August 2016
4
06-237553-001
3.2
2” Valve Assembly
Note:
The items refer to Figure 1.
1. Inspect the cleanliness of lubricated O-rings on the new piston assembly. Re-lubricate O-
rings if needed. Discard the old Piston Assembly, including the O-rings.
2. Press the new piston assembly (Item 3) into the valve body. When installing the new piston
assembly, lightly lubricate the area of upper O-ring travel in valve body to ease installation.
Do not lubricate near the outlet.
3. Install the spring.
4. Apply lubricant to the new Cap O-ring (Item 1). Install the new Cap O-ring onto the groove
in the valve cap.
5. Screw the valve cap onto the valve body and torque to 50-55 ft-lbs (68-75 N-m).
6. Apply lubricant to the Neck O-ring (Item 2). Install the Neck O-ring onto the valve neck
groove.
7. If you had to remove the siphon tube for valve disassembly, wire brush the siphon tube
threads to remove the old Loctite
®
residue.
8. Apply a film of Loctite primer to the siphon tube threads and allow three to five minutes to
dry.
9. Apply a film of Loctite sealant to the first several threads and reinstall the siphon tube.
10. Screw the valve and siphon tube onto the cylinder, and torque to 50 to 55 ft-lb (68 to 75
N-m).
Table 3. Valve Components
Figure Item No.
Description
2” Valves Part Number
1
O-ring, cap
Included in Rebuild Kit
2
O-ring, neck
Included in Rebuild Kit
3
Piston Assembly
Included in Rebuild Kit
4
Schrader core
WK-220278-000
Table 4. Other Valve Components
Other Materials
Description
Lubricant
Parker Seal Co. Super-O-Lube or equivalent
Loctite Sealant
Loctite Corp. Sealant, Grade CV or equivalent
Locquic
®
Primer
Loctite Corp. Primer, Grade N or equivalent
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