Graco 24H853 Repair Instructions Download Page 14

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All written and visual data contained in this document reflects the latest product information available at the time of publication.

Graco reserves the right to make changes at any time without notice.

For patent information, see www.graco.com/patents.

Original instructions. This manual contains English. MM3A1494

Graco Headquarters:

Minneapolis

International Offices:

Belgium, China, Japan, Korea

GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440-1441

www.graco.com

November 2014

Graco Information

For the latest information about Graco products, visit www.graco.com.

TO PLACE AN ORDER,

contact your Graco distributor or call to identify the nearest distributor.

Phone:

612-623-6928

or Toll Free:

1-800-533-9655,

Fax:

612-378-3590

Summary of Contents for 24H853

Page 1: ...ure 150 psi 1 03 MPa 10 3 bar Repair Kits 24H853 Throat and Piston Seal Replacement Kit 24K293 O Ring Replacement Kit for 3 1 pumps 24H855 O Ring Replacement Kit for 5 1 pumps 24U230 Air Piston Replacement Kit Important Safety Instructions Read all warnings and instructions in this manual and in your LD Series Oil or Grease Pump man ual Save all instructions EN ...

Page 2: ...ou stop spraying and before cleaning checking or servicing equipment Tighten all fluid connections before operating the equipment Check hoses and couplings daily Replace worn or damaged parts immediately PRESSURIZED ALUMINUM PARTS HAZARD Use of fluids that are incompatible with aluminum in pressurized equipment can cause serious chemical reaction and equipment rupture Failure to follow this warnin...

Page 3: ...e for completely disassembling the LD oil pump Depending on the repair maintenance procedure you are performing on the pump it may not be necessary to entirely disassemble the pump or perform all steps in this procedure The reference numbers used in the following instruc tions correspond to the reference numbers used in the LD Series Oil and Grease Pump instruction manual 1 Stop the pump Follow Pr...

Page 4: ...om the flange 29 Fig 3 NOTE After a few turns the fluid cylinder should be loose enough to finish loosening it with your hand to remove this part 6 Using a 10 mm socket wrench remove the 4 screws 43 from the air valve 38 and completely remove air valve assembly from air cylinder 27 Also remove the two cover gaskets 25 If you are replacing these parts discard gaskets Fig 4 Repair and replacement in...

Page 5: ...move the air cylinder 27 from the vise 9 Lay the flange assembly on a hard clean work sur face Use an adjustable wrench to hold the displace ment rod 30 securely in place Use a 13 mm wrench to loosen bolt 18 Remove bolt 18 and washer 19 Fig 6 and Fig 7 NOTE Do not use a hex wrench on the oil piston 33 or ball holder 34 to loosen or tighten Using a hex wrench on this part could cause the pin 10 Fig...

Page 6: ...ement kit For all reassembly procedures Clean all the parts carefully in a compatible solvent and inspect for wear or damage Use all the repair kit parts during reassembly and replace other parts as necessary Check the polished surfaces for scratches or wear Lubricate all parts with a light water resistant grease 1 Install new o rings and seals in bottom cover 26 and flange 29 as described in the ...

Page 7: ...e to all o rings and seals 8 Slide air cylinder 27 over the bottom cover 26 Fig 14 9 Remove the assembly from the vise and place the top of the air cylinder down on a clean hard surface Use the palms of your hands to press the bottom cover 26 firmly into the air cylinder 27 as shown in Fig 15 10 Secure assembly in vise as shown in Fig 16 Install 5 screws 4 wrench tight only NOTE If installing a ne...

Page 8: ...move the 4 screws 43 b Remove the air valve 38 from its current mounted position on the air cylinder 27 and rotate the air valve 180 degrees which will reposition the muffler to face the other side of the pump 16 Install new o rings around pump piston 33 Fig 16 fluid cylinder 32 and intake valve housing 28 Fig 18 as described in the O Ring Replacement Kit 24H855 or 24K293 page 11 Be sure to apply ...

Page 9: ...or 24H855 for 5 1 pumps Replacement parts for o ring 5 installed on air piston 21 o rings and u cup seal 6 7 9 and 17 installed in bottom cover 26 o ring 8 installed on flange 29 and gasket 25 used later in reassembly of the air valve 38 O ring 55 is installed between the air piston 21 and displacement rod 30 1 Use a pick to remove the o ring 5 installed around the circumference of the air piston ...

Page 10: ...e u cup seal 9 is installed with the lips facing down as shown in Fig 21 3 Remove and discard the 3 small o rings 17 in the bottom cover 26 Fig 22 Grease the new o rings 17 included in the kit and install them in the bottom cover housing 4 Use a pick to remove o rings 8 and 14 from the flange 29 Fig 23 Grease and replace the o rings as shown in Fig 23 5 Reassemble the pump as described in the Reas...

Page 11: ... ring included in the kit and install it around the pump piston 2 Use a pick to remove the o ring 15 installed on the intake valve housing 28 Fig 25 Grease the new o ring included in the kit and install it inside the intake valve housing 3 Reassemble the pump as described in the Reas sembly instructions page 6 Air Piston Replacement Kit 24U230 Series B Ref Description Qty 13 O RING 1 14 O RING 1 1...

Page 12: ...lacement rod 30 as shown in Fig 28 3 Apply Loctite 262 to the bolt 18 Install the washer 19 and bolt 18 Hold the displacement rod 30 with an adjustable wrench and use a13 mm wrench to tighten the bolt securely Torque bolt to 155 160 in pounds 17 5 18 0 N m Fig 29 NOTE Loctite is a registered trademark of the Loctite Corporation 4 Remove pilot valve 20 from the old air cylinder 27 Apply a light coa...

Page 13: ...E The five screws 4 are thread forming screws and as a result the mating holes in the air cylinder 27 are not threaded by design 8 Continue reassembly instructions Steps 9 18 beginning on page 7 9 Use a permanent marker to record the pump part number serial number and series code shown the original label located on the old air cylinder onto the new label 101 included in the kit 10 Apply label 101 ...

Page 14: ...nual contains English MM3A1494 Graco Headquarters Minneapolis International Offices Belgium China Japan Korea GRACO INC P O BOX 1441 MINNEAPOLIS MN 55440 1441 Copyright 2011 Graco Inc is registered to ISO 9001 www graco com November 2014 Graco Information For the latest information about Graco products visit www graco com TO PLACE AN ORDER contact your Graco distributor or call to identify the nea...

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