moyno WA series, Руководство по обслуживанию, Страница: 8 / 16

6
13. Slide the head ring (12) over the driveshaft/rotor head flat
side first (side counter-bored for bolts should be facing the
end of the rotor/driveshaft) towards the assembled gear
joint components and driveshaft/rotor gear joint shell (23).
Align holes in head ring (12) with six threaded holes in
end of gear joint shell and install six stainless socket head
screws (O) and hi-collar lock washers (L).
14. Tighten the six socket head screws evenly, checking to
ensure O-ring (15) remains in place. When tightened
properly, a small gap of a few thousandths of an inch may
exist between the shell (23) and gear joint head ring (12).
15. Excess grease in the assembly will be purged from the
vent hole in the gear joint retainer (12) while the socket
head screws are tightened. Rotate the free end of the
connecting rod in a circular motion to assure that the joint
is free and assembled properly. This will also help to
purge excess grease from the assembly.
16. Install the stainless steel pipe plug (P) in the vent hole in
the shell and tighten.
17. Coat the rotor (13) contour with waterless hand cleaner,
glycol, or other lubricant compatible with the stator
elastomer. Insert rotor into stator.
NOTE : To ease
assembly, turn the stator counter-clockwise while
assembling onto the rotor.
18.
For Pump Models 065 / 115 / 175
a. Secure the pump support (5) to the suction housing
(11) with two hex head screws (G), lock washers (H),
and nuts (J).
7-4. Bearing Housing Assembly
Figure 7-4- Bearing Housing Assembly
1. Wipe liberal amount of grease onto tapered roller
bearings (34) and (36)
2. Press thrust roller bearing (36) cone onto
intermediate drive shaft (37) making sure the cone
faces the pin hole end of the driveshaft (Figure 7-4).
Press cone until the cone sits even with the
shoulder on the intermediate drive shaft (37).
3. Place thrust roller bearing (36) cup onto the roller
bearing cone.
4. Place intermediate drive shaft (37) and Roller
bearing assembly into bearing housing (35).
5. Place bearing housing (35), thrust roller bearing (36),
and intermediate drive shaft (37) assembly with the
gear motor flange side down on a press.
6. Fill area in between bearings in the bearing housing
approximately half full of grease.
7. Place radial roller bearing (34) cup into the bearing
housing (35). Press radial roller bearing (34) cone
onto the intermediate drive shaft (37) and into the
bearing housing (35) until the bearing sits even with
the shoulder on the intermediate drive shaft.
8. Thread bearing lock nut (33) on the intermediate drive
shaft (37) and tighten until it rests against the shoulder
on the drive shaft. Install brass tip set screw (Z) in
bearing nut and tighten
9. Install grease seals (32) into bearing housing on each
side of the bearing housing.
7-5. Pumps with Single Mechanical Seal
1.
Carefully slide the rotating portion of the mechanical seal
(28) onto the drive shaft up against the shaft collar (27). If
set collar was removed during disassembly or if the drive
shaft was replaced refer to Section 13-1 for set collar set
dimensions. The seal face should be facing out, away from
the connecting rod (24). Apply a small amount of grease to
the ID of the rubber bellows making it easier to slide onto the
shaft.
2.
Gently push the stationary portion of the mechanical seal (28)
into the recess in the seal housing (30). Place the O-ring (29)
on the shoulder of the seal housing (30).
3.
Slide the seal housing (30) into the bearing housing (35).
4.
Next, carefully slide the rotor, connecting rod, and drive shaft
assembly through the seal stationary face in the seal
housing and over the intermediate drive shaft (37). Align the
holes by rotating the motor fan. Use a punch to align the
holes axially being careful not to damage the mechanical
seal.
5.
Replace the drive pin (25) and slide the slinger ring (31) onto
the shaft over the drive pin (25)
6.
Support the rotating assembly, using wood block or hoist and
slide the suction housing (11) over the assembly.
7. Secure the suction housing (11) to the bearing housing (35)
with four hex head screws (U) and lock washers (Y). Take
care to be sure the o-ring (29) is placed on the seal housing
(30) before assembling.
OR
7-6 Pumps with Compression Packing
1. The standard packing set (28) consists of four braided
packing rings. The lantern ring (35) must be ordered
separately.
2. Wipe a film of lubricant on each packing ring and install two
rings in the packing housing (33). Push each ring firmly in
place, staggering the splits in each ring 90 degrees.
3.
Install the lantern ring and the last two rings of packing,
staggering the splits as before.