Barnes 3SE-DS Series Manual de instalação e operação - Página 8
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F-1.4) Pressure Test:
Motor Housing - Before checking the pump for leaks around
the shaft seal, square rings, and cord inlet, the oil level should
be full as described in section F-1.3. Remove pipe plug
(5) and lifting handle (7) from motor housing (2).Apply pipe
sealant to pressure gauge assembly and tighten into pipe
plug hole (see Fig. 2). Pressurize motor housing to 10 P.S.I.
Use a soap solution around the sealed areas and inspect
joints for "air bubbles". If, after five minutes, the pressure is
still holding constant, and no "bubbles" are observed, slowly
bleed the pressure and remove the gauge assembly. Replace
the pipe plug using a sealant. If the pressure does not hold,
then the leak must be located.
Seal Chamber - Remove pipe cap (22) and pipe plug (21)
from Bearing Bracket (20) and check that seal chamber is
full of oil. Apply pipe sealant to pressure gauge assembly
and tighten into hole in bearing bracket (20). Pressurize seal
chamber to 10 PSI and check for leaks as outlined above.
10 PSI
AIR
PRESSURE GAUGE
ASSEMBLY
REMOVE PIPE
PLUG
10 PSI
AIR
FIGURE 2
Caution ! - Pressure builds up extremely
fast, increase pressure by "tapping" air
nozzle. Too much pressure will damage
seal. DO NOT exceed 10 P.S.I. in motor
housing & 10 P.S.I. in seal chamber.
TABLE 1 - COOLING OIL - Dielectric
SUPPLIER
BP
Conoco
Mobile
G & G Oil
Imperial Oil
Shell Canada
Texaco
Woco
All manuals and user guides at all-guides.com
F-2) Impeller and Volute Service:
F-2.1) Disassembly and Inspection:
To clean out volute (25), disconnect power, remove hex nuts
(19), lockwashers (18) and socket head cap screws (42),
vertically lift motor and seal assembly from body (25). Clean
out body if necessary. Clean and examine impeller (27) for
pitting or wear, replace if required. Inspect Square Ring (36)
and replace if cut or damaged.
If impeller (27) requires replacing, remove cap screw (33)
and washer (34). The impeller is keyed onto the shaft with a
square key (32) and to remove, pull impeller straight off the
shaft using a wheel puller, if required. Before reinstalling,
check the motor shaft and impeller bore for damage.
F-2.2) Reassembly:
To install impeller (27), apply a thin film of oil to motor shaft
and slide impeller straight onto shaft, keeping keyways lined
up. Drive key (32) into keyway. Locate washer (34), apply
Loctite (46) to shaft threads, thread hex nut (33) to shaft and
torque to 35 ft. lbs. Rotate impeller to check for binding.
Position square ring (36) on volute flange and install impeller
and motor housing over studs and onto volute (25). Apply
REMOVE HANDLE
thread locking compound to threads of each stud (23) and
socket head cap screw (42). Thread nut (19) onto stud (23)
and thread socket head cap screw (42) into volute (25),
torque to 24 ft. lbs. Check for free rotation of motor and
impeller.
F-3) Motor and Bearing Service
F-3.1) Disassembly and Inspection:
To examine or replace the motor (1) and bearing (39),
disassemble pump, volute and impeller (as outlined in
paragraph F-2.1) and disassemble seal plate and shaft seal
(as outlined in paragraph F-4.1). Drain oil from motor as
outlined in paragraph F-1.3.
Position unit upright, using blocks to avoid resting unit on
shaft. After removal of cable and box assembly (9) from motor
housing (2), remove cable lead wires from motor lead wires
and moisture and temperature sensors wires (if equipped)
from control cable by unscrewing connectors (11) and (16).
The wiring connections should be noted to insure correct
connections when reassembling. Vertically lift the outside
motor housing (2) from bearing bracket (20) with lifting strap
(7). Inspect square ring (36) for damage or cuts. Remove the
upper motor bolts and lift upper end bell from motor (1).
Vertically lift stator. Inspect winding for shorts and resistance.
To test the temperature sensor (if equipped), check for
continuity between the black and white wires. If found to be
GRADE
defective contact a motor service station or Barnes Pumps
service department. Remove retaining ring (28) from bearing
Enerpar SE100
bracket (20) and pull motor rotor and lower bearing (39)
Pale Paraffin 22
vertically from bearing bracket (20). Examine bearing (39)
D.T.E. Oil Light
and replace if required. If replacement is required, remove
Circulating 22
retaining ring (29) from motor shaft and remove bearing (39)
Voltesso-35
from motor shaft using a wheel puller. Check rotor for wear.
If rotor or the stator windings are defective, the complete
Transformer-10
motor must be replaced. Check motor capacitor (3) on single
Diala-Oil-AX
phase units and replace if defective. While disassembled,
Premium 100
check moisture sensor wires (15) (if equipped), that they are
secured to electrodes (17) with screws (13).
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