Tool-less clutch adjustment and removal for drain cleaner

An adjustable clutch assembly (20) comprising:

• a cylindrical sleeve (70) defining a hollow interior aligned with a longitudinal axis (A), wherein at least a portion of the hollow interior of the sleeve (70) includes a circumferential surface defining a threaded region (72);
• a plurality of positionable clutch members (40A, 40B) comprising at least one clutch member (40A) defining a first engagement face (42A) and an associated first ramp region (44A), and at least one other clutch member (40B) defining a second engagement face (42B) and an associated second ramp region (44B), wherein the first and second engagement faces (42A, 42B) are spaced apart;
• a clutch cone (30) defining a cone face (32) oriented to operatively engage one of the first and second ramp regions (44A, 44B), for positioning one of the clutch members (40A, 40B) toward the other one of the clutch members (40A, 40B);
• a cylindrical adjustment member (50) defining a hollow interior (56) aligned with the longitudinal axis (A), wherein an external circumferential surface portion of the cylindrical adjustment member (50) defines a threaded region (58) having threads mating with the threaded region (72) of the cylindrical sleeve (70), wherein rotation of the cylindrical adjustment member (50) in a first direction about the longitudinal axis (A) relative to the sleeve (70) causes the cone face (32) to be urged toward one of the first and second ramp regions (44A, 44B) for operatively positioning the first and second engagement faces (42A, 42B) of the clutch members (40A, 40B) together;
• and
• a locking clamp (85) positionable between a free position at which the cylindrical adjustment member (50) is rotatable about the longitudinal axis (A) relative to the cylindrical sleeve (70) and a locked position at which the cylindrical adjustment member (50) is not rotatable relative to the cylindrical sleeve (70),
• wherein the locking clamp (85) includes a circumferential member (80) surrounding at least a portion of the cylindrical adjustment member (50), wherein the circumferential member (80) defines a first end (82) and a second end (84), and wherein the locking clamp (85) further includes a lever mechanism operatively connected to the circumferential member (80) for urging the first end (82) and the second end (84) together and causing the threaded region (72) of the sleeve (70) to frictionally engage the threaded region (58) of the cylindrical adjustment member (50) at a preselected axial position when the locking clamp (85) is at the locked position.