Toshiba RAV-SM563UT-E Service Manual page 53

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.
Table 7-2-3 Dimensions related to flare processing for R410A
Outer
Nominal
diameter
diameter
(mm)
1/4 6.4
3/8 9.5
1/2 12.7
5/8 15.9
Table 7-2-4 Dimensions related to flare processing for R22
Outer
Nominal
diameter
diameter
(mm)
1/4 6.4
3/8 9.5
1/2 12.7
5/8 15.9
Nominal Outer diameter
diameter (mm)
1/4 6.4
3/8 9.5
1/2 12.7
5/8 15.9
Thickness
(mm)
R410A clutch type
0.8
0.8
0.8
1.0
Thickness
(mm)
0.8
0.8
0.8
1.0
Table 7-2-5 Flare and flare nut dimensions for R410A
Thickness
(mm)
0.8
0.8
0.8
1.0
Fig. 7-2-1 Flare processing dimensions
Flare tool for
0 to 0.5
0 to 0.5
0 to 0.5
0 to 0.5
Flare tool for
R22 clutch type
0 to 0.5
0 to 0.5
0 to 0.5
0 to 0.5
Dimension (mm)
A B
9.1 9.2
13.2 13.5
16.6 16.0
19.7 19.0
– 53 –
ØD
A
A (mm)
Conventional flare tool
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
A (mm)
Conventional flare tool
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
width (mm)
C D
6.5 13
9.7 20
12.9 23
16.0 25
Flare nut
17
22
26
29