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19.0 cu. in. 2-Bolt Hydraulic disc Valve Geroler Motor
8490690
15. Separate the output shaft (4) from the needle bearing (6),
spacer bushing (7), and lock nut (8).
CLEANING AND PREPARING COMPONENTS
1. Check all mating surfaces for scratches and burrs that may
create openings for leaks to occur. Replace any
damaged parts.
2. Clean parts in a compatible solvent and blow-dry with air. Do
not use paper or fabric to dry parts - if fibers are left behind
they could damage the hydraulic system.
NOTICE! Ketone based solvents like acetone or methylene
chloride can damage Viton seals. Take precautions to
prevent solvents from coming in contact with the seals. If
contact occurs, replace the seal to prevent the possibility of
leaks while under pressure - even if there does not appear to
be any damage,
3. Check the areas that will contact the seals during reassembly
for burrs or sharp edges. Remove nicks and burrs with a
stone made of novaculite (also called Arkansas stone). Do
not use a file or grinder to remove the edges.
4. Lubricate all mating surfaces with grease or petroleum jelly
during reassembly.
5. Replace the shaft before replacing the seals and O-rings.
REPLACING THE SHAFT
1. Mark the rear end of the shaft to identify the location of the
commutation slot. This will be required later to set the
shaft rotation.
2. Apply petroleum jelly or lubricant to the shaft.
3. Insert the shaft's base into the housing (2) without forcing
it. When the wide part of the shaft is positioned, gently tap
the end of the shaft with your fingers until it slides into place.
Once in place, push down to seat the shaft.
4. Go to section Rebuild the Motor.
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