Sun-pumps SPB 10-16C-1.0 User Manual

SUNPUMPS SPB-SERIES PISTON PUMP SERVICE MANUAL Caution: Piston pumps are positive displacement pumps. Therefore, a properly designed pressure RELIEF

DIAGNOSIS AND MAINTENANCE PROBLEM PROBABLE CAUSE SOLUTION_____________ Pulsation *Faulty Pulsation Dampener

o-ring, or drain plug o-ring Oil leakage from drain plug *Loose drain plug or worn drain plug o-r

An Unloader or Relief Valve must be installed to prevent over pressurizing the pump in the event the discharge or downstream plumbing becomes plugged

retainer. 3. Inspect the Valves for wear, ridges or pitting and replace as needed. Note: Seating side of Flat Valves may be lapped on flat su

If extreme pitting or sharp edges, replace piston. 3. Examine cup for wear, cracking, tearing or separation from the piston. If worn replace and lu

your palm as the cylinder assembly is installed. Use the spring to hold parts in cylinder as it is slid over piston rod. 4. Remove spring from cylin

9. Replace original quantity of shims on each stud before replacing discharge manifold. SERVICING CRANKCASE SECTION 1. While inlet manifold sleev

INLET SUPPLY should be adequate to accommodate the maximum flow being delivered by the pump. Open inlet shut-off valve and turn on water supply to

HOSE FRICTION LOSS Pressure drop in PSI per 100 ft of hose Water with typical wat

RESISTANCE OF VALVES AND FITTINGS Nominal Equivalent Length of Standard Pipe in Feet Pipe Inside