Trebor 50U Maxim - Manual (Page 19)

MAXIM 50E/U PUMP OPERATION / MAINTENANCE MANUAL PAGE 19
Figure 4-3

Install muffler assembly using the 1” pin tool, torque to 40in-lbs.
4.8.b Body Assembly
 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 th
e 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.