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9. Examine Inlet Valve and replace if worn. Inlet valves cannot be reversed if worn. The SS Inlet Valves
may be lapped if not badly worn. Install the SS Inlet Valves with square edges towards the plungers
(round edges towards the discharge). Install the Nylon Inlet Valve with ridged side towards the
discharge.
10. Examine Spacers for wear and replace as needed. Install Spacer on each Plunger Rod with smaller O.D.
towards inlet valve.
11. Examine Springs for damage or fatigue and replace as needed. Place on Plunger Rods.
12. Install Washers next with concave side towards Inlet Manifold.
13. Install Nuts and torque to 55 in. lbs./ 4.6 ft. lbs./ 6.2 Newton meters.
14. Always install new Cotter pins and turn ends to secure in position.
D. Reassembly of the Discharge Valve Assembly:
1. Examine Adapter Spacer O-Rings and replace if worn. Lubricate and install O-Rings and Back-up-Rings
on both front and rear of the Adapter Spacer.
2. Examine the Valve Retainers for scale build up or wear and install into each Discharge Manifold port with
tab down into the manifold chamber.
3. Replace worn or damaged Springs and place into Retainers.
4. Examine Valve and Seats for pitting, grooves, or wear and replace as needed.
5. Place Valves over Springs with concave side down.
6. Place Valve Seats on Valves with concave side down.
7. Lubricate O.D. of Adapter/Spacer and insert smaller I.D. into Discharge Manifold ports. Snap into
position. Exercise caution not to cut or pinch O-Rings.
8. Carefully guide Discharge Manifold with Spacers over Plunger Rod ends and press into Inlet Manifold.
9. Replace Socket Head Screws and torque to 115 in. lbs./ 9.4 ft. lbs./ 13 Newton meters.
10. If oil was not changed, be sure oil is at the proper level on the sight gauge.
Torque sequence for tightening the manifold:
3
1
5
X
X
X
X
X
X
6
2
4
section 7 page 7 of 39
Sea Recovery Ultra Whisper Rev. A
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