8
1. Using a suitable torque wrench, install fastener in mating piece until Nylok insert is
completely engaged. Note torque required.
2. Add torque measured in step1 to torque value for pump size in torque table, Chart 1.
3. Complete tightening fastener to torque value determined in 2.
1. Install O-ring (28) in groove of housing (24).
2. Install housing (24) in pump case (1), from suction end of case, aligning groove in
housing (24) to stop pin hole in case (1). Install stop pin (6) with Dyna Seal (7) in case
(1).
3. Install housing snap rings (8) in case (1).
4. Install balance piston (79) on inboard cover (46). Install idler stop (22) on inboard cover
(46) with cap screws (81). Torque bolts to proper value for pump size in torque table,
Chart 1. Install O-ring (28 or 9) on inboard cover (46).
5 Install inboard cover (46) on case (1) using bolts (4). Be sure seal return (70) is facing
up. Torque bolts to proper value for pump size in torque table, Chart 1.
6. Assemble power rotor (63) and mechanical seal (25) as follows (see seal insert,
Figure
2)
a. Install O-ring in groove of mechanical seal (25) stationary seat. Install mechanical
seal stationary seat in seal seat adapter (48) ensuring that spring pin is properly
positioned to engage slot in seal seat.
b. Install spacer (38) on power rotor (63) when required.
c. Install mechanical seal (25) rotating assembly on power rotor next to spacer (38).
Tighten set screws.
d. Wipe mechanical seal rotating and stationary faces with a clean, lint free cloth before
assembling faces together.
e. Install assembled bearing spacer (48), with stationary seat to power rotor shaft next
to mechanical seal rotating face.
f. Install inner Truarc ring (42) in groove of power rotor (63).
g. Press bearing (49) on power rotor (63), pressing only on inner race of ball bearing
(49) until it is located next to inner Truarc ring (42).
h. Install outer Truarc ring (42) in groove of power rotor (63).
7. Install O-ring (83) in seal bore of inboard cover (46).
8. Install assembled power rotor (63) in pump, centering all parts as they enter inboard
cover (46). Align one of openings in seal seat adapter (48) over drain in inboard cover
(46).
9. Install bearing retainer (43) on inboard cover (46) using bolts (47). Torque bolts to
proper value for pump size in torque table. Chart 1.