Moyno pump manual: L3 Drive End

Robbins & Myers service manual for the Moyno L3 drive-end pump, with handwritten notes on the cover about the engine and rotor lengths.

Notes on this document

Summarised from the scan, with short quotations. Machine-assisted; may contain errors.

Handwritten on cover: "5 HP Briggs and Stratton Eng S/N 130202 Model # 001501 [?] Horizontal"; "2L3 Rotor = 13.125 — Standard"; "3L3 Rotor = 18.250 — Heavy Duty"; Robbins & Myers Inc, 2100 Huntington Drive, Fairfield CA 94533.
⇒ the Jetspray pump is a Moyno progressing-cavity pump, L3 frame (2-stage standard, 3-stage heavy duty). Rotor lengths 13.125 in and 18.25 in.
Exploded drawing with 32 numbered parts (bearings, bearing housing, pump support foot, shaft collar, lantern ring, stator support, connecting rod, rotor pin, suction housing, reducer, drive shaft, packing gland, packing, rotor, stator). Full parts list, disassembly/assembly steps, packing & bearing maintenance, water-flush diagram, 1-year R&M warranty.