ZEP 212 CD, Руководство по обслуживанию

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1
Troubleshooting
Oil has not been changed on
regular basis.
Check oil type and change intervals per PUMP
SPECIFICATIONS.
Short seal life Damaged plunger bushing. Replace plunger bushing.
Worn connecting rod. Replace connecting rod.
Excess pressure beyond the
pump’s maximum rating.
Match pressure stated in PUMP SPECIFICATIONS.
High water temperature. Lower water temperature stated in PUMP
SPECIFICATIONS.
Dirty or worn check
valves
Normal wear. Remove and replace.
Debris. Check for lack of water inlet screens.
Presence of metal
particles during oil
change
Failure of internal component. Remove and disassemble to find probable cause.
New pump. New pumps have machine fillings and debris
and should be drained and refilled per PUMP
SPECIFICATIONS.
Water leakage from
under head
Worn packing. Install new packing.
Cracked/scored plunger. Remove and replace plunger.
Failure of plunger retainer o-ring. Remove and replace plunger retainer o-ring.
Loud knocking noise in
pump
Pulley loose on crankshaft. Check key and tighten set screw.
Defective bearing. Remove and replace bearing.
Worn connecting rod, crankshaft,
or crosshead.
Remove and replace.
Frequent or premature
failure of the packing
Scored, damaged, or worn plunger. Remove and replace plungers.
Overpressure to inlet manifold. Reduce inlet pressure.
Abrasive material in the fluid being
pumped.
Install proper filtration on pump inlet pumping.
Excessive pressure and/or
temperature of fluid being pumped.
Check pressures and fluid inlet temperature. Be sure
they are within specified range.
Over pressure of pumps. Reduce pressure.
Running pump dry. Do not run pump without water.
Low Pressure Dirty or worn check valves. Clean/replace check valves.