Instruction Manual

Hydraulic Bearing Piston and Seal Replacement Instruction

The McLeod hydraulic throw out bearing assembly is adjustable by easily changing the piston in the

assembly. The seals can easily be replaced and serviced by the installer as well. This instruction is

intended to make this process easy to understand and reassemble the hydraulic throw out bearing

correctly.

Step 1 Remove the bearing assembly from the transmission. Place caps over the end of the AN-4 hose to

keep from dripping oil onto the floor and work surface.

Step 2 Grab the bearing and firmly pull to remove the bearing from the hydraulic assembly. It is only

held in position with an O-Ring. Set the bearing aside. See Figure 1

Figure 1 Bolt on Bearing Assembly Shown Slip-On Style Bearing Shown Figure 2

Step 3 If you are disassembling a Slip-On style bearing you will need to remove the 8 screws from the

bottom of the bearing assembly to disassemble the unit. See Fig 2

To separate the Upper and Lower Housings turn bearing assembly over with the lower housing facing up.

Hold a hose in each hand. Drop bearing assembly so piston makes contact with a 2 x 4 piece of wood.

This may require two attempts. This should separate the upper and lower housing. Do not attempt to

wedge the Upper and Lower housings with a screw driver or similar metal tool! See Figure 3.

Pull the two pieces apart exposing the black piston. Remove the piston from the housing.

If only changing Pistons skip to step 10.

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Hydraulic Bearing Piston and Seal Replacement Instruction The McLeod hydraulic throw out bearing assembly is adjustable by easily changing the piston in the assembly. The seals can easily be replaced and serviced by the installer as well. This instruction is intended to make this process easy to understand and reassemble the hydraulic throw out bearing correctly. Step 1 Remove the bearing assembly from the transmission.
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Step 4 Remove the O-Ring from the Piston Groove. Install new O-Ring from kit. Step 5 Remove the Quad Ring from the ID of the Upper Housing. A small pick can be used to expose a small cross section of the seal to grab with your fingers. Do not cut or pierce the quad ring. Do not gouge the seal groove or housing. Remove the large O-Ring from the bottom of the Upper Housing.
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Step 8 Gently install new Quad Seal into seal groove on Upper Housing. See Figure 5. Lube with brake fluid for ease of installation. Be careful not to roll the Quad Seal! Install new quad ring swivel fitting seal into Upper Housing on each side. Push Swivel fitting into side of Upper Housing and install new spring pins from top into housing. Gently tap spring pins into housing until flush with top of housing. Use a small block of wood to drive the pin into the housing.