Toshiba RAV-SM564ATJP-E Service Manual page 31

c) Insertion of Flare Nut
d) Flare Processing
Make certain that a clamp bar and copper pipe have been cleaned.
By means of the clamp bar, perform the flare processing correctly.
Use either a flare tool for R410A or conventional flare tool.
Flare processing dimensions differ according
to the type of flare tool.
When using a conventional flare tool, be sure
to secure "dimension A" by using a gauge for
size adjustment.
Outer
Nominal
diameter
diameter
(mm)
1/4 6.4
3/8 9.5
1/2 12.7
5/8 15.9
Nominal
diameter
1/4
3/8
1/2
5/8
Nominal
diameter
1/4
3/8
1/2
5/8
3/4
SVM-13072.indb 31 SVM-13072.indb 31
Table 6-2-3 Dimensions related to flare processing for R410A / R22
Thickness
Flare tool for
(mm)
R410A, R22
clutch type
0.8 0 to 0.5
0.8 0 to 0.5
0.8 0 to 0.5
1.0 0 to 0.5
Table 6-2-4 Flare and flare nut dimensions for R410A
Outer diameter Thickness
(mm) (mm)
6.4 0.8
9.5 0.8
12.7 0.8
15.9 1.0
Table 6-2-5 Flare and flare nut dimensions for R22
Outer diameter Thickness
(mm) (mm)
6.4 0.8
9.5 0.8
12.7 0.8
15.9 1.0
19.0 1.0
Fig. 6-2-1 Flare processing dimensions
A (mm)
Conventional flare tool
(R410A)
Clutch type Wing nut type
1.0 to 1.5 1.5 to 2.0
1.0 to 1.5 1.5 to 2.0
1.0 to 1.5 2.0 to 2.5
1.0 to 1.5 2.0 to 2.5
Dimension (mm)
A B C
9.1 9.2 6.5
13.2 13.5 9.7
16.6 16.0 12.9
19.7 19.0 16.0
Dimension (mm)
A B C
9.1 9.2 6.5
13.0 13.5 9.7
16.2 16.0 12.9
19.4 19.0 16.0
23.3 24.0 19.2
– 31 –
FILE NO. SVM-13072
ØD
A
Conventional flare tool
(R22)
Clutch type Wing nut type
0.5 to 1.0 1.0 to 1.5
0.5 to 1.0 1.0 to 1.5
0.5 to 1.0 1.5 to 2.0
0.5 to 1.0 1.5 to 2.0
Flare nut width
(mm)
D
13
17
20
22
23 26
25
29
Flare nut width
(mm)
D
13 17
20 22
24
20
23 27
36
34
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