Maintenance instructions – Allmand Brothers Allmand 8.5 10 FT BACKHOE User Manual
Page 33
33
CYLINDER SEAL REPLACE
2.
Slide
the
gland
onto
the
cylinder
rod
being
careful
not
to
damage
the
rod
wiper.
Then
install
the
spacer,
or
flat
washer
(if
so
equipped),
small
O-ring,
piston,
and
hex
nut
onto
the
end
of
the
cylinder
rod.
INPORTANT: Ensure that the piston
ring
fits
squarely
into
the
cylinder
tube
and
piston
groove,
otherwise
the
ring
may be damaged and a leak will oc-
cur.
4.
Apply
a
lubricant
(such
as
Lubriplate
#105)
to
the
piston
and
teflon
ring.
Insert
the
cylinder
rod
assembly
into
the
cylin-
der
tube.
IMPORTANT: Do not contact the ac-
tive surface of the cylinder rod with
the vise. Damage to the rod could
result.
5.
Use
a
spanner
wrench
to
rotate
the
gland
clockwise
into
the
cylinder.
Con-
tinue
to
rotate
the
gland
with
the
spanner
wrench
until
it
is
tight.
NOTE:
Seal
kits
will
service
all
backhoe
cylinders
of
similar
bore
size
and
rod
diameter.
WARNING! Cylinders serviced in the
field
are
to
be
tested
for
leakage prior to the hoe
being placed in work.
Failure
to
test
rebuilt
cyl-
inders could result in
damage to the cylinder
and/or backhoe, cause
severe personal injury,
or even death.
3.
Secure
the
cylinder
rod
(mounting
end)
in
a
vise,
with
a
support
at
it's
center.
Torque
the
nut
to
the
amount
shown
for
the
thread
diameter
of
the
cylinder
rod
(
see
chart
).
MAINTENANCE INSTRUCTIONS