Watts Pure Water PWR4021 Series, Инструкция по установке, эксплуатации и обслуживанию

Страница: 28 / 32

28
MOTOR TROUBLE SHOOTING CHART (CONTINUED)
TROUBLE CAUSE WHAT TO DO
Unbalanced line current on polyphase
motors during normal operation
Unequal terminal volts Check leads and connections
Single phase operation Check for open contacts
Scraping noise Fan rubbing air shield Remove interference.
Fan striking insulation Clear fan.
Loose on bedplate Tighten holding bolts.
Noisy operation Airgap not uniform Check and correct bracket fits or bearing.
Rotor unbalance Rebalance.
Hot bearings general Bent or sprung shaft Straighten or replace shaft.
Excessive belt pull Decrease belt tension.
Pulleys too far away Move pulley closer to motor bearing.
Pulley diameter too small Use larger pulleys.
Misalignment Correct by realignment of drive.
Hot bearings ball Insufficient grease Maintain proper quantity of grease in bearing.
Deterioration of grease, or lubricant contaminated Remove old grease, wash bearings thoroughly in kerosene and replace with new grease.
Excess lubricant Reduce quantity of grease: bearing should not be more than 1/2 filled.
Overloaded bearing Check alignment, side and end thrust.
Broken ball or rough races Replace bearing: first clean housing thoroughly.
These instructions do not cover all details or variations in equipment nor provide for every possible condition to be met in connection with installation, operation or maintenance. Chart courtesy
of Marathon Electric.
RO SYSTEM TROUBLE SHOOTING
PROBLEM REMEDY
General
High Product Water TDS
Membrane expanded. Replace membrane.
Membrane attack by chlorine Carbon pre-filter may be exhausted. Replace with a new cartridge.
Clogged pre-filter-creates pressure drop and low reject flow. Replace pre-filter cartridge.
Feed pressure too low. Feed pressure must be at least 20psi.
Insufficiently flushed post-filter cartridge. Flush post-filter with pure water.
Brine seal on membrane leaks. Determine if seal or o-ring is bad. Replace as needed.
No Product Water or Not Enough Product Water
Feed water shut off. Turn on feed water.
Low feed pressure. Consider booster pump.
Feed pressure must be at least 20psi. Replace pre-filter cartridge.
Pre-filter cartridge clogged. Determine and correct cause; replace membrane.
Membrane fouled. Product check valve stuck. Replace check valve fitting.
Low pump discharge pressure Open pump discharge valve, replace pump