TM 10-4930-236-13&P
d.
Install wear plate (26) and screws (25).
e.
Install shims (21, 22), spring (20), spring seat (19), impeller (18), capscrew (16) and washer (17). Insert flat blade
screwdriver through hole in rear of motor (29) to prevent shaft from turning and tighten capscrew (16).
f.
Using a feeler gage, check the clearance between the impeller(18) and wear plate (26) at a location where the
impeller is closest to the wear plate. This distance shall be .010-.015 inch (.254-.381 mm). Add or remove shims (21, 22)
as required to attain this clearance.
WARNING
Silicone compound, MIL-S-8660, is toxic to skin, eyes and
respiratory tract. Skin and eye protection required. Good general
ventilation is normally adequate.
g.
Apply silicone compound to O-ring packings (13, 14) and their contacting surfaces.
h.
Install O-ring packing (14) in housing and O-ring packing (13) on volute (12).
i.
Install volute (12), washers (11) and nuts (10).
j.
If removed, apply sealing compound to threads and install bushing (35) and plug (34).
k.
Refer to paragraph 4-14 and install flange and check valve.
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