Labconco Glassware Washer Service/Technical Manual
55
the unit has a BLUE 230V valve and the unit is running on 208V, call Labconco
for the Engineering Upgrade (Gold valve).
1.
Remove the right side service panel (or right side Panel if Free
Standing) and the Toe/Kick Panels. See
Removing the Toe/Kick Panels
and Service Panels
and/or
Removing the Washer’s Paneling.
2.
Locate the Drain Solenoid valve.
3.
Loosen and remove the hose clamp on the “Drain Pump Inlet Tube” at the
Drain Pump. (This will give you more room to remove the clamp below)
4.
Loosen and remove the hose clamp on the back side of the Valve going
to the “Wash Pump Outlet Tube”
5.
Remove the nuts that secure the Drain Valve to the base weldment.
6.
Remove the Drain valve.
7.
Seat the new drain valve over the studs in the base weldment.
8.
Tighten down the nuts that secure the Drain Valve to the base
weldment.
9.
Place the drain valve side of the “Wash Pump Outlet Tube” onto the
valve. Position and tighten down the hose clamp.
10.
Reconnect the “Drain Pump Inlet Tube” on the Drain Pump and tighten
the hose clamp.
Replacing the Drain Pump
The drain pump is responsible for draining the tank and sump after a wash or
rinse cycle. The pump is located behind the electrical board in the front
right corner of the machine. The best way to access this pump is by removing
the relay board/electrical panel and the right side service access panel.
1.
Remove access paneling.
2.
Locate the Drain Pump.
3.
Loosen and remove the clamp on the Drain Pump Inlet Hose at the Drain
Pump.
4.
Loosen and remove the hose clamp on the Drain Tube.
5.
Remove the nuts that secure the Drain Pump to the base weldment.
6.
Remove the Drain Pump.
Figure 29
Left:
Drain System. The Drain
system is made up of the Wash
Pump Outlet Elbow, the Drain
Solenoid Valve, the Drain Pump
Inlet Tube, the Drain Pump, and the
Drain Hose. The top leg of the
Wash Pump Outlet Elbow is secured
to the Sump.
The Wash Pump Outlet Elbow is
highlighted in
Blue.
During
DRAIN, the water moves through
this tube through the Drain Solenoid,
Orange Box,
and into the Drain
Pump Inlet Tube (
Magenta Box)
.
When the unit goes to DRAIN, the
Valve will “pop” open and three
seconds later the Drain Pump, in the
Green Box
. The pump does not self-
prime, and utilized the water left
over in the Drain Hose’s high loop
to prime.
Artisan Scientific - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisan-scientific.com
