Graco QUANTM i30 - Repair the Check Valves

Repair
3A8572B 33
Repair the Check Valves
Required Tools:
• 10 mm socket wrench (for all i30 (QTC) models, i80
(QTD) plastic models, and i120 (QTE) plastic
models)
• 13 mm socket wrench (for i80 (QTD) metal models
and i120 (QTE) metal models)
See F
IG. 14.
Disassemble Check Valves
1. Follow Prepare Equipment for Repair, page 32.
2. Drain the equipment.
NOTE: After draining, rotate the equipment to
positions which will aid disassembly.
3. On the outlet manifold (4), remove all fasteners (6).
4. Remove the outlet manifold (4), seals (10, if
applicable), guides (9b, if applicable), checks (9),
and seats (8).
NOTE: Use care while removing manifolds to avoid
damage to check valve components.
5. On the inlet manifold (5), remove all fasteners (6,
6b, if applicable).
6. Remove the inlet manifold (5), seals (10, if
applicable), guides (9b, if applicable), checks (9),
and seats (8).
NOTE: Use care while removing manifolds to avoid
damage to check valve components.
7. Clean and inspect parts for wear or damage.
Replace as needed.
Reassemble Check Valves
1. Align and place seats (8), checks (9), guides (9b, if
applicable), seals (10, if applicable), and manifolds
(4, 5), exactly as shown for your equipment model.
See your related parts manual. See Related
Manuals, page 2.
2. Use the fasteners (6, 6b, if applicable) to loosely
attach the manifolds (4, 5) to the fluid covers (3).
After all components are properly aligned, torque
the fasteners (6, 6b, if applicable) on the manifolds
(4, 5). See Torque Fasteners, page 39.
FIG. 14: Check Valves
To avoid severe burns, do not touch hot fluid or hot
equipment.
4
6
5
9
8
10
9
8
10
6, 6b
3
1
1
See Torque Fasteners, page 39.
1