5-5.4. Pump Control Valve Replacement.
This valve is a ball valve with only open or closed positions. If not already so position valve
handle in OFF position.
Holding valve handle securely, remove nut (18) securing handle (19) and remove handle.
For ease of reconnection, tag or mark hoses in relation to valve in OFF position before
Holding connection points securely, disconnect hoses leading to or away from valve(20).
Remove four nuts (21), washers (22), screws (23), washers (24) and two brackets (25) holding valve.
Holding valve (20) securely, remove two elbows (26). Retain for reuse.
Inspect replacement valve visually for defects. Do not use if defective.
If not so, position valve handle (19) at right angle to valve body. Position valve with handle up and mark valve top
in some manner.
Holding valve handle securely, remove nut (18) and remove valve handle (19).
Wrap male threads with one layer of antiseize tape (item 3, Section II, Appendix F) and install elbows (26)
removed in d., above.
Mark on valve should be at top.
Position valve with shaft through panel opening and mark on top.
For each side of valve, install bracket (25) two screws (23) (through control panel and bracket), and secure with
washer (22) and nut (21). Do not tighten until both brackets have been installed.
Reconnect hoses leading to or away from valve. Follow marking scheme used in disconnection.
Install valve handle (19) with long portion up and secure with nut (18).
The following procedure to be used only for control panel gauges secured with screws.