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10

Pump System Malfunction

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

Check

Daily Weekly 50 Hrs. Every 

500 Hrs.

Every 

1500 Hrs.

Every 

3000 Hrs.

Oil Level/Quality

X

Oil Leaks

X

Water Leaks

X

Belts, Pulley

X

Plumbing

X

Oil Change                         

(1 Gallon) p/n 01154

X

X

Plunger Seal Kit                

(1 kit/pump)  See page 5

X

Valve Repair Kit               

(2 kits/pump) See page 5

X

Preventative Maintenance Check List  & Recommended Spare Parts List

Recommended Spare Parts

Содержание LP200-SS

Страница 1: ...e 5 Repair Instructions pages 6 9 Torque Specifications page 9 Pump Mounting Selection Guide page 9 Trouble Shooting page 10 Maintenance Spare Parts List page 10 Dimensions page 11 Warranty Informatio...

Страница 2: ...l cir cumstances be consulted with regard to the resistance of the pump material It is the re sponsibility of the equipment manufacturer and or operator to ensure that all pertinent safety regulations...

Страница 3: ...fied when selecting an electric motor as the power source To compute specific pump horsepower requirements use the following formula HP GPM X PSI 1440 PULLEY INFORMATION Pulley selection and pump spee...

Страница 4: ...4 Exploded View LP200 SS...

Страница 5: ...IPTION QTY 30 07779 Drip Shield 3 31 07133 Radial Shaft Seal 3 35 13196 Seal Sleeve 3 36 13228 Leakage Seal 3 37 07170 Seal Case 3 38 07140 O Ring 3 38A 12055 O Ring 3 39 13197 Pressure Ring 3 40 1311...

Страница 6: ...Take out discharge valve assemblies 46 by pull ing them upwards out of the valve casing 43 with a snap ring tongs or any other pull off device Then remove inlet valves in the same way 4 Loosen valve...

Страница 7: ...rface of plunger 25 thoroughly Apply a thin coat of Loctite to the tension screw threads 29C Note Care must be taken that no glue gets between the plunger pipe 29B and the centering sleeve 29A Add new...

Страница 8: ...to 59 ft lbs 80 Nm LP200 SS Torque Specifications Position Item Description Lubrication Info Torque Amount 1 07759 Crankcase Molycote Cu Paste 6 05943 Oil Sight Glass Loctite 572 29 ft lbs 40 Nm 10 01...

Страница 9: ...aring ring until the outer edge lines up with the outer edge of the bearing hole Remove bearing cover 14 together with radial shaft seal 15 and o ring 16 Fit crank shaft 22 through bearing hole on the...

Страница 10: ...riction 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...

Страница 11: ...11 Pump Dimensions Inches mm...

Страница 12: ...tear to standard wear parts 3 Use of repair parts other than those manufactured or authorized by Giant 4 Improper use of the product as a component part 5 Changes or modifications made by the customer...

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