Graco h30 - Repair the Check Valves

Repair
32 3A9286B
Repair the Check Valves
See FIG. 12–FIG. 13.
Disassemble Check Valves
1. Follow Prepare Equipment for Repair, page 31.
2. Drain the equipment.
For equipment with a rotating stand: Remove the
quick-release pins (29b) and rotate the equipment
to drain. See F
IG. 12.
NOTE: After draining, rotate the equipment to
positions which will aid disassembly.
FIG. 12: Quick Release Pin, Rotating Stand
3. On the outlet manifold (4), remove all clamps (7a).
4. Remove the outlet manifold (4), seals (10, 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 clamps (7a).
6. Remove the inlet manifold (5), seals (10, 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), 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 clamps (7a) to loosely attach the manifolds
(4, 5) to the fluid covers (3). After all components
are properly aligned, securely tighten the clamps
(7a).
FIG. 13: Check Valves
To avoid severe burns, do not touch hot fluid or hot
equipment.
29b
4
5
9
8
10
9
8
10
7a
3
7a
2
2
Lubricate clamps (7a) and seals (10) with a
waterproof, sanitary lubricant.
2
2
2
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