Instruction Manual

PAGE 22 MAGNUM 620E PUMP OPERATION / MAINTENANCE MANUAL
4.7.b Body Disassembly
 Unscrew push plate locking screw and push plate from one side of the shaft.
 Remove shaft from pump body.
 Unscrew second push plate locking screw and push plate.
 Remove shaft seals from pump shaft seal groove in the center of the shaft
bore. Take care not to damage the shaft bore. NOTE: Do not reuse seals.
 Remove check plugs and seals on top of pump body using 3/4” pin tool.
 Remove discharge sleeves using check sleeves removal tool.
 Remove PTFE balls and O-rings.
 Remove suction sleeves using check sleeve removal tool.
 Remove second set of O-rings and balls.
 Remove damper plug and seal using 3/4” pin tool.
4.8 CLEANING
ATTENTION: Following disassembly, parts should be thoroughly washed and be
free from chemical residue for handling purposes.
 Gently spray clean or dunk rinse all components with DI water to remove any
trace materials remaining after disassembly.
4.9 ASSEMBLY
Prior to beginning assembly, inspect all parts to ensure they are clean and dry.
Wear clean protective gloves. Precautions should be exercised to prevent
contaminating any of the air chamber surfaces with chemicals during handling.
4.9.a Body Assembly
NOTE: Check sleeves that do not install with ease or minimal effort should be
placed in a freezer prior to assembly to assist insertion. Body must be upside
down with check port extending over a table edge so that parts remain
assembled during insertion of sleeves.