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Lehigh JHD, Installation & Operating Instructions Manual

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CATALOG:  JHD-93

JHD CYLINDERS

INSTALLATION & OPERATING INSTRUCTIONS

        REMEMBER . . . .

WHEN PERFORMANCE COUNTS

    SPECIFY LEHIGH

LEHIGH FLUID POWER, INC.

1413 ROUTE 179

  LAMBERTVILLE, NJ 08530
      

www.lehighfluidpower.com

609-397-3487 • FAX# 609-397-0932                                           

ISSUE DATE 1993

         800-257-9515

     

REVISED 7/05

SHOP ONLINE at www.airlinehyd.com

800-999-7378

Summary of Contents for JHD

Page 1: ...UCTIONS REMEMBER WHEN PERFORMANCE COUNTS SPECIFY LEHIGH LEHIGH FLUID POWER INC 1413 ROUTE 179 LAMBERTVILLE NJ 08530 www lehighfluidpower com 609 397 3487 FAX 609 397 0932 ISSUE DATE 1993 800 257 9515 REVISED 7 05 SHOP ONLINE at www airlinehyd com 800 999 7378 ...

Page 2: ...age 1 2 a Loss of Power or No Power 1 2 b Evident Leak at Rod Seal 2 c Leak between the Cylinder Tube and End Caps Heads 2 2 Loud Metallic Impact Noise 2 C General Rebuild Instructions 3 4 1 General Guidelines 3 2 Piston Rod Assembly w Miracalube Lubrication System 3 3 Final Assembly 4 D ED Lock Screw Cylinder Option 4 E Caution Section 5 List of Typical Repair Kit Contents 6 Component Torque Char...

Page 3: ...he cylinder stroke the cylinder using the air line to check the mounting arrangement for misalignment or binding of attached mechanisms The piston rod should extend and retract without any unsteady or jerky motion If the cylinder is equipped with cushions adjust the cushion screws to produce the desired effect for the load speed and air line pressure to which the cylinders will be subjected under ...

Page 4: ...s are properly squared to each other Check for the cylinder tube being seated in the tube groove in the face of each head Figure 3 3 LOUD METALLIC IMPACT NOISE Reference Figure 3 Check the cushion adjustment To increase the cushioning effect turn the cushion screw clockwise facing the screw driver slot in the cushion screw If adjusting the cushion screw does not correct the problem replacement of ...

Page 5: ...d with kit Carefully remove the old piston seals so as not to scratch nick or burr the lip or groove of the piston and gently stretch the new piston seals into the piston grooves Be sure that the flat sides of the seals are positioned towards the center of the piston Figure 1 Place the piston and rod assembly in a horizontal position Remove the Wicking Braided Material and either remove with a sha...

Page 6: ...y positioned relative to the port in the Open Head Figure 3 Check the position of the port in the Closed Head relative to the port position in the Open Head Insert the tie rods and just snug the tie rod nuts Lay the cylinder down on a smooth flat surface with the mounting points of the cylinder supported and square the Open Head to the Closed Head Re snug the tie rods as necessary Turn the bearing...

Page 7: ...ABLE THREAD LOCKER 242 BLUE per package directions Remember to install the Cushion Boss O Ring and Cushion Boss as applicable and the Piston Rod O Ring prior to applying the LOCTITE products Do not allow the LOCTITE products to come in contact with the O Ring s The piston nut is torqued per the following table and the threads staked ANY DEVIATION FROM THE LOCTITE PRODUCT INSTRUCTIONS ASSEMBLY PROC...

Page 8: ...equired 1 set Cushion Boss and Piston O Rings use as required 2 Tube O Rings Supplied in Kits 10 00 Bore Up COMPONENT TORQUE CHART Bore Piston Rod Tie Rod Piston Nut Size Diameter Torque Piston Torque 1 1 2 5 8 1 7 Foot Pounds 30 Foot Pounds 2 5 8 1 12 Foot Pounds 30 Foot Pounds 2 1 2 5 8 1 12 Foot Pounds 30 Foot Pounds 3 1 4 1 1 3 8 28 Foot Pounds 140 Foot Pounds 4 1 1 3 8 28 Foot Pounds 140 Foot...

Page 9: ...SHOP ONLINE at www airlinehyd com 800 999 7378 ...

Page 10: ...SHOP ONLINE at www airlinehyd com 800 999 7378 ...

Page 11: ...SHOP ONLINE at www airlinehyd com 800 999 7378 ...

Page 12: ...H FLUID POWER INC 1413 ROUTE 179 LAMBERTVILLE NJ 08530 609 397 3487 FAX 609 397 0932 www lehighfluidpower com For Toll Free Technical Support Call 800 257 9515 SHOP ONLINE at www airlinehyd com 800 999 7378 ...

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