How do I fill my Modu-Flo grease reservoir?
By using a manual or automatic pump with a coupling that mates to the fill stud at the base of the grease reservoir. The part number for the mating quick disconnect half is 506-322-000. Operate fill pump until all air is expelled from hose and coupler. Connect coupler to fill stud and slowly fill reservoir. Note, for the first time grease filling, or if the grease reservoir has been allowed to go empty, open the petcock in the bottom right side of the reservoir. Slowly begin to fill the reservoir, allowing air trapped under follower to exhaust out the open petcock. When grease free of air flows from the petcock, close petcock and continue to fill the reservoir until follower is at vent hole in reservoir tube (any remaining air and small amount of grease will exit vent).
