Watts R44-24-1111000 - Manual (Page 25)

MOTOR TROUBLE SHOOTING CHART ( CONTINUED )
TROUBLE CAUSE WHAT TO DO
Unbalanced line current Unequal terminal volts Check leads and connections
on polyphase motors Single phase operation Check for open contacts
during normal operation
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 ½ 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 20 psi.
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. Feed pressure must be at least 20 psi. Consider booster pump.
Pre-filter cartridge clogged. Replace pre-filter cartridge.
Membrane fouled. Determine and correct cause; replace membrane.
Product check valve stuck. Replace check valve fitting.
Low pump discharge pressure Open pump discharge valve, replace pump