Product Manual

ManualsBrandsComet Pump ManualsLawn & GardenComet Soft Wash Pumping Unit — P36 Diaphragm Pump

The following data is on the pump name plate:

1. Pump Model

2. Maximum delivery ( at 0 psi)

3. Flow rate at maximum pressure

4. Maximum in pump pressure

5. Max R.P.M.

6. Serial number

A World Leader in Diaphragm Pumps

Operating and Maintenance Manual

Thank you for purchasing a Comet Pump. Comet is an ISO 9001 manufacturer and as such pro-

duces quality products which are safe, efficient and durable. Please read this manual carefully pay-

ing great attention to all the information provided especially that on safety issues.

www.cometpumps.com Toll Free (800) 331-7727

Summary of content (8 pages)

PAGE 1
A World Leader in Diaphragm Pumps Operating and Maintenance Manual Thank you for purchasing a Comet Pump. Comet is an ISO 9001 manufacturer and as such produces quality products which are safe, efficient and durable. Please read this manual carefully paying great attention to all the information provided especially that on safety issues. The following data is on the pump name plate: 1. Pump Model 2. Maximum delivery ( at 0 psi) 3. Flow rate at maximum pressure 4. Maximum in pump pressure 5. Max R.P.M. 6.
PAGE 2
OPERATING INSTRUCTIONS Preliminary Maintenance A) Check oil level, when pump is idle and placed horizontally, it must be at the mark indicated on the oil site glass (fig. 1) or be visible on the oil level plug (fig. 2), depending on type of pump. Top off with SAE 30W nondetergent oil if necessary. B) Check the air pressure in the pressure accumulator if applicable, (fig. 3) depending on the range of pressure used in the pump. Pressurize according to table A.
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Periodical maintenance to be carried out by user as follows: ATTENTION: check pump only when it is not running. OIL The level and cleanliness of the oil should be frequently checked (eg: each time the tank is filled). This will indicate if the pump and diaphragm are working properly. OIL LEVEL When pump is turned off, the oil level must correspond to the reference slot found on the oil sight glass or oil level cap depending on type of pump.
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PUMP MOUNTING ATTENTION: periodically check, especially when there is vibration during use (chain tractors, gasoline/diesel engines) that the mounting screws on the machine frame are tightened and if necessary re-tighten according to the machine manufacturer instructions. PRESSURE ACCUMULATOR Check pressure in pulsation dampner, if present, and for pulsation on the pressure gauge. EXTRA MAINTENANCE The following maintenance operations must be carried out periodically by a specialized technician.
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TROUBLE SHOOTING SYMPTOM The pump does not charge CAUSE REMEDY Air inlet Regulation valve closed control group not at zero Valve and/or site of inlet valve and delivery worn or dirty Check inlet for blockage Position the lever Worn valve and/or site of regulation valve Valve and/or site of inlet valve and delivery worn or dirty Insufficient rpm’s.
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Common causes of diaphragm failure Two marks in correspondence to valve seat TOP Fatigued and worn underneath piston retaining disc and two marks in correspondence to valve seat. Causes 1. Restricted suction. Blocked suction filter. Suction hose blocked or kinked. Suction lift too high. Spray mixture too thick (dense) 2. Pump RPM above specification Causes 1. Chemical incompatible with diaphragm material 2. Diaphragm swollen and soft 3. Diaphragm soft and spongy (Below 60º) 4.
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Notes