TM 5-3810-306-20
CAUTION
When oils are changed or added,
ensure
that
oils
of
different
manufacturers
are
to
MIL-L-2104
grade 10.
NOTE
Draining the various components will
require connecting a drain line in
place of the disconnected return line.
a. Disconnect return line from lift cylinder and raise
boom to maximum elevation.
b. Connect cylinder return line and lower boom to
its stowed position. Refill hydraulic reservoir as
required.
c. Disconnect return line from an outrigger
extension cylinder and fully extend outrigger.
d. Connect outrigger return line and retract
outrigger. Refill hydraulic reservoir as required.
e. Repeat steps c and d for remaining three
outriggers.
CAUTION
When draining the jack cylinders,
always operate either both front or
both
rear
cylinders
together
to
prevent twisting the crane.
f.
Disconnect return lines from front outrigger jack
cylinders
and
activate
cylinders
to
their
maximum down position.
g. Connect return lines and raise jack cylinders to
stowed position. Refill hydraulic reservoir as
required.
h. Repeat steps f and g for rear outrigger jack
cylinders.
i.
Disconnect return line from telescope cylinder
and fully extend boom.
j.
Connect return line and retract boom. Refill
hydraulic reservoir as required.
k. Disconnect return lines from both front steer
cylinders and turn front wheels to extreme right.
l.
Connect return lines and turn front wheels to
extreme left and then back to center. Refill
hydraulic reservoir as required.
m. Repeat steps k and 1 for rear steering cylinders.
n. Return crane to travel mode (all cylinders
retracted and boom over the front).
3.
DRAIN AND REFILL HYDRAULIC RESERVOIR
WITH FRESH OIL, MIL-L-2104, GRADE 10.
4.
START ENGINE AND OPERATE ALL CRANE
FUNCTIONS. CHECK AND REFILL RESERVOIR
AS REQUIRED.
END OF TASK
16-51
