Disassembly, Inspection & Reassembly
64
236 Series
Twin-Screw Pump -
Installation, Operation, and Maintenance Manual
Cartridge mechanical seal replacement
Cartridge-type mechanical seals should be serviced by the seal manufacturer. Refer to the
instructions from the mechanical seal manufacturer for assistance.
Coupling guard replacement
Repair or replace the coupling guard if you notice corrosion or other defects.
Gaskets, O-rings, and seats replacement
WARNING:
Risk of death or serious injury. Leaking fluid can cause fire and/or burns. Replace all gaskets
and O-rings at each overhaul or disassembly. Inspect all gasket and O-ring sealing surfaces
for damage and repair or replace as necessary.
Fasteners
WARNING:
Risk of serious personal injury or property damage. Fasteners such as bolts and nuts are
critical to the safe and reliable operation of the product. Ensure appropriate use of fasteners
during installation or reassembly of the unit.
•
Use fasteners of the proper size and material only.
•
Replace all damaged or corroded fasteners.
•
Ensure that all fasteners are properly tightened and that there are no missing fasteners.
Additional parts
Inspect and either repair or replace all other parts, if inspection indicates continued use would
be harmful to satisfactory and safe pump operation. Inspection must include these items:
•
Gear housing (406) and bearing housings (401) (407)
•
Oil seals (704) (721)
•
Bearing locknut (110)
•
Coupling key (133)
•
All nuts, bolts, dowels and screws
