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TM 10-4930-248-13&P
5-3.
CCR
NOZZLE,
PISTON
MODEL,
ASSEMBLY
REPAIR
- continued.
c. Assembly - continu
.
(37)
Install washer (11) between side plate (13) and nozzle housing (14). Insert bushing (12) in side plate (13).
Position a washer (11) on outside of side plate (13) and attach parts to nozzle housing (14) using screw (10).
Torque screw (10) to 125 + 10 in. lbs.
(38)
Position handle (2) and install four handle screws (9). Torque handle screws (9) to 35 ± 5 in. lbs.
(39)
If screw (5) and lock pin (6) were removed from end cover (4) use a soft jaw chuck or vise to hold locking
pin (6) in place and install screw (5).
NOTE
It may be necessary to reposition actuating ring (18) to allow for lock pin when installing end cover.
CAUTION
Spring pressure will be present when installing the end cover.
(40) Position spring retainer (7) and spring (8) over position indicator.
(41)
Install end cover (4) using screws (3). Tighten screws (3).
(42)
Use poppet tool to tighten poppet securely in piston assembly in nozzle housing (14).
(43) Remove compression tool by pulling back on collar (27).
d. Testin . After repair, the CCR Nozzle should be tested to ensure proper operation. A typical setup for testing is
shown.
WARNING
Drycleaning solvent, AA 711 Types I and II, used to clean parts is potentially
dangerous to personnel and property. Use in well ventilated area as the furnes
are dangerous if inhaled. Avoid repeated and prolonged skin contact. Do not
use near open flame or excessive heat. Flash point of solvent is 138* F.
NOTE
There shall be no evidence of leakage during flow conditions, binding, valve
chatter, distortion, or requiring excessive force at connecting and
disconnecting of the nozzle to the test adapter.
(1)
Functional
Test.
(a)
Position nozzle handle (1) in the CLOSED (no flow) position and connect nozzle test adapter (2) and test
adapter inlet (3).
(b) Open valve (8).
(c) Adjust pump (5) to 25 psig at nozzle inlet gage (4).
(d)
Move nozzle handle (1) to the OPEN (flow) position to start flow.
(e)
Close valve (8). Flow indicator at back of nozzle assembly (9) should be visible, indicating flow has
stopped.
5-38
Change 1
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