Seal kits for the new cylinders are the same as for the old cy ind.ers_ as a!l me internal components are the same,

bore diam

old cylinder

new c_inder

sealkit

 

4,0"

718-0307

718-0773

753-0490

 

4.5"

718-0306

718-0769

753-0563

 

To; ¸

DISTRIBUTORS

& AUTHORIZED

SERVICE DEALERS

Re:

LOG

SPLITTER

SEAL KITS

 

As of February 1. 1999. log splitter cylinders under warranty capable of being repmred with a seal kit must be repaired. Any cylinders replaced under warranty will be called back for inspection. Any cylinder found to be repairable will be returned to the dealer and the dealer will be charged back the amount paid on the claim for the cylinder. Labor already paid will not be charged back. If replacement is determined to have been the only solution to the problem, no action will be taken. If you have any questions regarding this policy or how to handle a situation please contact MTD service.

If you need a pressure test kit (part # 759-3742), contact your central distributor. This kit includes

an ins,_"uc=ional video and is a,:ailable for loan or purchase. You will be rei_b'arsed for t_hc cost of

shipping and handling on a warranty job if you used a test kit on loan and include the amount on the claim form.

Seal kits are as follows.

Fisher cylinders (retaining ring end cap):

Md_J

CYLINDER NUMBER

CYLINDER I.D.

SEAL KIT

 

_z._,...>718-0306

4.5"

753-0563

 

_zb-e 718-0307

4.0"

753-0490

 

718-0312

4.25"

753-0637

 

718-0313

5.0"

75320564

Best Metal cylinders

(thread

on end cap):

CYL NDER NOMBER

[ CYLINDER

I.D.

SEAL KIT

718-0307

[

4.0"

 

753-0689

718-03'13

!

5.0 _''

753-0691

Procedure for Resealing Hydraulic Cylinders

(On Machine - Fisher Cylinders - Snap-Ring Type)

1.Clean cylinder, wedge and beam area.

2.Fully retract cylinder rod into cylinder - stop engine.

3.With engine off, move control valve back and forth several times to be sure there is no pressure in system.

4.With a clean catch container in place, disconnect pump to control valve hose from pump fitting and in_ert end into container. Plug fitting on pump with plastic cap or tape. This is to prevent dirt from entering fitting,

5.Remove (4) ¥I" bolts securing the log dislodger and remove dislodger.

6, Remove %" bolt through wedge and cylinder rod. Slide wedge all the way forward on the beam till it meets the base plate. No need to remove wedge from beam,

Z.Lift rod up and place wood block under cylinder barrel to hold assembly at an angle, This will allow for rod removal

8.Place control valve into detent position

9, Using a wood dowel or a hammer handle, tap cylinder rod cap into cylinder just beyond the snap ring. Do not go any farther than necessary as it will make further disassembly very dit_cult. Remove snap ring from groove being careful not to scratch groove or bore. If you do, you must polish scratched area with fine emery so scratch won't damage new seals as they pass the area It is an easy job if you tap one end of snap ring into the cylinder first, and then get a medium screwdriver under the ring to pry it our.

10.Reconnect and tighten hose to pump.

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Craftsman 79964 manual MdJ, Cylinder Number Cylinder I.D Seal KIT

79964 specifications

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