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TM 5-4930-234-13&P
c.
Inspection.
1.
Inspect piston (14), rack (10), and spring pin (13) as follows.
(a)
Piston (14) must not have any nicks or scratches in o-ring groove or around outer edge. Metal
finish must not be damaged.
(b)
Spring pin (13) must be below flush on both sides of piston (14), and not be loose in hole.
(c)
Rack (10) teeth must not be chipped, cracked, or broken.
2.
Inspect handle (22), thumb latch (26), and spring pin (25) as follows.
(a)
Handle (22) must not have any cracks, or distortion in shape. Hole for plug (16) must be free of dirt
or corrosion.
(b)
Spring pin (25) must be below flush on both sides of handle (22), and must not be loose in hole.
(c)
Thumb latch (26) must move freely when pressed. Ear at bottom must not be cracked or broken.
3.
Inspect plunger (1) for straightness, nicks, burrs or distortion of slot in head. Metal finish of shaft must
not be worn through. Threads must not show any signs of stripping or cross-threading.
4.
Inspect flow control pin (21) for straightness, cracks, and corrosion. Keyway and groove for retaining
ring (15) must have no nicks, burrs or distortion. Corners of head must not be broken off or rounded.
5.
Inspect indicator pin (29) and indicator shaft (31) for straightness, corrosion, and wear of metal finish.
Groove for retaining ring (32) on indicator shaft (31) must not have any nicks or burrs.
6.
Inspect body (49) as follows.
(a)
Check external surfaces for cracks, corrosion or wear of metal finish.
(b)
Check internal surfaces for scoring, scratches, nicks or burrs in grooves for seals (46 and 47) or o-
ring (45).
(c)
Check internal passages for dirt or any residue of cleaning solvent.
(d)
Check threaded holes for cross-threading, dirt, or corrosion.
7.
Inspect all springs for cracks, or distortion of shape. Check springs per Table 5-2.
5-17
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