Stanley 73482 Instruction And Service Manual Download Page 15

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•

Screw the *Piston Bullet - Front on to the front of the Piston

•

Place the Body

nose up on a bench. Then using a soft mallet, tap the Piston

towards the rear of the Body and out the

back end, taking care not to damage the bore within the Body.

•

Note that when removing the Piston

, oil on the pull side of the Piston will leak from the front and rear of the Body

•

When removing the Piston

, the Front Seal Gland

may be retained on the Piston shaft. If this is the case, unscrew

the *Piston Bullet - Front and pull the Front Seal Gland off of the Piston.

•

Using a small fl at screwdriver remove Piston Seal

and the two Anti-Extrusion Rings

, from the external groove

on the Piston

, and discard. When removing the seals, take care not to damage the surface of the Piston with the

screwdriver.

•

If the Front Seal Gland

is still retained in the Body

. Place the Body nose up on a bench and then push the Front Seal

Gland from the front until it is free from the recess within Body. The Front Seal Gland can then be removed from the
back end of the Body. Take care not to damage the bore within the Body when doing so.

•

Using a small fl at screwdriver remove O-Ring

and Spiral Back-up Ring

, from the external groove on the Front Seal

Gland

, and discard. When removing the seals, take care not to damage the surface of the Front Seal Gland with the

screwdriver.

•

Remove Rod Seal

and Wiper Seal

, from the internal grooves on the Front Seal Gland

, and discard. When

removing the seals, take care not to damage the surface of the Front Seal Gland with the screwdriver.

•

Remove the Front Bearing Ring

and check the part for wear or damage. Discard if necessary.

•

Using a small fl at screwdriver, remove O-Ring

from the Body

and discard.

•

Remove the spare *Quick Coupler - Female from the Quick Coupler – Male

on the Hydraulic Hose – Pull

•

Do not remove Set Screw

from the Body

Assemble in reverse order to dismantling noting the following points:

•

Clean all components before assembling.

•

To aid assembly of seals apply a light coating of Molykote

111 grease to all seals, seal grooves, back-up rings and the

assembly tools.

• Slide

O-Ring

over the Front Seal Gland

and into the external groove. Insert the Spiral Back-up Ring

in the same

groove, in front of the installed O-Ring. Refer to the General Assembly and Parts List for the correct orientation of the
O-Ring and Spiral Back-up Ring.

•

Press the Front Bearing Ring

into the internal recess within the Front Seal Gland

and then install Rod Seal

behind the Front Bearing Ring. Install the Wiper Seal

in the front recess of the Front Seal Gland. Refer to the

General Assembly to ensure the correct orientation of the Rod Seal and Wiper Seal.

•

Lubricate the surface and leading edge of the Body

bore into which the Front Seal Gland

is to be installed with

Molykote

111 grease.

•

Lubricate the spigot on the *Front Gland Guide Rod tool and then place the Front Seal Gland

, Rod Seal

end fi rst,

fully over spigot.

•

Insert *Front Gland Guide Rod into the rear of the Body

and then push the Front Seal Gland fully into the bore within

the Body. Reasonable force is required to insert Front Seal Gland into the Body, so the use of a press or vice may be
necessary. Remove the *Front Gland Guide Rod while ensuring that the Front Seal Gland stays in place.

•

Lubricate the seal groove and major external diameter of the Piston

with Molykote

111 grease. Slide the Piston Seal

over the front of the major Piston diameter and into the seal groove. Install two Anti-Extrusion Rings

into the

Piston seal groove, one either side of the Piston Seal.

•

Screw the *Piston Bullet - Front on to the front of the Piston

. Lubricate the *Piston Bullet - Front, Piston shaft and

Piston Seal

with Molykote