Viking Pump TSM285: Classic+ Lobe Pump - Manual (Page 18)

SECTION TSM 285 ISSUE A PAGE 18 OF 36
- Slide casing (3.01) from gearbox (4.01) noting it is located on
dowels (4.03), keep arch shims (4.05) in appropriate sets if
they are to be reused.
4.2.2.2 CP40 CASING
REMOVAL fOR PUMPS
fITTED WITH SINGLE
fLUSHED OR DOUbLE
fLUSHED MECHANICAL
SEALS
- Prior to removal of casing (3.01) remove seal housing screws
(7.10) and separate housing (7.06) from casing (3.01) noting
it is located on dowels (7.09).
- Slide casing from bearing housing (4.01), noting it is located
on dowels (4.03), keep arch shims (4.05) in appropriate sets
if they are to be re-used
Single Flushed Mechanical Seal as shown in Figure 31 and
see sections 5.2.3 for removal and 5.2.4 for replacement.
Double Flushed Mechanical Seal as shown in Figure 32 and
see section 5.2.7 for removal and 5.2.8 for replacement.
4.2.3 CP40 GEARbOX
DISASSEMbLy
(After completing 4.3.1 and 4.3.2) - See Figure 33.
Before proceeding with disassembly of the gearbox remove
product seals; refer to sections 5.0 for Mechanical Seals or
section 6.0 for O-ring seals.
The following procedure describes complete disassembly of
the gearbox, refer to Figure 33.
- Remove drive key (6.12), oil drain (6.09) and breather plugs
(6.10), drain oil into suitable container and retain if later
inspection is required.
- Remove screws (6.11) and gearbox cover (6.00). The
gearbox cover (6.00) is located on dowels (6.06) and sealed
with suitable liquid sealer.
- Remove oil seal (6.03) from gearbox cover (6.00).
- Loosen by 2 full turns all screws in retainer (5.16). Once this is
done, the retainer may release its grip. If it does not become
free, remove the two screws, which differ in color (these may
also have a washer under the head). Once these screws are
removed, tapped holes will be revealed. Insert two jacking
M8 x 40 setscrews into the tapped holes and tighten until the
retainer’s grip is broken. Remove the retainer.
figure 30
O-ring Seal
figure 31
Single flushed Mechanical Seal - CP40