Crane STEP1042L, Инструкция по установке и эксплуатации

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Place spring (10c) over shaft and in place on rotating member
(10b), making sure it is seated on retainer and not cocked or
resting on bellows tail. Slide retaining ring (10d) over shaft
and let rest on spring (10c). Replace retaining ring (11) onto
shaft. Set square-ring (7) in groove on intermediate coupling
(9) and lower seal plate (12) onto intermediate coupling (9).
Insert socket head cap screws (8) and (38) and torque to 60
inch pounds. Repeat insertion of seal for outer seal.
Assemble impeller and volute as outlined in paragraph F-2.2.
Replace oil as outlined in paragraph F-1.3.
F-4) Motor and Bearing Service
F-4.1) Disassembly and Inspection:
To examine or replace the motor (4), capacitor (2) and
bearing (23), disassemble volute and impeller as outlined in
paragraph F-2.1 and disassemble shaft seals as outlined in
paragraph F-3.1. Drain oil from motor and seal cavity as
outlined in paragraph F-1.3.
Remove gland nut (29b), friction rings (29c) and grommet
(29d) from motor housing (5). See Figure 8. Position unit
upright, using blocks to avoid resting unit on shaft. Vertically
lift motor housing (5) from intermediate coupling (9). Inspect
square-ring (7) for damage or cuts. Remove cable assembly
(29) by disconnecting connectors (27) and ground screw (26)
from motor (4). If pump is equipped with moisture sensors,
disconnect connectors (27) from wires (38). Disconnect
capacitor leads and terminal insulators (28) from capacitor.
Remove motor bolts and lift motor stator from intermediate
coupling (9). To remove ball bearing (23) loosen conduit
bushing (6) and pull motor shaft and ball bearing from
intermediate coupling (9). Examine bearing (23) and replace
if required. If replacement is required, remove bearing (23)
from motor shaft using a wheel puller or arbor press. Inspect
motor windings for shorts and check resistance values.
Check rotor for wear. If rotor or stator windings are defective
the complete motor must be replaced. Check motor capacitor
(2) with an Ohm meter by first 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 infinity (
∞ ) then drifts
back, the capacitor is good. If needle does not move or moves
to infinity (
∞ ) and does not drift back, replace capacitor (2). If
moisture sensors (optional) are damaged, remove machine
screws (39) and washers (40) from probes (37). Remove
probes (37) from intermediate coupling (9).
IMPORTANT !
ALL PARTS MUST BE CLEAN BEFORE
REASSEMBLY.
F-4.2) Reassembly:
Moisture Sensors-
If pump is equipped with optional
moisture sensors, to reassemble, apply thread compound to
threads on probes (37) and install in intermediate coupling
(9). Connect wires (38) to probes (37) with washers (40) and
machine screws (39).
Bearings- When replacing bearing, be careful not to damage
the rotor or shaft threads. Clean the shaft thoroughly. Place
conduit bushing (6) and washer (25) over shaft. Apply
adhesive compound to shaft and press bearing (23) on,
positioning squarely on the shaft shoulder, applying force to
the inner race of bearing only.
Motor- Slide motor rotor and bearing (23) into intermediate
coupling (9). Place washer (25) over bearing and tighten
conduit bushing (6) on intermediate coupling (9). Set motor
stator over rotor being sure that stator drops flat against
register in intermediate coupling (9). Insert motor bolts in
motor and torque to 17 inch pounds. Reconnect capacitor
wires and terminal insulators (28) to capacitor. Make wire
connections per paragraph F-4.3. Set square-ring (7) in
groove on intermediate coupling (9), lower motor housing (5)
down onto intermediate coupling (9). Reassemble inner and
outer seals per paragraph F-3.2 and volute and impeller per
paragraph F-2.2.
F-4.3) Wiring Connections:
Check power cable (29) and control cable (32) for cracks or
damage and replace if required. When replacing cord (29) be
sure to check if pump has a three wire (standard) or five wire
(with optional moisture sensor) cable, on single phase
pumps. When replacing power cord (29) and/or control cord
(32) on three phase pumps be sure to check if pump has a
four wire power cable and/or (32) control is either 2 wire (for
tempeature only) or five wire cable (for moisture and
temperature sensors). Place parts (29b,c & d) on cable (29a).
Bring cord set (29) through opening in top of motor housing
(5), and reconnect motor leads to power cable (29) (three
wire) using connectors (27). See Figure 7. If pump is
equipped with moisture sensors, connect wires (38) to power
cable (29) (five wire) with connectors (27).
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