5 |
4 | 4 |
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3 |
4 | 4 |
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| 3 | 3 |
T O O L S |
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REQUIRED |
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| 4 |
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- | 3 / 6 4 " | 4 |
| A l l e n |
4 | wrench | 4 |
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1. O p e n |
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| p r i m e |
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valve, (ref# 36) to release pressure from material side of pump. |
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2.Remove prime valve return hose, (ref# 51) from prime valve return fitting, (ref# 50).
3.Place wrench on prime valve connector, (ref# 37). Turn
4.Secure valve in vise, with valve stem, (ref# 46) upward.
5.To install new valve stem, or valve stem seals, (ref# 44 or 45), continue at step 6. If replacing prime valve repair kit, (ref# 42) continue at step 9.
6.Use Allen wrench to remove valve stem set screw, (ref# 48).
7.Remove stem and inspect for wear or damage. Replace as required.
8.Thread repaired stem into packing nut, (ref# 43) until in closed position. Turn in set screw until tight on valve stem. Loosen set screw 1/2 turn or until stem moves freely in packing nut.
NOTE: Valve stem should not be able to be removed from packing nut, if set screw is adjusted correctly.
9.Use wrench to remove valve stem packing nut assembly, (ref# 49) from body, (ref# 38).
10.Remove ball from valve stem. NOTE: If ball does not drop free, remove with the aid of a knife.
11.Remove seat, (ref# 40) and crush washer, (ref# 39) from valve body.
12.Install new crush washer and seat, ensuring the seat is positioned correctly. The seat has both a beveled inside edge and a beveled outside edge. The beveled inside edge will be facing the valve ball when positioned correctly. Place new ball onto end of stem.
13.Rotate stem
14.Place packing nut assembly, (ref# 49) into valve body. Torque to 12 foot pounds.
15.Complete steps 3 and 2 of removal.
PRESSURE CONTROL VALVE
(REF# 74)
H.E.R.O. INDUSTRIES | 27 | 1150GSD MANUAL - “B” VERSION |
