Repair; Fluid Seal Replacement - Graco 24S134 Operation, Parts

Repair

Repair
Repair involves the removal and replacement
of worn or damaged parts.
U-cup seals are very fragile. Never pound on
seal when during assembly.

Fluid Seal Replacement

For Non-bleeder guns use Seal Replacement
Kit, 287228. For bleeder guns use Seal
Replacement Kit, 287338.
1. Remove retaining ring (11), nozzle (28),
and needle assembly (9) through front
of gun.
2. Use a hook-shaped object to carefully
pull up-cup retainer and u-cup out of gun.
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NOTICE
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3. Using your finger or a 1/2-in. diameter
rod, push new seal (3) in place. Make
sure seal is seated against sleeve
bearing (35).
4. Insert u-cup retaining ring (41). Make
sure retaining ring is seated against
u-cup (3).
5. Graco recommends you replace the
entire fluid needle assembly at this time,
including the needle (9) spring (5),
packing o-ring (6) and guide (7).
6. Trigger gun a few times to make sure
u-cup and retainer are securely in place.
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