Maintenance instructions – Allmand Brothers Allmand 8.5 10 FT BACKHOE User Manual
Page 28
28
CYLINDER SEAL REPLACE
GENERAL INFORMATION
The
following
information
is
provided
to
assist
you
in
the
event
you
should
need
to
repair
or
rebuild
a
hydraulic
cylinder.
When
working
on
hydraulic
cylinders,
make
sure
that
the
work
area
and
tools
are
clean
and
free
of
dirt
to
prevent
contami-
nation
of
the
hydraulic
system
and
damage
to
the
hydraulic
cylinders.
Always
pro-
tect
the
active
part
of
the
cylinder
rod
(the
chrome
section).
Nicks
or
scratches
on
the
surface
of
the
rod
could
result
in
cylinder
failure.
Clean
all
parts
thoroughly
with
a
cleaning
solvent
before
reassembly.
DISASSEMBLY PROCEDURE
a
spanner
wrench
while
removing
the
re-
taining
ring.
2.
Rotate
the
gland
with
a
spanner
wrench
(available
from
your
dealer)
until
the
gland
retaining
ring
appears
in
the
milled
slot.
IMPORTANT: Do not contact the ac-
tive surface of the cylinder rod with
the vise. Damage to the rod could
result.
RETAINING RING TYPE GLAND
1.
Mount
the
cylinder
tube
securely
in
a
vise. CAUTION: Do not clamp too tight
and
distort
the
tube.
Pry
up
the
end
of
the
gland
retaining
ring
with
a
pointed
tool.
Rotate
the
gland
with
H O O K
NOTE:
On
cylinders
with
gland
retaining
rings,
the
gland
and
piston
seal(s)
can
be
pulled
out
and
cut
as
they
appear
in
the
milled
slot
during
disassembly.
After
cut-
ting,
pull
them
on
out
through
the
milled
slot.
KNIFE
MAINTENANCE INSTRUCTIONS