Sherwood Scuba MAXIMUS SRB3600 regulator Spécifications télécharger pdf (Page 12)

4.3 ASSEMBLY OF FIRST STAGE

1. The part number for each regulator kit can be found in Sherwood’s Tools, Repair Kit and

Accessories – Assembly & Maintenance Guide. The kits contain the parts that are always

replaced at every annual service interval. The kit number for the Maximus is 4000-4. For Nitrox

use, the kit # is 4000-4N.

2. Before installing new O-rings on the piston and moving orifice, lubricate the O-rings with

Christo-Lube MCG111 (Sherwood p/n SW-MS150). Installation of the small O-ring on the

piston is made much easier by using the white-colored Sherwood O-ring installation cone (p/n

TL109). Place the cone over the tip of the piston. Slide the lubricated O-ring over the cone until

it slips into the piston groove.

3. Place the new piston seat on a clean piece of paper on a hard flat surface. Press the piston tip

firmly over the seat until it is fully installed. The piston is now rebuilt and ready for installation.

4. Use the Sherwood installation cone to prevent damage to the new O-ring during installation

onto the moving orifice. Use the green O-ring installation cone (p/n 28-TL107) to install first the

new O-ring and then the used backup washer onto the groove on the moving orifice.

Position them so that the black O-ring is closest to the wide end of the moving orifice.

5. Using a greased soft probe,

lightly lubricate the first 1/8" of the small bore in the body

where the small piston and moving orifice O-rings seal.

6. With your finger, push the moving orifice assembly, pointed orifice end first, into the yoke end

of the main body as far as possible. Place the inlet filter , rough side up, on top of the

moving orifice. Place the retaining ring or star washer on top of the filter. Push the retaining

ring or star washer firmly into place with a dowel or screwdriver.

7. Install the used black washer into the hole in the main body where the flow element is

placed. A new washer may be installed if necessary.

8. Install the flow control element into the main body. Tighten the element with a 3/32" Allen

wrench with a torque of 3 in. lbs. (.4 nm). Do not overtighten.

9. Replace the cleaned and lightly lubricated O-ring on the cap .

10. Install the piston assembly squarely into the cap . If any shims were found when the

regulator was disassembled, place them over the piston stem. Then place the main spring

over the piston stem. Install the trim ring onto the body.

11. Install the cap assembly onto the body. Hand-tighten the assembly as tightly as possible, then

install the Sherwood regulator support handle into one of the low pressure ports. Using a 15"

adjustable wrench or a bench vice to hold the cap, tighten the cap onto the body until it

bottoms on the thread.

Do not tighten further.

12. Using your index finger, install the clean and dry one-way bleed valve into the body.

13. Lightly lubricate the body yoke nut threads with grease, and install the yoke and the yoke

nut onto the body.

NOTE

: If you use the bleed valve with the Sherwood logo molded into it P/N 3106-6 you will notice a

"dot" molded near the right side of the logo. Install the bleed valve with the "dot" oriented closest to the

inlet of the regulator (towards the yoke).

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Sherwood Scuba MAXIMUS SRB3600 regulator Spécifications Page 12

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