Trebor 55E EVOLVE - Manual (Page 19)

EVOLVE 55E PUMP OPERATION / MAINTENANCE MANUAL PAGE 19
CAUTION: Following disassembly, parts should be thoroughly washed to be free
from chemical residue for handling purposes.
4.7.b Body Disassembly

Unscrew push plate from the shaft in a counter-clockwise direction. Pull other push plate
and shaft from pump body.
 Remove suction plugs and seal on bottom of pump body using 1” pin tool.
 Remove suction seat using 1” pin tool.

Remove ball and O-ring.
 Unscrew suction check using 1” pin tool turning it counter-clockwise.

Remove second set of O-rings and balls and pull out discharge check cage.

Remove shaft seals from pump shaft seal groove in the center of the shaft bore using
the tip of a razor knife. Take care not to damage the shaft bore. NOTE: Do not reuse
seals.
 Remove damper plug and seal using 3/4” pin tool.
4.7.c Control Base Disassembly

Unlock control base from quick-change mount by pulling out lever on front of base to
unlock mount. Then slide base back until it stops. Lift base off mount.

Using pH test strips evaluate whether base has any contamination in air passages,
especially the muffler area. If present, neutralize using best methods prior to
disassembly.

Unscrew and loosen Jaco nut until transfer tubes can be removed. Do not remove the
Jaco fitting from the base unless the fitting is damaged.

Unscrew and remove muffler assemblies
from base using the 1”pin tool.
 Remove the quick exhaust port using the 1/2” pin tool.

Remove the quick exhaust seal. If needed, apply low-pressure air to each air supply port
to aid in seal removal.
4.7.d Pump Cleaning

Gently spray clean with DI water, or rinse by dunking all components in DI water, to
remove any trace materials remaining after disassembly.
4.8 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.