9
IMPORTANT! - DO NOT hammer on the seal
pusher- it will damage the seal face.
Make sure the stationary member is in straight. Slide
a bullet (see parts list - seal tool kit) over motor shaft. Lightly
oil
(DO NOT use grease)
shaft, bullet and inner surface of
bellows on rotating member (28b) see Figure 7. With lapped
surface of rotating member (28b) facing inward toward
stationary member, slide rotating member over bullet and
onto shaft, using seal pusher, until lapped faces of (28a) and
(28b) are together (see Figure 7).
It is extremely important to keep seal faces clean during
assembly. Dirt particles lodged between these faces will
cause the seal to leak. Place spring (28c) over shaft and in
place on rotating member (28b), making sure it is seated
on retainer and not cocked or resting on bellows tail. Slide
retaining ring (28d) over shaft and let rest on spring (28c).
Replace snap ring (32) in groove of shaft. Set square-ring
(18) in groove on outer seal plate (14) and place outer seal
plate (19) onto inner seal plate (14). Replace socket head cap
screws (29) and torque to 60 in-lbs. See Figure 5 & 13.
Outer Seal (All Units)-
Press stationary member (28a) fi rmly
into outer seal plate (14 on DS Units) as described above.
Slide rotating member (28b) onto stationary member using
seal pusher as described above. Place spring (28c) and
retaining ring (28d) onto rotating member (28b). Assemble
impeller and volute as outlined in paragraph F-2.2. Replace
oil as outlined in paragraph F-1.4.
F-4) Motor and Bearing Service
F-4.1) Disassembly and Inspection:
To examine or replace the motor (7), capacitor (9, single phase
units), controls (55, 56, optional), and bearing (16), drain oil
from motor as outlined in paragraph F-1.1. Disassemble volute
and impeller as outlined in paragraph F-2.1 and disassemble
shaft seal as outlined in paragraph F-3.1.
Position unit upright, using blocks to avoid resting unit on shaft.
Unscrew cable hex bolts (11) and remove compression fl ange
and power cord (16). Remove snap ring (19) with a fl at head
screwdriver. Pull the terminal block (35) out of the housing (1)
using a T-bolt or pair of pliers and a .25-20 screw in the threads
of the terminal block (21). Be sure to leave slack on the motor
leads connected underneath. Use needle nose pliers to pull
each female connector off of the pins on the underside of the
terminal block (35). The unit voltage should be noted. Repeat
cable and terminal block removal procedure for any control
cables (56) if equipped. Remove socket head cap screws
(47). Vertically lift the motor housing (6) from seal plate (5)
by lifting handle (21). Inspect square ring (27) for damage or
cuts. Remove the motor bolts and lift motor stator from seal
plate (5). Disconnect capacitor leads from capacitor (9, single
phase units). Examine bearing (25) and replace if required. If
replacement is required, remove bearing (16) from motor shaft
using a wheel puller or arbor press, see Figure 9.
Check motor capacitor (9, single phase units) with an Ohm
meter by fi rst grounding the capacitor by placing a screwdriver
across both terminals and then removing screwdriver. Connect
Ohm meter (set on high scale) to terminals. If needle moves
to infi nity (∞) then drifts back, the capacitor is good. If needle
does not move or moves to infi nity (∞) and does not drift back,
replace capacitor (7). To test the fl oat switch (55 or 56 optional),
check for continuity between the pin receptacles of the cord
with the fl oat in an “up” position. There should be no continuity
with the switch in the “down” position. Replace switch (55
or 56) if malfunctioning. If moisture sensors (4, optional) are
damaged, disconnect leads by removing machine screws (45)
and washers (46) from probes (4). Remove probes (4) from
seal plate (5). To test the temperature sensor (50, optional),
check for continuity between the black and white wires. If
found to be defective, contact a motor service station or Barnes
Pumps Service department. Inspect motor winding for shorts
and check resistance values. Check rotor for wear. If rotor or
the stator windings are defective, the complete motor must be
replaced.
IMPORTANT! - All parts must be clean before
reassembly.
FIGURE 5
Stationary Member
(28A) Polished Face Out
Seal Pusher
Seal Plate (5) for L series
and (29) for DS series
FIGURE 6
Motor & Seal Plate
Bullet
Rotating Member
(28B)
Seal Pusher
FIGURE 7
Содержание Barnes SED Series
Страница 12: ...12 FIGURE 12 ...
Страница 14: ...14 FIGURE 13 Series SED ...
