9
Pump Fastener Torque settings
M12
ISO Grade 8.8
85Nm (63ft-lb)
Motor Fastener Torque Settings
M10
ISO Grade 4.6
20Nm (15ft-lb)
M10
ISO Grade 8
(nut)
M12
ISO Grade 4.6
30Nm (22ft-lb)
M12
ISO Grade 8
(nut)
5.
Remove
Circlip
from end of Quill
Assembly.
Refer Fig 4
Fig 4
6.
Remove Mechanical Seal Assembly (the
Coupling Guard retaining screws may be
screwed into the Impeller and/or Seal Assembly
to aid removal).
The Coupling Guard retaining
screws may be screwed into the
Seal Assembly to aid removal.
7.
Remove Carbon
Seal Seat and
Lip Seal from
Cartridge.
Refer Fig 5
Fig 5
8.
Remove Circlip and press Bearings from Shaft.
9.
Remove Dust Seal (Bearing) from Body.
5.5 INSPECTION
1.
Check Impeller and Seal Zone of Body for
damage or wear. Replace Impeller if blades
have been damaged or wear exceeds minimum
recommended dimensions. Refer Fig.6
MINIMUM IMPELLER DIMENSIONS
mm
Pump Model
RC20
RC25
RC40
Minimum worn width
8.86
9.86
14.86
Minimum worn
diameter
109.86
109.86
117.86
Fig 6
2.
Check Shaft for wear, damage or run-out.
Replace as required.
3.
Inspect both Ball Bearings for wear. It is
recommended on major overhauls that Ball
Bearings be replaced.
4.
Check Mechanical Seal components for wear or
damage. It is recommended on major overhauls
that Mechanical Seal components be replaced
.
5.
It is recommended that as a standard procedure,
all O-Rings be replaced at every overhaul or
when any disassembly is conducted.
5.6 SPARE PARTS
1. When ordering spare parts, to ensure a minimum
of delay and correct replacement to original
specification,
ALWAYS
quote the pump Serial
Number located on the nameplate of the pump.
2. Advise the name, Cat # and quantity required.
Refer to Drawing No A316001B and A316001L
(Section 6)
3. Advise
complete
delivery
instructions,
transportation, etc.
NOTE:
Substitute or so-
called ‘equivalent’
item/spare parts are not recommended for use.
Compliance,
safe
operation
and
pump
performance may be severely compromised if
incorrect or substitute spare parts
– including
Fasteners, O-Rings, Ball Bearings, etc
– are used
.
5.7 REASSEMBLY - PRELIMINARY
1. Ensure all parts are clean before assembly.
Remove any burrs.
2. Ensure Impeller maintains an accurate free sliding
fit on Shaft and key.
This is critical
.
At
all
times
when
handling and installing
mechanical seals, care must be taken to ensure
lapped faces and seats are not damaged.
Particular attention must be given to carbon seats
to prevent marking or chipping.
3. Lightly
lubricate
O-Rings,
Lip
Seals
and
Mechanical Seal Faces with a compatible good
quality detergent-free light oil before assembly
.
5.8 REASSEMBLY
(Refer Drawing No A316001L A319001L)
Quill Assembly
1.
Fit Lip Seal to Cartridge.
(note position of lip)
Refer Fig 7
Fig 7
2.
a) Fit O-Ring to Seal
Seat.
b)
Fit Seal Seat to
Cartridge.
Refer Fig
8
Fig 8
CAUTION
DANGER
Bearing Replacement recommended not
exceeding 10,000 operational hours.
NOTE:
