2-70. CHEMICAL METERING PUMP REPLACEMENT/REPAIR (CONT)
b. Pump Removal
To prevent electric shock, make sure that pretreatment assembly power cable is unplugged.
Procedure for replacement of both pumps is the same.
Unplug pretreatment assembly power cable.
Unscrew two clamping nuts. Remove two tubes from valves on rear of pump.
Remove pump cable from all clamps.
Tag and disconnect wires in electrical enclosure.
Remove two nuts, mounting screws, and flatwashers from pedestal. Remove pump.
If replacing pump, go to subpara e.