Figure 2-13. ELbow body assembly.

4. I n s t a l l t h e a s s e m b l e d t u b e o n t o t h e

tube end of the body, finger-tight. Tighten the nut

p o s i t i o n i n g the body. Then tighten the nut on the

tube assembly.

Figure 2-14. Sleeve type fitting.

2. Type B.

(a) Place the nut and sleeve (fig. 2-15)

o n t o the tube. Install the sleeve so the thick end

faces away from the body.

( b ) Install the insert into the tube.

as illustrated.

(d)

Tighten

the

nut

turns

past

finger-tight.

Figure 2-13. ELbow body assembly.

b. A s s e m b l y o f s l e e v e s o n t o t u b e s .

1. Type A. It is necessary to preset this

t y p e of sleeve (fig. 2-18) onto the tube before the

t u b e assembly is installed on the fitting body.

(a) Lubricate the sleeve and the threads

o n presetting tool and nut.

(b) Place the nut on the tube with the

threaded end of the nut toward the end of the tube.

short-tapered heavy end faces the presetting tool as

illustrated.

(d) Bottom the tube end against

s h o u l d e r of the tool.

(e) Assemble the nut to the tool finger-

tight. Then tighten the nut until the threads on the

Figure 2-15. Sleeve and insert-type fitting.

t o o l are no longer visible.

3. Type C.

(f) Remove the tube from the presetting

( a ) With the nut and sleeve installed

tool. Check to be certain sleeve does not move

loosely in the body (fig. 2-16), install the tube

longitudinally. (The sleeve can rotate on the tube).

through the nut and sleeve until the end of the tube

When the tube

assembly

(g)

i s seated against the shoulder in the fitting body.

assembled onto the fitting body, tighten the nut

(b) Grip the tube firmly to prevent

until the threads on the body are no longer visible.

t w i s t i n g or turning and tighten nut until a slight

R e f e r to (5) (a) a b o v e f o r t h e i n s t a l l a t i o n o f t h e

" g i v e " o r decreased resistance is felt. The "give"

fitting

bodies.

indicates that the sleeve has been sheared from the

2-8