Rob
Member
Lifetime Member
Equipment
B6000DT / B7100DP /B8200DT/L225/Globe PTO Chipper/Lewis Backhoe/huxley TR66
I've had another one of my mad ideas this afternoon with a solution (hopefully that is) to my ongoing issue of front counter weight when using my recently aquired lewis backhoe .
As i currently don't have a FEL for either, and nothing seems to be forthcoming, i have decided the best option is to fabricate something specific to my requirements.
Working on the basis i need counter weights to offset the rear backhoe as a miniumum requirement , but also require the stability that a FEL would offer when using the backhoe, logic would suggest to me the following.
I need to fabricate a specific subframe which incorporates a fixing method for various types of weights but more importantly has a stabilizing device which can be lowered/raised quickly and easily when using the backhoe, also retain the flexability of being able to be removed / fitted easliy when needed.
My plan is this, both the B8200 and B7100 use the same basic engine format ( in the form of the 70mm series engines) with the same engine block , the engine mounting points for the front subframes is identical, just the b8200 front subframe is longer overall but at the engine mouting section bolt config is the same.
My plan is to fabricating a 2 peice hydrualic stabilizer frame with counter weight fixing points located a specific points to avoid undue stress to the tractor., but , still have the desired effect of counter weights.
One full lenght subframe which , like the FEL subframes, will run the lenght of the chasis, mounting on the rear axle housing and also onto the exisisting front subframe into the the engine mounts etc , this will we be left fitted all the time in the same way as a FEL subframe would be.
Next this section will have a quick realease system, nothing complicated , but strong and secure so that the actual weight, sabilizer section can be engaged into/onto which ever works best.
The second part of the subframe will be a quite substantial setup , it will have 2 hydraulic outrigger type stabilizers(see pic 2) similar in design as my lewis backhoe setup, upright 2-way rams with large contact area ground pads.
Each sabilizer will have a telescopic arm which can be use to get as much stability to the ground pad as possible.
These may be manually operated (remove pin and slide out) or i hydraulic operated which i prefer, by having individually operated stabilizers , it gives me a good range of adjustment on unven surfaces.
The 2 section also will have thecounter weight mounts, i'm thinking suitcase weights , but maybe cast iron barbell weights(lots of weight combinations that way).
So then, i think it may work, a good strong framework which will serve to hold my backhoe on the rear and the stabilizer on the front.
size wise, the overall width will still be less or equal to that of a FEL front bucket so a good starting point , but with the legs at full extension (if needed that is)i think it will be really stable on soft or uneven ground.
I also think that the overall weight of the stabilizer attachment for the front, to much extra weight may not be required.
this may sound complicated , but i have been thinking about it for a few days now, and, i rekon its not to complicated in reality.
I allready have the hyd capacity and a free connection for a spool on my 7100, andbetter still on my 8200 there are two ready made connections on the hydraulic block, so just need a spool , job done.
, well hopefully
pics attached of my backkhoes stabilizers setup, i'm think something similar, but not quite the same, when i have a better pic or daigram i'll add it.
If you have ever seen one of these mobile cranes, 4 wheel or 16 wheel or similar, a lot of them have independant hydraulic stabilizer legs on all four corners of the machine, so this will be very similar basic idea.
over and out...
rob
As i currently don't have a FEL for either, and nothing seems to be forthcoming, i have decided the best option is to fabricate something specific to my requirements.
Working on the basis i need counter weights to offset the rear backhoe as a miniumum requirement , but also require the stability that a FEL would offer when using the backhoe, logic would suggest to me the following.
I need to fabricate a specific subframe which incorporates a fixing method for various types of weights but more importantly has a stabilizing device which can be lowered/raised quickly and easily when using the backhoe, also retain the flexability of being able to be removed / fitted easliy when needed.
My plan is this, both the B8200 and B7100 use the same basic engine format ( in the form of the 70mm series engines) with the same engine block , the engine mounting points for the front subframes is identical, just the b8200 front subframe is longer overall but at the engine mouting section bolt config is the same.
My plan is to fabricating a 2 peice hydrualic stabilizer frame with counter weight fixing points located a specific points to avoid undue stress to the tractor., but , still have the desired effect of counter weights.
One full lenght subframe which , like the FEL subframes, will run the lenght of the chasis, mounting on the rear axle housing and also onto the exisisting front subframe into the the engine mounts etc , this will we be left fitted all the time in the same way as a FEL subframe would be.
Next this section will have a quick realease system, nothing complicated , but strong and secure so that the actual weight, sabilizer section can be engaged into/onto which ever works best.
The second part of the subframe will be a quite substantial setup , it will have 2 hydraulic outrigger type stabilizers(see pic 2) similar in design as my lewis backhoe setup, upright 2-way rams with large contact area ground pads.
Each sabilizer will have a telescopic arm which can be use to get as much stability to the ground pad as possible.
These may be manually operated (remove pin and slide out) or i hydraulic operated which i prefer, by having individually operated stabilizers , it gives me a good range of adjustment on unven surfaces.
The 2 section also will have thecounter weight mounts, i'm thinking suitcase weights , but maybe cast iron barbell weights(lots of weight combinations that way).
So then, i think it may work, a good strong framework which will serve to hold my backhoe on the rear and the stabilizer on the front.
size wise, the overall width will still be less or equal to that of a FEL front bucket so a good starting point , but with the legs at full extension (if needed that is)i think it will be really stable on soft or uneven ground.
I also think that the overall weight of the stabilizer attachment for the front, to much extra weight may not be required.
this may sound complicated , but i have been thinking about it for a few days now, and, i rekon its not to complicated in reality.
I allready have the hyd capacity and a free connection for a spool on my 7100, andbetter still on my 8200 there are two ready made connections on the hydraulic block, so just need a spool , job done.
, well hopefullypics attached of my backkhoes stabilizers setup, i'm think something similar, but not quite the same, when i have a better pic or daigram i'll add it.
If you have ever seen one of these mobile cranes, 4 wheel or 16 wheel or similar, a lot of them have independant hydraulic stabilizer legs on all four corners of the machine, so this will be very similar basic idea.
over and out...
rob
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