Anest Iwata DDP 70 B Manual De Instrucciones De Uso Y Mantenimiento página 21

DPS-70 C - DPS-70 CN DIAPHRAGM PUMPS
Fit tungsten carbide seat to main body so that tungsten carbide ball can be fitted on tapered side.
Do not forget to fit packing.
Wrong assembling can cause wrong movement of pointer of pressure gauge due to leakage from seat, failing
performance.
Pay attention to tightening torque when fitting joint (ref.1).
Too much tightening can damage main body.
Tightening torque of joint 14.7 N-m
When fitting joint, pay attention that tungsten carbide ball does not
slip out of the seat.
10.8 PAINT PRESSURE REGULATOR TROUBLESHOOTING
PROBLEM
THE POINTER OF
PRESSURE GAUGE
OVERTAKES
MAX. PRESSURE
PAINT LEAKS
OUTSIDE
SECONDARY
PRESSURE
DOES NOT RISE
PRESSURE IS
UNSTABLE
Spare parts marked by [#] must be ANEST IWATA original items. If not, it can cause failure.
CAUSE
Not properly seated or deposits by foreign.
matter
Wear or damage on seat.
Wear and damage on ball.
Seat packing. (ref. 6) damaged
Loose joint. (ref. 1)
Loose bolt with hex. Hole (ref. 17)
Loose hex. nut. (ref. 16)
Diaphragm damaged. (ref. 12)
O ring damaged. (ref. 4)
Primary pressure is too low.
Failure of pressure gauge. (ref. 24)
Paint hardened in rising pipe. (ref. 23)
Damage to valve spring (ref. 2)
SOLUTION
Clean and assemble again.
Replace tungsten carbide seat (ref. 5) [#]
Replace tungsten carbide ball (ref. 3) [#]
Replace packing (ref. 6) [#]
Tighten.
Tighten.
Tighten.
Replace diaphragm. [#]
Replace O ring. [#]
Raise primary side pressure.
Replace pressure gauge.
Clean paint out.
Replace valve spring. (ref. 2) [#]
EN
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