Anest Iwata MSU-111N, Instruction Manual

Page: 18 / 40

- 16 -
Ű 8. Trouble Shooting
Refer to Fig.1 on page 8 or Fig.2 on page 9 and 10. Parts List on page 29 - 35 to find reference letters and
numbers.
No. Problems Causes Solutions
Check air compressor and hoses. Air pressure is not supplied to the
unit.
Check emergency valve.
Increase supplied air pressure. Pump operating air pressure is too
low.
Increase air pressure at Air
Regulator (C).
V-packing (upper, 2-45/3-46 or
lower, 2-49/3-54) is over tightened.
Loosen Wet Cup (2-42/3-40) *1 or
Valve Holder Nut (2-47/3-50). *2
Parts of air motor are worn or
damage. Replace parts. *2
Parts of air motor are not
assembled correctly. Reassemble air motor. *2
Pump frozen (supplied air contains
too much moisture). Eliminate air moisture by using a
dryer or water trap.
Exhaust hole of pump is blocked. Clean.
1 Pump does not operate.
Switch Block (2-17) is installed in
the incorrect direction.
Reassemble. *2
Increase supplied air pressure. Pump operating air pressure is too
low.
Increase pump operating air
pressure at
Air Regulator (C).
Fluid Filter (6-5/7-3), Suction
Filter (8-5) or spray gun filter is
clogged.
Clean or replace.
Suction Hose Set (E) is clogged. Clean or replace.
V-packing (upper, 2-45/3-46 or
lower, 2-49/3-54) is worn or
damaged,
Replace. *2
V-packing (upper, 2-45/3-46 or
lower, 2-49 / 3-54) is installed in the
incorrect direction.
Reassemble. *2
V-packing (upper, 2-45/3-46) is
over tightened or loose.
Loosen or tighten Wet Cup
(2-42/3-40). *1
V-packing (lower, 2-49/3-54) is
over tightened or loose.
Loose or tighten Valve Holder Nut
(2-47/3-50). *2
Pump frozen (supplied air contains
too much moisture). Eliminate air moisture by using a
dryer or water trap.
Ball (upper, 2-51/3-55 or lower,
2-57/3-60) sticks on valve.
Clean. *2
Valve Holder Set (2-53/3-56) or
Valve Adaptor Set (2-58/3-61) is
worn or damaged or paint is built
up.
Replace or clean. *2
Fluid or air passage inside pump is
clogged. Clean.
Nozzle tip or filter on spray gun is
clogged. Clean or replace. See instruction
manual of spray gun.
Fluid contains air. See No.3 on next page.
2 Pump operation unstable.
Fluid output is low.
Fluid does not come out
during pump operation.
Air leaks from air motor of pump.
(Not exhausting air) See No.6 on next page.