Sherwood REGULATORS - Manual

4.0 FIRST STAGE PROCEDURES 4.1 TOOLS REQUIRED FOR FIRST STAGE SERVICING – Bench vise – 3/32" Allen wrench – 5/32" Allen wrench – 6" or 8" adjustable wrenches – 15" adjustable wrench – Phillips screwdriver – #10 Torx screwdriver – Sherwood 50 cc Graduated Cylinder (p/n TL110) – Sh...

a. Keep greasy fingertips away from the flow element during servicing. b. Use a clean, dry cloth to wipe the piston surface if it needs cleaning. c. Do not put the piston in a cleaning solution or ultrasonic cleaner. If there is any oil on thesurface, it will coat the piston. d. A coating of grease ...

4.3 ASSEMBLY OF FIRST STAGE 1. The part number for each regulator kit can be found in Sherwood’s Tools, Repair Kit andAccessories - Assembly & Maintenance Guide. The kits contain the minimumparts that mustbe replaced at every annual service interval. The technician will also evaluate the conditi...

13. Install the handwheel and the dust cap onto the yoke. 14. If the first stage has a SAA-5300 DIN adapter installed instead of a standard yoke, see theinstallation instructions given in Sherwood Technical Bulletin #104 for overhaul and installationinstructions of the DIN adapter. 4.4 TESTING OF FI...

C. Intermediate Pressure Test 1. Attach any Sherwood second stage to one of the low pressure ports, and the Sherwoodintermediate pressure gauge (p/n TL119) to another low pressure port. Plug all other ports withappropriate port plugs. 2. Attach the regulator to a tank valve giving a source pressure ...

5.0 SECOND STAGE PROCEDURES 5.1 TOOLS REQUIRED FOR SECOND STAGE SERVICING – Two good quality 6" or 8" (15 or 20 cm) adjustable wrenches – #10 Torx screwdriver – Small Phillips ACR Screwdriver – Size 0 Square Drive (Robertson Head) screwdriver – Side cutting pliers – Sherwood In-line Adjustin...

13. If parts of the lever assembly (stem, spring, lever, etc.) need to be replaced, take apart theassembly with the Sherwood stem socket tool (p/n TL124) Clamp the stem socket tool in abench vice. Insert the square head of the poppet stem into the tool. With a Phillips screwdriver,or preferably a si...

5. Screw the orifice housing onto the threads of the lever assembly. With a 13/16” wrench onthe orifice housing and a Sherwood modified 3/4” deep socket (clamped in a vise) on the hexof the lever support inside the case, tighten the orifice housing and the lever assemblytogether snugly (70 in. lbs. ...

D. External Air Leaks 1 Attach the regulator first stage to a tank short enough to totally submerge the first and secondstage in your filling station cooling water. 2. With the tank valve still turned off, flood the second stage completely with water, and thenposition it mouthpiece up. 3. Turn the t...

6.0 HELPFUL HINTS 6.1 TROUBLESHOOTING REGULATORS POSSIBLE CAUSE RECOMMENDED ACTION A. High Inhalation Effort at Depth: 1. Inlet filter clogged. Replace the filter. 2. No air flowing through the dry air bleed system. Check the flow rate coming out of the one-way bleed valve . If no or low air flow is...

6.4 HANDLING TIPS How your customers treat their regulators will directly influence the unit’s function and durability. Following are a few tips that you can pass on to your customers to help assure the durability of their Sherwood Scuba regulator. A. Pre-Dive Checks 1. Check the hoses and hose conn...

7.0 TWO YEAR WARRANTY AND MAINTENANCE INFORMATION 7.1 PROPER PROCEDURE FOR WARRANTY PAPERWORK 1. For detailed information on the operation of Sherwood Scuba Two Year Limited Warranty,please refer to Sherwood Scuba Technical Bulletin # 112. You can also contact your SherwoodDistributor if you still h...