Prochem Legend SE AD - Manual (Page 37)

MAINTENANCE
LEGEND SE 980059 07/23/02
4-5
FLOAT VALVE (WATER BOX)
Check the float valve at least once a month for
proper operation. If overfilling is a problem, check
the plunger for a proper seat. Replace tip on plunger
if needed or damaged. Water level in the water box
should be about 5-1/2" to 6”.
For the procedure, see the “General Service
Adjustments” section in this manual for details.
INLET FILTER (TO WATER PUMP)
The filter inside and on the bottom of the water box
is rubber with a stainless steel screen. This should
be inspected and cleaned on a weekly basis.
Replace, if damaged.
NOTE: Vacuum all excess water and debris from
water box prior to removing strainer.
WASTE TANK STRAINER BASKET
The strainer basket located inside the waste tank
should be removed and cleaned whenever it is full of
debris. This should be done on at least a daily
basis.
BYPASS MANIFOLD (STRAINER AND
JET BLOCK)
Check the strainer and the jet weekly. Remove any
debris or blockage.
For the procedure, see the "General Service
Adjustments” section in this manual for details.
Y–STRAINER (OUTLET)
Inspect the Y-strainer after the first week of running
the unit by unscrewing the screen and removing any
accumulated debris. Inspect the strainer again at 2
and 4 weeks.
The Y-strainer should then be inspected every
month. However, if the Y-strainer has a frequent
build-up of debris it should be inspected and cleaned
more often.
CHECK VALVE (OUTLET)
Inspect the check valve when rebuilding the
chemical pump or as needed. Remove and
disassemble the check valve. Check the Teflon seat
for debris or abnormal wear. Clean or replace seat if
needed.
NOTE: Improper seating of the check valve
poppet, damaged spring, or o-rings will cause
poor operation of the chemical system.
For the procedure, see the "General Service
Adjustments” section in this manual for details.
CHEMICAL PUMP
Rebuild the chemical pump every 1000 hours. This
involves changing the diaphragm and check valves.
For the procedure, see the "General Service
Adjustments” section in this manual for details.
CHEMICAL AND HEAT BYPASS VALVES
Examine the packing nut on the chemical selector
valve, heat bypass valve, and chemical metering
valve every 200 hours. Keeping these valve
packings properly adjusted will eliminate possible
leakage from the valve stems and add to overall
valve life.
For the procedure, see the "General Service
Adjustments” section in this manual for details.