Trebor 55E EVOLVE - Manual (Page 21)

EVOLVE 55E PUMP OPERATION / MAINTENANCE MANUAL PAGE 21
 Install seal and damper plug into body using 3/4” pin tool, torque to 50in-lbs.

Remove pump from assembly fixture.

Turn pump upside down to access check bores.

Install discharge check cage into bore making sure small end fits into relief in bottom of
bore.

Drop ball into check cage, then O-ring.
 Install suction sleeve into the bore; tighten using 1” pin tool. Tighten until engagement
with O-ring is achieved, then unthread the sleeve a quarter turn. Do not over tighten as
damage may occur.

Install second ball into check cage, then O-ring.
 Install suction seat using the 1” pin tool. Tighten until engagement with O-ring is
achieved, then unthread the seat a quarter turn.

Install
check seal onto check bore shoulder and thread suction plug into bore using 1”
pin tool, torque to 60in-lbs.

Repeat for the second bore.

Install two shaft seals in shaft bore groove with slits 180° apart.

Thread push plate onto main shaft until engagement with the shaft shoulder is achieved.
Additionally apply a ¼” turn to ensure proper installation.

Thread shaft onto shaft insert tool and insert shaft into bore. See Figure 4-5. This
prevents damage to the TFE shaft seals and prevents dislodgement of shaft seals.
Figure 4-5: Shaft Insert Diagram with Tool

Remove shaft insert tool and thread second push plate until engagement with the shaft
shoulder is achieved. Again, apply a ¼” turn to ensure proper installation.