TM 9-2330-390-14&P
4-113. HYDRAULIC SYSTEM BLEEDING (Ml022A1 WITH SIDE LIFT KIT) (Con’t).
NOTE
During extension, maintain slack In hoist sling as top beams are raised.
14.
At front and rear, operate hydraulic control valve to SIMULTANEOUSLY extend hydraulic lift cylinders (5) and
hydraulic positioning cylinders (7). Throughout extension, maintain top and bottom beams (6 and 10) vertical.
15.
When full extension is reached, hold each
hydraulic control valve lever (20,21, and 22) in the
extend position until pressure gage (19) reads
2000 psi (13,790 kPa).
NOTE
If fluid level In hydraulic reservoir Is sufficient,
a cylinder piston seal leak should be lnvesti-
gated.
16.
If 2000 psi (13,790 kPa) is not developed, check
hydraulic fluid level in reservoirs (see para-
graph 3-7).
NOTE
During retraction, maintain slack In hoist sling as top beams are lowered.
17.
At front and rear, operate hydraulic control valve to SIMULTANEOUSLY retract hydraulic lift cylinders (5) and
hydraulic positioning cylinders (7). Throughout retraction, maintain top and bottom beams (6 and 10) vertical.
NOTE
If 2000 psi (13,790 kPa) Is not developed, a cylinder piston seal leak should be
investigated.
18.
When full retraction is reached, hold each hydraulic control valve lever (20,21, and 22) in the retract position
until pressure gage (19) reads 2000 psi (13,790 kPa).
19.
At front and rear, shut down engine (see paragraph 2-20).
20.
Fill hydraulic reservoirs to top line on dipstick (see paragraph 3-7).
21.
At front and rear, start engine (see paragraph 2-20).
22.
Repeat steps 7 and 8 to alternately fully extend hydraulic lift cylinders (5) and hydraulic positioning cylinders
(7).
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