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Perkins 4.99 - Water Pump Dismantling and Inspection; Water Pump Dismantling Procedures; Water Pump Component Inspection

Perkins 4.99
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COOLING
SYSTEM-M.2
M2
To
Dismantle the Separate Bearing Type
Pump (Fig. M.3)
NOTE:
On
later
pumps
items
4,
5,
10
and
11
are
no
longer
fitted
and
a
longer
distance
piece
has
been
introduced
to
accommodate
the
removal
of
the
seal
retaining
flange
(4).
1.
Where
necessary
remove
the
pulley
circlip
(14)
and
using
a
suitable
puller,
remove
the
pulley
(1)
as
shown
in Fig. M.2.
Make
a
note
of
the
position
of
any
pump
securing
setscrew
that
has been
trapped
in its
location
by
the
pulley.
2.
Using
a
suitable
adaptor
that
will
pass
through
the
Ii
M4
2
0.000/0.006
in
(0,00/0,15
mm)
7 6
3
bearings,
press
out
the
shaft
(8)
through
the
rear
of
the
pump
complete
with
the
impeller
(6)
counterface
(7),
seal
(9)
and
thrower
(10).
3.
Press
the
impeller
from
the
shaft
and
remove
the
counterface,
seal
and
thrower.
4.
Hemove
the
bearing
circlip
(13)
and
using
a suit-
able
adaptor,
press
the
bearings
(12)
and
distance
piece
(2)
out
through
the
front
of
the
body
(3).
5.
Remove
the
seal
retaining
flange
(4),
felt
seal
(11)
and
seal
retainer
(5).
To Dismantle the
Combined
and
Shaft (
Using
a
suitable
puller,
remove
the
pulley
(1),
as
shown
in
Fig. M.2.
Make
a
note
of
the
position
of
any
pump
securing
setscrew
that
has
been
trapped
in its
location
by
the
pulley.
2.
Remove
the
clip
(7)
through
the
aperture
in
the
pump
body
(2).
3.
Press
the
bearing
and
shaft
assembly
(8)
out
through
the
rear
of
the
pump
complete
with
the
impeller
(3),
counterface
(4),
seal
(5)
and
thrower
(6)
4.
Press
the
impeller
from
the
shaft
and
remove
the
counterface,
seal
and
thrower.
To
Dismantle
Earlier
(
II
This
is
the
same
as
for
the
later
types
detailed
above
M3
~77?:;rz2:Z~st22~~j~iE~~~1_
except
that
the
insert
(1)
will
be
pressed
out
with
the
.
ri
9
shaft
and
impeller.
Inspection
1.
Examine
the
pump
body
for
cracks,
corrosion
or
any
other
damage.
Check
that
the
seal
housing
bore
is
not
damaged.
Renew
where
necessary.
2.
Examine
the
shaft
and
bearing
assembly
for
wear
or
corrosion.
Renew
where
necessary.
3.
Examine
the
water
thrower
flange
for
damage
or
corrosion.
Renew
where
necessary.

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