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 TM 55-1905-223-24-7
c.
Install discharge (outer) valves:
(1)
On PLUMBING END of valve plate (21), install three new preformed packings (20), three valve seats (19),
valve disks (18), and helical compression springs (17).
CAUTION
When replacing helical compression spring of retainers (16), make sure
that the leg of the retainers does not point toward the inside (center) of
pump, or damage to valves will result.
(2)
Install three helical compression spring retainers (16).
d. Wipe valve plate (21) surface with clean rag.
e. Install new preformed packings (14 and 15) on shaft side of manifold (13).
f.
Wipe manifold (13) shaft side surface with clean rag.
g. Install manifold (13) on pump.
h. Secure manifold (13) to pump with six machine bolts (9), twelve flat washers (8), and six plain hexagon nuts (7).
i.
Pump replacement is covered in paragraph 2-18.
HYDRAULIC END:
NOTE
When removing manifold, be careful of loose parts.
DISASSEMBLY
a. Drain axial pistons pump oil (FIGURE 3-1).
(1)
With pump resting on pump base (3), remove oil filter machine thread plug (11).
(2)
Remove pipe cap (4) from metallic pipe (5) and pipe elbow (6). Drain oil from pump into l-quart container.
b. Wipe spilled oil from pump with clean rag.
c.
Remove solution end of pump:
(1)
Stand axial pistons pump on shaft end and remove manifold (13) by removing six machine bolts (9), twelve
flat washers (8), and six plain hexagon nuts (7).
3-6
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