Prochem Legend SE AD - Manual (Page 39)

MAINTENANCE
LEGEND SE 980059 07/23/02
4-7
VACUUM EXHAUST HEAT EXCHANGER
1. Cleaning the vacuum exhaust pre-heater core is
recommended as needed or if the unit was
operated with the vacuum inlet filter damaged,
removed, or improperly installed. Pull out the
core and remove all debris, being careful not to
drive debris deeper into the core. We
recommend removing the debris with water by
either submerging the core and moving it back
and forth until the debris loosens and falls off or
by spraying the debris out of the core. Allow the
core to dry before reinstalling.
2. Remove and inspect the vacuum exhaust pre-
heater core every 200 hours.
HIGH PRESSURE HOSES
Inspect your high pressure 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 hoses may result in
severe burns and serious injury!
All high pressure 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.
Remove the waste pump unit from the waste tank
and clean inside the screen at least once a week,
or more frequently if required.
TEMPERATURE PROBE PACKING
Examine the temperature packing assembly for
leaks every 200 hours. Tighten the packing nut
fitting just enough to stop leaks. DO NOT over-
tighten.
For the procedure, see the “General Service
Adjustments” section in this manual.