Trebor REV6 - Manual (Page 30)

REV6 OPERATION / MAINTENANCE MANUAL CONTENTS
6.2.2 Instructions for Replacement
1. Power down the pump system and remove the
AC power. If necessary, allow the motor housing
to cool down to a workable temperature.
2. Unscrew and remove the union nut. Trebor
provides a tool (T0180 - Tool; Union Nut;
Socket; Rev6) to loosen the union nut or a strap
wrench may be used.
3. Loosen the fluid port adapter enough to insert
the Impeller Removal Tool. Use the tool to pull
the inlet housing and main seal o-ring from the
pump casing.
4. Gently slide the nose of the Impeller Removal
Tool into the center hole of the impeller.
Squeeze the handle of the tool and pull the
impeller from the pump casing.
5. Inspect the wet area of the pump head carefully.
In case of material damage, replace the pump
casing and inlet housing.
6. Place the new impeller into the pump casing
using the Impeller Removal Tool
7. If necessary, remove the existing O-Ring and
gently press the new O-Ring into the shoulder of
the inlet housing.
CAUTION
Use the correct O-Ring type for your process. If
necessary, consult your Trebor representative.
Do NOT twist or roll the O-Ring as this may cause leaking
to occur.
8. Align the tabs on the inlet housing with the slots
in the pump casing. Press the inlet housing into
the pump casing. Ensure the housing is fully
seated in the casing. The top edge of the inlet
housing should be ~2.5mm (0.1in) above the
casing when fully seated.
9. Carefully tighten the union nut. Tighten by hand
until the union nut is flush with the surface of the
inlet housing. Add an additional 1/8 turn or 8-9
Nm (70-80 in-lbs.) of torque.
10. Start up the system and check if the impeller is
rotating properly and the pump head does not
leak.
11. If the pump head leaks, inspect that the housing
and o-ring are properly pressed into the bottom
of the pump casing. If the o-ring has been
damages, it may be necessary to replace it.