s are
hard to find, so I did not even pressure test my FEL until I had it more than
a year. No issue with flow rate.
> The Bobcat's cyls use wire-retained glands, instead of screw-ons. I find
the the wire-retained cyls harder to rebuild. The 7TL also has black chrome
rods....I wonder if they will last longer than regular chrome?
> Finally, the 7TL's FEL hoses hang way down below the tractor. The risk
of ripping out hyd parts below is even worse than the CK30's. And the
CK's risk is BAD. I think the Bobcat must be protected from this kind of
damage. I will fab up a skid plate I think. (The DK/CT3xx tractors are way
better in this regard.)
Published specs show the 7TL loader to be a bit more forceful than the
KL130. It is hard to make a fair comparison from the brichures, however.
Here are my measured field observations:
> The 7TL's boom is made from 2x4x.25 rectangular tubing, bent in the
middle only. The KL130 uses 2x5x.20 rect tubing, made with a continuous
curve. Actual dims are 2.025"x4.025x.250 and 2.00x 4.875x.200 respectively.
The KL130's continuous curve causes some variation of the 2" dimension
from about 1.96 to 2.02.
> The 7TL's Bobtach uses a vertical pin spacing of 8.0", vs. only 5.5 for the
KL130. That should yield a greater breakout force for the 7TL, despite
the longer distance to the bkt lip.
> The 7TL's boom arm spacing is about 4.5" wider. Both have cross tube
designs that do not penetrate thru the arms. The Bobcat's is clearly
stronger, however.
> Relief specs are 2611 for the 7TL, and 2560 for the KL130. My Bobcat
came with reliefs set at 3000. Ooops.
> The boom moment arms are 13.5/67.75 for the 7TL, and 12.5/68.25 for the
KL130. The ratios are .199 and .183, which means that the 7TL will deliver
9% more force at the bkt pin for the same cyl forces.
> But the cyls are not the same: 7TL uses slightly smaller cyls and rods,
ODs are 2.135 and 1.125, while the KL's are 2.170 and 1.18. I do not know
the ID of the 7TL, so ODs are compared. Net cyl forces should be similar if
the 7TL is set at the higher specced pressure of 2611.
> The 7TL uses -6 JIC hose connections, vs. the KL's -5 JICs. The -5s are
hard to find, so I did not even pressure test my FEL until I had it more than
a year. No issue with flow rate.
> The Bobcat's cyls use wire-retained glands, instead of screw-ons. I find
the the wire-retained cyls harder to rebuild. The 7TL also has black chrome
rods....I wonder if they will last longer than regular chrome?
> Finally, the 7TL's FEL hoses hang way down below the tractor. The risk
of ripping out hyd parts below is even worse than the CK30's. And the
CK's risk is BAD. I think the Bobcat must be protected from this kind of
damage. I will fab up a skid plate I think. (The DK/CT3xx tractors are way
better in this regard.)