Alfa Laval Air Actuated Valve 741-X-10S-X-316L

Oil injected into the unthreaded thru hole in each end of the actuator

Actuator rolled on a flat surface for uniform coverage

Sign off on the actuator lubrication

Warning: This procedure requires trained personnel with PPE!

Nylon Locking Pin located in the middle of the stem thread?

Nylon Locking Pin replaced after disassembly?

Old nylon pin punched out with an 1/8 inch or smaller diameter punch?

New nylon locking pin inserted?

Sign off on the actuator stem replacement

- Bushings guide the actuator stem while packings provide sealing around the stem

- The bushing and packing should both be replaced if one or the other fails. Even if only one end fails both ends of the actuator should be serviced

- Disconnect and remove actuator completely from valve before proceeding with the steps that follow valve dissassembly

- Replace all worn or damaged components as required

- Spray stem and o- ring with Sanitary Lubricant

- Make sure all valve bodies are mated properly before securing with clamps

- Tighten all clamps securely to assure proper alignment

- When disassembling and assembling valve, bench area should be clean to prevent marking and nicking of seats;

Inspect Valve Body Seat(s) for nicks and scratches and other signs of excessive wear

Inspect Valve Stem & Seat(s) rubber or PTFE seat(s) for signs of cracking, tearing, checking, or excessive wear

Inspect stem finish for galling, nicks, or scratches

Inspect Split Bushing for signs of cracks, nicks, scratches or excessive wear on inside diameter

Inspect O-ring(s) for cuts, abrasions, flat spots, or other damage

Upload photos of any damage found

Sign off on the valve inspection