Yanmar ViO12-2A, Service Manual

Page: 18 / 409

1. GENERAL CAUTIONS FOR
MAINTENANCE WORK
1-9
(2) Special Parts
The example hose, P 2 06 AB 075 W stands for :
2 3 4 5 6 7
2 Material : Plastic
3 Working pressure : 17.2 to 20.6 MPa
4 Nominal dia. : 3 / 8"
5 Fitting type : Taper pipe thread R (PT) and straight pipe thread G (PF) with male 30 degrees seat.
6 Length : 75 cm
7 Hose protector : Coil spring
Description ..................... Hose P 2 06 AB 075 W
1 Part name
3 Recommended
working pressure (MPa)
Over 20.6 .................
............
.... 1
17.2 to 20.6
..........................
..... 2
13.7 to 17.
2 .........................
..... 3
10.8 to 13.7
.........................
..... 4
6.9 to 10.8 .......
.......................
.. 5
2.9 to 6.9 .......
.....................
...... 6
1.5 to 2.9 .....
.....................
........ 7
Below 1.5 ............
..........
........... 8
4 Nominal dia. (inch)
1 / 8" ......................... 02
3 / 16" ....................... 03
1 / 4" ......................... 04
3 / 8" ......................... 06
1 / 2" ......................... 08
5 / 8" ......................... 10
3 / 4" ......................... 12
1" .............................. 16
5 Combination of fitting
Fitting type Code
Taper pipe
thread R (PT)
A
Straight pipe
thread G (PF)
with male 30
degrees seat
B
90 degrees
bent type.
Straight pipe
thread G (PF)
with male 30
degrees seat
C
Without fitting
Y
*For the combination of fitting,
refer to the list on the following
page.
6 Total length
(Unit : cm)
Symbol
G (PF)
R (PT)
Rc (PT)
Name
Straight pipe thread
Male taper pipe thread
Female taper pipe thread
List of pipe threads
1 2 8 7 6 5 4 3
2 Hose material
Rubber hose ........... G
Wear-resistant high
pressure rubber
hose ....................... H
Plastic hose ............ P
Wear-resistant
plastic hose ............ F
8 Other accessories
No accessories...Blank
O-ring ....................... 1
7 Hose protector
Coil spring ............... W
Coil tube .................. S
Wire braid ................ B
Tube (Rubber) ......... R
Tube (Vinyl) ............. V
Sponge rubber ......... P
Hose cover ............... K
No protection ..... Blank
90°
30° G(PF)
R(PT)
30°
G(PF)