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8. Trouble Shooting
No. Problems
Causes
Remedies
Air has not been released.
Refer to
5-2. Preparing spraying
procedure on page 13.
Suction Hose Set
(E) or
Valve
Adaptor Set
(2-58/3-61) is loose.
Tighten.
Packing
(lower, 2-56/3-59) is worn.
Replace. *2
3
Paint contains air.
Fluid contains air by over agitating.
Adjust agitator.
Fluid pressure is too low.
Increase fluid pressure at
Air
Regulator
(C).
Fluid Filter
(6-5/7-3),
Suction
Filter
(8-5) or spray gun filter is
clogged.
Clean or replace.
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
V-packing
(lower, 2-49/3-54) is
loose.
Tighten. *2
Exhaust hole of pump is blocked.
Clean.
Nozzle tip is worn or orifice size is
too large.
Replace or choose smaller orifice
size. *3
4
Pulsation or variance within
spray pattern.
Fluid or air is leaking.
Find leak and fix.
Fluid hose or joint is loose or
damaged.
Tighten or replace.
Paint leaks from fluid hose or
joint.
Paint builds up on seat of fluid joint.
Clean or replace.
Wet Cup
(2-42/3-40) is loose.
Tighten. *1
Paint leaks from the
Wet Cup
(2-42/3-40).
V-packing
(upper, 2-45/3-46) is
worn or damaged.
Replace. *2
Suction Tube
(2-54/3-58) is loose.
Tighten. *2
Paint leaks from between
Suction Body
(2-40/3-47)
and the
Suction Tube
(2-54/3-58).
Packing
(upper, 2-52/3-57) is worn
or damaged.
Replace. *2
Cylinder
(6-2/7-1) is loose.
Tighten.
5
Paint leaks from
Fluid Filter
Set
(I).
Packing
(6-6) or
O-ring
(7-5) is
worn or damaged.
Replace.
Air leaks from air hose or
joint.
Air hose or fitting is loose or
damaged.
Tighten or replace.
O-ring
(2-16/2-20/3-5/3-26) is worn
or damaged.
Replace. *2
Packing
(2-34/3-2) is worn or
damaged.
Replace. *2
6
Air leaks from air motor.
Pipe Nut
(2-9) is loose or
Sleeve
(2-10) is worn or damaged.
Tighten or replace.
*1 Refer to
7-2. How to tighten V-packing (upper) of plunger pump
on page 15.
*2 Refer to
9. Disassembly and Assembly
on page 18.
*3 Refer to
11. Nozzle Chart
on page 35.
Summary of Contents for MSU-111N
Page 31: ...29 10 Parts List 10 2 Plunger pump 13 1 PP 7131N...
Page 33: ...31 10 Parts List 10 3 Plunger pump 17 1 PP 1171CNE...
Page 38: ...36 Note...
Page 39: ...37 Note...
Page 40: ...Manual Nr T032 00...