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MEGA 120D PUMP OPERATION / MAINTENANCE MANUAL
4.6 CLEAN-UP
To help remove potentially dangerous chemicals, the pump can be flushed with DI water
or disassembled and thoroughly cleaned.
4.7 DISASSEMBLY
During the life of the pump it will be necessary to perform certain preventative
maintenance procedures to ensure its continued high performance. This section and the
next (4.8
Assembly) are provided for the user’s convenience in disassembly and re-
assembly in performing these procedures.
•
Thoroughly clean/flush the pump using DI water (Refer to Section 4.6 Clean-Up).
•
Remove tie bolt caps from the slave head.
•
Remove nuts from the tie bolts (Slave Head side). Leave tie bolts in place.
•
Lay the pump on its side with slave side up.
•
Lift off the slave head.
•
Remove the main seal and diaphragms.
•
Remove the O-rings from the shuttle transfer tube.
•
Remove the body assembly.
•
Remove the second set of diaphragms and main seal.
•
Remove the transfer tube and O-rings from the heads and body.
•
Remove the remaining tie bolt caps and tie bolts.
NOTE:
All polypropylene and fluoroplastic parts, when disassembled, should be
thoroughly washed and be free from chemical residue for handling purposes.
4.7.a Head Disassembly
•
Remove label cap (Slave Head only).
•
Remove smart pilot cap from master and slave heads.
•
Remove pilot valve and seals from Master and Slave Heads.
•
Remove the shuttle cap and seal from the Master Head.
•
Remove the shuttle spool assembly from the adapter detent.
•
Remove C-ring and detent legs from shuttle spool assembly.
•
Remove Detent Adapter
•
Do not remove
the shuttle sleeve assembly from the shuttle bore.
•
Remove the muffler spool and muffler pads from each head.
•
Remove quick exhaust ports from heads.
•
Remove quick exhaust seals.
•
Remove remote exhaust plugs (if necessary).
