Repair The Shaft - Graco Triton 308HP Instructions-Parts List Manual

Repair the Shaft

Disassembly
1. Remove the diaphragms. See page 16.
2. Disassemble the air valve. See page 18.
3. Remove the housing (54).
• Sleeve clamp (6) is visible inside the air valve cavity.
Spread the sleeve clamp (6) with pliers DIN 5254A,
nominal size 19, and at the same time, slide the
shaft assembly out from the end where housing (54)
was removed.
The valve carriage (5) will remain free inside the
diaphragm housing.
20
Reassembly
1. Replace o-rings (2) (2 internal o-ring grooves inside
the diaphragm housing and 1 internal o-ring groove
inside housing (54)).
2. Replace shaft sections (7, 42, 43) in shaft assembly.
3. Insert shaft assembly into diaphragm housing
through the valve carriage, spreading the sleeve
clamp to allow full insertion. Be careful to release
sleeve clamp in the correct location along the shaft
to engage it in all three grooves.
4. Reinstall the housing (54)
5. Replace o-rings on the carriage, air valve plate, and
plugs and reinstall the air valve section. (See page
18.)
6. Replace the diaphragms (page 16).
7. Replace the ball check seals (29) (page 22) and
reinstall the fluid covers.
Repair
309479A