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Using a small spade (flat) screwdriver, locate the end of the spiral retainĆ
ing ring holding the rod bushing in its cavity. Pick the end of the spiral
retaining ring, easily pry upwards to begin removal of the spiral ring from
the retaining groove.
When the spiral retaining ring is free from its retaining groove, slide the
rod bushing off the end of the piston rod. The rod bushing retains three
replaceable seals. Remove the O" ring located at the base (o.d.) of the
bushing. The other two seals are internal to the bushing. Using the same
screwdriver, pick the rod wiper from its retaining groove. Next, remove
the rod seal in the same manner.
Before attempting to replace seals, it is advisable to coat them with a film
of standard grease to ease installation.
Replace the rod seal (it is a U" cup seal) by squeezing the seal to posiĆ
tion one end into its retaining groove and then pressing the seal downĆ
wards inside the bushing until the seal seats in its retaining groove.
Gently use the screwdriver if necessary, being careful not to cut the seal.
The seal lip" should face the base of the bushing, as illustrated.
Replace the rod wiper by squeezing it to position one end into its retainĆ
ing groove. Press downwards on the wiper to seat it into its retaining
groove. Gently use the screwdriver if necessary, being careful not to
damage the rod wiper. The lip" of the rod wiper should face up (toward
you), as illustrated.
Place the O" ring into the cylinder head cavity.
Place the bushing over the end of the piston rod and slide it into its cavity.
Press the bushing into its cavity. Using the small screwdriver, push the
end of the spiral retaining ring into its groove. Work counterclockwise
around the bushing with the screwdriver to press the spiral retaining ring
into its groove.
WARNING
Rod Wiper
Rod Seal (“U” Cup)
“O” Ring Bushing Seal
Remove (4) cap screws from the retaining plate. When the retaining
plate is free, slide the rod bushing off the end of the piston rod. The rod
bushing retains three replaceable seals. Remove the O" ring located at
the base (o.d.) of the bushing. The other two seals are internal at the top
of the bushing. Using a small screwdriver, pick the rod wiper from its reĆ
taining groove. Next, remove the rod seal in the same manner; it is loĆ
cated slightly further inside the bushing from the rod wiper.
Before attempting to replace seals, it is advisable to coat them with a film
of standard grease to ease installation.
Replace the rod seal (it is a U" cup seal) by squeezing the seal to posiĆ
tion one end into its retaining groove and then pressing the seal downĆ
wards inside the bushing until the seal seats in its retaining groove.
Gently use the screwdriver if necessary, being careful not to cut the seal.
The seal lip" should face the base of the bushing, as illustrated.
Replace the rod wiper by squeezing it to position one end into its retainĆ
ing groove. Press downwards on the wiper to seat it into its retaining
groove. Gently use the screwdriver if necessary, being careful not to
damage the rod wiper. The lip" of the rod wiper should face up (toward
you), as illustrated.
Place the O" ring onto the base of the rod bushing, making sure it is
seated into its retaining groove.
Place the bushing over the end of the piston rod and slide it into its cavity.
Press the bushing into its cavity. Replace the retaining plate on the cylinĆ
der and retighten the (4) cap screws to 12 ft lbs (16.3 Nm).
Rod Wiper
Rod Seal (“U” Cup)
“O” Ring Bushing Seal