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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

Pump Pressure as 

Restricted discharge plumbing 

Re-size discharge plumbing to    

Drop at gun 

 

flow rate of pump 

 

 

Rated, Pressure

 

 

 

 

 

 

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 GP7532GB

Страница 1: ...iew page 4 Parts List page 5 Kits page 6 Torque Specifications page 6 Maintenance Information page 6 Repair Instructions pages 7 9 Warranty Information back page Triplex Ceramic Plunger Pump Operating...

Страница 2: ...particularly the unloader valve must be emptied The second dis charge port can also be used and the pump run dry for 1 2 mintues for thes purpose IMPORTANT OPERATING CONDITIONS Failure to comply with...

Страница 3: ...0 RPM 83 GP7532GB Pump Specifications Consult the factory for special requirements that must be met if the pump is to operate beyond one or more of the limits specified above Decible Chart This figure...

Страница 4: ...4 Exploded View GP7532GB...

Страница 5: ...leeve 3 39A 13360 Grooved Ring 3 41 06095 Pressure Ring 3 42 06096 V Sleeve 6 43 06097 Sleeve Support Ring 3 ITEM PART DESCRIPTION QTY 45 06098 Tension Spring 3 49 13159 Stud Bolt 8 49A 13160 Nut 8 50...

Страница 6: ...O Ring 3 GP7532GB TORQUE SPECIFICATIONS Position Item Description Torque Amount 24 05777 Fitting Screw for Connecting Rod 30 ft lbs 40 Nm 36A 07667 Plunger Base 33 ft lbs 45 Nm 36C 07664 Tensioning Sc...

Страница 7: ...52C are pressed out of spacer pipe 51F by hitting the valve plate 51D 52D with a bolt 4 Check surfaces of valve plate 51D 52D valve seat 51C 52C O rings 51B 58A and support rings 51A 58B and replace w...

Страница 8: ...r support rings 38B are damaged replace with new parts 38A 38B 38 38B 38A 36 10 Take tension spring 45 and seal pack 41 42 43 out of seal sleeve Take a thin screw driver and pry out the grooved ring 3...

Страница 9: ...25 with an open end wrench M36 to 33 ft lbs 45 Nm 13 Push valve casing carefully onto O rings of seal case and centering studs 50A Tighten nuts 49A to 103 ft lbs 140 Nm To Disassemble Gear 14 Take out...

Страница 10: ...ith 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...

Страница 11: ...11 GP7532GB Pump Dimensions inches mm...

Страница 12: ...2 Normal wear and 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 ma...

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