Zenith C-30HDG manual 30HDG Pump Operating Information, Cam Roller, Snap-Joint

C-30HDG PUMP — OPERATING INFORMATION

Cam Roller

If the cam roller does not ride on the cam profile smoothly, it may be caused by insufficient line back-pressure; e.g., a wet mix with only 50 feet of hose.Add more hose as necessary.It can also be caused by cavitation or the passing of over-sized aggregates through the valving, causing it to skip.

Snap-Joint

When using Snap-Joint couplings with gaskets to join hose, see thattheyarewashedcleanaftereachjob.Keepingthehoseends clean (heavy duty) is very important for the best job setup.A thin coat of grease on the rubber gasket or dipping both coupling and gasket in water before coupling the hose will make for easier installation.

MAYCO C-30HDG PUMP — OPERATION AND PARTS MANUAL — REV. #6 (04/02/12) — PAGE 33