A surgical instrument, comprising: (a) a body; (b) an ultrasonic blade extending distally from the body, wherein the ultrasonic blade is operable to apply ultrasonic energy to tissue; (c) a clamp arm, wherein the clamp arm is operable to compress tissue against the ultrasonic blade; and (d) a pivot assembly, wherein the clamp arm is pivotably coupled to the body at the pivot assembly, wherein the pivot assembly comprises: (i) a first link, wherein the first link is pivotably coupled with the body at a first pivot, and (ii) a second link, wherein the clamp arm is secured to the second link, wherein the second link is distal to the first link, wherein the second link is pivotably coupled with the first link at a second pivot, wherein the second pivot is distal to the first pivot, wherein the second link is further pivotably coupled with the body at a third pivot, wherein the third pivot is distal to the second pivot, wherein the first link has a distal portion and a proximal portion, wherein the first and second pivots are located at the distal portion, wherein the proximal portion includes a grip feature configured to be engaged by an operator to thereby drive the proximal portion toward the body, characterized in that the pivot assembly is configured to be attachable and detachable from the body, and in that the body comprises a pair of arcuate channels, and in that the first link comprises a pair of protrusions positioned to enter the pair of arcuate channels when the first link is rotated towards the body. (a) a body; (b) an ultrasonic blade extending distally from the body, wherein the ultrasonic blade is operable to apply ultrasonic energy to tissue; (c) a clamp arm, wherein the clamp arm is operable to compress tissue against the ultrasonic blade; and (d) a pivot assembly, wherein the clamp arm is pivotably coupled to the body at the pivot assembly, wherein the pivot assembly comprises: (i) a first link, wherein the first link is pivotably coupled with the body at a first pivot, and (ii) a second link, wherein the clamp arm is secured to the second link, wherein the second link is distal to the first link, wherein the second link is pivotably coupled with the first link at a second pivot, wherein the second pivot is distal to the first pivot, wherein the second link is further pivotably coupled with the body at a third pivot, wherein the third pivot is distal to the second pivot, wherein the first link has a distal portion and a proximal portion, wherein the first and second pivots are located at the distal portion, wherein the proximal portion includes a grip feature configured to be engaged by an operator to thereby drive the proximal portion toward the body, characterized in that the pivot assembly is configured to be attachable and detachable from the body, and in that the body comprises a pair of arcuate channels, and in that the first link comprises a pair of protrusions positioned to enter the pair of arcuate channels when the first link is rotated towards the body. (i) a first link, wherein the first link is pivotably coupled with the body at a first pivot, and (ii) a second link, wherein the clamp arm is secured to the second link, wherein the second link is distal to the first link, wherein the second link is pivotably coupled with the first link at a second pivot, wherein the second pivot is distal to the first pivot, wherein the second link is further pivotably coupled with the body at a third pivot, wherein the third pivot is distal to the second pivot,