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11

PUMP SYSTEM MALFUNCTION

Preventative Maintenance Check-List & Recommended Spare Parts List

Check 

Daily   Weekly   50hrs 

Every 

       Every 

        Every 

 

 

 

 

500 hrs        1500 hrs 

       3000 hrs

Oil Level/Quality 

X

Oil Leaks 

X

Water Leaks 

X

Belts, Pulley 

 

X

Plumbing 

 

X

Recommended Spare Parts

Oil Change (p/n 1154) 

 

 

     X 

 

Seal Spare Parts (1 kit/pump) 

 

 

 

 

            X 

 

 

(See page 7 for kit list) 

 

 

 

 

Oil Seal Kit (1 kit/pump) 

 

 

 

 

            X

 

(See page 7 for kit list)

 

  

Valve Spare Parts (1 kit/pump)   

 

 

 

 

            X

 

(See page 7 for kit list) 

 

 

 

 

 

 

 

 

 

 

 

   

 

  

 

MALFUNCTION

 

CAUSE

 

REMEDY

The Pressure and/ 

Worn packing seals 

Replace packing seals

or the Delivery 

Broken valve spring 

Replace spring

Drops 

Belt slippage 

Tighten or Replace belt

 

Worn or Damaged nozzle 

Replace nozzle

 

Fouled discharge valve 

Clean valve assembly

 

Fouled inlet strainer 

Clean strainer

 

Worn or Damaged hose 

Repair/Replace hose

 

Worn or Plugged relief valve on pump 

Clean, Reset, and Replace worn parts

 

Cavitation 

Check suction lines on inlet of  

 

 

 

pump for restrictions

 

Unloader 

Check for proper operation

Water in crankcase 

High humidity 

Reduce oil change interval

 

Worn seals 

Replace seals

Noisy Operation 

Worn bearings 

Replace bearings, Refill crankcase  

 

 

oil with recommended lubricant

 

Cavitation 

Check inlet lines for restrictions

 

 

and/or proper sizing

Rough/Pulsating 

Worn packing 

Replace packing

Operation with 

Inlet restriction 

Check system for stoppage, air  

Pressure Drop 

 

leaks, correctly sized inlet   

 

 

 

plumbing to pump

 

Accumulator pressure 

Recharge/Replace accumulator

 

Unloader 

Check for proper operation

 

Cavitation 

Check inlet lines for restrictions    

 

 

and/or proper size

Pressure Drop at Gun 

Restricted discharge plumbing 

Re-size discharge plumbing to    

 

 

flow rate of pump   

 

 

 

   

Excessive 

Worn plungers 

Replace plungers

Leakage 

Worn packing/seals 

Adjust or Replace packing seals

 

Excessive vacuum 

Reduce suction vacuum

 

Cracked plungers 

Replace plungers

 

Inlet pressure too high 

Reduce inlet pressure

High Crankcase 

Wrong Grade of oil 

Giant oil is recommended 

Temperature 

Improper amount of oil in crankcase 

Adjust oil level to proper amount

Содержание P400-5100 Series

Страница 1: ...e Shooting Chart page 11 Recommended Spare Parts List page 11 Dimensions back page Warranty Information back page Updated 04 18 Triplex Ceramic Plunger Pump Operating Instructions Repair and Service Manual Models P420A 5100 P420A 5111 P420A 5121 P422 5100 P423 5100 P425 5100 P425 5111 P425 5121 316 Stainless Steel Corrosion Resistant Pumps 22mm 25mm Versions 5100 Standard Seals 5111 Viton Seals Vi...

Страница 2: ...at maximum permissible pump revolu tions Operation and Maintenance Check oil level prior to starting and ensure trouble free water supply Important If there is a danger of frost the water in the pump and in the pump fittings par ticularly the unloader valve must be emptied The second discharge port can also be used and the pump run dry for 1 2 minutes for this purpose Oil Use only 30 4 ounces 0 9 ...

Страница 3: ...ate beyond one or more of the limits specified above SPECIAL NOTE The theoretical gallons per revolution gal rev is 0 00883 To find specific outputs at various RPM use the formula GPM 0 00883 x RPM U S Metric Volume Up to 12 8 GPM 48 4 LPM Discharge Pressure Up to 2200 PSI 150 bar Power Required 19 2 BHP 14 3 kW Inlet Pressure 4 35 to 145 PSI 0 3 to 10 bar Stroke 0 945 24mm Crankshaft Speed Up to ...

Страница 4: ...e specific pump horse power requirements use the following formula HP GPM X PSI 1450 SPECIAL NOTE The theoretical gallons per revolution gal rev is 0 00679 To find specific outputs at various RPM use the formula GPM 0 00679 x RPM Specifications Model P422 5100 U S Metric Volume Up to 9 9 GPM 37 3 LPM Discharge Pressure Up to 2600 PSI 180 bar Power Required 17 7 BHP 13 2 kW Inlet Pressure 4 35 to 1...

Страница 5: ...p horse power requirements use the follow ing formula HP GPM X PSI 1450 SPECIAL NOTE The theoretical gallons per revolution gal rev is 0 00566 To find specific outputs at various RPM use the formula GPM 0 00566 x RPM Specifications Model P423 5100 U S Metric Volume Up to 8 2 GPM 31 1 LPM Discharge Pressure Up to 3000 PSI 200 bar Power Required 16 4 BHP 12 2 kW Inlet Pressure 4 35 to 145 PSI 0 3 to...

Страница 6: ...6 EXPLODED VIEW P400 5100 Series 22mm 25mm ...

Страница 7: ...mm C and D 3 23A 06251 0100 Spacer Ring C and D 3 23B 12255 Weep Seal A and B 3 23B 13390 Weep Seal C and D 3 24 08376 Pressure Ring A and B 6 24 06252 Pressure Ring C and D 3 25 06373 Weep Return Ring A and B 3 25 06254 0100 Weep Return Ring C and D 3 26 06255 5000 Manifold 1 27A 08408 0100 Valve Assembly 6 27 08370 0100 Valve Seat 6 28 06791 0100 Valve Plate 6 29 06377 0100 Valve Spring 6 30 083...

Страница 8: ...quirements use the following formula HP GPM X PSI 1450 SPECIAL NOTE The theoretical gallons per revolution gal rev is 0 00738 To find specific outputs at various RPM use the formula GPM 0 00738 x RPM Specifications Model P425 5100 U S Metric Volume Up to 10 7 GPM 40 4 LPM Discharge Pressure Up to 2500 PSI 170 bar Power Required 18 1 BHP 13 5 kW Inlet Pressure 4 35 to 145 PSI 0 3 to 10 bar Stroke 0...

Страница 9: ... and the valve spring retainer 30 the valve assembly can be separated 4 Remove the O ring 31 Inspect all parts for wear and replace as necessary Apply one drop of loctite 243 to the valve plugs 32 and tighten to 107 ft lbs 145 NM 5 Use a 8mm allen wrench to remove the 8 socket head cap screws 34 Carefully slide the valve casing 26 out over the plungers 6 Remove seal adapters 20 and weep return rin...

Страница 10: ...al sits and where the plunger base 16A moves through the crankcase 1 10 If the plunger pipe 16B is damaged or worn remove tension screw 16D and plunger pipe 16B Check and clean plunger surface 16A and check flinger 16H Cover thread of tension screw 16D with a thin film of Loctite 243 and tighten carefully to 22 ft lbs 30NM Repair Instructions P420A 5100 P422 5100 P423 5100 and P425 5100 Pump Torqu...

Страница 11: ...let of pump for restrictions Unloader Check for proper operation Water in crankcase High humidity Reduce oil change interval Worn seals Replace seals Noisy Operation Worn bearings Replace bearings Refill crankcase oil with recommended lubricant Cavitation Check inlet lines for restrictions and or proper sizing Rough Pulsating Worn packing Replace packing Operation with Inlet restriction Check syst...

Страница 12: ...ations made by the customer or third party 6 The operation of pumps and or accessories exceeding the specifications set forth in the Opera tions Manuals provided by Giant Industries Inc Liability under this warranty is on all non wear parts and limited to the replacement or repair of those products returned freight prepaid to Giant Industries which are deemed to be defective due to workmanship or ...

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