Filter
Top Products
5.2 DISASSEMBLY Of FIRST STAGE
To view all the parts used in the first stage, fold out the front cover of this manual. The
circled numbers below refer to the corresponding numbers on the drawing.
1. Use 6" or 8" adjustable wrenches to disconnect all hoses from the first stage. Pull back the
hose protector from the inlet end of the hose. Inspect the hoses for wear. Pay particular
attention to the area where the metal ferrules meet the rubber hose material. Replace hoses if
necessary.
2. Unscrew and remove the handwheel .
3. Remove the dust cap .
4. Install a Sherwood regulator support handle (p/n 4700-15) into one of the low-pressure ports.
Use the support handle and a 15" adjustable wrench or bench vise to loosen the yoke nut
from the body . See Photo # 1.
Photo #1
5. Remove the yoke and yoke nut from the body.
6. Use a 5/32" Allen wrench to remove all remaining port plugs from the main body .
7. Use a 3/32" Allen wrench to remove the locking Allen screw from the main body
(see Photo #2).
Photo #2
6
NOTE: If a Sherwood DIN adapter (p/n SAA530O) is installed in place of the normal yoke assembly, remove it
at this time. See Sherwood Scuba Technical Bulletin #104 for servicing procedures for the SAAS300 DIN adapter.
1
8
15
10
9
11 17 17
14