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PUMP DISASSEMBLY.
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TM-55-1730-222-12 Jack Hydraulic Tripod 3 Ton Part No. 8587 Manual
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Table 4-5. Pump Assembly Detail Inspection
T.O. 35A2-2-77-1
TM 55-1730-222-12
Table 4-4. Jack Component and Hydraulic Lift Detail Inspection (See figure 5-1.)
Procedure
Test/Check
Part
Index No.
Refer to table 4-5.
2
Detail inspection
Pump assembly
Examine for cracked, gouged, or stripped
Locknuts
Visual
6,7
threads; out-of-round diameters; and for bent
or deformed face flats.
Examine for grooved or scored ID.
8
Visual
Bushing
Refer to table 4-6.
Excessive wear
Examine for grooved or scored shank or
9,15
Visual
Rams
thread crest OD; bending; and for cracked,
gouged, or stripped threads.
Refer to table 4-6.
Excessive wear
Examine for cracks; and for grooved, gouged,
12
Visual
Head
or out-of-round ID.
Examine for grooved or scored ID.
Cylinder
18
Visual
Refer to table 4-6.
Excessive wear
Examine for cracks and deformation; and for
Caster springs
21
Visual
free length of 4.35 inches.
Check for compression to 3.75 inch length at
Compression rate
125 13 pounds load.
Examine for bent stem; and for cracked or
Caster assemblies
22
Visual
gouged tread.
Wheel and swivel
Manually spin caster wheel; rotation of wheel
function
shall be smooth and free; with no evidence of
hesitation, wobble, or oscillation. Swivel
caster horn about stem shaft; there shall be no
evidence of rough spots, binding, or cocked
(non-axial) swivel about caster centerline.
Base and reservoir
23
Examine for cracks; out-of-round or deformed
Visual
holes; and for loose or open base-to-outer
cylinder, leg, footpad, or caster outrigger
weld joints.
Table 4-5. Pump Assembly Detail Inspection (See figure 5-2.) (Sheet 1 of 2)
r
Part
Test/Check
Index No.
Procedure
Pump link
Visual
Examine for bending and deformation; and
4
for out-of-round holes.
I
Rocker arm
Visual
Examine for out-of-round holes.
6
I
Piston
7
Visual
Examine for grooved or scored minor (wear
surface) OD.
Excessive wear
Refer to table 4-7.
4-6

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