YAMADA NDP-5 series User Manual

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8.4 Liquid leakage from exhaust port (silencer)
8.4 Liquid leakage from exhaust port (silencer)8.4 Liquid leakage from exhaust port (silencer)
8.4 Liquid leakage from exhaust port (silencer)
Ca
CaCa
Cause
useuse
use Action to be taken
Action to be takenAction to be taken
Action to be taken
The diaphragm is damaged. Disassemble and check the pump and replace the
diaphragm.
The fastening nuts for the center disk are loose. Disassemble and check the pump.
Tighten the nuts.
8.5 High air consumption during operation
8.5 High air consumption during operation 8.5 High air consumption during operation
8.5 High air consumption during operation
Ca
CaCa
Cause
useuse
use Action to be taken
Action to be takenAction to be taken
Action to be taken
The seal ring and sleeve are worn out. Disassemble the air-switch portion, check and clean.
Replace parts as necessary.
8.6 Irregular noise
8.6 Irregular noise8.6 Irregular noise
8.6 Irregular noise
Cause
CauseCause
Cause Action to be taken
Action to be takenAction to be taken
Action to be taken
The supply air pressure too high. Adjust the supply air pressure.
The spool oscillates, and occurs ball chattering. Adjust the supply air pressure and discharge
pressure. Reduce inlet flow valve to adjusting liquid
pressure and volume.
The pump is clogged with sludge with particles of
larger than the permissible diameter.
Disassemble the casing, check and clean.
8.7 Irregular vibration
8.7 Irregular vibration 8.7 Irregular vibration
8.7 Irregular vibration
Cause
CauseCause
Cause Action to be taken
Action to be takenAction to be taken
Action to be taken
The supply air pressure is too high. Adjust the supply air pressure.
The spool oscillates, and occurs ball chattering. Adjust the supply air pressure and exhaust pressure.
Connection parts and pump mounting are loose. Check each connection part and tighten the bolts.
•If disassembly is required, refer to the maintenance manual and follow with the instructions.
•If any of the above mentioned causes do not apply to your problem, contact your dealer or our regional office.
9. Returning the product for servicing
9. Returning the product for servicing9. Returning the product for servicing
9. Returning the product for servicing
9.1 How to use the FAX Sheet
9.1 How to use the FAX Sheet 9.1 How to use the FAX Sheet
9.1 How to use the FAX Sheet
•Copy the FAX Sheet on p.60 "11. Trouble-Reporting FAX Sheet", fills out the necessary details regarding
your problem and conditions of operation, and faxes it to your dealer or our regional office.
9.2 Before returning the product
9.2 Before returning the product 9.2 Before returning the product
9.2 Before returning the product
1) Purge the pump of fluid and clean (see 6. Method of cleaning on p.27).
2) Return the product in the same package as when it was first shipped from the factory.
WARNING
WARNING WARNING
WARNING
•It will be the end-user responsibility to thoroughly wash a clean the pumps to prevent
accidents caused by liquid leaks.
CAUTION
CAUTION CAUTION
CAUTION
•Be sure to prevent liquid leak from pump for safe transport.

YAMADA NDP-5 series Specifications

General

Brand	YAMADA
Model	NDP-5 series
Category	Water Pump
Language	English