A fluid delivery system (100; 300; 400; 500; 600; 700) comprising: - a motor assembly (102; 302; 402; 502; 602; 702); - a fluid pump assembly (104; 304; 404; 504; 604; 704) spaced apart from the motor assembly (102; 302; 402; 502; 602; 702), wherein at least one of the motor assembly (102; 302; 402; 502; 602; 702) or the fluid pump assembly (104; 304; 404; 504; 604; 704) is moveable to change a distance between the motor assembly (102; 302; 402; 502; 602; 702)and the fluid pump assembly (104; 304; 404; 504; 604; 704); - a flexible linkage (106; 306; 706) that couples the motor assembly (102; 302; 402; 502; 602; 702) to the fluid pump assembly (104; 304; 404; 504; 604; 704) and is configured to transfer motion from the motor assembly (102; 302; 402; 502; 602; 702) to the fluid pump assembly (104; 304; 404; 504; 604; 704); and - a linkage tightening mechanism (108; 308; 408; 508; 608; 708) configured to generate a tightening force on the flexible linkage (106; 306; 706), - wherein the flexible linkage (106; 306; 706) comprises a drive belt, - wherein the linkage tightening mechanism (108; 308; 408; 508; 608; 708) comprises a set of parallel supports (301-1, 301-2; 401-1, 401-2; 501-1, 501-2; 601-1, 601-2; 701-1, 701-2) and - wherein the tightening force is generated by biasing at least one of the motor assembly (102; 302; 402; 502; 602; 702) or the fluid pump assembly (104; 304; 404; 504; 604; 704) in a direction that increases the distance between the motor assembly (102; 302; 402; 502; 602; 702) and the fluid pump assembly (104; 304; 404; 504; 604; 704), characterized in - that each support (301-1, 301-2; 401-1, 401-2; 501-1, 501-2; 601-1, 601-2; 701-1, 701-2) comprises a tube (307-1, 307-2; 407-1, 407-2; 507-1, 507-2; 607-1, 607-2; 707-1, 707-2) that receives a spring (312-1, 312-2; 412-1, 412-2; 512-1, 512-2; 612-1, 612-2) therein, - wherein each support (301-1, 301-2; 401-1, 401-2; 501-1, 501-2; 601-1, 601-2; 701-1, 701-2) comprises a plunger (314-1, 314-2; 414-1, 414-2, 514-1, 514-2; 614-1, 614-2) insertable into a corresponding one of the tubes (307-1, 307-2; 407-1, 407-2; 507-1, 507-2; 607-1, 607-2; 707-1, 707-2) and wherein the motor assembly (102; 302; 402; 502; 602; 702) is coupled to the plungers (314-1, 314-2; 414-1, 414-2, 514-1, 514-2; 614-1, 614-2), - wherein each plunger (314-1, 314-2; 414-1, 414-2, 514-1, 514-2; 614-1, 614-2) engages the corresponding tube (307-1, 307-2; 407-1, 407-2; 507-1, 507-2; 607-1, 607-2; 707-1, 707-2) such that the motor assembly (102; 302; 402; 502; 602; 702) is slidably movable with respect to the fluid pump assembly (104; 304; 404; 504; 604; 704), - wherein the fluid delivery system comprises a paint spraying system and - wherein the paint spraying system comprises a cart. - a motor assembly (102; 302; 402; 502; 602; 702); - a fluid pump assembly (104; 304; 404; 504; 604; 704) spaced apart from the motor assembly (102; 302; 402; 502; 602; 702), wherein at least one of the motor assembly (102; 302; 402; 502; 602; 702) or the fluid pump assembly (104; 304; 404; 504; 604; 704) is moveable to change a distance between the motor assembly (102; 302; 402; 502; 602; 702)and the fluid pump assembly (104; 304; 404; 504; 604; 704); - a flexible linkage (106; 306; 706) that couples the motor assembly (102; 302; 402; 502; 602; 702) to the fluid pump assembly (104; 304; 404; 504; 604; 704) and is configured to transfer motion from the motor assembly (102; 302; 402; 502; 602; 702) to the fluid pump assembly (104; 304; 404; 504; 604; 704); and - a linkage tightening mechanism (108; 308; 408; 508; 608; 708) configured to generate a tightening force on the flexible linkage (106; 306; 706), - wherein the flexible linkage (106; 306; 706) comprises a drive belt, - wherein the linkage tightening mechanism (108; 308; 408; 508; 608; 708) comprises a set of parallel supports (301-1, 301-2; 401-1, 401-2; 501-1, 501-2; 601-1, 601-2; 701-1, 701-2) and - wherein the tightening force is generated by biasing at least one of the motor assembly (102; 302; 402; 502; 602; 702) or the fluid pump assembly (104; 304; 404; 504; 604; 704) in a direction that increases the distance between the motor assembly (102; 302; 402; 502; 602; 702) and the fluid pump assembly (104; 304; 404; 504; 604; 704), - that each support (301-1, 301-2; 401-1, 401-2; 501-1, 501-2; 601-1, 601-2; 701-1, 701-2) comprises a tube (307-1, 307-2; 407-1, 407-2; 507-1, 507-2; 607-1, 607-2; 707-1, 707-2) that receives a spring (312-1, 312-2; 412-1, 412-2; 512-1, 512-2; 612-1, 612-2) therein, - wherein each support (301-1, 301-2; 401-1, 401-2; 501-1, 501-2; 601-1, 601-2; 701-1, 701-2) comprises a plunger (314-1, 314-2; 414-1, 414-2, 514-1, 514-2; 614-1, 614-2) insertable into a corresponding one of the tubes (307-1, 307-2; 407-1, 407-2; 507-1, 507-2; 607-1, 607-2; 707-1, 707-2) and wherein the motor assembly (102; 302; 402; 502; 602; 702) is coupled to the plungers (314-1, 314-2; 414-1, 414-2, 514-1, 514-2; 614-1, 614-2), - wherein each plunger (314-1, 314-2; 414-1, 414-2, 514-1, 514-2; 614-1, 614-2) engages the corresponding tube (307-1, 307-2; 407-1, 407-2; 507-1, 507-2; 607-1, 607-2; 707-1, 707-2) such that the motor assembly (102; 302; 402; 502; 602; 702) is slidably movable with respect to the fluid pump assembly (104; 304; 404; 504; 604; 704), - wherein the fluid delivery system comprises a paint spraying system and - wherein the paint spraying system comprises a cart.