−
4
−
Problems and remedies
Contact and ask the shop which sold it to you regarding
☆
marked items.
Wrong remedies can cause insufficient performance.
Problems
Causes
Remedies
Secondary pressure rises too
much.
1. Not properly seated, or foreign matter
2. Wear or damage on seat
3. Wear and damage on ball.
4. Damage to packing
1. Clean and assemble again.
2. Replace. tungsten carbide seat(No.5)
3. Replace. tungsten carbide ball
（
No.3
）
4. Replace. packing
（
No.6
）
Paint leaks outside.
1. Loose joint (No.1)
2. Loose bolt with hex. hole (No.16)
3. Loose nut(No.15)
4. Damage to diaphragm (No.11)
5. Damage to O ring(No.4)
1. Tighten.
2. Tighten.
3. Tighten.
4. Replace.
☆
5. Replace O ring
（
No.4
）
.
Secondary pressure does not rise. 1. Low primary pressure.
1. Raise primary side pressure.
Pressure is unstable.
1. Damage to valve spring
（
No.2
）
1. Replace valve spring
（
No.2
）
.
※
The number in parentheses
（）
shows the number of parts lists.
Parts list
No.
Parts name
Qty
No.
Parts name
Qty
1 Joint
１
14 Spring washer
1
2 Valve spring
１
15 Hex. nut
1
★
3 Ball
１
16 Bolt with hex. hole
6
★
4
Ｏ
ring
１
17 Diaphragm cap
1
★
5 Seat
１
18 Plug with hex. hole
1
★
6 Packing
１
19 Half union
1
7 Jam nut
1
Accessories
※
8 Main body
１
Anti-dust cap
Instruction manual
2
１
9 Diaphragm bolt
１
★
10 Diaphragm holder
１
★
marked parts are consumable
parts.
★
11 Diaphragm
１
12 Diaphragm stopper
１
13
Ｏ
ring
１
※
As the only difference between FCV-3 and FCV-3N is main body,
specify ref. No., and part name when ordering parts.
■
Never use commercial or other parts instead of ANEST IWATA original spare parts.
■
When unpacking, confirm that there is no damage or shortage.
■
If there is damage or shortage during transportation, do not use the equipment and contact the shop
which sold it to you.
No.1579-04
Code No.04756411
3176,Shinyoshida-Cho, Kohoku-Ku, Yokohama 223-8501, Japan
