Prochem LEGEND GT, Operating Instructions Manual

Page: 45 / 137

43
Maintenance
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 Adjust-
ments” section in this manual for details.
Chemical Pump
Rebuild the chemical pump every 1000 hours . This
involves changing the diaphragm, plastic disk and
check valves.
For the procedure, see the "General Service Adjust-
ments” section in this manual for details.
NOTE: Inspect chemical inlet tube strainer daily.
Chemical and Temperature Control Valves
Examine the packing nuts on all of the valves 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 Adjust-
ments” section in this manual for details.
Pressure Regulator
Lubricate the o-rings and bullet every 50 hours. Use o-
ring lubricant Part #86265430.
For the procedure, see the "General Service Adjust-
ments” section in this manual for details.
Vacuum Hoses
To assure maximum hose life, we recommend that the
hoses be washed out with clean water at the end of
each
working day .
High Pressure Solution Hoses
Inspect your high pressure solution hoses for wear after
the
first 100 hours of use. Inspect every 25 hours
thereafter . If hoses show any signs of damage or
impending rupture, replace the hose .
DO NOT attempt to repair high pressure hoses!
Repairing high pressure solution hoses may result
in severe burns and serious injury!
All high pressure solution hoses must be rated for 3000
PSI at 250°F. Thermoplastic hoses do not meet these
specifications and should not be used. Severe burns
and injury may result if the hoses do not meet these
requirements.
Optional Waste Pump-Out
At the end of each work day , make certain that you
remove any debris or sediment which may be inside the
waste pump by pumping fresh water through the pump.
86313050 LEGEND GT