Ok I'm a retired professional engineer but a newbie to Backhoes (BHs).
My new to me B7800 has a woods 7500 BH with subframe. In fifiteen minutes I formulated the following opinion:
The stresses exerted by the BH are substancial and are beyond what the standard 3pt was designed to handle. I also believe the extra weight of the subframe helps as well and distributes forces rather than concentrating them on rear member. The instantaneos shock loads alone are enough to convince me ( and my butt) that BH need to be heavy and strong. The twisting moments alone could rip/or bend the 3pt lifting arms. Repeated loads arn't good and would tend toward metal fatigue
IMHO there is no way I'd have a 3pt BH on a B7800!!.
My new to me B7800 has a woods 7500 BH with subframe. In fifiteen minutes I formulated the following opinion:
The stresses exerted by the BH are substancial and are beyond what the standard 3pt was designed to handle. I also believe the extra weight of the subframe helps as well and distributes forces rather than concentrating them on rear member. The instantaneos shock loads alone are enough to convince me ( and my butt) that BH need to be heavy and strong. The twisting moments alone could rip/or bend the 3pt lifting arms. Repeated loads arn't good and would tend toward metal fatigue
IMHO there is no way I'd have a 3pt BH on a B7800!!.
